Hospital beds · TotalCare family

Hill-Rom TotalCare: troubleshooting and error codes

The ServiceForge knowledge base holds 470 documented symptoms for the Hill-Rom TotalCare, with 1118 ranked causes, 1433 diagnostic checks with test points and expected values, and 1667 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Controller LED DS1 flashing

LED DS1 flashing indicates controller error; flash pattern indicates specific fault type

Ranked causes

1. Thermal Cutback (occasional)
2. Throttle Fault 1 (common)
3. SPD Limit Pot Fault (occasional)
4. Low Battery Voltage (occasional)
5. Overvoltage (occasional)
6. Main OFF Fault (occasional)
7. Main Cont FLTS (occasional)
8. Main ON Fault (occasional)
9. PROC/Wiring Fault (rare)
10. Brake ON Fault (rare)
11. Precharge Fault (occasional)
12. Brake OFF Fault (rare)
13. HPD (rare)
14. Current Sense Fault (occasional)
15. HW Failsafe (occasional)
16. EEPROM Fault (rare)
17. Power Section Fault (occasional)

First check

Measure bed temperature

Test point: Ambient temperature around bed
Expected: 15° to 40°C, 15-40°C
Tools: Thermometer

4 more checks with pass and fail actions, 17 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Chair position control malfunction patient safety

Chair positioning control does not articulate bed into chair configuration or articulates incorrectly

Ranked causes

1. Brakes not locked (common)
2. Hydraulic pump motor not running (common)
3. Defective caregiver control panel chair control board (occasional)
4. Hydraulic hoses kinked, pinched, or leaking (occasional)
5. Faulty main caregiver control panel positioning board (occasional)
6. Hilow hydraulic valve coils not operating (occasional)
7. Failed valve coil (occasional)
8. Hydraulic valve coil #13 malfunction (occasional)
9. Hydraulic valve coil #15 malfunction (occasional)
10. Foot down valve coils #6 or #7 not functional (occasional)
11. Position sensor malfunction (occasional)
12. Head up valve coils #1 or #2 not functional (occasional)
13. Foot in valve coils #9 or #12 not functional (occasional)
14. Damaged position sensor or calibration needed (occasional)
15. Damaged hydraulic valves (occasional)
16. Loose or damaged footboard position sensor (occasional)

First check

Bed articulates when chair control pressed

Test point: Bed articulation
Expected: Bed system begins to articulate

22 more checks with pass and fail actions, 17 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Chair position control unresponsive patient safety

Chair positioning control does not articulate bed sections to expected positions or articulation timing is abnormal

Ranked causes

1. Foot down hydraulic valve coils #6 and #7 not operating (common)
2. Hydraulic hoses kinked, pinched, or leaking (common)
3. Position sensors not functional or miscalibrated (common)
4. Head up hydraulic valve coils #1 and #2 not operating (common)
5. Foot in hydraulic valve coils #9 and #12 not operating (common)
6. Loose or damaged position sensor (occasional)
7. Damaged hydraulic valves (occasional)
8. Foot out and foot in hydraulic valve coils not operating (occasional)
9. Damaged siderail control board (occasional)
10. Brake not set control improperly adjusted (occasional)
11. Restraints, obstructions, or improper accessories causing slow articulation (occasional)
12. Dirty or faulty hydraulic valve affecting articulation speed (occasional)
13. Hydraulic manifold and pump failure (rare)
14. CPR valve partially activated (rare)
15. Foot articulation rod valve S7 slow (rare)
16. Foot retraction rod valve S11 slow (rare)

First check

Foot section articulates normally when control activated

Test point: Foot section
Expected: Articulates down to 70 degrees in recliner position

12 more checks with pass and fail actions, 16 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

System has low voltage power failure high voltage

Low voltage circuits are not functioning; system control and logic circuits may be inactive; bed operations are not responsive.

Ranked causes

1. AC power source not supplying correct voltage (common)
2. Damaged power cord or loose plug connections (common)
3. Loose or damaged PCM board connectors and wiring (occasional)
4. Faulty full-wave bridge rectifier (occasional)
5. Blown 23V DC 5A fuse F17 or F18 (common)
6. Blown 8.5V DC 7A fuse F5 (common)
7. Blown VBB 3.5A fuse F2 (common)
8. Blown +15V DC_MTS 3.5A fuse F6 (common)
9. Blown +15V DC 3.5A fuse F8 (common)
10. Blown VBAT 1.5A fuse F9 (common)
11. Blown +15V_VBAT 1.0A fuse F10 (common)
12. Blown PCM 1.5A fuse F1 (common)
13. Faulty Power Control Module P.C. board (rare)

First check

Measure AC voltage at wall power source with bed unplugged

Test point: AC power source outlet
Expected: 104 to 127V AC, +/- 23 V
Tools: AC Voltmeter

11 more checks with pass and fail actions, 13 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bed flat control ineffective patient safety

Bed flat control does not lower bed sections to flat position or articulation response abnormal

Ranked causes

1. Function lockout applied (common)
2. Caregiver control P.C. board defective (common)
3. Main caregiver control panel P.C. board defective (common)
4. Hilow hydraulic valve coils not operating (common)
5. Hydraulic hoses kinked or pinched (common)
6. Hydraulic fittings leaking (common)
7. Damaged hydraulic valves (occasional)
8. Head end valve coil #14 defective (occasional)
9. Foot end valve coil #2 defective (occasional)
10. Hilow hydraulic valve not seating properly (occasional)
11. Hydraulic hose fittings leaking (occasional)
12. Position sensors miscalibrated (occasional)

First check

Enabled Flat control activates bed articulation

Test point: Flat control button, bed motion
Expected: Bed articulates, Chair position indicator flashes

11 more checks with pass and fail actions, 12 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

NAWI Class IIII Scale / GCI Control malfunction

Scale does not respond, displays error messages (Center patient in bed, Task request cannot be achieved), weight reads 0, or scale sends calibration value greater than 100.

Ranked causes

1. Unit not plugged into appropriate power source (common)
2. Cabling not securely connected (common)
3. Fault codes present in scale P.C. board (common)
4. One load beam reading out of range (occasional)
5. Scale cannot communicate with GCI or scale P.C. board detects errors (occasional)
6. Scale calibration value greater than 100 at end of calibration (occasional)
7. Scale fails Tare and Auto compensation commands (occasional)
8. PPM and PRM modules removed during calibration (occasional)
9. Items added to or removed from bed during weighing (common)
10. Bed cannot be tared; Tare + Preset1 + Preset2 + Zero-Corr + weight display less than -17.99 lb (rare)

First check

Verify unit is plugged into appropriate power source

Test point: Power outlet
Expected: Unit powered and operational

17 more checks with pass and fail actions, 10 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Blower does not operate

Blower fails to operate during bed initialization or on command

Ranked causes

1. P14 plug disconnected or incorrectly seated on PCM (common)
2. Blown fuse F8 on PCM (common)
3. Faulty TFSCM, cable mounts, or TSCM (occasional)
4. Low voltage at blower connector P1 (common)
5. Defective blower motor (occasional)
6. No AC power at blower input P1-4/P1-5 (occasional)
7. Blower control circuit failure in TFSCM (occasional)
8. Faulty power distribution or weighframe-to-surface cable (occasional)
9. PCM fuse F6 blown or low voltage at F6 (occasional)

First check

Verify P14 plug is connected to P10 on PCM

Test point: P14 to P10 connection
Expected: Black wire toward head of bed

7 more checks with pass and fail actions, 9 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Reverse Trendelenburg/Trendelenburg control does not operate properly patient safety

Head or foot section does not rise to expected angle when Reverse Trendelenburg or Trendelenburg control is pressed; section may not move or move partially

Ranked causes

1. Position sensor mechanical linkage disconnected or misaligned (occasional)
2. Position sensors not calibrated (occasional)
3. Hydraulic pump not operating (common)
4. Hydraulic hoses kinked or pinched (occasional)
5. Hydraulic valve coil malfunction (occasional)
6. Hydraulic valve damage (occasional)
7. Head section hydraulic cylinder malfunction (occasional)
8. Foot section hydraulic cylinder malfunction (occasional)
9. Control P.C. board failure (occasional)

First check

Press Reverse Trendelenburg control with bed flat

Test point: Bed articulation
Expected: Head section rises and stops at approximately 15° above foot end

8 more checks with pass and fail actions, 9 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Reverse Trendelenburg/Trendelenburg control malfunction patient safety

Bed sections fail to move or move incorrectly in response to Reverse Trendelenburg or Trendelenburg control commands; foot section does not rise to approximately 15° above head

Ranked causes

1. Mechanical linkage of position sensors incorrectly connected (occasional)
2. Sensor cables broken, shorted, or disconnected; position sensors not calibrated (common)
3. Hydraulic pump motor not operating (occasional)
4. Hydraulic system fluid level low (common)
5. Hydraulic hoses kinked, pinched, or leaking (occasional)
6. Hydraulic manifold valve coil malfunction (occasional)
7. Head hydraulic cylinder malfunction (occasional)
8. Hilow foot hydraulic cylinder malfunction (occasional)
9. Intermediate panel control PCB malfunction (occasional)

First check

Verify mechanical linkages of position sensors are correctly connected

Test point: Position sensor linkage points
Expected: All linkages properly attached and seated

9 more checks with pass and fail actions, 11 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bed flat control will not flatten bed patient safety

Pressing flat control does not lower bed sections to flat position

Ranked causes

1. Hydraulic valve coil #14 inoperative (occasional)
2. Hydraulic valve coil #2 inoperative (occasional)
3. Hilow hydraulic valve not seating (occasional)
4. Hydraulic hose fittings leaking (common)
5. Position sensors require calibration (common)
6. Footboard control inoperative (occasional)
7. Caregiver control P.C. board malfunction (occasional)
8. Main caregiver control panel P.C. board defective (rare)

First check

Verify hilow hydraulic valve seating

Test point: Hilow hydraulic valve
Expected: Properly seated

4 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

CPR release malfunction patient safety

CPR/Trendelenburg foot pedal does not lower head or foot/knee sections to flat position within specified time

Ranked causes

3. CPR release manifold valve faulty (occasional)
4. CPR actuation control misalignment or mechanical centering issue (occasional)
5. Electrical signal cable shorted or disconnected (occasional)
6. Connector P20 disconnected from power control board (occasional)
7. CPR actuation control not making electrical contact before valve opens (occasional)
8. Hydraulic system malfunction (occasional)
9. Position sensor mechanical linkage or cable malfunction (occasional)
10. Treatment/sleep surface not inflating to CPR ready state (occasional)

First check

Verify CPR pedal operation with load

Test point: CPR/TREN foot pedal with person over 90 lb in chair-egress position
Expected: Head section flat within 10 seconds; foot/knee sections flat within 25 seconds, head within 10 sec, foot/knee within 25 sec

10 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Indicators (LED) do not illuminate

Indicator lights on caregiver interface or siderail do not light up or remain dark; buttons and displays unresponsive

Ranked causes

1. Graphical Caregiver Interface screen in sleep mode (common)
2. Power cord unplugged or disconnected (common)
3. Battery low or needs replacement (occasional)
4. Brake not set control improperly adjusted or cable damaged (occasional)
5. Night light bulb burned out or loose (occasional)
6. Caregiver control panel Night light P.C. board failure (occasional)
7. Main caregiver control panel positioning P.C. board failure (occasional)
8. Power control P.C. board failure on base frame (rare)

First check

GCI screen wakes when ENTER pressed

Test point: GCI Control screen
Expected: Screen illuminates

14 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Intermediate siderail knee control does not respond patient safety

Caregiver control on intermediate siderail for knee up/down does not raise or lower knee section

Ranked causes

1. Caregiver control P.C. board failure in intermediate siderail (common)
2. Hydraulic pump motor not operating (occasional)
3. Insufficient hydraulic fluid in reservoir (common)
4. Kinked or leaking hydraulic lines (occasional)
5. Hydraulic valve coil malfunction (occasional)
6. Foot hydraulic cylinder failure (occasional)
7. Head hydraulic cylinder failure (occasional)
8. Knee hydraulic cylinder failure (occasional)

First check

Test knee control button on intermediate siderail

Test point: Intermediate siderail knee up/down control
Expected: Knee section rises and lowers

3 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Knee up/down control malfunction patient safety

Intermediate siderail knee section does not rise or lower when control is pressed

Ranked causes

1. Caregiver control P.C. board failure (common)
2. Hydraulic pump motor not operating (common)
3. Insufficient hydraulic fluid (common)
4. Kinked or leaking hydraulic lines (occasional)
5. Hydraulic valve coil failure (occasional)
6. Hilow foot hydraulic cylinder failure (occasional)
7. Head hydraulic cylinder failure (occasional)
8. Knee hydraulic cylinder failure (occasional)

First check

Opposite siderail knee control functions

Test point: Opposite siderail knee up/down button
Expected: Knee section rises/lowers

5 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Scale/GCI calibration error troubleshooting

Calibration procedure returns error code instead of valid coefficient; load beam response does not track properly, beam connectors may be misaligned, or scale board is damaged.

Ranked causes

1. Beam readings not valid or not responding (occasional)
2. Zero readings not valid during calibration (occasional)
3. Max reading improper for right foot load beam during calibration (occasional)
4. Max reading improper for left foot load beam during calibration (occasional)
5. Max reading improper for left head load beam during calibration (occasional)
6. Max reading improper for right head load beam during calibration (occasional)
7. Matrix calculation error in scale processor (rare)
8. Coefficient value out of acceptable range (occasional)

First check

Perform calibration and evaluate returned error code

Test point: Calibration error code table
Expected: Error code returned matches one of codes 1, 2, 4, 5, 6, 7, 20, or 21

8 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

System power failure high voltage

Bed system does not power on or operate normally when plugged in

Ranked causes

1. Defective power fuse F3 (15 A Slo-blow) (common)
2. Defective power fuse F2 (VBB, 3.5 A) (common)
3. Defective power fuse F6 (+15 V DC_MTS, 3.5 A) (common)
4. Defective power fuse F8 (+15 V DC, 3.5 A) (common)
5. Defective power fuse F9 (VBAT, 1.5 A) (common)
6. Defective power fuse F10 (+15 V_VBAT, 1.0 A) (common)
7. Defective power fuse F1 (PCM, 1.5 A) (common)
8. Defective Power Control Module P.C. board (occasional)

First check

Measure voltage across fuse F3

Test point: F3
Expected: 24 V DC on each side
Tools: Voltmeter

8 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bed up control does not raise bed patient safety

Pressing bed up control on siderail does not lift bed or head section

Ranked causes

1. Hydraulic pump motor not running (common)
2. Defective head siderail Bed up control board (occasional)
3. Hydraulic valve coil not energizing (occasional)
4. Failed valve coil (occasional)
5. Hydraulic valve coils #13 or #15 not functional (occasional)
6. Hydraulic hoses kinked, pinched, or leaking (occasional)
7. Hydraulic valve not seating properly (occasional)

First check

Bed raises when bed up control is pressed and held

Test point: Bed frame
Expected: Bed system rises

9 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Caregiver control malfunction—head siderail bed up function patient safety

Bed up control does not raise bed when pressed on head siderail

Ranked causes

1. Hilow hydraulic valve coils inoperative (common)
2. Hydraulic hoses kinked or pinched (occasional)
3. Damaged hydraulic valves (occasional)
4. Hydraulic valve coil #13 failure (occasional)
5. Hydraulic valve coil #15 failure (occasional)
6. Caregiver control panel P.C. board defective (rare)
7. Weigh frame junction P.C. board malfunction (rare)

First check

Press bed up control

Test point: Bed up control input
Expected: Bed system rises

3 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Intermediate siderail head control does not respond patient safety

Caregiver control panel on intermediate siderail for head up/down does not raise or lower head section

Ranked causes

1. Kinked or pinched hydraulic hoses (common)
2. Hilow hydraulic valve coils inoperative (occasional)
3. Damaged hydraulic valves (occasional)
4. Hydraulic valve coil #13 malfunction (head end upward only) (rare)
5. Hydraulic valve coil #15 malfunction (foot end upward only) (rare)
6. Head up/down control P.C. board failure (occasional)
7. Main caregiver control P.C. board failure (occasional)

First check

Verify intermediate siderail head control operation

Test point: Intermediate siderail head up/down control
Expected: Head section raises and lowers

1 more check with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

LED indicators do not illuminate caution

Graphical Caregiver Interface (GCI) Control screen is dark or indicator lights are not functioning. Multiple indicator types may be affected including AC power indicator, Service required, Chair position, Bed exit, Battery, Brake not set, and Night light indicators.

Ranked causes

1. Power not applied to system or cord unplugged (common)
2. Power control P.C. board failure (occasional)
3. Bed exit cable disconnected from power control board (occasional)
4. Main Caregiver P.C. Board or siderail P.C. Board failure (occasional)
5. Battery low or needs replacement (battery option models) (occasional)
6. Night light bulb burned out or loose (common)
7. Night light control P.C. board failure (occasional)

First check

Press ENTER control on GCI screen

Test point: GCI Control screen
Expected: GCI Control screen illuminates

8 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

NAWI scale weight display malfunction patient safety

Scale GCI control not functioning correctly, weight readings abnormal or error messages displayed

Ranked causes

1. Load beam readings out of range (common)
2. GCI cannot communicate with scale or scale P.C. board detects errors (common)
3. Weight display always reads zero (occasional)
4. Calibration error with value greater than 100 at end of calibration (occasional)
5. Scale fails tare and auto compensation commands (occasional)
6. Items being added or removed from bed during operation (occasional)
7. Load beam shorted excitation voltage (occasional)

First check

Calibrate scale and check for returned error

Test point: GCI display
Expected: No error codes returned

7 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Patient exit and priority nurse call malfunction patient safety

Patient exit detection, alarm controls, or priority nurse call do not activate or function; LED indicators may not illuminate

Ranked causes

1. Defective caregiver control panel Bed Exit detection P.C. board (common)
2. Defective Bed Exit P.C. board in Bed Exit module (common)
3. SideCom Communication System Nurse Call/Ped P.C. board failure (occasional)
4. LED indicator failure or alarm system malfunction (occasional)
5. Caregiver control panel Alarm on/off control P.C. board failure (occasional)
6. Main caregiver control panel P.C. board failure (occasional)
7. Weigh frame junction P.C. board failure (occasional)

First check

Place weight >75 lb on bed; press Enable key; within 16s press Bed exit control and select alarm delay

Test point: Bed Exit detection controls
Expected: Indicator comes on for each control pressed one at a time

9 more checks with pass and fail actions, 7 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

AC power failure caution

'Unplugged AC' indicator illuminates even when system power cord is plugged into appropriate power source. No AC voltage at input or output stages.

Ranked causes

1. Low AC power source voltage (common)
2. Power cord or plug damaged/loose (common)
3. Loose connections at header connector P11 (occasional)
4. AC line filter failure (occasional)
5. Transformer failure or incorrect voltage tap settings (occasional)
6. Blown fuse F13 or F14 (common)

First check

Measure AC voltage at power source

Test point: Building AC outlet
Expected: 104 to 127V AC, 104 to 127

6 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Caregiver control malfunction—intermediate siderail foot out/in caution

Foot section fails to extend or retract when foot out/in arrow control pressed on intermediate siderail

Ranked causes

1. Opposite siderail functions abnormal (common)
2. Hydraulic pump motor not operating (common)
3. Incorrect hydraulic fluid level (common)
4. Hydraulic lines kinked or leaking (occasional)
5. Hydraulic valve coils not functioning (occasional)
6. Defective caregiver control P.C. board (occasional)

2 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Caregiver control malfunction—intermediate siderail head up/down patient safety

Head up or head down control does not move head section on intermediate siderail

Ranked causes

2. Hilow hydraulic valve coils inoperative (common)
4. Hydraulic valve coil #13 inoperative (head end only) (occasional)
5. Hydraulic valve coil #15 inoperative (foot end only) (occasional)
6. Head up/down control P.C. board defective (rare)
7. Caregiver control P.C. board malfunction (rare)
8. Main caregiver control panel P.C. board defective (rare)

First check

Inspect hydraulic hoses for kinks or pinches

Test point: All hydraulic hose routing
Expected: No kinks or pinches; no fluid leaks

3 more checks with pass and fail actions, 8 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Caregiver control malfunction—intermediate siderail knee up/down patient safety

Knee up or knee down arrow controls on intermediate siderail do not raise or lower knee section as expected

Ranked causes

1. Caregiver control P.C. board malfunction in intermediate siderail (common)
2. Hydraulic pump motor not operating (occasional)
3. Low hydraulic fluid level (occasional)
4. Hydraulic line kinks or leaks (occasional)
5. Hydraulic valve coils malfunction (occasional)
6. Hilow foot hydraulic cylinder malfunction (rare)

First check

Press knee up/down arrow control on intermediate siderail

Test point: Intermediate siderail knee up/down arrow buttons
Expected: Knee section rises or lowers

5 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Foot articulation cylinder does not move up caution

Hydraulic foot section fails to raise

Ranked causes

1. Hose is damaged (common)
2. Valve coil S05 is defective (occasional)
3. Valve coil S08 is defective (occasional)
4. Valve S05 is defective (occasional)
5. Valve S08 is defective (occasional)
6. Flow control has contamination in its orifice (occasional)

First check

Valve coil S05 resistance

Expected: 14-16 Ohms
Tools: Ohmmeter

1 more check with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Foot out/in control malfunction patient safety

Intermediate siderail foot section does not extend or retract when control is pressed

Ranked causes

1. Opposite siderail malfunction (common)
2. Hydraulic pump motor not operating (common)
3. Insufficient hydraulic fluid (common)
4. Kinked or leaking hydraulic lines (common)
5. Hydraulic valve coil failure (occasional)
6. Caregiver control P.C. board failure (occasional)

First check

Opposite siderail foot control functions

Test point: Opposite siderail foot in/out button
Expected: Foot section extends/retracts

4 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Foot retraction cylinder does not move in caution

Hydraulic foot retraction fails to retract

Ranked causes

1. Hose is damaged (common)
2. Valve coil S10 is defective (occasional)
3. Valve coil S11 is defective (occasional)
4. Valve S10 is defective (occasional)
5. Valve S11 is defective (occasional)
6. Flow control has contamination in its orifice (occasional)

First check

Valve coil S10 resistance

Expected: 14-16 Ohms
Tools: Ohmmeter

1 more check with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Foot retraction cylinder does not move out caution

Hydraulic foot retraction fails to extend

Ranked causes

1. Hose is damaged (common)
2. Valve coil S09 is defective (occasional)
3. Valve coil S12 is defective (occasional)
4. Valve S09 is defective (occasional)
5. Valve S12 is defective (occasional)
6. Flow control has contamination in its orifice (occasional)

First check

Valve coil S09 resistance

Expected: 14-16 Ohms
Tools: Ohmmeter

1 more check with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Head and intermediate siderail controls do not respond patient safety

Caregiver control panel arrow buttons for head section and foot section do not extend/retract siderails or bed sections when pressed

Ranked causes

1. Opposite siderail not functioning (common)
2. Hydraulic pump motor not operating (common)
3. Insufficient hydraulic fluid (occasional)
4. Hydraulic line kinks or leaks (occasional)
5. Hydraulic valve coils not functioning (occasional)
6. Caregiver control panel P.C. board failure (occasional)

First check

Press enabled Foot out/Foot in arrow control on siderail

Test point: Intermediate siderail
Expected: Foot section extends/retracts

5 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Head hi-low does not move up caution

Head hi-low section fails to raise

Ranked causes

1. Hose kinked, leaking, or damaged (common)
2. Valve coil S15 defective (occasional)
3. Valve S15 internal fault (occasional)
4. Emergency Trendelenburg valve contaminated seat (occasional)
5. Pilot operated check valve piston stuck (rare)
6. Flow control orifice contaminated (occasional)

First check

Measure S15 solenoid coil resistance

Test point: Valve coil S15
Expected: 14-16 Ohms, 14-16
Tools: Ohmmeter

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Head hilow does not move up caution

Hydraulic head hilowering fails to raise

Ranked causes

1. Hose is damaged (common)
2. Valve coil S15 is defective (occasional)
3. Valve S15 is defective (occasional)
4. Emergency Trendelenburg valve has contamination on its seat (occasional)
5. Pilot operated check pilot piston has contamination holding it closed (rare)
6. Flow control has contamination in its orifice (occasional)

First check

Valve coil S15 resistance

Expected: 14-16 Ohms
Tools: Ohmmeter

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Head siderail control does not respond patient safety

Caregiver control panel for head up/down does not raise or lower head section when control is pressed

Ranked causes

1. Kinked or pinched hydraulic hoses (common)
2. Hydraulic valve coil #14 malfunction (head end downward) (occasional)
3. Caregiver control P.C. board failure (occasional)
4. Weigh frame junction P.C. board failure (rare)
5. Hilow hydraulic valve coil inoperative (occasional)
6. Leaking hydraulic fittings (occasional)

First check

Visually inspect hydraulic hoses for kinks or pinches

Test point: All hydraulic hoses to head section
Expected: Hoses straight and unobstructed

5 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Head up/head down control malfunction patient safety

Head section does not raise or knee section does not articulate correctly when head up control is pressed

Ranked causes

1. Position sensor mechanical linkage disconnected (occasional)
2. Position sensor cable broken, shorted, or disconnected (occasional)
3. Hydraulic hoses kinked or pinched (common)
4. Hilow hydraulic valve coils inoperative (occasional)
5. Hydraulic valve #15 faulty (foot end malfunction) (occasional)
6. Damaged hydraulic valves (occasional)

First check

Verify head/knee section positioning

Test point: Bed controls, press Head Up arrow
Expected: Knee section rises to 10°, head section raises to 55°, pauses, continues to mechanical limits degrees, as specified

5 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Low voltage power failure

Low DC voltages not available. System does not operate properly. 23V, 15V, or 8.5V DC supplies may be absent or low.

Ranked causes

1. Low or absent AC power source (common)
2. Power cord or plug damaged/loose (common)
3. Damaged connectors on power control P.C. board (occasional)
4. Full-wave bridge rectifier failure (occasional)
5. Blown DC power fuses (common)
6. Power control module P.C. board failure (rare)

First check

Measure AC voltage at power source

Test point: Building AC outlet
Expected: 104 to 127V AC, 104 to 127

8 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Patient entertainment malfunction

Music or TV controls do not activate room entertainment system; system does not function after control activation

Ranked causes

1. Improper cabling connections or room entertainment system not operational (common)
2. Defective caregiver control panel Music control P.C. board (common)
3. SideCom Communication System Entertainment/Lighting P.C. board failure (occasional)
4. Main caregiver control panel P.C. board failure (occasional)
5. Weigh frame junction board failure (occasional)
6. Defective caregiver control panel TV control P.C. board (occasional)

First check

Verify SideCom is connected to room entertainment infrastructure; room music system is operational

Test point: SideCom Communication System connection and room music system
Expected: SideCom connected to room infrastructure; room music system operational

9 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Patient Entertainment system malfunction

Music or TV control fails to activate room entertainment system; entertainment system does not respond to patient controls; music or TV cannot be turned off

Ranked causes

1. SideCom system not connected to room entertainment infrastructure or room system not operational (common)
2. Defective Music control P.C. board in intermediate siderail (common)
3. SideCom Entertainment/Lighting P.C. board failure (occasional)
4. Main caregiver control panel P.C. board failure (occasional)
5. Weigh frame junction board failure (rare)
6. TV control P.C. board failure in intermediate siderail (common)

First check

Verify SideCom system connected to room entertainment; confirm room music system operational

Test point: SideCom connection and room equipment status
Expected: SideCom connected to infrastructure; room system operational

5 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Patient light controls malfunction

Read light or Room light controls do not activate or do not function when pressed; lights do not come on

Ranked causes

1. Burned out lamp bulb or damaged light fixture (common)
2. Defective caregiver control siderail Read light control P.C. board (common)
3. Loose or disconnected lamp cable connections (occasional)
4. Defective caregiver control panel Read control P.C. board (occasional)
5. Loose or disconnected room light cable connections (occasional)
6. Defective caregiver control panel Room control P.C. board (occasional)

First check

Press siderail Read light control on control panel

Test point: Read light control
Expected: Patient read light comes on

5 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Slow bed articulation time (low flat to chair position and back)

Time required to cycle bed from low flat position to full chair position and back is slower than normal

Ranked causes

1. Restraints, obstructions, or accessories incorrectly attached (occasional)
2. Insufficient or contaminated hydraulic oil (occasional)
3. Hydraulic system leaks (occasional)
4. Dirty or faulty hydraulic valve (occasional)
5. Down valve faulty causing slow downward articulation (occasional)
6. Hydraulic manifold or pump failure (rare)

First check

Verify downward articulation speed is normal

Test point: Bed system during full chair to flat cycle
Expected: Downward articulation time is normal per specification

6 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

System has no AC power high voltage

AC power indicator is not illuminated or system is unresponsive; bed will not respond to commands.

Ranked causes

1. AC power source not supplying correct voltage (common)
2. Damaged power cord or loose plug connections (common)
3. Loose or damaged header connector P11 on PCM board (occasional)
4. Blown power fuse F13 or F14 (15A 3AG) (occasional)
5. Faulty AC line filter (occasional)
6. Faulty transformer or incorrect voltage taps (occasional)

First check

Measure AC voltage at wall power source with bed unplugged

Test point: AC power source outlet
Expected: 104 to 127 V AC, +/- 23 V
Tools: Voltmeter on AC scale

6 more checks with pass and fail actions, 6 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Air blower malfunction

Air blower does not operate during bed initialization or operates intermittently. No voltage or low voltage present at blower power connector.

Ranked causes

1. No AC voltage at blower connector P1 (common)
2. No DC voltage rise at P1-1 to P1-2 (common)
3. Low voltage at fuse F6 on PCM (occasional)
4. Damaged power or signal cables (occasional)
5. Faulty TFSCM (occasional)

First check

Measure AC voltage at P1-4 to P1-5 on air source cable connector

Test point: P1-4, P1-5
Expected: approximately 120V AC

4 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Air manifold malfunction caution

Foot treatment surface, foot mattress bladders, or head/thigh mattress sections do not inflate/deflate as expected at different bed positions

Ranked causes

1. Kinked or improperly connected air hoses (common)
2. Blower motor not operating or air supply failure (common)
3. Position sensor malfunction causing incorrect deflation sequence (occasional)
4. Air module or surface treatment module malfunction (occasional)
5. Foot mattress bladder leak or damage (occasional)

First check

Verify foot treatment surface function

Test point: Foot treatment surface in operation
Expected: Surface functions properly with correct inflation/deflation

5 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bed down control will not lower bed patient safety

Pressing and holding the Bed down control does not cause the bed to lower from high position. Bed may lower from opposite siderail or other control functions may not work.

Ranked causes

1. Caregiver control panel Bed down control P.C. board failure (common)
2. Hilow hydraulic valve coil not operating (common)
3. Incorrect voltage at hydraulic valve coil harness (occasional)
4. Hydraulic valve not seating or hydraulic hoses kinked/pinched (occasional)
5. Hydraulic fittings leaking or valve coils #14 or #16 inoperative (occasional)

First check

Test bed lower control on opposite siderail

Test point: Opposite siderail Bed down control
Expected: Bed lowers with opposite siderail Bed down control

6 more checks with pass and fail actions, 9 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bed will not flatten when flat control pressed patient safety

Bed system does not articulate to flat position; may pause, emit beep, or only partially flatten; present with function lockouts or non-responsive controls.

Ranked causes

1. Function lockouts applied to system (common)
2. Caregiver control P.C. board malfunction (common)
3. Hi-Low hydraulic valve coils not operating (occasional)
4. Hydraulic hoses kinked, pinched, or improperly connected (occasional)
5. Position sensors miscalibrated or out of adjustment (occasional)

First check

Confirm flat control enabled and no lockouts active

Test point: Control panel display
Expected: No lockout indicators illuminated; flat control button responsive

6 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Brake/steer malfunction patient safety

Brake or steer pedal does not function correctly; brake or steer position not engaging; indicator light does not illuminate or respond

Ranked causes

1. Brake not set indicator control improperly adjusted or miscalibrated (common)
2. Loose wires or cabling (common)
3. Brake/steer linkage failure or caster assembly damage (occasional)
4. Head end caster swivel failure (occasional)
5. Caster brake gap misadjustment or dual-wheel caster issue (occasional)

First check

Steer pedal (green) engages steer position

Test point: Brake/neutral/steer pedal green position
Expected: Brake not set indicator illuminates; foot end casters lock in steer position

6 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Caregiver control malfunction—head siderail and intermediate siderail foot up/down caution

Foot section fails to raise or lower when enabled foot up/down arrow control pressed on intermediate siderail

Ranked causes

1. Opposite siderail functions abnormal (common)
2. Hydraulic pump motor not operating (common)
3. Hydraulic lines kinked or leaking (occasional)
4. Incorrect hydraulic fluid level (common)
5. Defective caregiver control P.C. board in intermediate siderail (occasional)

3 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Caregiver control malfunction—head siderail bed up/down patient safety

Bed up or bed down arrow controls on head siderail do not raise or lower bed as expected

Ranked causes

1. Hydraulic valve coils not operating properly (common)
2. Hydraulic hoses kinked or pinched (occasional)
3. Damaged hydraulic valves (occasional)
4. Hydraulic valve coil #13 malfunction (head up only) (rare)
5. Hydraulic valve coil #15 malfunction (foot up only) (rare)

First check

Press bed up arrow control on head siderail

Test point: Head siderail up arrow button
Expected: Bed system rises

3 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Emergency Trendelenburg malfunction patient safety

Emergency Trendelenburg function does not lower head end 15° below foot end or control actuator not centered

Ranked causes

1. Emergency Trendelenburg linkage out of adjustment (common)
2. Control actuator not mechanically centered (occasional)
3. Emergency Trendelenburg actuation control out of adjustment (occasional)
4. Trendelenburg hydraulic valve malfunction (occasional)
5. Hilow cylinder malfunction (occasional)

First check

Verify bed lowers head end when Trendelenburg pedal lifted

Test point: CPR/TREN control pedal in flat position
Expected: Head end lowers 15° below foot end

5 corrective actions and part numbers are in ServiceForge. Connect ServiceForge to your AI

Foot articulation cylinder does not move down caution

Hydraulic foot section fails to lower

Ranked causes

1. Hose is damaged (common)
2. Valve coil S06 is defective (occasional)
3. Valve coil S07 is defective (occasional)
4. Valve S06 is defective (occasional)
5. Valve S07 is defective (occasional)

First check

Valve coil S06 resistance

Expected: 14-16 Ohms
Tools: Ohmmeter

1 more check with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Foot up/down control malfunction patient safety

Intermediate siderail foot section does not rise or lower when control is pressed

Ranked causes

1. Opposite siderail malfunction (common)
2. Hydraulic pump motor not operating (common)
3. Kinked or leaking hydraulic lines (common)
4. Insufficient hydraulic fluid (common)
5. Caregiver control P.C. board failure (occasional)

First check

Opposite siderail foot control functions

Test point: Opposite siderail foot up/down button
Expected: Foot section rises/lowers

4 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Head lockout control malfunction patient safety

Head lockout indicator does not illuminate or head section does not respond to lockout control

Ranked causes

1. Defective caregiver control panel P.C. board (common)
2. Defective main caregiver control panel positioning P.C. board (occasional)
3. Defective weigh frame junction electrical box P.C. board (occasional)
4. Defective caregiver control panel Enable key control P.C. board (occasional)
5. Poor siderail cabling connections (rare)

First check

Press Lockout and Head controls simultaneously

Test point: Head lockout indicator and annunciator
Expected: Indicator comes on and annunciator beeps twice

8 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Patient Exit/Priority Nurse Call malfunction patient safety

Patient exit detection does not activate, alarm does not function, or priority nurse call does not operate

Ranked causes

1. Bed Exit detection P.C. board malfunction (common)
2. Bed Exit P.C. board in module malfunction (occasional)
3. SideCom Nurse Call/PED P.C. board malfunction (occasional)
4. Alarm On/Off control P.C. board malfunction (occasional)
5. Main caregiver control panel P.C. board malfunction (occasional)

First check

Verify Enable and Bed Exit controls activate indicators

Test point: Enable and Bed Exit controls with weight >75 lb on bed
Expected: Indicator comes on when each control pressed; alarm delay 0, 2, 4, or 6 seconds selectable

5 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Pulmonary mattress air valve module pressure or vacuum malfunction patient safety

Bed unable to maintain proper cushion pressure; blower behavior abnormal; stepper motor not opening/closing release valve

Ranked causes

1. Stepper motor failure; vacuum not releasing air (common)
2. Blower low speed or not activating (occasional)
3. Mattress hose cross-connection or blockage (occasional)
4. Mattress bladder leak (occasional)
5. Defective mattress fitting or O-rings (occasional)

First check

Activate Max-Inflate mode and monitor blower

Test point: Bed blower operation
Expected: Blower shuts off within 1 minute and stays off for 3 minutes

3 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Scale or Graphical Caregiver Interface (GCI) control malfunction

Scale calibration fails; load beam out of range; cannot communicate with scale or scale board detects errors; scale weight is always zero

Ranked causes

1. Improper cable connections or power source disconnection (common)
2. Scale calibration not completed or Service indicator lamp shows fault codes (common)
3. One or more load beam readings out of range (occasional)
4. GCI cannot communicate with scale or scale board detects errors (occasional)
5. Scale calibration error or invalid coefficient (rare)

First check

Using GCI Main Menu, press and hold up/down arrow buttons for 20 seconds to access Service menu

Test point: GCI Control Service menu access
Expected: Service menu appears and scale calibration starts

6 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Scale/GCI control malfunction patient safety

Scale weigh system or GCI control interface not functioning properly, including calibration failures and display errors

Ranked causes

1. Scale board or load beam replaced without recalibration (common)
2. One load beam reading out of range (occasional)
3. GCI control cannot communicate with scale or scale board detecting errors (occasional)
4. Scale weight reading always zero (occasional)
5. Calibration error with invalid coefficient (occasional)

First check

Perform scale calibration

Test point: GCI Service menu
Expected: Service menu appears after holding up/down arrows 20 seconds

2 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Scale/GCI diagnostics and error troubleshooting

Scale A/D readings require evaluation through diagnostic commands; technician must access tools menu, enter service code, and retrieve channel readings to identify load beam or communication problems.

Ranked causes

1. Load beam signal not responding or out of valid range (common)
2. Load beam shorted to ground or power supply failure (occasional)
3. Load beam wiring or connector error (occasional)
4. Scale board failure (occasional)
5. Load beam response weak or degrading with load (occasional)

7 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

SideCom Communication System or Nurse Call malfunction patient safety

Nurse call controls, caregiver controls, or TV controls do not activate; system does not function normally

Ranked causes

1. Defective caregiver control panel nurse call control P.C. board (common)
2. Main caregiver control panel P.C. board failure (common)
3. SideCom Communication System Nurse Call/Ped P.C. board failure (occasional)
4. TV control P.C. board failure in intermediate siderail (occasional)
5. Loose or disconnected SideCom Communication System junction board connection (occasional)

First check

Press each Nurse Call control on bed with test apparatus attached to SideCom board

Test point: SideCom Communication System board - head end bumper
Expected: Nurse call indicator comes on as each control is pressed

4 more checks with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Air blower does not operate

Air blower fails to run during bed initialization or operation; no air flow detected.

Ranked causes

1. Faulty air source cable, signal distribution cable, or weighframe to surface cable (common)
2. Low voltage at PTC R23 or fuse F6 (occasional)
3. Faulty power distribution cable or weighframe to surface cable (occasional)
4. Faulty TFSCM or PCM (rare)

First check

Measure voltage from heat sink to PTC R23 connector side on TFSCM

Test point: PTC R23
Expected: 14.0V DC to 16.0V DC, +/- 2.0 V
Tools: Voltmeter

1 more check with pass and fail actions, 5 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Air manifold malfunction; foot and surface mattress air deflation issues patient safety

Foot mattress or surface mattress bladders fail to inflate/deflate properly when bed articulates or foot section extends/retracts

Ranked causes

1. Air hoses kinked, obstructed, or improperly connected (common)
2. Blower motor not operating (common)
3. Mattress bladder gross leak (occasional)
4. Position sensors not functioning (occasional)

First check

Verify foot treatment surface functions properly

Test point: Foot mattress operation and controls
Expected: Foot treatment surface functions properly

2 more checks with pass and fail actions, 4 corrective actions, and part numbers are in ServiceForge. Connect ServiceForge to your AI

More symptoms

Air system pressure below specification
Bed articulation beyond 70° or to chair egress position malfunction
Bed articulation malfunction
Bed articulation speed abnormal or inconsistent
Chair position control does not articulate bed
Chair position control does not function
Foot hi-low does not move up
Foot hilow does not move up
Foot section moves down to 70°, retracts to recliner, stops incorrectly
Head cylinder does not move up
Head cylinder moves up slowly
Head hi-low does not move down
Head hi-low moves up slowly
Head hilow does not move down
Head hilow moves up slowly
Hydraulic foot pump pedal will not raise bed
Intermediate siderail foot control does not respond
Knee cylinder does not move up
Knee lockout control malfunction
Load beam A/D reading diagnostics
Local Operating Network (LON) communication fault
Night light does not come on
Night light does not illuminate
Scale calibration error
Scale calibration error detected
Scale fails post-calibration verification testing
Scale fails verification testing
Scale shows invalid range for A/D reading
Scale/GCI Control communications failure
Scale/GCI malfunction
SideCom Communication System/Nurse Call malfunction
Siderail mechanism does not hold
Air blower did not initialize
Air blower malfunction or noise
All functions fail to extend
Bed drifts downward when in flat, full up position
Bed position sensors not calibrated
Brake/steer pedal does not activate steer position
Calibration: Entertainment and Volume Control removal and replacement
Caregiver control malfunction—head siderail bed down function
Caregiver controls not operational
Communication failure with caregiver pendant
Communication failure with left UCM
Communication failure with patient pendant
Communication failure with right UCM
Enable key control does not respond
Enable switch malfunction
Enable switch not functioning
Excessive blower noise
Foot articulation cylinder moves down slowly
Foot articulation cylinder moves up slowly
Foot hi-low does not move down
Foot hilow does not move down
Head cylinder does not move down
Head cylinder drifts down
Head hi-low drifts down
Head hilow drifts down
Head hydraulic cylinder replacement
Head lockout control does not respond
Head section does not move
Head section rises to 55° then pauses before moving to upper limit
Hilow foot hydraulic cylinder replacement
Hilow function raises unit unevenly
Hilow head hydraulic cylinder replacement
Hilow lockout control does not operate
Hilow lockout control does not respond
Hilow lockout control malfunction
Hydraulic system does not function
Hydraulic system malfunction
Knee cylinder does not move down
Knee cylinder moves up slowly
Knee lockout control does not respond
Load beam shorted excitation voltage
Lockout control malfunction
Loss of therapy during bed transport
Master lockout control malfunction
Mattress pressure failure
Max-inflate function does not work
Maximum inflate malfunction
NAWI Class IIII Scale GCI control malfunction
Patient Air Surface Module with Foot Therapy—Pressure failures
Patient controls malfunction
Pulmonary mattress pressure or vacuum problem
Scale fails verification testing after calibration
Scale/GCI communication error
Scale/GCI control communications error
Scale/GCI Control diagnostics shows out-of-range A/D readings
Surface mattress inflation or deflation malfunction
Throttle output signal out of range
Treatment surface air bladders do not inflate
Treatment surface air bladders malfunction
Treatment surface, P500, and SpO2RT 2 air bladders malfunction
Unintentional movement of foot articulation section
Unintentional movement of foot hilow section
Unintentional movement of foot retraction section
Unintentional movement of head hilow section
Unintentional movement of knee section
Zone pressure control failure
Bed does not move in steer mode
Bed exit indicator does not function correctly
Blower does not turn off or maintains constant operation
Blower/supply hose failure
Brake function does not engage all casters or bed moves when brakes applied
Brake not set indicator does not extinguish in brake position
Brake not set indicator illuminates in steer position
Calibration: Articulation position sensing system
Calibration: Brake/steer linkage brake gap
Calibration: Caster wheel brake gap
Calibration: CPR release valve
Calibration: Graphical Caregiver Interface (GCI) Control removal and replacement
Calibration: Hydraulic power unit mounting torque
Calibration: Patient Exit Detection alarm removal and replacement
Calibration: Sleep Surface Siderail Controls removal and replacement
Chair position indicator remains on after control released
Communication failure with GCI Control
Communication failure with PIC (PIC QUERY)
Communication failure with PIC (UPDATE)
Communication failure with Scale Module
Communication failure with SideCom
Communication failure with TFSCM
CPR function fails to lower
CPR/Trendelenburg functions not operating
Electrical fuse blown repeatedly
Emergency Trend function fails to lower
Foot articulation cylinder drifts down
Foot hi-low drifts down
Foot hi-low moves down slowly
Foot hi-low moves up slowly
Foot hilow drifts down
Foot hilow moves down slowly
Foot hilow moves up slowly
Foot retraction cylinder drifts out
Foot retraction cylinder moves in slowly
Foot retraction cylinder moves out slowly
Foot section articulation pauses at 30 degrees
Foot section does not inflate properly
Head cylinder drifts down after being raised
Head cylinder moves down
Head cylinder moves down slowly
Head hi-low moves down slowly
Head hilow moves down slowly
Head section not moving or moving slowly
Head section pressure does not deflate or inflate on demand
Head section zones not inflating properly
Hydraulic fluid leak
Hydraulic power unit installation
Knee cylinder drifts down
Knee cylinder moves down slowly
Knee section not moving or moving slowly
Load beam circuit or component failure
Load beam excitation voltage short to ground
Load beam shorted excitation voltage test 1: voltage measurement
Loss of therapy during transport
Master lockout control does not respond
Motor controller does not operate
Night light does not turn on or off with control
Night light lamp does not illuminate
Position sensor not functioning or misaligned
Pulmonary mattress air valve zone error
Scale A/D readings outside normal range
System power failures
Unplugged AC power indicator does not function
A/D converter timeout
Accessory Receptacle Module replacement
Air Module—Manifold Assembly replacement
Air system pressure error codes 80-17 through 31
Alarm sounds during calibration
All functions fail to extend or retract
Analog-to-digital converter failure
Articulating foot hydraulic cylinder replacement
Battery low indicator flashes continuously or does not turn off
Battery power charge indicator does not come on
Battery replacement needed
Bed does not move to maximum high position on battery
Bed does not reach maximum height without AC power
Bed down control does not lower bed
Bed Exit alarm malfunction
Bed Exit feature or alarm not operational
Bed Exit indicator does not deactivate
Bed Exit indicator does not turn off
Bed Exit malfunction
Bed flat control does not flatten bed
Bleed hydraulic system
Blower does not remain off during idle period
Blower does not turn off after Max-inflate
Blower motor failure
Blower removal for P500 and TotalCare SpO2RT 2 W/CLRT beds
Blower turns on prematurely during idle time
Boost pressure low during rotation
Brake function does not engage fully
Brake not set indicator does not activate when pedal released from brake position
Brake not set indicator does not illuminate when brake released
Brake not set indicator does not turn off in brake position
Brake not set indicator flashes; periodic audible beep sounds
Calibration data corruption
Calibration recall failure due to EEPROM error
Calibration: Articulating foot hydraulic cylinder
Calibration: Bed Scale (Non-OIML)
Calibration: Bed Scale (OIML)
Calibration: Blown fuse—damaged cable/board identification
Calibration: Brake set sensor replacement with torque specification
Calibration: Brake set sensor torque specification
Calibration: Brake/steer linkage brake shoe gap
Calibration: Brake/steer linkage clamp bolt torque and brake gap adjustment
Calibration: Caster wheel axle nut torque and brake adjustment (P1900A)
Calibration: CPR sensor
Calibration: Entertainment and Volume Control PC board replacement
Calibration: Foot brake gap adjustment
Calibration: Foot brake pedal brake gap
Calibration: Foot brake pedal linkage clamp torque
Calibration: Foot brake/steer pedal assembly installation and torque
Calibration: Foot brake/steer pedal brake shoe gap
Calibration: Foot end caster brake shoe gap (P1900A)
Calibration: Foot end caster brake shoe gap (P1900B, P1900C, P1900D-K)
Calibration: Graphical Caregiver Interface (GCI) Control
Calibration: Graphical Caregiver Interface control replacement
Calibration: gravity constants and coefficients
Calibration: Head Angle Indicator and Trendelenburg Indicator
Calibration: Head Angle Indicator and Trendelenburg Indicator removal and replacement
Calibration: Head Angle Indicator and Trendelenburg Indicator replacement
Calibration: Head end caster brake gap adjustment (P1900A)
Calibration: Head end caster brake gap adjustment (P1900B, P1900C, P1900D-K)
Calibration: Head end caster brake/steer pedal distance
Calibration: Head of bed cylinder brace installation
Calibration: Head-end caster assembly brake/steer pedal spacing
Calibration: Head-end caster wheel tension adjustment
Calibration: Hydraulic Manifold Valve Coil
Calibration: Hydraulic Manifold Valve Coil replacement
Calibration: Hydraulic power unit pressure plate compression
Calibration: Hydraulic system air bleed
Calibration: Hydraulic system bleed
Calibration: Hydraulic System Fluid Fill
Calibration: Hydraulic System Oil Fill
Calibration: Hydraulic system oil level
Calibration: Hydraulic valve pressure setting
Calibration: Hydraulic valve torque setting
Calibration: Knee sensor potentiometer position
Calibration: NAWI Class IIII Scale
Calibration: Patient Weigh System (Non-NAWI Class IIII)
Calibration: Post-repair function verification
Calibration: Power Control Module P.C. board fuse verification
Calibration: Power cord electrical grounding and leakage
Calibration: Removal and installation of hilow cylinder brace
Calibration: Retracting foot hydraulic cylinder
Calibration: Scale gravity constants/coefficients (NAWI Class IIII)
Calibration: Scale weight measurement
Calibration: Sleep Surface Siderail Controls
Calibration: Throttle zero output voltage
Calibration: Transformer installation and torque
Calibration: Transport Handle voltage adjustment
Calibration: Trapeze arm center lock verification
Calibration: Trapeze hose placement
Caster brake cannot be adjusted or casters do not swivel 360°
Communication failure with Graphical Caregiver Interface Control
Communication failure with SideCom Communication System Module
Continuous audible tone sounds; Remove footboard indicator on; Chair position indicator flashes
Controller LED DS 1 off
Controller LED DS1 off
Controller LED DS1 steady on
CPR function has contamination in orifice
CPR valve partially activated causing abnormal operation
CPR/Trendelenburg position does not activate
CPR/Trendelenburg position not achieved
Drive belt replacement required
EEPROM error
Emergency Trend function has contamination in orifice
Emergency Trendelenburg does not activate
Emergency Trendelenburg not activating
Enable (key) control malfunction
Enable key control indicator does not turn off
Enable key control indicator not illuminating
Entertainment/Lighting module not operating
Foot articulation cylinder drifts down after being raised
Foot articulation cylinder moves down
Foot articulation position sensor voltage out of range
Foot articulation times are slow
Foot hi-low moves up unintentionally
Foot hilow moves up unintentionally
Foot hilow position sensor voltage out of range
Foot lags head when raising with foot pump
Foot pump fails to raise function
Foot retraction cylinder moves out
Foot retraction position sensor voltage out of range
Foot retraction time is slow
Foot section will not articulate downward in isolation
FPGA configuration failure
Fracture Frame Adapter Brackets installation—P1940
GCI error codes 80-97, 80-98, or 80-145-008
Graphical Caregiver Interface control not functioning
Graphical Caregiver Interface not functioning
Head angle indicator misaligned or worn
Head cylinder moves up unintentionally
Head hi-low moves up unintentionally
Head hilow moves up unintentionally
Head hilow position sensor voltage out of range
Head lags foot when raising with foot pump
Head position sensor voltage out of range
Head section will not articulate downward in isolation
Head zone lower pressure than expected at 70° articulation
Heel Suspension mode does not activate or blower does not turn off
Heel Suspension mode not activating
Hilow cylinder brace installation
Hilow cylinder brace removal
Hilow lockout control indicator does not turn off
Hilow position sensor not responsive
Hydraulic hose integrity issue
Hydraulic leak cleanup in base tub
Hydraulic power unit replacement
Hydraulic power unit replacement and adjustment
Hydraulic valve replacement
Indicators (LED) do not come on
Infusion Support System installation—P155-12
Intermittent load beam shorted excitation voltage
Knee cylinder drifts down after being raised
Knee cylinder moves down
Knee cylinder moves up unintentionally
Knee hydraulic cylinder replacement
Knee lockout control not illuminating
Knee lockout indicator does not turn off
Knee position sensor voltage out of range
Knee section does not lower to flat position
Knee section does not move to maximum up position or drifts down
Knee section does not move to up position
Knee section moves despite lockout engaged
Load beam connector mismatch
Load beam shorted excitation voltage detected
Load beam shorted excitation voltage test 2: diagnostic A/D monitoring
Load beam shorted excitation voltage test 3: intermittent short detection
Lockout failure with EEPROM corrupted or uninitialized
Low Noise Blower Assembly replacement
Manifold Assembly removal and replacement
Mattress Assembly removal and replacement—P500 Model
Mattress Assembly—P500 International Model removal
Max-inflate control does not inflate foot section to high pressure
Max-inflate function not working properly
Motor controller removal and replacement
Network termination fault
Neuron EEPROM failure
Neuron self-test failure
Night Light lamp replacement
Night light not operational
Night Light photo sensor replacement
Normal mode does not activate
Nurse call controls not operational
Nurse call features not operational
Nurse Call/Patient Exit Detection board not operating
One section of bed lags when raising with foot pump
Oxygen Tank Holder installation and removal—P27601
PAG Board potentiometer R8 cannot adjust output voltage to spec
PAG board replacement required
PAG P.C. board voltage out of adjustment
Patient Air Surface Module with Foot Therapy—Switch/Stepper failures
Patient entertainment controls not operational
Patient entertainment features not operational
Patient light features not operational
PED weight too small
Physical Safety Belts installation and removal—P1926
Power Control Module PC Board replacement
PSS configuration failure
Pulmonary Base Module (PBM) replacement
Pulmonary mattress air valve module pressure out of tolerance
Removal: Cover—Head End
Replacement: Head Hydraulic Cylinder
Replacement: Hilow Head Hydraulic Cylinder
Replacement: Knee Hydraulic Cylinder
Replacement: Retracting Foot Hydraulic Cylinder
Retracting foot hydraulic cylinder replacement
Scale does not operate
Scale/GCI communication failure
Scale/GCI control communication error
Serial EEPROM confirm test failure
Serial EEPROM read failure
Serial EEPROM write failure
Service required indicator flashing
Service required or chair position indicator lights do not turn off
Short Stay Surface removal and replacement
SideCom Communication System and Nurse Call Module replacement
SideCom Communication System Universal Television (UTV) Module replacement
Siderail control cable removal and replacement
Siderail gasket installation
Siderails do not lock in up position
Solenoid update command to PIC failure
Standard IV Rod installation and removal—P2217
System power fails or components not powered
Transformer replacement needed
Transport handle cables improperly routed or secured
Transport handle replacement required
Treatment Foot Module (TFM) replacement
Treatment Foot Surface Control Module (TFSCM) and Treatment Surface Control Module (TSCM) replacement
Treatment Foot Surface Control Module (TFSCM) replacement
Treatment module error displayed
Treatment Surface Control Module (TSCM) replacement
Treatment surface removal and replacement
Treatment surface zones do not inflate properly
Treatment Torso Module (TTM) replacement
Trendelenburg/Reverse Trendelenburg malfunction
Trendelenburg/Reverse Trendelenburg position cannot be reached
Trendelenburg/Reverse Trendelenburg position not achievable
Universal Television (UTV) module not operating
Unplugged AC indicator does not activate
Unplugged AC indicator does not illuminate
Unplugged AC power indicator not functioning on both siderails
Verification report completion and conformity declaration
Visual inspection findings in IntelliDrive transport system
Weigh Frame Junction Electrical Box replacement
Zone data timeout
Zone leak detected
Zone pressure control failure during test
Zone pressure not reached
Zone state machine error

410 more symptoms with ranked causes and checks are in ServiceForge. Connect ServiceForge to your AI

Error codes

Code	Meaning	Trigger	Severity
`¤ ¤`	Thermal Cutback	Controller temperature exceeds safe limit or bed temperature outside 15-40°C range	warning
`¤ ¤¤`	Throttle Fault 1	Throttle input voltage outside expected range or inconsistent signal	error
`¤ ¤¤¤`	SPD Limit Pot Fault	Speed limit potentiometer signal invalid or not reading	error
`¤ ¤¤¤¤`	Low Battery Voltage	Battery voltage below minimum operating threshold	warning
`¤ ¤¤¤¤¤`	Overvoltage	Battery or supply voltage exceeds maximum safe level	warning
`¤¤ ¤`	Main OFF Fault	Main power switch or contactor fails to open circuit	error
`¤¤ ¤¤¤`	Main Cont FLTS	Main contactor/relay shows fault condition during operation	error
`¤¤ ¤¤¤¤`	Main ON Fault	Main power switch or contactor fails to close circuit	error
`¤¤¤ ¤`	PROC/Wiring Fault	Internal processor or main wiring path fault detected	critical
`¤¤¤ ¤¤¤¤`	Brake OFF Fault	Brake solenoid or circuit unable to release brake	critical
`¤¤¤ ¤¤¤¤¤`	HPD	Unknown HPD function fault condition	critical
`¤¤¤¤ ¤`	Current Sense Fault	Motor current measurement circuit fails or reads invalid	error
`¤¤¤¤ ¤¤`	HW Failsafe	Hardware failsafe circuit activated	critical
`¤¤¤¤ ¤¤¤¤`	Power Section Fault	Power stage or drive circuitry fault detected	critical
`1`	RS232 overflow warning	Serial communication buffer overflow	warning
`1`	Beam readings are not valid	Calibration process detects invalid readings from load beam strain gauge	error
`100`	ERR_Z2_NO_PRESS	Zone 2 not up to pressure during leak test	error
`100`	Zone 2 not up to pressure during leak test	Zone 2 pressure fails to reach setpoint during leak test	error
`101`	ERR_Z3_NO_PRESS	Zone 3 not up to pressure during leak test	error
`101`	Zone 3 not up to pressure during leak test	Zone 3 pressure fails to reach setpoint during leak test	error
`102`	Zone 1 pressure control failed during leak test	Zone 1 failed to maintain pressure during leak test	error
`102`	ERR_Z1_PRS_CTRL_FAIL	Zone 1 failed pressure control during leak test	error
`103`	Zone 2 pressure control failed during leak test	Zone 2 failed to maintain pressure during leak test	error
`103`	ERR_Z2_PRS_CTRL_FAIL	Zone 2 failed pressure control during leak test	error
`104`	Zone 3 pressure control failed during leak test	Zone 3 failed to maintain pressure during leak test	error
`104`	ERR_Z3_PRS_CTRL_FAIL	Zone 3 failed pressure control during leak test	error
`10 75`	Communication failure with patient pendant	Patient pendant unable to connect to bed system	error
`10 81`	+15V battery voltage failure	Battery supply voltage out of specification	critical
`10 82`	+8.5V battery voltage failure	Secondary battery supply voltage out of specification	critical
`10 83`	PCM node disabled—Diagnostic mode entered	Patient Care Monitor node detection failure	warning
`1-1-1`	Position sensor calibration mode	System enters calibration mode during initialization	info
`1-1-10`	Neuron EEPROM failure	Neuron processor cannot access or verify its EEPROM configuration memory	error
`1-1-11`	Lockout failure with EEPROM corrupted or uninitialized	Lockout control does not operate and EEPROM is corrupted or uninitialized	critical
`1-1-12`	Calibration recall failure	System cannot retrieve stored calibration values from EEPROM	warning
`1-1-13`	PSS configuration failure	Patient Support System configuration cannot be loaded or verified	warning
`112`	Zone 1 unable to reach pressure setpoint	Zone 1 pressure control failure during normal operation	error
`1-1-2`	Bed position sensors not calibrated	Sensors detected as uncalibrated or calibration lost on startup	warning
`112`	ERR_Z1_NO_CONTROL	Zone 1 not able to reach setpoint	error
`113`	Zone 2 unable to reach pressure setpoint	Zone 2 pressure control failure during normal operation	error
`113`	ERR_Z2_NO_CONTROL	Zone 2 not able to reach setpoint	error
`1-1-3`	Network termination fault	System detects missing or improper network termination during initialization	error
`1-1-4`	FPGA configuration failure	PCM FPGA firmware load failed at startup	error
`114`	ERR_Z3_NO_CONTROL	Zone 3 not able to reach setpoint	error
`114`	Zone 3 unable to reach pressure setpoint	Zone 3 pressure control failure during normal operation	error
`1141`	Communication failure RT_UCM	Right Upper Control Module communication lost	error
`1142`	Communication failure LT_UCM	Left Upper Control Module communication lost	error
`1143`	Communication failure GCI Control	Graphical Caregiver Interface communication lost	error
`1144`	Communication failure Scale Module	Weight measurement module communication lost	error
`1146`	Communication failure SideCom	SideCom Communication System Module communication lost	error
`1147`	Communication failure TFSCM	Transfer Service Communication Module communication lost	error
`1148`	Communication failure PIC (PIC QUERY)	Unable to query Programmable Interface Controller	error
`1149`	Communication failure PIC (UPDATE)	Unable to update Programmable Interface Controller	error
`115`	Zone 1 pressure out of tolerance for 15 seconds	Zone 1 pressure outside tolerance band for extended period	error
`115`	ERR_Z1_NO_CONTROL2	Zone 1 not in tolerance for 15 seconds	error
`1-1-5`	Solenoid update command to PIC failure	PCM unable to update solenoid valve controller firmware	error
`116`	Zone 2 pressure out of tolerance for 15 seconds	Zone 2 pressure outside tolerance band for extended period	error
`116`	ERR_Z2_NO_CONTROL2	Zone 2 not in tolerance for 15 seconds	error
`1-1-6`	Serial EEPROM write failure	System cannot write data to serial EEPROM memory during initialization	error
`1-1-7`	Serial EEPROM read failure	System cannot read configuration data from serial EEPROM during initialization	error
`117`	ERR_Z3_NO_CONTROL2	Zone 3 not in tolerance for 15 seconds	error
`117`	Zone 3 pressure out of tolerance for 15 seconds	Zone 3 pressure outside tolerance band for extended period	error
`118`	Zone 1 pressure exceeds safe limits	Zone 1 pressure outside safe operating limits	critical
`118`	ERR_Z1_NOT_SAFE	Zone 1 not in safe limits	critical
`1-1-8`	Serial EEPROM confirm test failure	EEPROM memory integrity verification test fails	error
`1-1-9`	Neuron self-test failure	Neuron communication processor self-diagnostic test fails	error
`119`	Zone 2 pressure exceeds safe limits	Zone 2 pressure outside safe operating limits	critical
`119`	ERR_Z2_NOT_SAFE	Zone 2 not in safe limits	critical
`120`	Zone 3 pressure exceeds safe limits	Zone 3 pressure outside safe operating limits	critical
`120`	ERR_Z3_NOT_SAFE	Zone 3 not in safe limits	critical
`121`	Mode/hazard timeout	Mode or hazard state timeout during operation	error
`1-2-1`	Head position sensor voltage out of range	Head sensor output voltage outside 0.5V to 4.5V DC range during operation	warning
`1-2-2`	Knee position sensor voltage out of range	Knee sensor output voltage outside 0.5V to 4.5V DC range	warning
`1-2-3`	Foot articulation position sensor voltage out of range	Foot articulation sensor output voltage outside 0.5V to 4.5V DC range	warning
`1-2-4`	Foot retraction position sensor voltage out of range	Foot retraction sensor output voltage outside 0.5V to 4.5V DC range	warning
`1-2-5`	Foot hilow position sensor voltage out of range	Foot height/low sensor output voltage outside 0.5V to 4.5V DC range	warning
`1-2-6`	Head hilow position sensor voltage out of range	Head height/low sensor output voltage outside 0.5V to 4.5V DC range	warning
`130`	EEPROM busy timeout	EEPROM remains busy beyond timeout period	error
`130`	ERR_EE_BUSY	EEPROM still busy after timeout	error
`131`	EEPROM bad address error	Invalid address accessed in EEPROM	error
`132`	EEPROM unknown error in initialization	EEPROM initialization fails with unknown error	error
`132`	ERR_EE_UNKNOWN	EEPROM error in init	error
`133`	EEPROM data verify failed	EEPROM data verification fails during access	error
`134`	EEPROM data error Sector 1	Data error detected in EEPROM Sector 1	error
`134`	ERR_EE_S1ERROR	EEPROM data error Sector 1	error
`135`	ERR_EE_S2ERROR	EEPROM data error Sector 2	error
`135`	EEPROM data error Sector 2	Data error detected in EEPROM Sector 2	error
`136`	EEPROM data error Sector 3	Data error detected in EEPROM Sector 3	error
`136`	ERR_EE_S3ERROR	EEPROM data error Sector 3	error
`137`	EEPROM data mismatch all sectors	Data mismatch detected across all EEPROM sectors	critical
`1-3-7`	Unintentional movement of head section	Head section moving without commanded actuation	warning
`137`	ERR_EE_S123MISMATCH	EEPROM data mismatch all sectors	error
`138`	EEPROM initialization failure	During system boot or EEPROM access	error
`139`	EEPROM test error 1	During EEPROM self-test	error
`140`	EEPROM test error 2	During EEPROM self-test	error
`1-4-1`	Communication failure with right UCM	Power control module cannot establish communication with right user control module	error
`141`	EEPROM test error 3	During EEPROM self-test	error
`1410`	Communication failure caregiver pendant	Caregiver pendant communication lost	warning
`1411`	Communication failure patient pendant	Patient pendant communication lost	warning
`142`	EEPROM test pass count error	During EEPROM self-test	error
`1-4-2`	Communication failure with left UCM	Power control module cannot establish communication with left user control module	error
`142`	ERR_EE_TEST4	EEPROM test error 4	error
`1-4-3`	Communication failure with GCI Control	Power control module cannot communicate with Graphical Caregiver Interface Control	error
`1-4-4`	Communication failure with Scale Module	Power control module cannot communicate with weigh scale module	error
`144`	Safe state error code	System enters safe state unexpectedly	error
`145`	ERR_BAD_ROM_CHKSUM	ROM checksum failed	error
`1-4-6`	Communication failure with SideCom Communication System Module	Power control module cannot communicate with SideCom module	error
`1-4-7`	Communication failure with TFSCM	Power control module cannot communicate with Treatment Foot Surface Control Module	error
`1-4-8`	Communication failure with PIC (PIC QUERY)	Power control module cannot query PIC microcontroller during diagnostics	error
`1-4-9`	Communication failure with PIC (UPDATE)	Power control module cannot send update or parameter command to PIC	error
`151`	+15V battery voltage failure	Main 15V battery supply out of specification	critical
`152`	+8.5V battery voltage failure	Secondary 8.5V battery supply out of specification	critical
`153`	PCM node disabled	Primary Control Module disabled, diagnostic mode active	warning
`16.2.1 (G0 33)`	U1 High row selection logic failure	Pendant control logic detects failure in high row selection circuit	error
`16.2.2 (G0 34)`	U1 Low row selection logic failure	Pendant control logic detects failure in low row selection circuit	error
`16.2.3 (G0 35)`	U2 High row selection logic failure	Pendant control logic detects failure in high row selection circuit	error
`16.2.4 (G0 36)`	U2 Low row selection logic failure	Pendant control logic detects failure in low row selection circuit	error
`16.3.1 (G0 49)`	Column shorted high or low	Pendant detects shorted column in control circuit	error
`16.4.1 (G0 65)`	Loss of communication from UCM to PCM	Communication failure between User Control Module and Pendant Control Module	error
`16.7.1 (G0 113)`	Column shorted high, low, or together on power up	Pendant detects shorted column during power-up sequence	error
`16.9.1 (G0 145)`	Nurse Call relay logic failure	Pendant relay logic circuit detects failure	error
`17`	SPI overflow warning	SPI communication buffer overflow	warning
`18`	SPI bad beginning of frame	Invalid frame start detected in SPI data	warning
`19`	SPI bad CRC	Checksum mismatch in SPI frame	warning
`1 (Calibration Error)`	Beam readings are not valid	During scale calibration when load beam response is invalid	error
`2`	Zero readings are not valid	Calibration zero reference reading outside acceptable range	error
`2`	RS232 bad beginning of frame	Invalid frame start detected in serial data	warning
`20`	SPI timeout	No SPI response received within timeout period	warning
`20`	Matrix calculation error	Calibration algorithm detects inconsistency in four-point weight distribution matrix calculation	error
`2032`	Replace right caregiver P.C. board		error
`20 33`	Right caregiver control board failure	Right control panel malfunction or communication loss	critical
`2034`	Replace right caregiver P.C. board		error
`2041`	Loss of communication with PCM—Check cabling. If problem persists, replace right caregiver P.C. board		error
`20 65`	Loss of communication with PCM (right controller)	Right control board unable to communicate with patient care monitor	error
`2071`	Replace right caregiver P.C. board		error
`2072`	Replace right caregiver P.C. board		error
`20 (Calibration Error)`	Matrix calculation error	During calibration coefficient calculation phase	error
`21`	Coefficient range error	Calibration detects calculated coefficient outside valid operating range	error
`21`	SPI bad module ID	Invalid module ID received in SPI frame	warning
`21 (Calibration Error)`	Coefficient range error	During calibration when calculated coefficients are outside valid range	error
`2-2-1`	Replace right caregiver P.C. board	Right caregiver siderail module failure	error
`2-2-2`	Replace right caregiver P.C. board	Right caregiver siderail module failure	error
`24V Sense`	24V power supply monitoring error or out-of-range condition	Measured 24V supply voltage is outside acceptable operating range	warning
`2 (Calibration Error)`	Zero readings not valid	During scale calibration zero offset check	error
`3`	RS232 bad CRC	Checksum mismatch in serial frame	warning
`3021`	Replace left caregiver P.C. board		error
`3022`	Replace left caregiver P.C. board		error
`3023`	Replace left caregiver P.C. board		error
`3024`	Replace left caregiver P.C. board		error
`3031`	Replace left caregiver P.C. board		error
`30 33`	Left caregiver control board failure	Left control panel malfunction or communication loss	critical
`3041`	Loss of communication with PCM—Check cabling. If problem persists, replace left caregiver P.C. board		error
`30 65`	Loss of communication with PCM (left controller)	Left control board unable to communicate with patient care monitor	error
`3071`	Replace left caregiver P.C. board		error
`3072`	Replace left caregiver P.C. board		error
`32`	5V supply low warning	5V supply voltage below threshold	warning
`33`	5V supply high warning	5V supply voltage above threshold	warning
`34`	15V supply low warning	15V supply voltage below threshold	warning
`35`	15V supply high warning	15V supply voltage above threshold	warning
`4`	RS232 timeout	No response received within timeout period	warning
`4`	Maximum reading for weight on right foot is incorrect	Calibration detects right foot zone reading outside expected range with calibration weight applied	error
`42-21`	Value range/reset warning	Value range or reset condition detected	info
`42-22`	Value range/reset warning	Value range or reset condition detected	info
`42-23`	Value range/reset warning	Value range or reset condition detected	info
`42-24`	Value range/reset warning	Value range or reset condition detected	info
`42-25`	Value range/reset warning	Value range or reset condition detected	info
`42-26`	Value range/reset warning	Value range or reset condition detected	info
`42-27`	Value range/reset warning	Value range or reset condition detected	info
`42-28`	Value range/reset warning	Value range or reset condition detected	info
`42-29`	Value range/reset warning	Value range or reset condition detected	info
`42-30`	Value range/reset warning	Value range or reset condition detected	info
`48`	Timers not running	System timers fail to start or continue	error
`49`	Test 1 error code	Reserved test 1 failure	error
`4 (Calibration Error)`	Max reading for weight on right foot incorrect	During calibration when weight applied to right foot position	error
`5`	RS232 bad module ID	Invalid module ID received in serial frame	warning
`5`	Maximum reading for weight on left foot is incorrect	Calibration detects left foot zone reading outside expected range with calibration weight applied	error
`50`	Test 2 error code	Reserved test 2 failure	error
`5011`	Improper starting address for page size—Invalid operation. Replace the board if error is repeatable		error
`50115`	SAVE_ALARM write time-out	Invalid operation condition that should not occur on working board	error
`50116`	GET_ALARM confirm failed	Invalid operation condition	error
`50117`	GET_ALARM read time-out	Invalid operation condition	error
`50118`	Unrecognized command passed	Invalid operation	error
`50119`	EEPROM error, offset	Invalid operation	error
`5012`	Address out of range—Invalid operation. Replace the board if error is repeatable		error
`50120`	EEPROM error, zero	Invalid operation	error
`50121`	EEPROM error, coefficient	Invalid operation	error
`50122`	Range for zero or coefficient is not valid	Calibration data out of valid range	error
`50123`	Could not save weight, EEPROM	Invalid operation	error
`50124`	Could not save coefficients to EEPROM	Invalid operation	error
`50125`	Could not save calibration data/beam readings to EEPROM	Invalid operation	error
`50126`	WEIGH_ZERO_CMD error saving offset, EEPROM	Invalid operation during zero command	error
`50127`	WEIGH_ZERO_CMD could not save zero to EEPROM	Invalid operation during zero command	error
`50129`	Could not get zero from EEPROM	Invalid operation	error
`5013`	EEPROM busy too long—Invalid operation. Replace the board if error is repeatable		error
`50130`	Could not get coefficients from EEPROM	Invalid operation	error
`50-132`	Could not save serial number to EEPROM	Invalid operation or EEPROM write failure	error
`50-133`	Could not write to EEPROM	Invalid write operation	error
`50-134`	Could not read from EEPROM	Invalid read operation	error
`50-135`	Could not write to EEPROM during new board test	EEPROM write failure on new board initialization	error
`50-136`	Could not read from EEPROM	Invalid read operation	error
`50137`	A/D power up reset error	Invalid operation during power up	error
`50-138`	Could not read serial number from EEPROM	EEPROM read failure during serial number retrieval	error
`50139`	Error getting A/D readings	Invalid operation	error
`5014`	EEPROM address not valid—Invalid operation. Replace the board if error is repeatable		error
`50-141`	Error saving PED data to EEPROM	EEPROM write failure during patient/equipment data save	error
`50142`	EEPROM write error, could not update coefficients	Invalid operation	error
`50-143`	Calculated weight too large, exceeds 327.67 kg	Weight calculation exceeds maximum threshold	error
`50-145`	Weight—RF, invalid range RF during calibration	Right foot calibration weight applied but RF beam reading invalid	error
`50-146`	Weight—RF, invalid range LF during calibration	Right foot calibration weight applied but LF beam reading invalid	error
`50-147`	Weight—RF, invalid range LH during calibration	Right foot calibration weight applied but LH beam reading invalid	error
`50-148`	Weight—RF, invalid range RH during calibration	Right foot calibration weight applied but RH beam reading invalid	error
`50-149`	Weight—LF, invalid range RF during calibration	Left foot calibration weight applied but RF beam reading invalid	error
`5015`	Neuron reset—Shows the neuron went through reset. Normal on power up		info
`50-150`	Weight—LF, invalid range LF during calibration	Left foot calibration weight applied but LF beam reading invalid	error
`50-151`	Weight—LF, invalid range LH during calibration	Left foot calibration weight applied but LH beam reading invalid	error
`50-152`	Weight—LF, invalid range RH during calibration	Left foot calibration weight applied but RH beam reading invalid	error
`50-153`	Weight—LH, invalid range RF during calibration	Left head calibration weight applied but RF beam reading invalid	error
`50-154`	Weight—LH, invalid range LF during calibration	Left head calibration weight applied but LF beam reading invalid	error
`50-155`	Weight—LH, invalid range LH during calibration	Left head calibration weight applied but LH beam reading invalid	error
`50-156`	Weight—LH, invalid range RH during calibration	Left head calibration weight applied but RH beam reading invalid	error
`50-157`	Weight—RH, invalid range RF during calibration	Right head calibration weight applied but RF beam reading invalid	error
`50-158`	Weight—RH, invalid range LF during calibration	Right head calibration weight applied but LF beam reading invalid	error
`50-159`	Weight—RH, invalid range LH during calibration	Right head calibration weight applied but LH beam reading invalid	error
`5016`	Software generated reset—Software caused neuron reset. Possible ESD event or A/D converter issue		warning
`50-161`	Weight—RH, invalid range RH during calibration	Right head calibration weight applied but RH beam reading invalid	error
`50163`	Cal zero RF not valid	Zero value for right foot beam invalid	error
`50164`	Cal zero LF not valid	Zero value for left foot beam invalid	error
`50165`	Cal zero LH not valid	Zero value for left head beam invalid	error
`50166`	Cal zero RH not valid	Zero value for right head beam invalid	error
`50167`	Right foot max in wrong place	Calibration weight over right foot did not produce maximum beam reading	error
`50168`	Left foot max in wrong place	Calibration weight over left foot did not produce maximum beam reading	error
`50169`	Left head max in wrong place	Calibration weight over left head did not produce maximum beam reading	error
`50 17`	Incorrect starting address for page size	Invalid memory address detected during scale initialization	critical
`5017`	A/D time-out—Invalid operation. Remove power and reset scale. Replace board if error repeats		error
`50170`	Right head max in wrong place	Calibration weight over right head did not produce maximum beam reading	error
`50171`	Error saving calibration zero data	Invalid operation during calibration save	error
`50172`	Error confirming calibration zero data	Invalid operation during calibration confirmation	error
`50173`	Error getting calibration zero data	Invalid operation reading calibration data	error
`50174`	WEIGH_SETWEIGHT_CMD error saving offset, EEPROM	Invalid operation during weight command execution	error
`50175`	FP error calculating coefficients	Coefficients cannot be calculated during calibration	error
`50 18`	Address out of range	Memory address exceeds valid range during operation	critical
`5018`	Could not read serial EEPROM—Invalid operation. Replace board if error repeats		error
`50 19`	EEPROM busy too long	EEPROM access timeout during read/write operation	critical
`5019`	EEPROM busy too long—Invalid operation. Remove power and reset scale. Replace board if error repeats		error
`5020`	Number of bytes to read out of range—Invalid operation. Replace board if error repeats		error
`50 20`	EEPROM address not valid	Invalid EEPROM address referenced during operation	critical
`5021`	Number of bytes to read out of range—Invalid operation. Replace board if error repeats		error
`50 21`	Neuron reset	Embedded processor reset detected	info
`5022`	EEPROM busy too long—Invalid operation. Replace board if error repeats		error
`50 22`	Software generated reset	Processor reset initiated by software	warning
`5023`	PED check sums do not match—Invalid operation. Replace board if error repeats		error
`50 23`	A/D time-out	Analog-to-digital converter does not respond within timeout period	error
`50 24`	Could not read serial EEPROM	EEPROM read operation fails	critical
`5024`	Error getting beam readings—Look at additional error codes in GCI or Service Required field		error
`50 25`	EEPROM busy too long	EEPROM access timeout during operation	critical
`5025`	Invalid diagnostic command—A diagnostic command that scale does not support was sent		error
`50 26`	Number of bytes to read out of range	Read operation requests invalid byte count	critical
`50 27`	Number of bytes to read out of range	Read operation requests invalid byte count	critical
`50 28`	EEPROM busy too long	EEPROM access timeout	critical
`50 29`	PED check sums do not match	Patient Elevation Detection data integrity check fails	error
`50 30`	Error getting beam readings	Scale unable to read load cell signals	error
`50 31`	Invalid diagnostic command	Unsupported diagnostic command received by scale	warning
`5033`	Invalid range for A/D reading—Too much weight, beam failure, board failure, or no weight on beams		error
`50 33`	Invalid range for A/D reading	Analog-to-digital converter produces out-of-range value	error
`50 34`	Non-valid diagnostic command	Scale receives unrecognized diagnostic command	warning
`50 35`	Floating point error, weight calc range error	Weight calculation cannot be completed or exceeds range	error
`50 36`	Constructor returned error, invalid ranges	Scale object instantiation fails due to out-of-range values	error
`50 38`	General calibration error, beam readings, zero readings, max values	Scale calibration fails during calibration procedure	error
`50 39`	Try to get PED readings, A/D error returned	Patient Elevation Detection cannot read scale A/D values	error
`50 40`	Tried to get A/D readings	Analog-to-digital converter does not respond within timeout	error
`5040`	Tried to get A/D readings—A/D timed out. Check readings, apply weight to verify sensor change		error
`50 41`	Initial PED weight error	Patient Elevation Detection cannot initialize with insufficient weight	warning
`5041`	Initial PED weight error—Minimum weight on bed required. Bed may need zeroing or board/beam/frame problem		error
`50 42`	Alarm generated too many errors detected	Multiple errors detected during Patient Elevation Detection monitoring	error
`50 43`	PED weight too small	Scale weight measurement below PED enablement threshold	warning
`5043`	PED weight too small—PED not enabled, weight less than 50 lb. Do weigh function and zero bed		warning
`50 45`	PED_construct error reading set weigh offset, EEPROM error	Patient Elevation Detection offset parameter reading fails	error
`5051`	SAVE_PED error writing—Invalid operation. Replace board if error repeats		error
`50 51`	SAVE_PED error writing	Patient Elevation Detection parameter write to storage fails	error
`50 52`	Save_coefficient_values	Calibration coefficient storage fails	error
`5052`	Save_coefficient_values error—Invalid operation. Replace board if error repeats		error
`5053`	Save_zero_values error—Invalid operation. Replace board if error repeats		error
`50 53`	Save_zero_values	Zero calibration value storage fails	error
`50 54`	Save_beam_rdgs	Beam reading data storage fails	error
`5054`	Save_beam_rdgs error—Invalid operation. Replace board if error repeats		error
`5055`	Save_offset_adj error—Invalid operation. Replace board if error repeats		error
`50 55`	Save_offset_adj	Scale offset adjustment storage fails	error
`5056`	Save_offset_adj error—Invalid operation. Replace board if error repeats		error
`50 56`	Save_offset_adj	Scale offset adjustment storage fails	error
`50 57`	GET_ZERO_VALUES could not confirm	Zero calibration values do not match across storage locations	error
`5057`	GET_ZERO_VALUES could not confirm—Zero readings inconsistent. Zero bed and run self-test. Replace board if persists		error
`50 58`	GET_ZERO_VALUES could not read	Zero calibration values cannot be retrieved from storage	error
`5059`	GET_PED_VALUES could not confirm—PED parameters inconsistent. Run self-test. Replace board if persists		error
`50 59`	GET_PED_VALUES could not confirm	Patient Elevation Detection parameters do not match across storage	error
`50 60`	GET_PED_VALUES could not read	Patient Elevation Detection parameters cannot be retrieved	error
`5061`	Coefficient could not confirm—Values inconsistent across EEPROM. Run self-test. Recalibrate or replace board if persists		error
`5061`	Coefficient could not read	Unable to read coefficient value from EEPROM	error
`50 62`	Coefficient could not read	Calibration coefficients cannot be retrieved from storage	error
`5062`	Coefficient could not read—Run self-test. Verify calibration coefficients. Replace board if problem persists		error
`5063`	GET_OFFSET_ADJ_VALUES could not confirm—Offset value inconsistent. Run self-test. Zero scale or replace board if persists		error
`50 63`	GET_OFFSET_ADJ_VALUES could not confirm	Offset adjustment values do not match across storage locations	error
`50 65`	GET_OFFSET_ADJ_VALUES could not confirm last weight	Last recorded weight value does not match across storage locations	error
`50 66`	GET_OFFSET_ADJ_VALUES could not confirm	Offset adjustment values do not match across storage locations	error
`5066`	GET_OFFSET_ADJ_VALUES could not confirm—Offset value inconsistent. Run self-test. Zero scale or replace board if persists		error
`50 67`	GET_OFFSET_ADJ_VALUES could not read last weight	Last recorded patient weight cannot be retrieved from storage	warning
`50 68`	GET_BEAM_RDGS could not confirm	Beam reading calibration values do not match across storage	warning
`5068`	GET_BEAM_RDGS could not confirm—Calibration readings inconsistent. Run self-test. Check coefficients with diagnostics		warning
`5069`	GET_BEAM_RDGS could not read—Could not read calibration beam readings. Run board self-test from diagnostics		error
`50 69`	GET_BEAM_RDGS could not read	Calibration beam readings cannot be retrieved from storage	error
`5070`	EEPROM_WRITE_BYTE could not write—Could not write value to EEPROM. Run board self test from diagnostics		error
`50 70`	EEPROM_WRITE_BYTE could not write	EEPROM single byte write operation fails	error
`5071`	EEPROM_READ_BYTE could not read—Could not read EEPROM value. Run board self-test from diagnostics		error
`5071`	EEPROM read byte failed	Could not read EEPROM value during operation	error
`5072`	EEPROM_TEST error saving	EEPROM failure during test save operation	critical
`5073`	EEPROM_TEST error confirming	EEPROM failure during test confirmation	critical
`5074`	EEPROM_TEST write/read compare failed	Write/read comparison test failed	critical
`5075`	Coefficients not in valid range after calculation	Calibration coefficients calculated but out of valid range	error
`5076`	WEIGH_ZERO_CMD no zero with PED on	Bed cannot be zeroed when PED is enabled	warning
`5077`	Error taking weight PED_STATE_INITIAL_NO_WEIGHT	Weight measurement failed in initial PED state without weight	error
`5078`	EEPROM_TEST read error	EEPROM test read operation failed	critical
`5079`	Valid coefficient channel 0 not in range	Weight calibration or beam reading validation	error
`5081`	VALID_COEFFICIENT ch1 not in range	Left foot channel coefficient outside valid range	error
`5082`	VALID_COEFFICIENT ch2 not in range	Left head channel coefficient outside valid range	error
`5083`	VALID_COEFFICIENT ch3 not in range	Right head channel coefficient outside valid range	error
`5084`	Zero channel 0 (right foot) not in valid range	Scale zeroing or weight baseline check	warning
`5085`	Zero channel 1 (left foot) not in valid range	Scale zeroing or weight baseline check	warning
`5086`	Zero channel 2 (left head) not in valid range	Scale zeroing or weight baseline check	warning
`5087`	Zero channel 3 (right head) not in valid range	Scale zeroing or weight baseline check	warning
`5088`	A/D beam readings channel 0 (right foot) out of range	Analog-to-digital converter reading outside valid range for right foot load cell	error
`5089`	A/D beam readings channel 1 (left foot) out of range	Analog-to-digital converter reading outside valid range for left foot load cell	error
`5090`	A/D beam readings channel 2 (left head) out of range	Analog-to-digital converter reading outside valid range for left head load cell	error
`5091`	A/D beam readings channel 3 (right head) out of range	Analog-to-digital converter reading outside valid range for right head load cell	error
`5092`	PED A/D beam readings channel 0 (right foot) out of range	Patient Exit Detection A/D readings for right foot outside valid range	error
`5093`	PED A/D beam readings channel 1 (left foot) out of range	Patient Exit Detection A/D readings for left foot outside valid range	error
`5094`	PED A/D beam readings channel 2 (left head) out of range	Patient Exit Detection A/D readings for left head outside valid range	error
`5095`	PED A/D beam readings channel 3 (right head) out of range	Patient Exit Detection A/D readings for right head outside valid range	error
`5097`	EEPROM write error	Write operation to EEPROM failed	critical
`5097`	Error writing to EEPROM	EEPROM write operation	critical
`5098`	SAVE_PED_DELAY writing to EEPROM error	PED save operation	error
`5099`	Could not save PED state bits to EEPROM	PED state save operation	error
`51`	Test 3 error code	Reserved test 3 failure	error
`5100`	Could not save PED initial weight to EEPROM	PED weight initialization	error
`5101`	PED monitor could not start; maximum PED errors reached	Too many PED monitor initialization failures	critical
`5102`	Could not load beam readings or zero from calibration data	Failed to retrieve beam readings or zero offsets from EEPROM during startup	critical
`5103`	PED enabled but PCM (Patient Care Monitor) not detected	PED enabled without detecting Patient Care Monitor communication	error
`5105`	Time-out response from PCM (Patient Care Monitor)	No timely response from Patient Care Monitor during communication	warning
`5106`	Time-out response from SCM (System Control Module)	No timely response from System Control Module during communication	warning
`5107`	SAVE_SERIAL_NUMBER error writing to EEPROM	Serial number write operation	critical
`5108`	GET_SERIAL_NUMBER confirm failed	Serial number read verification	critical
`5109`	GET_SERIAL_NUMBER read time-out	Serial number read operation	critical
`51:101`	Invalid state passed to PED state machine	Memory corruption	error
`51/101 - Invalid state in PED state machine`	Patient Entry Detection state machine reached undefined state	State variable has invalid value	error
`51:107`	A/D sampling timeout response	A/D converter not responding within time limit (automatic reset triggered)	error
`51:107`	Timeout - A/D not sampling, automatic reset triggered	A/D sampling timeout	error
`51/107 - Timeout A/D not sampling`	Weight sensor A/D conversion timeout	A/D converter does not complete measurement within timeout	error
`5111`	SAVE_ERRORS EEPROM time-out	Error log write operation	critical
`51:118`	Gravity constant value outside valid range	Gravity constant value entered outside 9.59999 to 9.999999 range	warning
`51/118 - Gravity constant out of range`	Gravity acceleration value outside valid range	Gravity constant not between 9.59999 and 9.999999	error
`51:119`	Zero point A/D data out of range	A/D reading at zero point exceeds valid range	error
`51/119 - A/D data out of range during zero point save`	Sensor reading outside range while saving zero offset	Weight sensor A/D reading invalid during zero calibration	error
`51:120`	Error saving zero point data to EPROM	EPROM write failure	error
`51/120 - Error saving zero point data to EPROM`	EPROM write failure during zero calibration	EPROM device fails to store zero offset value	error
`5113`	GET_ERROR confirm failed	Error log read verification	critical
`5114`	GET_ERROR read time-out	Error log read operation	critical
`51:140`	Tare value out of valid range	Attempted to tare bed with weight outside specified limits	warning
`51/140 - Tare value out of range`	Bed tare weight outside allowable limits	Tare or preset values exceed specification limits	error
`51:143`	Error saving undo tare - value out of range	UNDO TARE save operation failed with out-of-range value	error
`51/143 - Undo tare out of range`	Undo tare variable corruption or out of range	Undo tare value invalid or out of bounds	error
`5115`	SAVE_ALARM write time-out	Alarm event save operation	critical
`5116`	GET_ALARM confirm failed	Alarm event read verification	critical
`5117`	GET_ALARM read time-out	Alarm event read operation	critical
`51:171`	Right foot weight exceeds maximum load limit	A/D reading from right foot load cell exceeds maximum safe weight	error
`51/171 - Right foot beam weight exceeds maximum`	Patient weight centered on right foot exceeds load limit	Right foot beam A/D reading exceeds maximum specification	error
`51:172`	Left foot weight exceeds maximum load limit	A/D reading from left foot load cell exceeds maximum safe weight	error
`51/172 - Left foot beam weight exceeds maximum`	Patient weight centered on left foot exceeds load limit	Left foot beam A/D reading exceeds maximum specification	error
`51-173`	Left head beam weight exceeds maximum load limit	Weight reading on left head of bed exceeds system limit	error
`51:173`	Left head beam over max load limit	Excessive weight on left head section	critical
`51-174`	Right head beam weight exceeds maximum load limit	Weight reading on right head of bed exceeds system limit	error
`51:174`	Right head beam over max load limit	Excessive weight on right head section	critical
`51:177`	Error saving coefficients to EPROM	EPROM write failure	error
`51-177`	Error saving coefficients to EPROM	Failure during coefficient save operation	error
`51:178`	Error reading coefficients from EPROM	EPROM read failure	error
`51-178`	Error reading coefficients from EPROM	Failure during coefficient read operation	error
`51-179`	Error saving gravity constants to EPROM	Failure during gravity constant save operation	error
`51:179`	Error saving gravity constants to EPROM	EPROM write failure	error
`5118`	Unrecognized command passed to board	Invalid command received by board	critical
`51-180`	Error reading gravity constants from EPROM	Failure during gravity constant read operation	error
`51:180`	Error reading gravity constants from EPROM	EPROM read failure	error
`51-181`	Error saving undo tare to EPROM	Failure during undo tare save operation	error
`51:181`	Error saving undo tare to EPROM	EPROM write failure	error
`51-182`	Error reading undo tare from EPROM	Failure during undo tare read operation	error
`51:182`	Error reading undo tare from EPROM	EPROM read failure	error
`51:183`	Error saving tare to EPROM	EPROM write failure	error
`51-183`	EPROM failure or memory corruption - tare save error	Scale unable to save tare to EPROM	error
`51-183`	Error saving tare to EPROM	Failure during tare value save operation	error
`51-184`	EPROM failure or memory corruption - tare read error	Scale unable to read tare from EPROM	error
`51-184`	Error reading tare from EPROM	Failure during tare value read operation	error
`51:184`	Error reading tare from EPROM	EPROM read failure	error
`51:185`	Error saving pulm module weight to EPROM	EPROM write failure	error
`51-185`	Error saving pulmonary module weight to EPROM	Failure during pulmonary module weight save operation	error
`51:186`	Error saving bed exit to EPROM	EPROM write failure	error
`51-186`	Error saving bed exit data to EPROM	Failure during bed exit data save operation	error
`51:187`	Error saving/clear error log to EPROM	EPROM write failure	error
`51-187`	Error saving or clearing error log to EPROM	Failure during error log save or clear operation	error
`51:188`	Error getting coefficients from EPROM	EPROM read failure	error
`51-188`	Error retrieving coefficients from EPROM	Failure during coefficient retrieval operation	error
`51-189`	Error retrieving zero point from EPROM	Failure during zero point retrieval operation	error
`51:189`	Error getting zero point from EPROM	EPROM read failure	error
`5119`	EEPROM error at offset	EEPROM access operation	critical
`51-190`	Error saving zero point to EPROM	Failure during zero point save operation	error
`51:190`	Error saving zero point to EPROM	EPROM write failure	error
`51-191`	Error reading zero point from EPROM	Failure during zero point read operation	error
`51:191`	Error reading zero point from EPROM	EPROM read failure	error
`51-193`	Calculated weight is outside valid range	Weight calculation result exceeds system limits	error
`51:193`	Calculated weight out of range	Weight calculation exceeds limits	warning
`51:195`	Error saving zero point - out of range or EPROM write failure	Zero point outside valid range	error
`51-195`	EPROM failure or write error - zero point out of range	Zero point outside valid range or EPROM write failure	error
`51-195`	Error saving zero point with invalid range or EPROM write failure	Zero point value outside valid range or EPROM write failure	error
`51-196`	Error reading zero point from EPROM	Failure during zero point read from EPROM	error
`51:196`	Error reading zero point from EPROM	EPROM read failure	error
`51-197`	EPROM failure - undo tare save error	Scale unable to save undo tare to EPROM	error
`51:197`	Error saving undo tare to EPROM	EPROM write failure	error
`51-197`	Error saving undo tare due to EPROM failure	Failure during undo tare save operation	error
`51-198`	Error saving tare weight due to EPROM failure	Failure during tare weight save operation	error
`51:198`	Error saving tare weight to EPROM	EPROM write failure	error
`51-199`	Error retrieving tare weight from EPROM	Failure during tare weight retrieval operation	error
`51:199`	Error getting tare weight from EPROM	EPROM read or RAM failure	error
`5120`	EEPROM error at zero address	EEPROM zero value access	critical
`51-202`	Error retrieving tare from EPROM	Failure during tare retrieval operation	error
`51:202`	Error getting tare from EPROM	EPROM read or RAM failure	error
`51-202`	EPROM failure or RAM corruption - tare retrieval error	Scale unable to retrieve tare from memory	error
`51-203`	Error saving gravity constants due to EPROM failure	Failure during gravity constant save operation	error
`51:203`	Process gravity constant error saving	EPROM write failure	error
`51:204`	Process gravity constant error getting	EPROM or RAM failure	error
`51-204`	Error retrieving gravity constants from EPROM	Failure during gravity constant retrieval operation	error
`51-205`	Checksum mismatch in RAM variables	RAM variable checksum verification fails	error
`51:205`	Check-sum mismatch in RAM variables	RAM integrity failure	error
`51-206`	Gravity constant value outside valid range	Gravity constant not between specified limits	error
`51:206`	Gravity constant out of range	Invalid gravity value	warning
`51:207`	ACR A/D register mismatch	A/D converter settings mismatch	error
`51-207`	ACR A/D converter register mismatch	Critical A/D converter register values differ from expected settings	error
`51-209`	SETUP A/D converter register mismatch	Critical A/D converter register values differ from expected settings	error
`5121`	EEPROM error at coefficient address	EEPROM calibration data access	critical
`5122`	Zero or coefficient range not valid	Calculated or stored zero/coefficient value outside valid range	error
`5123`	Could not save weight to EEPROM	Weight data write operation	critical
`5124`	Could not save coefficients to EEPROM	Calibration coefficient write operation	critical
`5125`	Could not save calibration data/beam readings to EEPROM	Calibration data write operation	critical
`5126`	WEIGH_ZERO_CMD error saving offset to EEPROM	Zero calibration write operation	critical
`5127`	Weigh zero EEPROM save error	Failed to save zero calibration to EEPROM	critical
`5127`	WEIGH_ZERO_CMD could not save zero to EEPROM	Zero calibration write operation	critical
`5129`	Could not get zero from EEPROM	Zero calibration read operation	critical
`5130`	Could not get coefficients from EEPROM	Calibration coefficient read operation	critical
`5132`	Could not save serial number to EEPROM	Serial number write operation	critical
`5133`	Could not write to EEPROM	EEPROM write operation	critical
`51:33`	Invalid value passed to function - corrupted RAM variable	System attempted to read A/D value for non-existent beam	error
`51/33 - Invalid A/D value for nonexistent beam`	Attempted to read A/D value for undefined beam	RAM variable corruption or invalid beam index	error
`5134`	Could not read from EEPROM	EEPROM read operation	critical
`51:35`	A/D value out of range	Weight sensor reading outside valid range or open beam detected	error
`5135`	Could not write to EEPROM in new board test	Initial board test/programming	critical
`51/35 - A/D value out of range`	Scale beam weight reading out of valid range	Weight sensor reading exceeds limits or beam failure	error
`51:36`	Hit negative limit for total weight	Weight drops below minimum	error
`5136`	Could not read from EEPROM in new board test	Initial board test/programming	critical
`51:36`	Negative weight limit exceeded	Total weight reading below zero during operation	error
`51/36 - Negative total weight limit hit`	Scale calculated negative total weight	Beam weight calculation results in negative value	error
`51:37`	Maximum weight limit exceeded (>204 kg)	Total bed weight exceeds 204 kg or scale was not zeroed or open beam	error
`5137`	A/D power up reset error	Board power initialization	critical
`51:37`	Hit max limit for total weight	Weight exceeds 204 kg or scale zeroing failure	error
`51/37 - Maximum total weight limit exceeded`	Total patient weight exceeds scale capacity of 204 kg	Sum of beam weights exceeds 204 kg or beam open circuit	error
`5138`	Could not read serial number from EEPROM	Serial number read operation	critical
`5139`	Error getting A/D readings	A/D converter access	critical
`5141`	Error saving PED data to EEPROM	PED data write operation	critical
`5142`	EEPROM write error; could not update coefficients	Calibration coefficient write to EEPROM	critical
`5143`	Calculated weight exceeds maximum; greater than 327.67 kg	Weight calculation during normal operation or calibration	warning
`51:44`	Default case executed in state machine - memory corruption	Invalid state detected during case statement execution	error
`51/44 - Default case in switch statement`	Unexpected code path executed indicating memory corruption	Program execution reaches default case unexpectedly	error
`5145`	Calibration weight RF; RF beam reading invalid	During weight calibration with weight on right foot	error
`51:45`	Calibration mode not enabled	Zero calibration command attempted without enabling calibration mode	warning
`51/45 - Calibration switch not enabled`	Zero calibration attempted without calibration mode enabled	Calibration command issued when mode not activated	error
`5146`	Calibration weight RF; LF beam reading invalid	During weight calibration with weight on right foot	error
`51:46`	Error writing to EPROM - pulmonary module weight	EPROM write failure	error
`51/46 - EPROM write error saving pulmonary module weight`	EPROM write failed during weight storage operation	EPROM device fails to store pulmonary module weight value	error
`51:47`	Pulmonary module weight confirmation failed	Stored pulmonary weight value not consistent in EEPROM redundant locations	error
`5147`	Calibration weight RF; LH beam reading invalid	During weight calibration with weight on right foot	error
`51/47 - Pulmonary module weight verify failed`	Stored weight value does not verify consistently	Weight read from EPROM in third location differs from others	error
`5148`	Calibration weight RF; RH beam reading invalid	During weight calibration with weight on right foot	error
`5149`	Calibration weight LF; RF beam reading invalid	During weight calibration with weight on left foot	error
`51:49`	Pulmonary module weight read timeout - EEPROM read failure	EEPROM read operation exceeded time limit when retrieving weight data	error
`51/49 - EPROM read timeout`	EPROM read operation timeout during weight retrieval	EEPROM device timeout reading weight data	error
`5150`	Calibration weight LF; LF beam reading invalid	During weight calibration with weight on left foot	error
`5151`	Calibration weight LF; LH beam reading invalid	During weight calibration with weight on left foot	error
`5152`	Calibration weight LF; RH beam reading invalid	During weight calibration with weight on left foot	error
`5153`	Calibration weight LH; RF beam reading invalid	During weight calibration with weight on left head	error
`5154`	Calibration weight LH; LF beam reading invalid	During weight calibration with weight on left head	error
`51:55`	Displayed weight EPROM write error	EEPROM write operation failed when saving displayed weight value	error
`5155`	Calibration weight LH; LH beam reading invalid	During weight calibration with weight on left head	error
`51/55 - Display weight EPROM write error`	Failed to store displayed weight value to EPROM	EPROM device fails during weight value write	error
`5156`	Calibration weight LH; RH beam reading invalid	During weight calibration with weight on left head	error
`5157`	Calibration weight RH; RF beam reading invalid	During weight calibration with weight on right head	error
`5158`	Calibration weight RH; LF beam reading invalid	During weight calibration with weight on right head	error
`5159`	Calibration weight RH; LH beam reading invalid	During weight calibration with weight on right head	error
`5161`	Calibration weight RH; RH beam reading invalid	During weight calibration with weight on right head	error
`51:63`	Displayed weight confirmation failed	Stored displayed weight value not consistent in EEPROM redundant locations	error
`5163`	Calibration zero RF not valid	During calibration zero procedure for right foot beam	error
`51/63 - Display weight verification failed`	Stored displayed weight does not verify in all three locations	Weight read from EPROM in third location differs	error
`5164`	Calibration zero LF not valid	During calibration zero procedure for left foot beam	error
`5165`	Calibration zero LH not valid	During calibration zero procedure for left head beam	error
`5166`	Calibration zero RH not valid	During calibration zero procedure for right head beam	error
`5167`	Right foot beam maximum in wrong position during calibration	During weight calibration procedure for right foot beam	error
`5168`	Left foot beam maximum in wrong position during calibration	During weight calibration procedure for left foot beam	error
`5169`	Left head beam maximum in wrong position during calibration	During weight calibration procedure for left head beam	error
`5170`	Right head beam maximum in wrong position during calibration	During weight calibration procedure for right head beam	error
`5171`	Error saving calibration zero data to EEPROM	EEPROM write operation during calibration	critical
`51:71`	Attempted UNDO TARE with bed exit detection armed	UNDO TARE command issued while bed exit detection is enabled	warning
`51/71 - UNDO TARE with bed exit armed`	Undo tare function attempted while bed exit detection enabled	User attempts UNDO TARE command when exit armed	warning
`5172`	Error confirming calibration zero data in EEPROM	EEPROM verification after writing calibration data	critical
`5173`	Error getting calibration zero data from EEPROM	EEPROM read operation during initialization or diagnostics	critical
`5174`	WEIGH_SETWEIGHT_CMD error saving offset to EEPROM	Weight set command offset write operation	critical
`5175`	FP error calculating calibration coefficients	Calibration coefficient calculation during weight calibration	error
`52`	Test 4 error code	Reserved test 4 failure	error
`53`	Test 5 error code	Reserved test 5 failure	error
`53`	ERR_TEST5	Test 5 error	error
`54`	ERR_TEST6	Test 6 error	error
`54`	Test 6 error code	Reserved test 6 failure	error
`55`	ERR_TEST7	Test 7 error	error
`55`	Test 7 error code	Reserved test 7 failure	error
`56`	ERR_TEST8	Test 8 error	error
`56`	Test 8 error code	Reserved test 8 failure	error
`57`	Test 9 error code	Reserved test 9 failure	error
`57`	ERR_TEST9	Test 9 error	error
`5 (Calibration Error)`	Max reading for weight on left foot incorrect	During calibration when weight applied to left foot position	error
`6`	Maximum reading for weight on left head is incorrect	Calibration detects left head zone reading outside expected range with calibration weight applied	error
`64`	Blower failure	Blower motor not operating or detected fault	error
`65`	A/D conversion failure	Analog to digital converter fault detected	error
`65`	ERR_ATOD_FAIL	Analog-to-digital converter failure	error
`66`	Blower hazard detected	Blower operation poses safety hazard	critical
`67`	ERR_PV_PRS_HI	High pressure when PV is OFF	error
`67`	High pressure when PV OFF	Pressure detected with proportional valve disabled	warning
`68`	Out of range pressure with PV ON	Proportional valve pressure out of specification	warning
`68`	ERR_PV_PRS_BAD	Out of range pressure when PV is ON	error
`69`	ERR_BAD_CAL_Z1	Bad calibration data for zone 1	error
`69`	Bad calibration data Zone 1	Zone 1 calibration data invalid or corrupt	error
`6 (Calibration Error)`	Max reading for weight on left head incorrect	During calibration when weight applied to left head position	error
`7`	Maximum reading for weight on right head is incorrect	Calibration detects right head zone reading outside expected range with calibration weight applied	error
`70`	Bad calibration data Zone 2	Zone 2 calibration data invalid or corrupt	error
`70`	ERR_BAD_CAL_Z2	Bad calibration data for zone 2	error
`71`	Bad calibration data Zone 3	Zone 3 calibration data invalid or corrupt	error
`71`	ERR_BAD_CAL_Z3	Bad calibration data for zone 3	error
`72`	ERR_BAD_CAL_Z4	Bad calibration data for zone 4	error
`72`	Bad calibration data Zone 4	Zone 4 calibration data invalid or corrupt	error
`73`	Bad calibration data proportional valve	Proportional valve calibration data invalid or corrupt	error
`73`	ERR_BAD_CAL_PV	Bad calibration data for PV	error
`74`	Boost pressure low during rotation	Boost pressure insufficient during bed rotation	error
`74`	ERR_BOOST_LOW_PRS	Boost pressure low during rotation	error
`75`	Vacuum valve stuck zone 1	Zone 1 vacuum valve stuck in position	error
`76`	Vacuum valve stuck zone 2	Zone 2 vacuum valve stuck in position	error
`77`	Vacuum valve stuck zone 3	Zone 3 vacuum valve stuck in position	error
`7 (Calibration Error)`	Max reading for weight on right head incorrect	During calibration when weight applied to right head position	error
`80017`	TFSCM pressure valve home position from closed failure	Stepper motor unable to return valve from closed position	error
`80018`	TFSCM vacuum valve home position from closed failure	Stepper motor unable to return valve from closed position	error
`80019`	TFSCM pressure valve early close warning	Pressure valve closing prematurely	warning
`80020`	TFSCM pressure valve early close failure	Pressure valve closing prematurely and not recovering	error
`80021`	TFSCM vacuum valve early close warning	Vacuum valve closing prematurely	warning
`80022`	TFSCM vacuum valve early close failure	Vacuum valve closing prematurely and not recovering	error
`80023`	TFSCM pressure valve late close failure	Pressure valve fails to close at expected time	error
`80024`	TFSCM vacuum valve late close failure	Vacuum valve fails to close at expected time	error
`80025`	TFSCM both valves open (both controls contacted)	Both pressure and vacuum valves open simultaneously	critical
`80033`	TSCM pressure valve home position from closed failure	TSCM stepper motor unable to return valve from closed position	error
`80034`	TSCM vacuum valve home position from closed failure	TSCM stepper motor unable to return valve from closed position	error
`80035`	TSCM pressure valve early close warning	TSCM pressure valve closing prematurely	warning
`80036`	TSCM pressure valve early close failure	TSCM pressure valve closing prematurely and not recovering	error
`80037`	TSCM vacuum valve early close warning	TSCM vacuum valve closing prematurely	warning
`80038`	TSCM vacuum valve early close failure	TSCM vacuum valve closing prematurely and not recovering	error
`80039`	TSCM pressure valve late close failure	TSCM pressure valve fails to close at expected time	error
`80040`	TSCM vacuum valve late close failure	TSCM vacuum valve fails to close at expected time	error
`80041`	TFSCM both valves open (both controls contacted)	Both TSCM valves open simultaneously	critical
`80049`	LARCM removed while operating in therapy mode	Left arm recline module disconnected during operation	error
`80050`	HARCM removed while operating in therapy mode	Head arm recline module disconnected during operation	error
`80051`	PVCM removed while operating in therapy mode	Pressure valve control module disconnected during operation	error
`80052`	AUX 1 removed while operating in therapy mode	Auxiliary 1 module disconnected during operation	error
`80053`	AUX 2 removed while operating in therapy mode	Auxiliary 2 module disconnected during operation	error
`80054`	Communication failure - Missed message warning (P.C.M limit control status)	Warning: missed P.C.M limit control status message	warning
`80055`	Communication failure (P.C.M Limit control Status)	P.C.M limit control status communication failure	error
`80056`	Communication failure - Missed message warning (P.C.M articulation status)	Warning: missed P.C.M articulation status message	warning
`80057`	Communication failure (P.C.M articulation status)	P.C.M articulation status communication failure	error
`80058`	Communication failure - Missed message warning (P.C.M bed status)	Warning: missed P.C.M bed status message	warning
`80059`	Communication failure (P.C.M bed status)	P.C.M bed status communication failure	error
`80060`	Communication failure - Missed message warning (right UCM control status)	Warning: missed right UCM control status message	warning
`80061`	Communication failure - Missed message warning (left UCM control status)	Warning: missed left UCM control status message	warning
`80062`	Missed message warning (GCI control status)	Warning: missed GCI control status message	warning
`80063`	Communication failure (No UCM control status)	No UCM control status received	error
`80065`	Reserved	Reserved for future use	unknown
`80066`	Reserved	Reserved for future use	unknown
`80067`	Reserved	Reserved for future use	unknown
`80068`	Reserved	Reserved for future use	unknown
`80070`	Reserved	Reserved for future use	unknown
`80071`	Reserved	Reserved for future use	unknown
`80072`	Reserved	Reserved for future use	unknown
`80073`	Reserved	Reserved for future use	unknown
`80074`	Reserved	Reserved for future use	unknown
`80081`	Neuron memory corrupt warning	TFSCM Neuron memory corruption detected (warning level)	warning
`80082`	Neuron memory corrupt failure	TFSCM Neuron memory corruption failure	critical
`80083`	TSCM memory corrupt warning	TSCM memory corruption detected (warning level)	warning
`80084`	TSCM memory corrupt failure	TSCM memory corruption failure	critical
`80085`	Bad TFSCM transducer calibration	TFSCM transducer calibration error	error
`80086`	Bad TSCM transducer calibration	TSCM transducer calibration error	error
`80097`	Manifold pressure is below set point for more than 5 seconds	Air supply pressure fails to maintain set point	error
`80098`	Air source cannot reach manifold pressure set-point within 12 seconds	Air pressure fails to reach setpoint within 12 seconds during change	error
`80-113`	TFSCM Heel (Foot Therapy) zone pressure failure	Heel mattress zone pressure cannot be established or drops below minimum	warning
`80113`	Pressure override warning	System pressure exceeds override threshold	warning
`80-113 through 116`	TFSCM pressure control failure or out of tolerance	TFSCM measures mattress zone pressure outside tolerance limits	error
`80114`	Maximum inflate count exceeded	Cushion inflation cycles exceed maximum allowed count	error
`80115`	Cushion inflate failure	Inability to inflate cushion to required pressure	error
`80 116`	Cushion adjust count exceeded	Excessive adjustment cycles	warning
`80-129`	TSCM Head zone pressure failure	Head mattress zone pressure out of tolerance	warning
`80-129 through 132`	TSCM mattress zone pressure out of specification	Treatment surface zone pressure below minimum or above maximum setpoint	warning
`80-129 through 132`	TSCM pressure control failure or out of tolerance	TSCM measures mattress zone pressure outside tolerance limits	error
`80/130`	Initialization failure - TSCM pressure failure	TSCM module initialization failure	critical
`80/145`	Initialization failure	Initialization error with field values	critical
`80-145-008`	Blower supply hose system error	Blocked or damaged supply hoses or blower electrical failure	error
`80 146`	Loss of AC power	AC power disconnected or failure	critical
`80/161`	TFSM pressure valve late close failure	Pressure valve takes too long to close	error
`80-161 through 164`	TFSCM pressure or vacuum sensor failure	Pressure sensor in TFSCM not responding or reading out of range	error
`80-161 through 164`	TFSCM additional failure condition	TFSCM detects failure mode in specified range	error
`80-161 through 80-164`	TFSCM failure	Treatment Foot Surface Control Module malfunction	error
`80/162`	TFSM vacuum valve late close failure	Vacuum valve takes too long to close	error
`80/163`	TFSM pressure valve late close warning	Pressure valve closes slower than normal	warning
`80/164`	TFSM vacuum valve late close warning	Vacuum valve closes slower than normal	warning
`80/165`	TSCM pressure valve late close failure	Pressure valve takes too long to close	error
`80-165 through 168`	TSCM pressure or vacuum sensor failure	Pressure sensor in TSCM not responding or reading out of range	error
`80-165 through 168`	TSCM additional failure condition	TSCM detects failure mode in specified range	error
`80-165 through 80-168`	TSCM failure	Treatment Surface Control module malfunction	error
`80/166`	TSCM vacuum valve late close failure	Vacuum valve takes too long to close	error
`80/167`	TSCM pressure valve late close warning	Pressure valve closes slower than normal	warning
`80/168`	TSCM vacuum valve late close warning	Vacuum valve closes slower than normal	warning
`8017`	TFSCM pressure valve home position failed to return from closed	TFSCM initialization or valve control sequence	error
`80 173`	Error getting calibration zero data—Invalid operation	Working board with repeatable error after power reset	critical
`80 174`	WEIGH_SETWEIGHT_CMD error saving offset, EEPROM—Invalid operation	Working board with repeatable error after power reset	critical
`80 175`	FP error calculating coefficients—The coefficients cannot be calculated	Beam readings have not changed during calibration	error
`80-17 through 31`	Treatment Foot Surface Control Module (TFSCM) switch or stepper failure	TFSCM detects internal switch or stepper motor malfunction	error
`80-17 through 80-31`	TFSCM failure	Treatment Foot Surface Control Module malfunction	error
`8018`	TFSCM vacuum valve home position failed to return from closed	TFSCM initialization or valve control sequence	error
`8019`	TFSCM pressure valve early close warning	TFSCM pressure valve control during operation	warning
`8020`	TFSCM pressure valve early close failure	TFSCM pressure valve control during operation	error
`8021`	TFSCM vacuum valve early close warning	TFSCM vacuum valve control during operation	warning
`8022`	TFSCM vacuum valve early close failure	TFSCM vacuum valve control during operation	error
`8023`	TFSCM pressure valve late close failure	TFSCM pressure valve control at end of operation cycle	error
`8024`	TFSCM vacuum valve late close failure	TFSCM vacuum valve control at end of operation cycle	error
`8025`	TFSCM both valves open; both controls contacted simultaneously	TFSCM valve control logic error	critical
`8026`	TFSCM invalid switch data	Stepper motor or switch failure	error
`80 27`	TFSCM pressure valve will not close warning (switch always contacted)	Pressure valve stuck in open or partial open position	warning
`80 28`	TFSCM vacuum valve will not close warning (switch always contacted)	Vacuum valve stuck in open or partial open position	warning
`80 29`	TFSCM both valves open warning (both switches contacted)	Both valves open simultaneously	warning
`80 30`	TFSCM pressure valve will not open warning (switch not contacted)	Pressure valve stuck closed	warning
`80 31`	TFSCM vacuum valve will not open warning (switch not contacted)	Vacuum valve stuck closed	warning
`8033`	TSCM pressure valve home position failed to return from closed	TSCM initialization or valve control sequence	error
`80-33 through 47`	Treatment Surface Control Module (TSCM) switch or stepper failure	TSCM detects internal switch or stepper motor malfunction	error
`80-33 through 80-47`	TSCM failure	Treatment Surface Control module malfunction	error
`8034`	TSCM vacuum valve home position failed to return from closed	TSCM initialization or valve control sequence	error
`8035`	TSCM pressure valve early close warning	TSCM pressure valve control during operation	warning
`8036`	TSCM pressure valve early close failure	TSCM pressure valve control during operation	error
`8037`	TSCM vacuum valve early close warning	TSCM vacuum valve control during operation	warning
`80 38`	TSCM vacuum valve early close failure	TSCM stepper motor problem	error
`80 39`	TSCM pressure valve late close failure	TSCM stepper motor problem	error
`80 40`	TSCM vacuum valve late close failure	TSCM stepper motor problem	error
`80 41`	TFSCM both valves open (both controls contacted)	TSCM stepper motor problem	error
`80 42`	TSCM invalid switch data	Invalid switch signal	warning
`80 43`	TSCM pressure valve will not close warning (switch always contacted)	Pressure valve stuck open	warning
`80 44`	TSCM vacuum valve will not close warning (switch always contacted)	Vacuum valve stuck open	warning
`80 45`	TSCM both valves open warning (both switches contacted)	Both valves open simultaneously	warning
`80 46`	TSCM pressure valve will not open warning (switch not contacted)	Pressure valve stuck closed	warning
`80 47`	TSCM vacuum valve will not open warning (switch not contacted)	Vacuum valve stuck closed	warning
`8049`	LARCM removed while in therapy mode	Module removal during active therapy	error
`8050`	HARCM removed while in therapy mode	Module removal during active therapy	error
`8051`	PVCM removed while in therapy mode	Module removal during active therapy	error
`8052`	AUX 1 removed while in therapy mode	Module removal during active therapy	error
`8053`	AUX 2 removed while in therapy mode	Module removal during active therapy	error
`80 54`	Communication failure - Missed message warning (P.C.M limit control status)	Signal cable or board failure	error
`80 55`	Communication failure (P.C.M Limit control Status)	Signal cable or board failure	error
`80 56`	Communication failure - Missed message warning (P.C.M articulation status)	Signal cable or board failure	error
`80 57`	Communication failure (P.C.M articulation status)	Signal cable or board failure	error
`80 58`	Communication failure - Missed message warning (P.C.M bed status)	Signal cable or board failure	error
`8059`	Communication failure - PCM bed status	Lost communication with bed status control module	error
`80 60`	Communication failure - Missed message warning (right UCM control status)	Signal cable or board failure	error
`80 61`	Communication failure - Missed message warning (left UCM control status)	Signal cable or board failure	error
`8062`	Missed message warning - GCI control status	Lost communication with GCI control module	warning
`8063`	Communication failure - No UCM control status	No upper control module communication detected	error
`80 65`	Reserved	Unknown	unknown
`80 66`	Reserved	Unknown	unknown
`80 67`	Reserved	Unknown	unknown
`80 68`	Reserved	Unknown	unknown
`80 69`	Missed message warning (PVCM status)	Communication loss with PVCM module	warning
`80 70`	Reserved	Unknown	unknown
`80 72`	Reserved	Unknown	unknown
`80 74`	Reserved	Unknown	unknown
`80 81`	Neuron memory corrupt warning	TFSCM Neuron memory corruption	warning
`80 82`	Neuron memory corrupt failure	TFSCM Neuron memory corruption	critical
`80 83`	TSCM memory corrupt warning	TFSCM memory corruption	warning
`80 84`	TSCM memory corrupt failure	TFSCM memory corruption	critical
`80 85`	Bad TFSCM transducer calibration	TFSCM transducer calibration failure	error
`80 86`	Bad TSCM transducer calibration	TSCM transducer calibration failure	error
`80-97`	Blower/supply system failure	Blower does not operate during initialization or operation	error
`80 97`	Manifold pressure is below set point for more than 5 seconds	Insufficient manifold pressure	error
`80 98`	Air source can not reach manifold pressure set-point change within 12 seconds	Slow pressure rise	error
`80-98`	Blower/supply system secondary failure	Blower malfunction or supply hose damage	error
`8113`	Pressure override warning	Pneumatic pressure exceeded safety threshold	warning
`8114`	Maximum inflate count exceeded	Inflation cycle count limit exceeded	error
`8115`	Cushion inflate failure	Cushion failed to inflate	error
`8116`	Cushion adjust count exceeded	Adjustment cycle count limit exceeded	error
`8129`	Pressure failure	Pneumatic pressure system failure	critical
`8130`	Initialization failure - Pressure failure	System initialization failed due to pressure issue	critical
`8145`	Initialization failure - Blower not running	System initialization failed due to blower stopped	critical
`8146`	Loss of AC power	AC power supply lost	critical
`8161`	TFSCM pressure valve late close failure	Valve closure timing fault	error
`8162`	TFSCM vacuum valve late close failure	Valve closure timing fault	error
`8163`	TFSCM pressure valve late close warning	Valve closure timing issue	warning
`8164`	TFSCM vacuum valve late close warning	Valve closure timing issue	warning
`8165`	TSCM pressure valve late close failure	Valve closure timing fault	error
`8166`	TSCM vacuum valve late close failure	Valve closure timing fault	error
`8167`	TSCM pressure valve late close warning	Valve closure timing issue	warning
`8168`	TSCM vacuum valve late close warning	Valve closure timing issue	warning
`84`	ERR_Z1_BAD_STATE	Bad state in zone 1 state machine	error
`84`	Zone 1 bad state in state machine	Zone 1 state machine enters invalid state	error
`85`	Zone 2 bad state in state machine	Zone 2 state machine enters invalid state	error
`85`	ERR_Z2_BAD_STATE	Bad state in zone 2 state machine	error
`85-01`	Head angle mismatch	Head angle sensor or actuator position disagreement	error
`85-199`	Head angle out of range	Head angle measurement exceeds acceptable limits	error
`85-200`	Foot angle out of range	Foot angle measurement exceeds acceptable limits	error
`85-201`	Loss of communications with PCM	PCM module communication failure	error
`85-202`	RCV comm buffer size error	Receive buffer size too large, zero, or overflow	error
`85-203`	Loss of communications with GCI	GCI module communication failure	error
`85-204`	RCV comm checksum error	Data transmission checksum verification failed	error
`85-205`	Patient weight update not received from GCI	GCI fails to transmit patient weight data	error
`85-206`	Undefined value in send_output function	Software encounters unhandled value in command handler	error
`85-207`	Undefined value in gci_command_b function	Software encounters unhandled value in command handler	error
`85-209`	Undefined value in gci_command_a function	Software encounters unhandled value in command handler	error
`85-210`	Undefined value in send_to_network function	Software encounters unhandled value in command handler	error
`85-211`	RCV comm buffer error repeated 20 times	Buffer size error occurs 20 consecutive times	critical
`85-212`	RCV checksum error too many in a row, service required	Checksum errors repeated consecutively	critical
`85-213`	Too many rcv (pio buff) errors	Excessive receive buffer errors detected	error
`85-214`	Turn assist cannot start	Turn assist motor fails to start when commanded	warning
`85-215`	Turn assist cannot start - left siderail down	Turn assist blocked when left intermediate siderail not raised	info
`85-216`	Patient weight out of range	GCI reports patient weight outside acceptable limits	warning
`85-217`	Head angle out of range	Head angle measurement exceeds acceptable limits	error
`85-218`	Foot angle out of range	Foot angle measurement exceeds acceptable limits	error
`86`	Zone 3 bad state in state machine	Zone 3 state machine enters invalid state	error
`86`	ERR_Z3_BAD_STATE	Bad state in zone 3 state machine	error
`87`	Zone 4 bad state in state machine	Zone 4 state machine enters invalid state	error
`87`	ERR_Z4_BAD_STATE	Bad state in zone 4 state machine	error
`87-41`	Mattress disconnected error	Mattress connection lost or not detected	error
`87-43`	External EEPROM I2C error	External EEPROM communication failure	error
`87-44`	EEPROM data corrupt or PCB mismatch	1 = Error Present, 0 = Error Not Present	error
`87-45`	Valve type mismatch	1 = Error Present, 0 = Error Not Present	error
`87-46`	Under solenoid voltage	Solenoid supply voltage below acceptable minimum	error
`87-47`	Over solenoid voltage	1 = Error Present, 0 = Error Not Present	warning
`87-48`	Over supervisory voltage on	1 = Error Present, 0 = Error Not Present	warning
`87-49`	Under supervisory voltage	1 = Error Present, 0 = Error Not Present	warning
`87-50`	Over supervisory off voltage	1 = Error Present, 0 = Error Not Present	warning
`87-51`	Valve current under error	1 = Error Present, 0 = Error Not Present	error
`87-52`	Valve current over error	1 = Error Present, 0 = Error Not Present	error
`87-53`	Valve current under error - turn assist	1 = Error Present, 0 = Error Not Present	error
`87-54`	Valve current over error - turn assist	1 = Error Present, 0 = Error Not Present	error
`87-55`	CAN heartbeat missing	CAN bus heartbeat message not received	error
`87-56`	Inflate head bladder error	1 = Error Present, 0 = Error Not Present	error
`87-57`	Inflate seat bladder error	1 = Error Present, 0 = Error Not Present	error
`87-58`	Inflate heel bladder error	1 = Error Present, 0 = Error Not Present	error
`87-59`	Deflate head bladder error	1 = Error Present, 0 = Error Not Present	error
`87-60`	Deflate seat bladder error	1 = Error Present, 0 = Error Not Present	error
`87-61`	Deflate heel bladder error	1 = Error Present, 0 = Error Not Present	error
`87-62`	Deflate right turn assist bladder error	Right turn assist bladder deflation fails	error
`87-63`	Deflate left turn assist bladder error	Left turn assist bladder deflation fails	error
`87-64`	Inflate LTA bladder error	1 = Error Present, 0 = Error Not Present	error
`87-65`	Inflate RTA bladder error	1 = Error Present, 0 = Error Not Present	error
`87-66`	Excessive leak head	Head section air pressure loss exceeds threshold	error
`87-67`	Excessive leak seat	Seat section air pressure loss exceeds threshold	error
`87-68`	Excessive leak foot	Foot section air pressure loss exceeds threshold	error
`87-69`	Excessive leak left turn assist	Left turn assist air pressure loss exceeds threshold	error
`87-70`	Excessive leak right turn assist	Right turn assist air pressure loss exceeds threshold	error
`87-71`	EEPROM data corrupt or PCB mismatch	1 = Error Present, 0 = Error Not Present	error
`87-72`	24V supply error	1 = Error Present, 0 = Error Not Present	critical
`87-73`	Blower Voltage Error Present	1 = Error Present, 0 = Error Not Present	error
`87-74`	External EEPROM Error Present	1 = Error Present, 0 = Error Not Present	error
`87-75`	CAN Heartbeat Error Present	1 = Error Present, 0 = Error Not Present	error
`87-77`	Blower Current Error Present	1 = Error Present, 0 = Error Not Present	error
`88`	Zone 1 no new data timeout	Timeout waiting for Zone 1 data update	error
`89`	Zone 2 no new data timeout	Timeout waiting for Zone 2 data update	error
`90`	Zone 3 no new data timeout	Timeout waiting for Zone 3 data update	error
`90-100`	Executed default in switch statement	Unexpected code path executed	error
`90-101`	Executed default in switch statement - transition section	Unexpected code path in state transition	error
`90-102`	Executed default in switch statement - timer section	Unexpected code path in timer handling	error
`90-103`	Mode or board command error - no match for TFM timeout	Command timeout or unrecognized command	error
`90-104`	Rotation level right out of range	Invalid rotation position value	error
`90-105`	Rotation level left out of range	Invalid rotation position value	error
`90-106`	Executed default in switch statement	Unexpected code path executed	error
`90/107`	Variable found out of range	Invalid variable value in firmware	warning
`90-108`	Error found - index for pv is not valid	Invalid PV configuration index	error
`90/108`	Invalid PV index	PV module index error	warning
`90-109`	No TFM communications - illegal configuration	TFM module communication lost	critical
`90-110`	No TTM communications - illegal configuration	TTM module communication lost	critical
`90111`	No base communications illegal configuration rotation module no base	Base module missing when rotation module present	error
`90113`	No base communications illegal configuration PV module no base	Base module missing when PV module present	error
`90-114`	PV module installed but cannot communicate with module	PV module communication failure	error
`90-115`	Rotation module installed but cannot communicate with module	Rotation module communication failure	error
`90-116`	Rotation module removed during rotation	Module removed while in operation	warning
`90/117`	Loss of PCM communication - bed positions	PCM communication failure affecting position control	critical
`90.118`	Sending data to GCI with invalid object number	GCI data send with invalid object_no (not 2 or 3)	error
`90-119`	Timeout waiting for ready too long	Module ready signal timeout	error
`90-120`	Mode or board command error - no match for TTM timeout	Command timeout or unrecognized command to TTM	error
`90-121`	Mode or board command error - no match for BASE timeout	Command timeout or unrecognized command to BASE	error
`90/122`	ROTATION command mismatch or timeout	ROTATION mode or board command error	error
`90-122`	Mode or board command error - no match for ROTATION timeout	Command timeout or unrecognized command to ROTATION	error
`90/123`	Loss of GCI communications	Graphical Caregiver Interface communication failure	critical
`90124`	Loss of siderail left communications	Siderail left module communication failure	warning
`90125`	Loss of siderail right communications	Siderail right module communication failure	warning
`90/126`	EEPROM write minute counter error	Minute counter write failure	error
`90127`	Write all rotation statistics error	Failure to write rotation statistics	warning
`90129`	Read all rotation statistics error	Failure to read rotation statistics	warning
`90/130`	Error reading single rotation statistic	EEPROM read failure for individual rotation stat	error
`90/131`	Error writing single rotation statistic	EEPROM write failure for individual rotation stat	error
`90-132`	EEPROM write error for therapy min counter	Failed write to therapy min counter in EEPROM	error
`90-133`	EEPROM write error for off min counter	Failed write to off min counter in EEPROM	error
`90-134`	EEPROM write error for diagnostic time stamp 2	Failed write to diagnostic time stamp 2 in EEPROM	error
`90-135`	EEPROM read error for diagnostic time stamp 2	Failed read of diagnostic time stamp 2 from EEPROM	error
`90-136`	EEPROM write error for rotation counter	Failed write to rotation counter in EEPROM	error
`90-137`	EEPROM write error for percussion counter	Failed write to percussion counter in EEPROM	error
`90-138`	EEPROM write error for vibration counter	Failed write to vibration counter in EEPROM	error
`90-139`	EEPROM write error for statistics index	Failed write to statistics index in EEPROM	error
`90-140`	EEPROM read error for statistics index	Failed read of statistics index from EEPROM	error
`90-141`	EEPROM write error for module weight	Failed write to module weight in EEPROM	error
`90-142`	EEPROM read error for module weight	Failed read of module weight from EEPROM	error
`90143`	WRITE_VIB_PERC_EE error	Cannot write vibration percussion to EEPROM	error
`90-143`	EEPROM write error for vibration/percussion data	Failed write to vibration/percussion data in EEPROM	error
`90-145`	EEPROM read error for rotation counter	Failed read of rotation counter from EEPROM	error
`90-146`	EEPROM read error for percussion counter	Failed read of percussion counter from EEPROM	error
`90-147`	EEPROM read error for vibration counter	Failed read of vibration counter from EEPROM	error
`90148`	READ_VIB_PERC_EE error	Cannot read vibration percussion from EEPROM	error
`90-148`	EEPROM read error for vibration/percussion data	Failed read of vibration/percussion data from EEPROM	error
`90-149`	EEPROM write error for serial number	Failed write to serial number in EEPROM	error
`90-150`	EEPROM read error for alarm silence time	Failed read of alarm silence time from EEPROM	error
`90-151`	EEPROM read error for RTC power down data	Failed read of RTC power down data from EEPROM	error
`90-152`	EEPROM read error for therapy min counter	Failed read of therapy min counter from EEPROM	error
`90-153`	EEPROM read error for serial number	Failed read of serial number from EEPROM	error
`90-154`	Therapy ID variable out of valid range	Therapy ID variable does not fall within acceptable range	error
`90-155`	Index out of range fatal error	Software index exceeds valid bounds	critical
`90-156`	Percussion/Vibration module installed without base module	PV or Rotation module detected but no base module present	error
`90-157`	Rotation module installed without base module	Rotation module detected but no base module present	error
`90-158`	Reset all pulmonary modules	Diagnostic command sent to reset modules	info
`90-158`	Error reading Q-factor count data	Failed to read Q-factor count from module memory	error
`90-159`	Initialize new board	Diagnostic command sent to initialize board	info
`90-159`	Error writing Q-factor data	Failed to write Q-factor data to module memory	error
`90-161`	Timer expiration error	Timer expired unexpectedly during operation	error
`90-162`	Error writing statistics data to FRAM	Failed to write statistics to ferroelectric RAM	error
`90-163`	Timer not incrementing error	Software timer failed to increment; error[3] contains timer ID	error
`90-164`	PPM module removed during percussion/vibration operation	Percussion/Vibration module detected as removed during operation	error
`90165`	Pressure-rotation module no communication on power up	PRM module fails to communicate at startup	error
`90166`	Base module no communication on power up	Base module (PBM) fails to communicate at startup	error
`90167`	Pressure-pump module no communication on power up	PPM module fails to communicate at startup	error
`90168`	Therapy treatment module no communication	TTM module communication failure	error
`90169`	Therapy function module no communication	TFM module communication failure	error
`90/17`	Error writing alarm silence to EEPROM	EEPROM write failure for alarm silence	error
`90170`	Rotation checksum error	Checksum validation fails for rotation data	error
`90171`	Base module installed without communication	Base module detected but cannot communicate	error
`90172`	More than one therapy active at reset	Multiple active therapies detected at startup	info
`90173`	Checksum error for data sending to PV valve	Checksum validation fails for PV valve data	error
`90174`	Patient weight for module mismatch or zero	Module patient weight invalid or zero	warning
`90175`	Patient weight not updated from GCI	GCI fails to transmit patient weight update	warning
`90177`	GCI SpO2RT with LAL compatible command not received	Incompatible GCI command for SpO2RT LAL module	warning
`90178`	LAL module not communicating	LAL module communication failure	warning
`90179`	Pressure request exceeds 30 inch water	Pressure request command exceeds safe limit	warning
`90/18`	EEPROM error writing minute counter	EEPROM write failure for minute counter	error
`90180`	Cannot determine EEPROM type	EEPROM identification failed at startup	critical
`90181`	EEPROM type not valid	EEPROM type read but not recognized	critical
`90182`	Error writing shut off mode to EEPROM	Failure to write shut off mode data	warning
`90183`	Error reading shut off mode from EEPROM	Failure to read shut off mode data	warning
`90184`	No pressure reading from LAL module	LAL module not returning pressure data	info
`90-185`	Scale diagnostic function	Diagnostic command sent to test scale	info
`90185`	Pressure-vibration module not Plus version	Non-Plus version of P and V module detected	warning
`90186`	Therapy function module not Plus version	Non-Plus version of TFM detected	warning
`90187`	Rotation not Plus version	Rotation module software version incompatible	error
`90188`	Base not Plus version	Base module software version incompatible	error
`90189`	Therapy treatment module not Plus version	Non-Plus version of TTM detected	warning
`90190`	EEPROM error installed variable	Installed variable EEPROM error	warning
`90191`	EEPROM error acclimate timer	Acclimate timer EEPROM error	warning
`90193`	State number out of range	State variable exceeds valid range	info
`90194`	System in failure state	System has entered failure state	info
`90195`	Next level for training	Training mode level advancement	info
`90196`	Started rotation	Rotation therapy initiated	info
`90196`	Rotation therapy started	Rotation therapy initiated	info
`90197`	Write module weight EEPROM error for LAL module	Failure to write LAL module weight to EEPROM	warning
`90198`	Read module weight EEPROM error for LAL module	Failure to read LAL module weight from EEPROM	warning
`90/20`	Error writing therapy counters	EEPROM write failure for therapy data	error
`90-203`	Short valve cycle and leak test	Diagnostic command sent to test valves and bladders	info
`90/21`	Error writing rotation data	EEPROM write failure for rotation statistics	error
`90-219`	Clear leak test failure counts	Diagnostic command sent to reset FRAM counters	info
`90/22`	Error writing percussion data	EEPROM write failure for percussion	error
`90-220`	Switch/case default executed	Software state machine reached unhandled case	error
`90-220`	Clear permanent valve counters	Diagnostic command sent to reset counters	info
`90-221`	BYPASS mode for simulator	Diagnostic command sent to enable bypass mode	info
`90-222`	Clear permanent cycle counters	Diagnostic command sent to reset counters	info
`90/23`	Error writing vibration data	EEPROM write failure for vibration	error
`90/24`	Error writing percussion and vibration data	EEPROM write failure for combined therapy	error
`90-241`	Switch/case default executed	Software state machine reached unhandled case	error
`90-245`	Switch/case default executed	Software state machine reached unhandled case	error
`90-245`	Display communication quality factor	Diagnostic command sent to check CAN bus quality	info
`90-249`	Switch/case default executed	Software state machine reached unhandled case	error
`90/25`	EEPROM busy too long	EEPROM timeout on write operation	error
`90-256`	Air system off for foam mattress	Diagnostic command sent to disable air system	info
`90/26`	Number of bytes to read out of range	Invalid EEPROM read request	warning
`90/27`	Number of bytes to read out of range	Invalid EEPROM read request	warning
`90/28`	EEPROM busy too long	EEPROM timeout on read operation	error
`90-29`	TFM module in safe state	TFM enters safe state mode	warning
`90-30`	TTM module in safe state	TTM enters safe state mode	warning
`90-31`	PBM module in safe state	PBM enters safe state mode	warning
`90-33`	PRM module in safe state	PRM enters safe state mode	warning
`90/34`	Default case executed in switch statement	Unexpected code path in firmware	warning
`90/35`	Error writing serial number	EEPROM write failure for serial number	error
`90/36`	Error writing serial number	EEPROM write failure for serial number	error
`90/37`	Error writing serial number	EEPROM write failure for serial number	error
`90/38`	Error writing serial number	EEPROM write failure for serial number	error
`90/39`	Error writing serial number	EEPROM write failure for serial number	error
`90/40`	Error reading rotation data	EEPROM read failure for rotation	error
`90-41`	Read rotation confirm error	EEPROM read verification failure	error
`90/41`	Error confirming rotation data	EEPROM verification failure for rotation	error
`90-42`	Manifold pressure failure on power up	Low pneumatic pressure at startup	error
`90-43`	Timed out trying to go to position for pump valve	Pump valve position command timeout	error
`90-44`	Default executed in case statement	Unexpected code path executed	error
`90-45`	Valve opening percentage value out of range	Pump valve percentage command out of valid range	warning
`90.46`	Bad pressure reading	Pressure sensor reading invalid	error
`90.47`	Invalid command received	Unrecognized control command	error
`90/49`	Command queue overflow	Too many pending firmware commands	error
`90/50`	Bad target specified	Invalid target in firmware command	warning
`90/51`	Stale message	Outdated or delayed firmware message	warning
`90/53`	Error reading on-time value	EEPROM read failure for on-time	error
`90/54`	Error reading off-time value	EEPROM read failure for off-time	error
`90/55`	Error reading start-time value	EEPROM read failure for start-time	error
`90/56`	Error reading therapy counters	EEPROM read failure for therapy data	error
`90/57`	Error saving data	Data write failure during normal operation	error
`90/58`	Error saving data	Data write failure during normal operation	error
`90/59`	Error saving data	Data write failure during normal operation	error
`90/60`	Error saving or reading data	Data access failure during operation	error
`90/61`	Error saving data	Data write failure during normal operation	error
`90-62`	Error reading data from EEPROM during reset	Memory read failure at startup	error
`90/63`	Error reading data	EEPROM or data read failure	error
`90/65`	TFM module communication error	Communication failure to TFM module	critical
`90-65`	Error tfm_module	TFM module error detected	error
`90/66`	Base module communication error	Communication failure to base module	critical
`90-66`	Error base_module	Base module error detected	error
`90.67`	Pulmonary/Percussion module communication error	Communication failure with PV module	error
`90-67`	Error pv_module	Pressure valve module error detected	error
`90.68`	Therapy time tracking module communication error	Communication failure with TTM module	error
`90-68`	Error ttm_module	TTM module error detected	error
`90/69`	Spare module communication error	Communication failure to spare module	critical
`90-69`	Error spare_module	Spare module error detected	error
`90/70`	Rotation module communication error	Communication failure to rotation module	critical
`90-70`	Error rot_module	Rotation module error detected	error
`90.71`	Timeout reading pressure values	Pressure read operation exceeds timeout	error
`90/72`	EEPROM busy too long on read	EEPROM timeout	error
`90/73`	EEPROM busy too long on write	EEPROM timeout	error
`90/74`	Error writing rotation statistics	EEPROM write failure for rotation data	error
`90/75`	Error writing rotation statistics	EEPROM write failure for rotation data	error
`90/76`	Error writing rotation statistics	EEPROM write failure for rotation data	error
`90/77`	Error writing rotation statistics	EEPROM write failure for rotation data	error
`90.78`	SPI communication error to rotation module	Serial Peripheral Interface communication fails	error
`9079`	Detect line connection error to rotation module	Connection lost to rotation module	error
`90-81`	SPI communication error to pv module	Serial bus communication failure	error
`9082`	Detect line connection error to PV module	Connection lost to PV module	error
`90/83`	Error reading/writing values	Data read/write failure to modules	error
`90-84`	Having to resend command to base module for normal mode	Command acknowledgment failure	warning
`90-85`	Having to resend command to rot module for normal mode	Command acknowledgment failure	warning
`90/86`	Error writing statistics indices	EEPROM write failure for statistics	error
`90/87`	Error reading statistics indices	EEPROM read failure for statistics	error
`90/88`	Day date out of range for statistics read	Invalid date in statistics read operation	warning
`90/89`	Error writing diagnostic statistics	EEPROM write failure for diagnostic data	error
`90/90`	Day date out of range for statistics read	Invalid date in statistics read operation	warning
`90/91`	Error reading diagnostic statistics	EEPROM read failure for diagnostic data	error
`90-94`	Executed default in switch statement	Unexpected code path executed	error
`90/95`	PV state machine error	Pulmonary valve state machine failure	error
`90.97`	PV state machine error with other modules	Modules fail to maintain correct state during therapy	error
`9097`	PV state machine other modules will not stay in correct state during therapy	PV module unable to maintain state during operation	error
`90.98`	Checksum error with data	Data integrity check fails	error
`90-99`	Display software revision	Diagnostic command sent to display module versions	info
`90-99`	Frequency from tfm or ppm does not match	Frequency synchronization failure	error
`90/99`	Frequency mismatch between modules	TFM or PPM frequency does not match	error
`91`	Zone 4 no new data timeout	Timeout waiting for Zone 4 data update	error
`91-1`	RS232 serial communication overflow warning	RS232 buffer overflow detected	info
`91-100`	Zone 2 pressure not achieved during leak test	Zone 2 failed to reach required pressure during leak test	error
`91-101`	Zone 3 pressure not achieved during leak test	Zone 3 failed to reach required pressure during leak test	error
`91-102`	Zone 1 pressure control failure during leak test	Zone 1 failed pressure control during leak test	error
`91-103`	Zone 2 pressure control failure during leak test	Zone 2 failed pressure control during leak test	error
`91-104`	Zone 3 pressure control failure during leak test	Zone 3 failed pressure control during leak test	error
`91-112`	Zone 1 pressure control unable to reach setpoint	Heel bladder pressure control failure - cannot reach target setpoint	error
`91-112, 115, 118`	TFM Heel zone pressure error	Heel (Purple) zone pressure out of specification on Foot Therapy mattress	error
`91-113`	Zone 2 pressure control unable to reach setpoint	Retract bladder pressure control failure - cannot reach target setpoint	error
`91-113, 116, 119`	TFM Retract zone pressure error	Retract (Gray) zone pressure out of specification on Foot Therapy mattress	error
`91-114`	Zone 3 pressure control unable to reach setpoint	Collapse bladder pressure control failure - cannot reach target setpoint	error
`91-114, 117, 120`	TFM Collapse zone pressure error	Collapse (Orange) zone pressure out of specification on Foot Therapy mattress	error
`91-115`	Zone 1 pressure out of tolerance for 15 seconds	Heel bladder pressure not within tolerance band for 15 seconds	error
`91-116`	Zone 2 pressure out of tolerance for 15 seconds	Retract bladder pressure not within tolerance band for 15 seconds	error
`91-117`	Zone 3 pressure out of tolerance for 15 seconds	Collapse bladder pressure not within tolerance band for 15 seconds	error
`91-118`	Zone 1 pressure outside safe limits	Heel bladder pressure outside safe operating limits	error
`91-119`	Zone 2 pressure outside safe limits	Retract bladder pressure outside safe operating limits	error
`91-120`	Zone 3 pressure outside safe limits	Collapse bladder pressure outside safe operating limits	error
`91-121`	Mode/hazard timeout	Mode or hazard timeout condition triggered	error
`91-130`	EEPROM still busy error	EEPROM device still processing from previous operation	error
`91-131`	EEPROM bad address error	Attempted access to invalid EEPROM address	error
`91-132`	EEPROM unknown error during initialization	EEPROM error occurred during module initialization	error
`91-133`	EEPROM data verification failure	EEPROM data verification checksum mismatch	error
`91-134`	EEPROM data error in Sector 1	EEPROM Sector 1 read/write error detected	error
`91-135`	EEPROM data error in Sector 2	EEPROM Sector 2 read/write error detected	error
`91-136`	EEPROM data error in Sector 3	EEPROM Sector 3 read/write error detected	error
`91-137`	EEPROM data mismatch all sectors	EEPROM redundancy check failed across all sectors	error
`91-138`	EEPROM initialization failure	EEPROM failed to initialize at module startup	error
`91-139`	EEPROM test error 1 (reserved)	EEPROM test 1 failure generated	error
`91-140`	EEPROM test error 2 (reserved)	EEPROM test 2 failure generated	error
`91-141`	EEPROM test error 3 (reserved)	EEPROM test 3 failure generated	error
`91-142`	EEPROM test error 4 (reserved)	EEPROM test pass count error generated	error
`91-144`	Safe state error code (hex 0x90)	Safe state error condition triggered	critical
`91-145`	ROM checksum verification failure (hex 0x91)	ROM checksum failed during verification	critical
`91-17`	SPI serial communication overflow warning	SPI buffer overflow detected	info
`91-18`	SPI bad beginning of frame warning	SPI frame received with invalid start delimiter	info
`91-19`	SPI bad CRC warning	SPI frame received with incorrect checksum	info
`91-2`	RS232 bad beginning of frame warning	RS232 frame received with invalid start delimiter	info
`91-20`	SPI communication timeout warning	No SPI data received within timeout period	info
`91-21`	SPI bad message ID warning	SPI frame received with invalid message ID	info
`91-3`	RS232 bad CRC warning	RS232 frame received with incorrect checksum	info
`91-32`	5V power supply voltage low warning	5V supply voltage below threshold	info
`91-33`	5V power supply voltage high warning	5V supply voltage above threshold	info
`91-34`	15V power supply voltage low warning	15V supply voltage below threshold	info
`91-35`	15V power supply voltage high warning	15V supply voltage above threshold	info
`91-4`	RS232 communication timeout warning	No RS232 data received within timeout period	info
`91-48`	Timers not running error	Software timers failed to start or halted unexpectedly	error
`91-49`	Test error code 1 (reserved)	Test 1 error code generated	error
`91-5`	RS232 bad message ID warning	RS232 frame received with invalid message ID	info
`91-50`	Test error code 2 (reserved)	Test 2 error code generated	error
`91-51`	Test error code 3 (reserved)	Test 3 error code generated	error
`91-52`	Test error code 4 (reserved)	Test 4 error code generated	error
`91-53`	Test error code 5 (reserved)	Test 5 error code generated	error
`91-54`	Test error code 6 (reserved)	Test 6 error code generated	error
`91-55`	Test error code 7 (reserved)	Test 7 error code generated	error
`91-56`	Test error code 8 (reserved)	Test 8 error code generated	error
`91-57`	Test error code 9 (reserved)	Test 9 error code generated	error
`91-64`	Blower failure error	Pressure blower motor failed or not operating	error
`91-65`	Analog to digital converter failure	ATOD converter malfunction detected	error
`91-66`	Blower hazard error	Blower safety hazard condition detected	critical
`91-67`	Percussion/Vibration high pressure when OFF	High pressure detected in PV system when module is OFF	error
`91-68`	Percussion/Vibration pressure out of range when ON	Pressure out of acceptable range when PV module is ON	error
`91-69`	Bad calibration data Z1 (hex 0x45)	Zone 1 calibration data invalid or corrupted	error
`91-70`	Bad calibration data Z2 (hex 0x46)	Zone 2 calibration data invalid or corrupted	error
`91-71`	Bad calibration data Z3 (hex 0x47)	Zone 3 calibration data invalid or corrupted	error
`91-72`	Bad calibration data Z4 (hex 0x48)	Zone 4 calibration data invalid or corrupted	error
`91-73`	Bad calibration data for Percussion/Vibration (hex 0x49)	PV module calibration data invalid or corrupted	error
`91-74`	Boost pressure low during rotation (hex 0x4A)	Boost pressure insufficient during rotation operation	error
`9175`	Vacuum valve stuck zone 1	Vacuum valve failed to open or close in zone 1	error
`9176`	Vacuum valve stuck zone 2	Vacuum valve failed to open or close in zone 2	error
`9177`	Vacuum valve stuck zone 3	Vacuum valve failed to open or close in zone 3	error
`91-84`	Zone 1 bad state in state machine	Zone 1 software state machine reached invalid state	error
`91-85`	Zone 2 bad state in state machine	Zone 2 software state machine reached invalid state	error
`91-86`	Zone 3 bad state in state machine	Zone 3 software state machine reached invalid state	error
`91-87`	Zone 4 bad state in state machine	Zone 4 software state machine reached invalid state	error
`91-88`	Zone 1 no new data timeout	Timeout waiting for new zone 1 pressure data	error
`91-89`	Zone 2 no new data timeout	Timeout waiting for new zone 2 pressure data	error
`91-90`	Zone 3 no new data timeout	Timeout waiting for new zone 3 pressure data	error
`91-91`	Zone 4 no new data timeout	Timeout waiting for new zone 4 pressure data	error
`91-92`	Bad zone in motor state machine	Invalid zone identifier in motor control state machine	error
`91-93`	Bad zone in no new data error	Invalid zone in no new data error condition	error
`91-96`	Zone 1 leak detected during leak test	Pressure leak detected in zone 1 during leak test procedure	error
`91-97`	Zone 2 leak detected during leak test	Pressure leak detected in zone 2 during leak test procedure	error
`91-98`	Zone 3 leak detected during leak test	Pressure leak detected in zone 3 during leak test procedure	error
`91-99`	Zone 1 pressure not achieved during leak test	Zone 1 failed to reach required pressure during leak test	error
`92`	ERR_BAD_ZONE	Bad zone in motor state machine	error
`92`	Bad zone in motor state machine	Invalid zone detected in motor control state machine	error
`92-1`	RS232 serial communication overflow warning	RS232 buffer overflow detected	info
`92 100`	Zone 2 not reaching pressure during leak test	Zone 2 fails to reach required pressure in diagnostic	error
`92 101`	Zone 3 not reaching pressure during leak test	Zone 3 fails to reach required pressure in diagnostic	error
`92 102`	Zone 1 pressure control failure during leak test	Zone 1 fails to maintain pressure during diagnostic	error
`92 103`	Zone 2 pressure control failure during leak test	Zone 2 fails to maintain pressure during diagnostic	error
`92 104`	Zone 3 pressure control failure during leak test	Zone 3 fails to maintain pressure during diagnostic	error
`92-112`	ERR_Z1_NO_CONTROL: zone 1 not able to reach setpoint	Zone 1 pressure fails to reach target setpoint	error
`92-113`	ERR_Z2_NO_CONTROL: zone 2 not able to reach setpoint	Zone 2 pressure fails to reach target setpoint	error
`92-114`	ERR_Z3_NO_CONTROL: zone 3 not able to reach setpoint	Zone 3 pressure fails to reach target setpoint	error
`92-115`	Zone 1 not within tolerance for 15 seconds	Zone 1 temperature out of tolerance for 15 seconds	error
`92-116`	Zone 2 not within tolerance for 15 seconds	Zone 2 temperature out of tolerance for 15 seconds	error
`92-117`	Zone 3 not within tolerance for 15 seconds	Zone 3 temperature out of tolerance for 15 seconds	error
`92-118`	Zone 1 not in safe limits	Zone 1 temperature exceeds safe operating limits	critical
`92-119`	Zone 2 not in safe limits	Zone 2 temperature exceeds safe operating limits	critical
`92-120`	Zone 3 not in safe limits	Zone 3 temperature exceeds safe operating limits	critical
`92-121`	Mode/hazard timeout	Mode or hazard timeout condition triggered	error
`92-130`	EEPROM busy timeout	EEPROM still busy after timeout	error
`92-131`	EEPROM bad address	EEPROM detected invalid address during access	error
`92 132`	EEPROM unknown error in initialization	EEPROM init failed with unknown error	error
`92-133`	EEPROM data verification failed	EEPROM data verification check failed	error
`92-134`	EEPROM data error Sector 1	EEPROM data error detected in sector 1	error
`92-135`	EEPROM data error Sector 2	EEPROM data error detected in sector 2	error
`92-136`	EEPROM data error Sector 3	EEPROM data error detected in sector 3	error
`92-137`	EEPROM data mismatch all sectors	EEPROM data mismatch across all sectors	error
`92-138`	EEPROM initialization failure	EEPROM failed to initialize	error
`92 139`	EEPROM test error 1	EEPROM self-test 1 failed	error
`92 140`	EEPROM test error 2	EEPROM self-test 2 failed	error
`92 141`	EEPROM test error 3	EEPROM self-test 3 failed	error
`92-142`	EEPROM test pass count error	EEPROM test pass count mismatch	error
`92/142 ERR_EE_TEST4`	EEPROM test pass count	EEPROM test execution	error
`92-144`	Safe state error code	System entered unsafe state	error
`92/144 ERR_SS_CODE`	Safe state error code (0x90)	Safe state machine failure	critical
`92-145`	ROM checksum failed	ROM checksum verification failed on startup	critical
`92/145 ERR_BAD_ROM_CHKSUM`	ROM checksum failed (0x91)	ROM integrity check failure	critical
`92-17`	SPI serial communication overflow warning	SPI buffer overflow detected	info
`92-18`	SPI bad beginning of frame warning	SPI frame received with invalid start delimiter	info
`92 19`	SPI bad cyclic redundancy check warning	CRC validation failed in SPI frame	info
`92-2`	RS232 bad beginning of frame warning	RS232 frame received with invalid start delimiter	info
`92-20`	SPI communication timeout warning	No SPI data received within timeout period	info
`92-21`	SPI bad message ID warning	SPI frame received with invalid message ID	info
`92-3`	RS232 bad CRC warning	RS232 frame received with incorrect checksum	info
`92-32`	5V power supply voltage low warning	5V supply voltage below threshold	info
`92-33`	5V power supply voltage high warning	5V supply voltage above threshold	info
`92-34`	15V power supply voltage low warning	15V supply voltage below threshold	info
`92-35`	15V power supply voltage high warning	15V supply voltage above threshold	info
`92-4`	RS232 communication timeout warning	No RS232 data received within timeout period	info
`92 48`	Timers not running	System timers failed to initialize or stopped	error
`92 49`	Test 1 error code reserved	Reserved test code triggered during self-test	error
`92-5`	RS232 bad message ID warning	RS232 frame received with invalid message ID	info
`92 50`	Test 2 error code reserved	Reserved test code triggered during self-test	error
`92 51`	Test 3 error code reserved	Reserved test code triggered during self-test	error
`92 52`	Test 4 error code reserved	Reserved test code triggered during self-test	error
`92 53`	Test 5 error code reserved	Reserved test code triggered during self-test	error
`92 54`	Test 6 error code reserved	Reserved test code triggered during self-test	error
`92 55`	Test 7 error code reserved	Reserved test code triggered during self-test	error
`92 56`	Test 8 error code reserved	Reserved test code triggered during self-test	error
`92 57`	Test 9 error code reserved	Reserved test code triggered during self-test	error
`92-64`	Blower failure	Blower motor or pressure system malfunction detected	error
`92 65`	Analog to digital converter failure	ATOD hardware error detected	error
`92-66`	Blower hazard condition	Unsafe blower operation detected	critical
`92 67`	Pressure high when pump valve off	High pressure detected while pump valve is off	error
`92 68`	Pressure out of range when pump valve on	Pump valve pressure outside normal range during operation	error
`92 70`	Bad calibration data zone 2	Zone 2 calibration data corrupted or invalid	error
`92 71`	Bad calibration data zone 3	Zone 3 calibration data corrupted or invalid	error
`92 72`	Bad calibration data zone 4	Zone 4 calibration data corrupted or invalid	error
`92 73`	Bad calibration data pump valve	Pump valve calibration data corrupted or invalid	error
`92 74`	Boost pressure low during rotation	Boost pressure falls below minimum during zone rotation	error
`92-75`	Vacuum valve stuck zone 1	Vacuum valve malfunction in zone 1	error
`92-76`	Vacuum valve stuck zone 2	Vacuum valve malfunction in zone 2	error
`92-77`	Vacuum valve stuck zone 3	Vacuum valve malfunction in zone 3	error
`92 84`	Zone 1 bad state machine state	State machine entered invalid state for zone 1	error
`92 85`	Zone 2 bad state machine state	State machine entered invalid state for zone 2	error
`92 86`	Zone 3 bad state machine state	State machine entered invalid state for zone 3	error
`92 87`	Zone 4 bad state machine state	State machine entered invalid state for zone 4	error
`92-88`	Zone 1 no new data timeout	No new sensor data received from zone 1 within timeout	error
`92-89`	Zone 2 no new data timeout	No new sensor data received from zone 2 within timeout	error
`92-90`	Zone 3 no new data timeout	No new sensor data received from zone 3 within timeout	error
`92-91`	Zone 4 no new data timeout	No new sensor data received from zone 4 within timeout	error
`92-92`	Bad zone in motor state machine	Invalid zone number detected in motor control state machine	error
`92-93`	Bad zone in no new data error	Invalid zone in timeout error handler	error
`92 96`	Zone 1 leak detected during leak test	Pressure leak detected in zone 1 during diagnostic	error
`92 97`	Zone 2 leak detected during leak test	Pressure leak detected in zone 2 during diagnostic	error
`92 98`	Zone 3 leak detected during leak test	Pressure leak detected in zone 3 during diagnostic	error
`92 99`	Zone 1 not reaching pressure during leak test	Zone 1 fails to reach required pressure in diagnostic	error
`93`	Bad zone in no new data error	Invalid zone in data timeout condition	error
`93`	ERR_BAD_ZONE2	Bad zone in no new data error	error
`93-1`	RS232 overflow	RS232 serial buffer overflow	info
`93-100`	Zone 2 pressure not reached during leak test	Z2 fails to reach setpoint pressure during initialization	error
`93/100 ERR_Z2_NO_PRESS`	Zone 2 not up to pressure during leak test	Zone 2 fails to reach setpoint during leak test	warning
`93-101`	Zone 3 pressure not reached during leak test	Z3 fails to reach setpoint pressure during initialization	error
`93/101 ERR_Z3_NO_PRESS`	Zone 3 not up to pressure during leak test	Zone 3 fails to reach setpoint during leak test	warning
`93-102`	Zone 1 pressure control failure during leak test	Z1 unable to maintain setpoint tolerance during test	error
`93/102 ERR_Z1_PRS_CTRL_FAIL`	Zone 1 failed pressure control during leak test	Zone 1 pressure control fails during leak test	error
`93-103`	Zone 2 pressure control failure during leak test	Z2 unable to maintain setpoint tolerance during test	error
`93/103 ERR_Z2_PRS_CTRL_FAIL`	Zone 2 failed pressure control during leak test	Zone 2 pressure control fails during leak test	error
`93-104`	Zone 3 pressure control failure during leak test	Z3 unable to maintain setpoint tolerance during test	error
`93/104 ERR_Z3_PRS_CTRL_FAIL`	Zone 3 failed pressure control during leak test	Zone 3 pressure control fails during leak test	error
`93-112`	ERR_Z1_NO_CONTROL: zone 1 not able to reach setpoint	Zone 1 pressure fails to reach target setpoint	error
`93/112 ERR_Z1_NO_CONTROL`	Zone 1 unable to reach setpoint	Zone 1 pressure control failure	error
`93-113`	ERR_Z2_NO_CONTROL: zone 2 not able to reach setpoint	Zone 2 pressure fails to reach target setpoint	error
`93/113 ERR_Z2_NO_CONTROL`	Zone 2 unable to reach setpoint	Zone 2 pressure control failure	error
`93-114`	ERR_Z3_NO_CONTROL: zone 3 not able to reach setpoint	Zone 3 pressure fails to reach target setpoint	error
`93/114 ERR_Z3_NO_CONTROL`	Zone 3 unable to reach setpoint	Zone 3 pressure control failure	error
`93-115`	Zone 1 pressure out of tolerance for 15 seconds	Z1 pressure outside tolerance band for sustained period	error
`93/115 ERR_Z1_NO_CONTROL2`	Zone 1 not in tolerance for 15 seconds	Zone 1 pressure outside tolerance for 15s	error
`93-116`	Zone 2 pressure out of tolerance for 15 seconds	Z2 pressure outside tolerance band for sustained period	error
`93/116 ERR_Z2_NO_CONTROL2`	Zone 2 not in tolerance for 15 seconds	Zone 2 pressure outside tolerance for 15s	error
`93-117`	ERR_Z3_NO_CONTROL2: zone 3 not in tolerance for 15 seconds	Zone 3 pressure out of tolerance for extended period	error
`93/117 ERR_Z3_NO_CONTROL2`	Zone 3 not in tolerance for 15 seconds	Zone 3 pressure outside tolerance for 15s	error
`93-118`	Zone 1 pressure outside safe limits	Z1 pressure exceeds or falls below safe operating range	critical
`93/118 ERR_Z1_NOT_SAFE`	Zone 1 not in safe pressure limits	Zone 1 pressure exceeds safe limits	critical
`93-119`	Zone 2 pressure outside safe limits	Z2 pressure exceeds or falls below safe operating range	critical
`93/119 ERR_Z2_NOT_SAFE`	Zone 2 not in safe pressure limits	Zone 2 pressure exceeds safe limits	critical
`93-120`	ERR_Z3_NOT_SAFE: zone 3 not in safe limits	Zone 3 pressure outside safe operating limits	critical
`93/120 ERR_Z3_NOT_SAFE`	Zone 3 not in safe pressure limits	Zone 3 pressure exceeds safe limits	critical
`93-121`	Mode/hazard timeout	Mode or hazard timeout condition triggered	error
`93-130`	EEPROM is still busy	EEPROM access timeout	critical
`93/130 ERR_EE_BUSY`	EEPROM still busy	EEPROM access timeout	error
`93-131`	EEPROM bad address	Invalid address access attempted	critical
`93/131 ERR_EE_BADADDR`	EEPROM bad address	Invalid EEPROM address access	error
`93-132`	EEPROM unknown error in initialization	EEPROM init failure with unknown cause	critical
`93/132 ERR_EE_UNKNOWN`	EEPROM error in initialization	EEPROM initialization failure	error
`93-133`	EEPROM data verification failed	Data read does not match written value	critical
`93/133 ERR_EE_DATA_VER`	EEPROM data verify fail	EEPROM data verification failed	error
`93-134`	EEPROM data error sector 1	Sector 1 data integrity failure	critical
`93/134 ERR_EE_S1ERROR`	EEPROM data error sector 1	Sector 1 data corruption	error
`93-135`	EEPROM data error sector 2	Sector 2 data integrity failure	critical
`93/135 ERR_EE_S2ERROR`	EEPROM data error sector 2	Sector 2 data corruption	error
`93-136`	EEPROM data error sector 3	Sector 3 data integrity failure	critical
`93/136 ERR_EE_S3ERROR`	EEPROM data error sector 3	Sector 3 data corruption	error
`93-137`	EEPROM data mismatch all sectors	All three sectors contain inconsistent data	critical
`93/137 ERR_EE_S123MISMATCH`	EEPROM data mismatch all sectors	All sector data mismatches	error
`93/138 ERR_EEPROM_INIT`	EEPROM initialization failure	EEPROM failed to initialize	error
`93/139 ERR_EE_TEST1`	EEPROM test error 1	EEPROM test 1 execution	error
`93/140 ERR_EE_TEST2`	EEPROM test error 2	EEPROM test 2 execution	error
`93/141 ERR_EE_TEST3`	EEPROM test error 3	EEPROM test 3 execution	error
`93/142 ERR_EE_TEST4`	EEPROM test pass count	EEPROM test execution	error
`93/144 ERR_SS_CODE`	Safe state error code (0x90)	Safe state machine failure	critical
`93/145 ERR_BAD_ROM_CHKSUM`	ROM checksum failed (0x91)	ROM integrity check failure	critical
`93-17`	SPI buffer overflow warning	Serial peripheral interface overflow condition	info
`93/17 ERR_SPI_OVERFLOW`	SPI overflow (warning only)	SPI buffer overflow	info
`93-18`	SPI bad begin-of-frame marker	Invalid SPI frame header detected	info
`93/18 ERR_SPI_BAD_BOF`	SPI bad beginning of frame (warning only)	Malformed SPI frame	info
`93-19`	SPI bad CRC checksum	Data checksum validation failed	info
`93/19 ERR_SPI_BAD_CRC`	SPI CRC error (warning only)	SPI checksum failure	info
`93/1 ERR_RS232_OVERFLOW`	RS232 serial overflow (warning only)	RS232 buffer overflow	info
`93-2`	RS232 bad beginning of frame	Invalid RS232 frame start detected	info
`93-20`	SPI communication timeout	No SPI response within timeout period	info
`93/20 ERR_SPI_TIMEOUT`	SPI timeout (warning only)	SPI communication timeout	info
`93-21`	SPI bad module ID	Unexpected module identifier in SPI message	info
`93/21 ERR_SPI_BAD_MID`	SPI bad message ID (warning only)	Invalid SPI message ID	info
`93/2 ERR_RS232_BAD_BOF`	RS232 bad beginning of frame (warning only)	Malformed RS232 frame	info
`93-3`	RS232 CRC error	RS232 frame checksum mismatch	info
`93-32`	5V power supply low	Detected 5V rail below acceptable level	warning
`93/32 ERR_5V_LO`	5V supply low (warning only)	5V supply voltage low	warning
`93-33`	5V power supply high	Detected 5V rail above acceptable level	warning
`93/33 ERR_5V_HI`	5V supply high (warning only)	5V supply voltage high	warning
`93-34`	15V power supply low	Detected 15V rail below acceptable level	warning
`93/34 ERR_15V_LO`	15V supply low (warning only)	15V supply voltage low	warning
`93-35`	15V power supply high	Detected 15V rail above acceptable level	warning
`93/35 ERR_15V_HI`	15V supply high (warning only)	15V supply voltage high	warning
`93/3 ERR_RS232_BAD_CRC`	RS232 CRC error (warning only)	RS232 checksum failure	info
`93-4`	RS232 timeout	RS232 frame reception timeout	info
`93-48`	System timers not running	Real-time timer failure detected during initialization	error
`93/48 ERR_TIMERS_NOT_RUNNING`	Timer function not running	Timers failed to start	error
`93-49`	Self-test error code 1 (reserved)	Test 1 execution failure	error
`93/49 ERR_TEST1`	Test 1 error code	Test 1 execution	error
`93/4 ERR_RS232_TIMEOUT`	RS232 timeout (warning only)	RS232 communication timeout	info
`93-5`	RS232 bad message ID	Unknown or invalid RS232 message ID received	info
`93-50`	Self-test error code 2 (reserved)	Test 2 execution failure	error
`93/50 ERR_TEST2`	Test 2 error code	Test 2 execution	error
`93-51`	Self-test error code 3 (reserved)	Test 3 execution failure	error
`93/51 ERR_TEST3`	Test 3 error code	Test 3 execution	error
`93-52`	Self-test error code 4 (reserved)	Test 4 execution failure	error
`93/52 ERR_TEST4`	Test 4 error code	Test 4 execution	error
`93-53`	Self-test error code 5 (reserved)	Test 5 execution failure	error
`93/53 ERR_TEST5`	Test 5 error code	Test 5 execution	error
`93-54`	Self-test error code 6 (reserved)	Test 6 execution failure	error
`93/54 ERR_TEST6`	Test 6 error code	Test 6 execution	error
`93-55`	Self-test error code 7 (reserved)	Test 7 execution failure	error
`93/55 ERR_TEST7`	Test 7 error code	Test 7 execution	error
`93-56`	Self-test error code 8 (reserved)	Test 8 execution failure	error
`93/56 ERR_TEST8`	Test 8 error code	Test 8 execution	error
`93-57`	Self-test error code 9 (reserved)	Test 9 execution failure	error
`93/57 ERR_TEST9`	Test 9 error code	Test 9 execution	error
`93/5 ERR_RS232_BAD_MID`	RS232 bad message ID (warning only)	Invalid RS232 message ID	info
`93-64`	Blower motor failure detected	Blower motor performance test failure	error
`93/64 ERR_BLOWER_FAIL`	Blower failure	Blower motor malfunction	error
`93-65`	Analog-to-digital converter failure	ADC self-test fails	critical
`93/65 ERR_ATOD_FAIL`	Analog-to-digital converter failure	ADC malfunction	error
`93-66`	Blower motor hazard condition	Blower safety check fails	critical
`93/66 ERR_BLOWER_HAZARD`	Blower hazard condition	Unsafe blower state detected	critical
`93-67`	High pressure with pump valve off	Pressure detected when pump valve OFF	error
`93/67 ERR_PV_PRS_HI`	High pressure when PV off	Pressure too high with pressure valve off	warning
`93-68`	Pump pressure out of range with valve on	Pressure outside expected range during pump operation	error
`93/68 ERR_PV_PRS_BAD`	Pressure out of range with PV on	Pressure reading out of range during PV operation	warning
`93-69`	Bad calibration data zone 1	Z1 calibration data corrupted or invalid	error
`93/69 ERR_BAD_CAL_Z1`	Bad calibration data zone 1 (0x45)	Zone 1 calibration data invalid	error
`93-70`	Bad calibration data zone 2	Z2 calibration data corrupted or invalid	error
`93/70 ERR_BAD_CAL_Z2`	Bad calibration data zone 2 (0x46)	Zone 2 calibration data invalid	error
`93-71`	Bad calibration data zone 3	Z3 calibration data corrupted or invalid	error
`93/71 ERR_BAD_CAL_Z3`	Bad calibration data zone 3 (0x47)	Zone 3 calibration data invalid	error
`93-72`	Bad calibration data zone 4	Z4 calibration data corrupted or invalid	error
`93/72 ERR_BAD_CAL_Z4`	Bad calibration data zone 4 (0x48)	Zone 4 calibration data invalid	error
`93-73`	Bad calibration data pump valve	Pump valve calibration data corrupted or invalid	error
`93/73 ERR_BAD_CAL_PV`	Bad calibration data PV (0x49)	PV calibration data invalid	error
`93-74`	Boost pressure low during rotation cycle	Boost bladder pressure below minimum during rotation	error
`93/74 ERR_BOOST_LOW_PRS`	Boost pressure low during rotation (0x4A)	Low boost pressure during bed rotation	error
`93-75`	Vacuum valve stuck zone 1	Vacuum valve malfunction in zone 1	error
`93-76`	Vacuum valve stuck zone 2	Vacuum valve malfunction in zone 2	error
`93-77`	Vacuum valve stuck zone 3	Vacuum valve malfunction in zone 3	error
`93-84`	Zone 1 state machine bad state	Invalid state in Z1 control state machine	error
`93/84 ERR_Z1_BAD_STATE`	Zone 1 bad state machine state	Zone 1 state machine error	error
`93-85`	Zone 2 state machine bad state	Invalid state in Z2 control state machine	error
`93/85 ERR_Z2_BAD_STATE`	Zone 2 bad state machine state	Zone 2 state machine error	error
`93-86`	Zone 3 state machine bad state	Invalid state in Z3 control state machine	error
`93/86 ERR_Z3_BAD_STATE`	Zone 3 bad state machine state	Zone 3 state machine error	error
`93-87`	Zone 4 state machine bad state	Invalid state in Z4 control state machine	error
`93/87 ERR_Z4_BAD_STATE`	Zone 4 bad state machine state	Zone 4 state machine error	error
`93-88`	Zone 1 data timeout	No new data from Z1 within timeout period	error
`93/88 ERR_Z1_NO_NEW_DATA`	Zone 1 timeout waiting for new data	Zone 1 data not received within timeout	error
`93-89`	Zone 2 data timeout	No new data from Z2 within timeout period	error
`93/89 ERR_Z2_NO_NEW_DATA`	Zone 2 timeout waiting for new data	Zone 2 data not received within timeout	error
`93-90`	Zone 3 data timeout	No new data from Z3 within timeout period	error
`93/90 ERR_Z3_NO_NEW_DATA`	Zone 3 timeout waiting for new data	Zone 3 data not received within timeout	error
`93-91`	Zone 4 data timeout	No new data from Z4 within timeout period	error
`93/91 ERR_Z4_NO_NEW_DATA`	Zone 4 timeout waiting for new data	Zone 4 data not received within timeout	error
`93-92`	Bad zone number in motor state machine	Invalid zone identifier in control logic	error
`93/92 ERR_BAD_ZONE`	Bad zone in motor state machine	Invalid zone detected in motor state machine	error
`93-93`	Bad zone in no new data error	Invalid zone detected during data timeout error	error
`93/93 ERR_BAD_ZONE2`	Bad zone in no new data error	Invalid zone in data timeout error	error
`93-96`	Zone 1 leak detected during leak test	Leak detected in Z1 during diagnostic leak test	error
`93/96 ERR_Z1_LEAK`	Zone 1 leak during leak test	Pressure drop detected during zone 1 leak test	warning
`93-97`	Zone 2 leak detected during leak test	Leak detected in Z2 during diagnostic leak test	error
`93/97 ERR_Z2_LEAK`	Zone 2 leak during leak test	Pressure drop detected during zone 2 leak test	warning
`93-98`	Zone 3 leak detected during leak test	Leak detected in Z3 during diagnostic leak test	error
`93/98 ERR_Z3_LEAK`	Zone 3 leak during leak test	Pressure drop detected during zone 3 leak test	warning
`93-99`	Zone 1 pressure not reached during leak test	Z1 fails to reach setpoint pressure during initialization	error
`93/99 ERR_Z1_NO_PRESS`	Zone 1 not up to pressure during leak test	Zone 1 fails to reach setpoint during leak test	warning
`94/100 ERR_Z2_NO_PRESS`	Zone 2 not up to pressure during leak test	Zone 2 fails to reach setpoint during leak test	warning
`94/101 ERR_Z3_NO_PRESS`	Zone 3 not up to pressure during leak test	Zone 3 fails to reach setpoint during leak test	warning
`94/102 ERR_Z1_PRS_CTRL_FAIL`	Zone 1 failed pressure control during leak test	Zone 1 pressure control fails during leak test	error
`94/103 ERR_Z2_PRS_CTRL_FAIL`	Zone 2 failed pressure control during leak test	Zone 2 pressure control fails during leak test	error
`94-112`	ERR_Z1_NO_CONTROL: zone 1 not able to reach setpoint	Zone 1 pressure fails to reach target setpoint	error
`94-112, 115, 118`	PBM Left Working zone pressure error	Left Working (Yellow) zone pressure out of specification on Pulmonary mattress	error
`94-113`	ERR_Z2_NO_CONTROL: zone 2 not able to reach setpoint	Zone 2 pressure fails to reach target setpoint	error
`94-113, 116, 119`	PBM Right Working zone pressure error	Right Working (Green) zone pressure out of specification on Pulmonary mattress	error
`94-114`	ERR_Z3_NO_CONTROL: zone 3 not able to reach setpoint	Zone 3 pressure fails to reach target setpoint	error
`94-114, 117, 120`	PBM Head zone pressure error	Head (Clear) zone pressure out of specification on Pulmonary mattress	error
`94-115`	ERR_Z1_NO_CONTROL2: zone 1 not in tolerance for 15 seconds	Zone 1 pressure out of tolerance for extended period	error
`94-116`	ERR_Z2_NO_CONTROL2: zone 2 not in tolerance for 15 seconds	Zone 2 pressure out of tolerance for extended period	error
`94-117`	ERR_Z3_NO_CONTROL2: zone 3 not in tolerance for 15 seconds	Zone 3 pressure out of tolerance for extended period	error
`94-118`	ERR_Z1_NOT_SAFE: zone 1 not in safe limits	Zone 1 pressure outside safe operating limits	critical
`94-119`	ERR_Z2_NOT_SAFE: zone 2 not in safe limits	Zone 2 pressure outside safe operating limits	critical
`94-120`	ERR_Z3_NOT_SAFE: zone 3 not in safe limits	Zone 3 pressure outside safe operating limits	critical
`94-121`	Mode/hazard timeout	Mode or hazard timeout condition triggered	error
`94/17 ERR_SPI_OVERFLOW`	SPI overflow (warning only)	SPI buffer overflow	info
`94/18 ERR_SPI_BAD_BOF`	SPI bad beginning of frame (warning only)	Malformed SPI frame	info
`94/19 ERR_SPI_BAD_CRC`	SPI CRC error (warning only)	SPI checksum failure	info
`94/1 ERR_RS232_OVERFLOW`	RS232 serial overflow (warning only)	RS232 buffer overflow	info
`94/20 ERR_SPI_TIMEOUT`	SPI timeout (warning only)	SPI communication timeout	info
`94/21 ERR_SPI_BAD_MID`	SPI bad message ID (warning only)	Invalid SPI message ID	info
`94/2 ERR_RS232_BAD_BOF`	RS232 bad beginning of frame (warning only)	Malformed RS232 frame	info
`94/32 ERR_5V_LO`	5V supply low (warning only)	5V supply voltage low	warning
`94/33 ERR_5V_HI`	5V supply high (warning only)	5V supply voltage high	warning
`94/34 ERR_15V_LO`	15V supply low (warning only)	15V supply voltage low	warning
`94/35 ERR_15V_HI`	15V supply high (warning only)	15V supply voltage high	warning
`94/3 ERR_RS232_BAD_CRC`	RS232 CRC error (warning only)	RS232 checksum failure	info
`94/48 ERR_TIMERS_NOT_RUNNING`	Timer function not running	Timers failed to start	error
`94/49 ERR_TEST1`	Test 1 error code	Test 1 execution	error
`94/4 ERR_RS232_TIMEOUT`	RS232 timeout (warning only)	RS232 communication timeout	info
`94/50 ERR_TEST2`	Test 2 error code	Test 2 execution	error
`94/51 ERR_TEST3`	Test 3 error code	Test 3 execution	error
`94/52 ERR_TEST4`	Test 4 error code	Test 4 execution	error
`94/53 ERR_TEST5`	Test 5 error code	Test 5 execution	error
`94/54 ERR_TEST6`	Test 6 error code	Test 6 execution	error
`94/55 ERR_TEST7`	Test 7 error code	Test 7 execution	error
`94/56 ERR_TEST8`	Test 8 error code	Test 8 execution	error
`94/57 ERR_TEST9`	Test 9 error code	Test 9 execution	error
`94/5 ERR_RS232_BAD_MID`	RS232 bad message ID (warning only)	Invalid RS232 message ID	info
`94/64 ERR_BLOWER_FAIL`	Blower failure	Blower motor malfunction	error
`94/65 ERR_ATOD_FAIL`	Analog-to-digital converter failure	ADC malfunction	error
`94/66 ERR_BLOWER_HAZARD`	Blower hazard condition	Unsafe blower state detected	critical
`94/67 ERR_PV_PRS_HI`	High pressure when PV off	Pressure too high with pressure valve off	warning
`94/68 ERR_PV_PRS_BAD`	Pressure out of range with PV on	Pressure reading out of range during PV operation	warning
`94/69 ERR_BAD_CAL_Z1`	Bad calibration data zone 1 (0x45)	Zone 1 calibration data invalid	error
`94/70 ERR_BAD_CAL_Z2`	Bad calibration data zone 2 (0x46)	Zone 2 calibration data invalid	error
`94/71 ERR_BAD_CAL_Z3`	Bad calibration data zone 3 (0x47)	Zone 3 calibration data invalid	error
`94/72 ERR_BAD_CAL_Z4`	Bad calibration data zone 4 (0x48)	Zone 4 calibration data invalid	error
`94/73 ERR_BAD_CAL_PV`	Bad calibration data PV (0x49)	PV calibration data invalid	error
`94/74 ERR_BOOST_LOW_PRS`	Boost pressure low during rotation (0x4A)	Low boost pressure during bed rotation	error
`94-75`	Vacuum valve stuck zone 1	Vacuum valve malfunction in zone 1	error
`94-76`	Vacuum valve stuck zone 2	Vacuum valve malfunction in zone 2	error
`94-77`	Vacuum valve stuck zone 3	Vacuum valve malfunction in zone 3	error
`94/84 ERR_Z1_BAD_STATE`	Zone 1 bad state machine state	Zone 1 state machine error	error
`94/85 ERR_Z2_BAD_STATE`	Zone 2 bad state machine state	Zone 2 state machine error	error
`94/86 ERR_Z3_BAD_STATE`	Zone 3 bad state machine state	Zone 3 state machine error	error
`94/87 ERR_Z4_BAD_STATE`	Zone 4 bad state machine state	Zone 4 state machine error	error
`94/88 ERR_Z1_NO_NEW_DATA`	Zone 1 timeout waiting for new data	Zone 1 data not received within timeout	error
`94/89 ERR_Z2_NO_NEW_DATA`	Zone 2 timeout waiting for new data	Zone 2 data not received within timeout	error
`94/90 ERR_Z3_NO_NEW_DATA`	Zone 3 timeout waiting for new data	Zone 3 data not received within timeout	error
`94/91 ERR_Z4_NO_NEW_DATA`	Zone 4 timeout waiting for new data	Zone 4 data not received within timeout	error
`94/92 ERR_BAD_ZONE`	Bad zone in motor state machine	Invalid zone detected in motor state machine	error
`94/93 ERR_BAD_ZONE2`	Bad zone in no new data error	Invalid zone in data timeout error	error
`94/96 ERR_Z1_LEAK`	Zone 1 leak during leak test	Pressure drop detected during zone 1 leak test	warning
`94/97 ERR_Z2_LEAK`	Zone 2 leak during leak test	Pressure drop detected during zone 2 leak test	warning
`94/98 ERR_Z3_LEAK`	Zone 3 leak during leak test	Pressure drop detected during zone 3 leak test	warning
`94/99 ERR_Z1_NO_PRESS`	Zone 1 not up to pressure during leak test	Zone 1 fails to reach setpoint during leak test	warning
`95:101 ERR_Z3_NO_PRESS`	Zone 3 (Thigh) not up to pressure during leak test	Pressure in zone 3 not achieved during automated leak test	error
`95:102 ERR_Z1_PRS_CTRL_FAIL`	Zone 1 (Chest) failed pressure control during leak test	Zone 1 pressure control failure detected during automated leak test	error
`95:103 ERR_Z2_PRS_CTRL_FAIL`	Zone 2 (Seat) failed pressure control during leak test	Zone 2 pressure control failure detected during automated leak test	error
`95:104 ERR_Z3_PRS_CTRL_FAIL`	Zone 3 (Thigh) failed pressure control during leak test	Zone 3 pressure control failure detected during automated leak test	error
`95-112`	Chest (Pulmonary) pressure error	Chest mattress zone pressure out of tolerance or cannot pressurize	warning
`95-112`	ERR_Z1_NO_CONTROL: zone 1 not able to reach setpoint	Zone 1 pressure fails to reach target setpoint	error
`95-112, 115, 118`	TTM Chest zone pressure error	Chest (White) zone pressure out of specification on Treatment mattress	error
`95:112 ERR_Z1_NO_CONTROL`	Zone 1 (Chest) not able to reach setpoint pressure	Chest bladder pressure cannot reach target setpoint during operation	error
`95-113`	ERR_Z2_NO_CONTROL: zone 2 not able to reach setpoint	Zone 2 pressure fails to reach target setpoint	error
`95-113, 116, 119`	TTM Seat zone pressure error	Seat (Red) zone pressure out of specification on Treatment mattress	error
`95:113 ERR_Z2_NO_CONTROL`	Zone 2 (Seat) not able to reach setpoint pressure	Seat bladder pressure cannot reach target setpoint during operation	error
`95-114`	ERR_Z3_NO_CONTROL: zone 3 not able to reach setpoint	Zone 3 pressure fails to reach target setpoint	error
`95-114, 117, 120`	TTM Thigh zone pressure error	Thigh (Black) zone pressure out of specification on Treatment mattress	error
`95:114 ERR_Z3_NO_CONTROL`	Zone 3 (Thigh) not able to reach setpoint pressure	Thigh bladder pressure cannot reach target setpoint during operation	error
`95-115`	ERR_Z1_NO_CONTROL2: zone 1 not in tolerance for 15 seconds	Zone 1 pressure out of tolerance for extended period	error
`95:115 ERR_Z1_NO_CONTROL2`	Zone 1 (Chest) not in tolerance for 15 seconds	Chest bladder pressure remains out of tolerance window for 15+ seconds	error
`95-116`	ERR_Z2_NO_CONTROL2: zone 2 not in tolerance for 15 seconds	Zone 2 pressure out of tolerance for extended period	error
`95:116 ERR_Z2_NO_CONTROL2`	Zone 2 (Seat) not in tolerance for 15 seconds	Seat bladder pressure remains out of tolerance window for 15+ seconds	error
`95-117`	ERR_Z3_NO_CONTROL2: zone 3 not in tolerance for 15 seconds	Zone 3 pressure out of tolerance for extended period	error
`95:117 ERR_Z3_NO_CONTROL2`	Zone 3 (Thigh) not in tolerance for 15 seconds	Thigh bladder pressure remains out of tolerance window for 15+ seconds	error
`95-118`	ERR_Z1_NOT_SAFE: zone 1 not in safe limits	Zone 1 pressure outside safe operating limits	critical
`95:118 ERR_Z1_NOT_SAFE`	Zone 1 (Chest) not in safe pressure limits	Chest bladder pressure exceeds safe operating limits	error
`95-119`	ERR_Z2_NOT_SAFE: zone 2 not in safe limits	Zone 2 pressure outside safe operating limits	critical
`95:119 ERR_Z2_NOT_SAFE`	Zone 2 (Seat) not in safe pressure limits	Seat bladder pressure exceeds safe operating limits	error
`95-120`	ERR_Z3_NOT_SAFE: zone 3 not in safe limits	Zone 3 pressure outside safe operating limits	critical
`95:120 ERR_Z3_NOT_SAFE`	Zone 3 (Thigh) not in safe pressure limits	Thigh bladder pressure exceeds safe operating limits	error
`95-121`	Mode/hazard timeout	Mode or hazard timeout condition triggered	error
`95:130 ERR_EE_BUSY`	EEPROM still busy, cannot access memory	EEPROM memory device does not respond to access request	critical
`95:131 ERR_EE_BADADDR`	EEPROM bad address error	Invalid memory address accessed during EEPROM operation	critical
`95:132 ERR_EE_UNKNOWN`	EEPROM error during initialization	Unknown error occurred when initializing EEPROM memory	critical
`95:133 ERR_EE_DATA_VER`	EEPROM data verification failed	Data integrity check failed during EEPROM read	critical
`95:134 ERR_EE_S1ERROR`	EEPROM data error in Sector 1	Read/write failure or corruption detected in EEPROM Sector 1	critical
`95:135 ERR_EE_S2ERROR`	EEPROM data error in Sector 2	Read/write failure or corruption detected in EEPROM Sector 2	critical
`95:136 ERR_EE_S3ERROR`	EEPROM data error in Sector 3	Read/write failure or corruption detected in EEPROM Sector 3	critical
`95:137 ERR_EE_S123MISMATCH`	EEPROM data mismatch across all sectors	Data verification mismatch detected across EEPROM Sectors 1, 2, and 3	critical
`95:138 ERR_EEPROM_INIT`	EEPROM initialization failure	EEPROM failed to initialize at system startup	critical
`95:139 ERR_EE_TEST1`	EEPROM test error 1	EEPROM self-test procedure detected a failure	error
`95:140 ERR_EE_TEST2`	EEPROM test error 2	EEPROM self-test procedure detected a failure	error
`95:141 ERR_EE_TEST3`	EEPROM test error 3	EEPROM self-test procedure detected a failure	error
`95:142 ERR_EE_TEST4`	EEPROM test pass count error	EEPROM test failed to complete required pass count	error
`95:144 ERR_SS_CODE`	Safe state error code (0x90)	System entered safe state due to detected error condition	error
`95:145 ERR_BAD_ROM_CHKSUM`	ROM checksum verification failed (0x91)	ROM firmware integrity check failed at startup	error
`95-75`	Vacuum valve stuck zone 1	Vacuum valve malfunction in zone 1	error
`95-76`	Vacuum valve stuck zone 2	Vacuum valve malfunction in zone 2	error
`95-77`	Vacuum valve stuck zone 3	Vacuum valve malfunction in zone 3	error
`96`	ERR_Z1_LEAK	Zone 1 leak detected during leak test	error
`96`	Zone 1 leak detected during leak test	Pressure loss detected in Zone 1 during leak test	error
`96-1`	ERR_RS232_OVERFLOW: RS232 communication buffer overflow	RS232 communication buffer overflow condition	info
`96-100`	ERR_Z2_NO_PRESS		error
`96-101`	ERR_Z3_NO_PRESS		error
`96-102`	ERR_Z1_PRS_CTRL_FAIL		error
`96/103 - ERR_Z2_PRS_CTRL_FAIL`	Zone 2 failed pressure control during leak test	Pressure control failure in zone 2 during system test	error
`96/104 - ERR_Z3_PRS_CTRL_FAIL`	Zone 3 failed pressure control during leak test	Pressure control failure in zone 3 during system test	error
`96/112 - ERR_Z1_NO_CONTROL`	Zone 1 unable to reach pressure setpoint	Zone 1 pressure regulation failure during operation	error
`96/113 - ERR_Z2_NO_CONTROL`	Zone 2 unable to reach pressure setpoint	Zone 2 pressure regulation failure during operation	error
`96/114 - ERR_Z3_NO_CONTROL`	Zone 3 unable to reach pressure setpoint	Zone 3 pressure regulation failure during operation	error
`96/115 - ERR_Z1_NO_CONTROL2`	Zone 1 pressure out of tolerance for 15 seconds	Zone 1 pressure remains outside control tolerance window	error
`96/116 - ERR_Z2_NO_CONTROL2`	Zone 2 pressure out of tolerance for 15 seconds	Zone 2 pressure remains outside control tolerance window	error
`96/117 - ERR_Z3_NO_CONTROL2`	Zone 3 pressure out of tolerance for 15 seconds	Zone 3 pressure remains outside control tolerance window	error
`96/118 - ERR_Z1_NOT_SAFE`	Zone 1 pressure outside safe operating limits	Zone 1 pressure exceeds or falls below safe limits	error
`96/119 - ERR_Z2_NOT_SAFE`	Zone 2 pressure outside safe operating limits	Zone 2 pressure exceeds or falls below safe limits	error
`96/120 - ERR_Z3_NOT_SAFE`	Zone 3 pressure outside safe operating limits	Zone 3 pressure exceeds or falls below safe limits	error
`96/121 - Mode/hazard timeout`	System operation mode or hazard detection timeout	Timeout during mode change or hazard assessment	error
`96/130 - ERR_EE_BUSY`	EEPROM device still processing previous command	EEPROM access timeout during read/write cycle	error
`96/131 - ERR_EE_BADADDR`	EEPROM address bus error or invalid address	Invalid memory address accessed during EEPROM operation	error
`96/132 - ERR_EE_UNKNOWN`	EEPROM initialization error unknown cause	EEPROM fails to initialize on startup	error
`96/133 - ERR_EE_DATA_VER`	EEPROM data verification failed	Stored data checksum or verification mismatch	error
`96/134 - ERR_EE_S1ERROR`	EEPROM Sector 1 data integrity error	Data corruption detected in sector 1 during verification	error
`96/135 - ERR_EE_S2ERROR`	EEPROM Sector 2 data integrity error	Data corruption detected in sector 2 during verification	error
`96/136 - ERR_EE_S3ERROR`	EEPROM Sector 3 data integrity error	Data corruption detected in sector 3 during verification	error
`96/137 - ERR_EE_S123MISMATCH`	EEPROM data mismatch across all sectors	Sector 1, 2, and 3 data do not match	critical
`96/138 - ERR_EEPROM_INIT`	EEPROM initialization sequence failed	EEPROM device fails to respond to initialization	critical
`96/139 - ERR_EE_TEST1`	EEPROM self-test 1 error	EEPROM built-in diagnostic test 1 fails	error
`96/140 - ERR_EE_TEST2`	EEPROM self-test 2 error	EEPROM built-in diagnostic test 2 fails	error
`96/141 - ERR_EE_TEST3`	EEPROM self-test 3 error	EEPROM built-in diagnostic test 3 fails	error
`96/142 - ERR_EE_TEST4`	EEPROM self-test pass count error	EEPROM test pass counter abnormal	error
`96/144 - ERR_SS_CODE`	Safe state error code (0x90)	System enters undefined safe state	error
`96/145 - ERR_BAD_ROM_CHKSUM`	ROM checksum validation failed (0x91)	ROM firmware integrity check fails on startup	critical
`96-17`	ERR_SPI_OVERFLOW: SPI communication buffer overflow	SPI communication buffer overflow condition	info
`96-17`	ERR_SPI_OVERFLOW		info
`96-18`	ERR_SPI_BAD_BOF: SPI bad beginning of frame	SPI communication framing error	info
`96-19`	ERR_SPI_BAD_CRC		info
`96-19`	ERR_SPI_BAD_CRC: SPI bad cyclic redundancy check	SPI communication checksum error	info
`96-2`	ERR_RS232_BAD_BOF: RS232 bad beginning of frame	RS232 communication framing error	info
`96-20`	ERR_SPI_TIMEOUT: SPI communication timeout	SPI communication timeout condition	info
`96-21`	ERR_SPI_BAD_MID: SPI bad message identifier	SPI communication format error	info
`96-3`	ERR_RS232_BAD_CRC: RS232 bad cyclic redundancy check	RS232 communication checksum error	info
`96-32`	ERR_5V_LO		info
`96-32`	ERR_5V_LO: 5V power supply low	5V supply voltage below threshold	info
`96-33`	ERR_5V_HI		info
`96-33`	ERR_5V_HI: 5V power supply high	5V supply voltage above threshold	info
`96-34`	ERR_15V_LO: 15V power supply low	15V supply voltage below threshold	info
`96-34`	ERR_15V_LO		info
`96-35`	ERR_15V_HI		info
`96-35`	ERR_15V_HI: 15V power supply high	15V supply voltage above threshold	info
`96-4`	ERR_RS232_TIMEOUT: RS232 communication timeout	RS232 communication timeout condition	info
`96-48`	ERR_TIMERS_NOT_RUNNING: System timers not running	System timer failure detected	error
`96-49`	ERR_TEST1		error
`96-49`	ERR_TEST1: Test 1 error code (reserved)	Test pattern 1 failure	error
`96-5`	ERR_RS232_BAD_MID: RS232 bad message identifier	RS232 communication format error	info
`96-50`	ERR_TEST2: Test 2 error code (reserved)	Test pattern 2 failure	error
`96-50`	ERR_TEST2		error
`96-51`	ERR_TEST3: Test 3 error code (reserved)	Test pattern 3 failure	error
`96-51`	ERR_TEST3		error
`96-52`	ERR_TEST4		error
`96-52`	ERR_TEST4: Test 4 error code (reserved)	Test pattern 4 failure	error
`96-53`	ERR_TEST5		error
`96-54`	ERR_TEST6		error
`96-55`	ERR_TEST7		error
`96-56`	ERR_TEST8		error
`96-57`	ERR_TEST9		error
`96-64`	ERR_BLOWER_FAIL		error
`96-65`	ERR_ATOD_FAIL		error
`96-66`	ERR_BLOWER_HAZARD		error
`96-67`	ERR_PV_PRS_HI		error
`96-68`	ERR_PV_PRS_BAD		error
`96-69`	ERR_BAD_CAL_Z1		error
`96-70`	ERR_BAD_CAL_Z2		error
`96-71`	ERR_BAD_CAL_Z3		error
`96-72`	ERR_BAD_CAL_Z4		error
`96-73`	ERR_BAD_CAL_PV		error
`96-74`	ERR_BOOST_LOW_PRS		error
`96-75`	Vacuum valve stuck zone 1		error
`96-76`	Vacuum valve stuck zone 2		error
`96-77`	Vacuum valve stuck zone 3		error
`96-84`	ERR_Z1_BAD_STATE		error
`96-85`	ERR_Z2_BAD_STATE		error
`96-86`	ERR_Z3_BAD_STATE		error
`96-87`	ERR_Z4_BAD_STATE		error
`96-88`	ERR_Z1_NO_NEW_DATA		error
`96-89`	ERR_Z2_NO_NEW_DATA		error
`96-90`	ERR_Z3_NO_NEW_DATA		error
`96-91`	ERR_Z4_NO_NEW_DATA		error
`96-92`	ERR_BAD_ZONE		error
`96-93`	ERR_BAD_ZONE2		error
`96-96`	ERR_Z1_LEAK		error
`96-97`	ERR_Z2_LEAK		error
`96-98`	ERR_Z3_LEAK		error
`96-99`	ERR_Z1_NO_PRESS		error
`97`	Zone 2 leak detected during leak test	Pressure loss detected in Zone 2 during leak test	error
`97`	ERR_Z2_LEAK	Zone 2 leak detected during leak test	error
`98`	ERR_Z3_LEAK	Zone 3 leak detected during leak test	error
`98`	Zone 3 leak detected during leak test	Pressure loss detected in Zone 3 during leak test	error
`99`	Zone 1 not up to pressure during leak test	Zone 1 pressure fails to reach setpoint during leak test	error
`99`	ERR_Z1_NO_PRESS	Zone 1 not up to pressure during leak test	error
`CAN Heartbeat Missing`	CAN bus communication heartbeat signal is absent	Expected CAN bus heartbeat not received within timeout period on Q Model bed	critical
`Communication`	Communication error between bed modules or control systems	Data transmission failure detected on Q Model bed communication network	error
`Deflate Bladder Error`	Bladder deflation command failed or deflation not detected	Deflation pneumatics do not deflate bladder or pressure not reduced	error
`EEPROM Data Corrupt/PCB Mismatch Error`	EEPROM data is corrupted or PCB configuration does not match stored parameters	Checksum mismatch or configuration ID mismatch detected during initialization	critical
`ERR_15V_HI`	15V supply high	15V power supply voltage above threshold	info
`ERR_15V_LO`	15V supply low	15V power supply voltage below threshold	info
`ERR_5V_HI`	5V supply high	5V power supply voltage above threshold	info
`ERR_5V_LO`	5V supply low	5V power supply voltage below threshold	info
`ERR_ATOD_FAIL`	Analog-to-digital converter failure	A/D conversion error detected	error
`ERR_BAD_CAL_PV`	Bad calibration data pump valve (0x49)	Pump valve calibration data invalid	error
`ERR_BAD_CAL_Z1`	Bad calibration data Zone 1 (0x45)	Zone 1 calibration data invalid	error
`ERR_BAD_CAL_Z2`	Bad calibration data Zone 2 (0x46)	Zone 2 calibration data invalid	error
`ERR_BAD_CAL_Z3`	Bad calibration data Zone 3 (0x47)	Zone 3 calibration data invalid	error
`ERR_BAD_CAL_Z4`	Bad calibration data Zone 4 (0x48)	Zone 4 calibration data invalid	error
`ERR_BAD_ROM_CHKSUM`	ROM checksum failed	Program ROM integrity check failure at startup	critical
`ERR_BAD_ROM_CHKSUM (TTM)`	ROM checksum failed (0x91)	ROM memory checksum verification fails	critical
`ERR_BAD_ZONE`	Bad zone in motor state machine	Invalid zone detected in motor state machine	error
`ERR_BAD_ZONE2`	Bad zone in no new data error	Invalid zone during data timeout error	error
`ERR_BLOWER_FAIL`	Blower failure	Blower subsystem malfunction during operation	error
`ERR_BLOWER_HAZARD`	Blower hazard condition detected	Unsafe blower condition detected	critical
`ERR_BOOST_LOW_PRS`	Boost pressure low during rotation	Boost pressure insufficient during zone rotation	warning
`ERR_EE_BADADDR`	EEPROM bad address	Invalid EEPROM address accessed	error
`ERR_EE_BADADDR (TTM)`	EEPROM bad address	Invalid EEPROM address access	error
`ERR_EE_BUSY`	EEPROM still busy	EEPROM access timeout or lock condition	error
`ERR_EE_BUSY (TTM)`	EEPROM still busy	EEPROM timeout or communication error	error
`ERR_EE_DATA_VER`	EEPROM data verify failure	EEPROM data checksum or integrity check failed	error
`ERR_EE_DATA_VER (TTM)`	EEPROM data verify failure	EEPROM data verification error	error
`ERR_EEPROM_INIT`	EEPROM initialization failure	EEPROM cannot be initialized at power-up	critical
`ERR_EEPROM_INIT (TTM)`	EEPROM initialization failure	EEPROM fails to initialize	error
`ERR_EE_S123MISMATCH`	EEPROM data mismatch all sectors	Data mismatch between redundant EEPROM sectors	critical
`ERR_EE_S123MISMATCH (TTM)`	EEPROM data mismatch all sectors	Data mismatch across all EEPROM sectors	error
`ERR_EE_S1ERROR`	EEPROM data error Sector 1	Data error detected in EEPROM sector 1	error
`ERR_EE_S1ERROR (TTM)`	EEPROM data error Sector 1	Data corruption in EEPROM Sector 1	error
`ERR_EE_S2ERROR`	EEPROM data error Sector 2	Data error detected in EEPROM sector 2	error
`ERR_EE_S2ERROR (TTM)`	EEPROM data error Sector 2	Data corruption in EEPROM Sector 2	error
`ERR_EE_S3ERROR`	EEPROM data error Sector 3	Data error detected in EEPROM sector 3	error
`ERR_EE_S3ERROR (TTM)`	EEPROM data error Sector 3	Data corruption in EEPROM Sector 3	error
`ERR_EE_TEST1`	EEPROM test error 1	EEPROM self-test 1 fails	error
`ERR_EE_TEST1 (TTM)`	EEPROM test error 1	EEPROM self-test 1 fails	error
`ERR_EE_TEST2`	EEPROM test error 2	EEPROM self-test 2 fails	error
`ERR_EE_TEST2 (TTM)`	EEPROM test error 2	EEPROM self-test 2 fails	error
`ERR_EE_TEST3`	EEPROM test error 3	EEPROM self-test 3 fails	error
`ERR_EE_TEST3 (TTM)`	EEPROM test error 3	EEPROM self-test 3 fails	error
`ERR_EE_TEST4`	EEPROM test pass count error	EEPROM test pass count failure	error
`ERR_EE_TEST4 (TTM)`	EEPROM test pass count error	EEPROM test pass count failure	error
`ERR_EE_UNKNOWN`	EEPROM error in initialization	EEPROM initialization routine failure	error
`ERR_EE_UNKNOWN (TTM)`	EEPROM error in initialization	EEPROM initialization failure	error
`ERR_PV_PRS_BAD`	Pressure out of range when PV is ON	Pneumatic valve on but pressure reading abnormal	warning
`ERR_PV_PRS_HI`	High pressure when PV is OFF	Pneumatic valve off but pressure detected	warning
`ERR_RS232_BAD_BOF`	RS232 bad beginning of frame	Invalid start-of-frame marker received	info
`ERR_RS232_BAD_CRC`	RS232 bad CRC	Checksum error in serial data frame	warning
`ERR_RS232_BAD_MID`	RS232 bad module ID	Unrecognized module ID in received message	info
`ERR_RS232_OVERFLOW`	RS232 communication overflow	Serial buffer overflow during data reception	info
`ERR_RS232_TIMEOUT`	RS232 communication timeout	No data received within expected time window	warning
`ERR_SPI_BAD_BOF`	SPI bad beginning of frame	Invalid frame start detected in SPI communication	info
`ERR_SPI_BAD_CRC`	SPI bad CRC	CRC check failure in SPI communication	info
`ERR_SPI_BAD_MID`	SPI bad module ID	Invalid module ID in SPI message	info
`ERR_SPI_OVERFLOW`	SPI communication overflow	SPI buffer overflow during communication	info
`ERR_SPI_TIMEOUT`	SPI communication timeout	No response received on SPI within timeout	info
`ERR_SS_CODE`	Safe state error code (0x90)	System enters safe state unexpectedly	warning
`ERR_SS_CODE (TTM)`	Safe state error code (0x90)	System enters safe state unexpectedly	warning
`ERR_TEST1`	Test 1 error code	TTM self-test 1 fails	warning
`ERR_TEST2`	Test 2 error code	TTM self-test 2 fails	warning
`ERR_TEST3`	Test 3 error code	TTM self-test 3 fails	warning
`ERR_TEST4`	Test 4 error code	Reserved test error condition	unknown
`ERR_TEST5`	Test 5 error code	Reserved test error condition	unknown
`ERR_TEST6`	Test 6 error code	Reserved test error condition	unknown
`ERR_TEST7`	Test 7 error code	Reserved test error condition	unknown
`ERR_TEST8`	Test 8 error code	Reserved test error condition	unknown
`ERR_TEST9`	Test 9 error code	Reserved test error condition	unknown
`ERR_TIMERS_NOT_RUNNING`	Timers not running	System timers fail to run	error
`ERR_Z1_BAD_STATE`	Bad state in Zone 1 state machine	Zone 1 controller enters undefined state	error
`ERR_Z1_LEAK`	Zone 1 leak during leak test	Pressure drop detected during zone 1 leak test	warning
`ERR_Z1_NO_CONTROL`	Zone 1 not able to reach setpoint	Zone 1 pressure control failure	error
`ERR_Z1_NO_CONTROL`	Zone 1 pressure control failure - Heel bladder	Zone 1 unable to reach pressure setpoint	error
`ERR_Z1_NO_CONTROL2`	Zone 1 pressure out of tolerance for 15 seconds	Zone 1 pressure outside tolerance window for 15 seconds	error
`ERR_Z1_NO_CONTROL2 (TTM)`	Zone 1 Chest not in tolerance for 15 seconds	Chest zone pressure out of tolerance for 15 seconds	error
`ERR_Z1_NO_CONTROL (TTM)`	Zone 1 Chest not able to reach setpoint	Chest zone pressure control failure	error
`ERR_Z1_NO_NEW_DATA`	Zone 1 timeout waiting for new data	No pressure data received from Zone 1 within timeout	error
`ERR_Z1_NO_PRESS`	Zone 1 not up to pressure during leak test	Zone 1 pressure below threshold in leak test	warning
`ERR_Z1_NOT_SAFE`	Zone 1 pressure outside safe limits	Zone 1 pressure exceeds maximum safe operating range	critical
`ERR_Z1_NOT_SAFE (TTM)`	Zone 1 Chest not in safe limits	Chest zone pressure exceeds safe limits	critical
`ERR_Z1_PRS_CTRL_FAIL`	Zone 1 pressure control failure during leak test	Zone 1 unable to maintain pressure in leak test	warning
`ERR_Z2_BAD_STATE`	Bad state in Zone 2 state machine	Zone 2 controller enters undefined state	error
`ERR_Z2_LEAK`	Zone 2 leak during leak test	Pressure drop detected during zone 2 leak test	warning
`ERR_Z2_NO_CONTROL`	Zone 2 pressure control failure - Retract bladder	Zone 2 unable to reach pressure setpoint	error
`ERR_Z2_NO_CONTROL`	Zone 2 not able to reach setpoint	Zone 2 pressure control failure	error
`ERR_Z2_NO_CONTROL2`	Zone 2 pressure out of tolerance for 15 seconds	Zone 2 pressure outside tolerance window for 15 seconds	error
`ERR_Z2_NO_CONTROL2 (TTM)`	Zone 2 Seat not in tolerance for 15 seconds	Seat zone pressure out of tolerance for 15 seconds	error
`ERR_Z2_NO_CONTROL (TTM)`	Zone 2 Seat not able to reach setpoint	Seat zone pressure control failure	error
`ERR_Z2_NO_NEW_DATA`	Zone 2 timeout waiting for new data	No pressure data received from Zone 2 within timeout	error
`ERR_Z2_NO_PRESS`	Zone 2 not up to pressure during leak test	Zone 2 pressure below threshold in leak test	warning
`ERR_Z2_NOT_SAFE`	Zone 2 pressure outside safe limits	Zone 2 pressure exceeds maximum safe operating range	critical
`ERR_Z2_NOT_SAFE (TTM)`	Zone 2 Seat not in safe limits	Seat zone pressure exceeds safe limits	critical
`ERR_Z2_PRS_CTRL_FAIL`	Zone 2 pressure control failure during leak test	Zone 2 unable to maintain pressure in leak test	warning
`ERR_Z3_BAD_STATE`	Bad state in Zone 3 state machine	Zone 3 controller enters undefined state	error
`ERR_Z3_LEAK`	Zone 3 leak during leak test	Pressure drop detected during zone 3 leak test	warning
`ERR_Z3_NO_CONTROL`	Zone 3 not able to reach setpoint	Zone 3 pressure control failure	error
`ERR_Z3_NO_CONTROL`	Zone 3 pressure control failure - Collapse bladder	Zone 3 unable to reach pressure setpoint	error
`ERR_Z3_NO_CONTROL2`	Zone 3 pressure out of tolerance for 15 seconds	Zone 3 pressure outside tolerance window for 15 seconds	error
`ERR_Z3_NO_CONTROL2 (TTM)`	Zone 3 Thigh not in tolerance for 15 seconds	Thigh zone pressure out of tolerance for 15 seconds	error
`ERR_Z3_NO_CONTROL (TTM)`	Zone 3 Thigh not able to reach setpoint	Thigh zone pressure control failure	error
`ERR_Z3_NO_NEW_DATA`	Zone 3 timeout waiting for new data	No pressure data received from Zone 3 within timeout	error
`ERR_Z3_NO_PRESS`	Zone 3 not up to pressure during leak test	Zone 3 pressure below threshold in leak test	warning
`ERR_Z3_NOT_SAFE`	Zone 3 pressure outside safe limits	Zone 3 pressure exceeds maximum safe operating range	critical
`ERR_Z3_NOT_SAFE (TTM)`	Zone 3 Thigh not in safe limits	Thigh zone pressure exceeds safe limits	critical
`ERR_Z3_PRS_CTRL_FAIL`	Zone 3 pressure control failure during leak test	Zone 3 unable to maintain pressure in leak test	warning
`ERR_Z3_PRS_CTRL_FAIL (TTM)`	Zone 3 failed pressure control during leak test	Zone 3 pressure control failure during leak test	error
`ERR_Z4_BAD_STATE`	Bad state in Zone 4 state machine	Zone 4 controller enters undefined state	error
`ERR_Z4_NO_NEW_DATA`	Zone 4 timeout waiting for new data	No pressure data received from Zone 4 within timeout	error
`Fault code (module.MSB.LSB format)`	System fault indicated by flash pattern on Service required indicator	Various hardware and system malfunctions trigger corresponding fault codes	unknown
`Flash 1-2 dots (¤¤ ¤)`	Main OFF Fault	Main contactor off control circuit failure	error
`Flash 1 dot (¤)`	Thermal Cutback	Controller operating in overtemperature condition	warning
`Flash 2-3 dots (¤¤ ¤¤¤)`	Main Cont FLTS	Main contactor control circuit fault	error
`Flash 2-4 dots (¤¤ ¤¤¤¤)`	Main ON Fault	Main contactor on control circuit failure	error
`Flash 2 dots (¤ ¤¤)`	Throttle Fault 1	Handle throttle input voltage out of specification	error
`Flash 3-1 dot (¤¤¤ ¤)`	PROC/Wiring Fault	Processor or internal wiring circuit fault	critical
`Flash 3-2 dots (¤¤¤ ¤¤)`	Brake ON Fault	Brake on control circuit failure	error
`Flash 3-3 dots (¤¤¤ ¤¤¤)`	Precharge Fault	Capacitor precharge circuit failure	error
`Flash 3-4 dots (¤¤¤ ¤¤¤¤)`	Brake OFF Fault	Brake off control circuit failure	error
`Flash 3-5 dots (¤¤¤ ¤¤¤¤¤)`	HPD	Hardware protection device triggered	error
`Flash 3 dots (¤ ¤¤¤)`	SPD Limit Pot Fault	Speed limit potentiometer circuit failure	error
`Flash 4-1 dot (¤¤¤¤ ¤)`	Current Sense Fault	Motor current sensing circuit failure	error
`Flash 4-2 dots (¤¤¤¤ ¤¤)`	HW Failsafe	Hardware failsafe circuit activated	error
`Flash 4-3 dots (¤¤¤¤ ¤¤¤)`	EEPROM Fault	Internal memory storage circuit failure	critical
`Flash 4-4 dots (¤¤¤¤ ¤¤¤¤)`	Power Section Fault	Power output section circuit failure	critical
`Flash 4 dots (¤ ¤¤¤¤)`	Low Battery Voltage	Battery voltage below minimum operating threshold	error
`Flash 5 dots (¤ ¤¤¤¤¤)`	Overvoltage	Battery voltage exceeds maximum operating threshold	error
`G0 113`	Column shorted during power-up	Pendant column circuit shorted on power-up	error
`G0 145`	Nurse Call relay logic failure	Relay circuit failure in pendant	error
`G0 33`	U1_High row selection logic failure	Pendant row selection circuit high failure	error
`G0 34`	U1_Low row selection logic failure	Pendant row selection circuit low failure	error
`G0 35`	U2_High row selection logic failure	Pendant row selection circuit high failure	error
`G0 36`	U2_Low row selection logic failure	Pendant row selection circuit low failure	error
`G049`	Col_Fault column shorted high or low	Pendant column circuit shorted	error
`G065`	PCM_Comm_Fail loss of communication UCM to PCM	Pendant to control module communication lost	error
`G113`	PWR_UP_COL_FAULT column shorted high/low/together	Pendant power-up column short	error
`G145`	RELAY_FAULT Nurse Call relay logic failure	Pendant relay circuit failure	error
`Heartbeat`	System heartbeat monitoring signal failure	Expected system heartbeat signal not received within timeout	critical
`Inflate Bladder Error`	Bladder inflation command failed or inflation not detected	Inflation pneumatics do not inflate bladder or pressure not achieved	error
`Over On Supervisory Voltage`	Supervisory voltage exceeds specified maximum	Over-voltage condition detected on Q Model bed supervisory power circuit	warning
`Over Supervisory off Voltage Monitor`	Off-state supervisory voltage monitoring indicates over-voltage condition	Over-voltage detected in supervisory circuit when system is off or in standby	warning
`Under Supervisory Voltage`	Supervisory voltage falls below specified minimum	Under-voltage condition detected on Q Model bed supervisory power circuit	warning
`Valve Current Over Error`	Valve control current exceeds maximum threshold	Measured current to valve actuator exceeds specified maximum	error
`Valve Current Under Error`	Valve control current falls below minimum threshold	Measured current to valve actuator falls below specified minimum	error

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ServiceForge knowledge base record. Field-unverified unless technicians confirmed it. A teaching summary of the record, not a service manual. Export 2026-10-14.