Hospital beds · InTouch Critical Care Bed family

Stryker FL27: troubleshooting and error codes

The ServiceForge knowledge base holds 49 documented symptoms for the Stryker FL27, with 89 ranked causes, 134 diagnostic checks with test points and expected values, and 210 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Unit does not power on high voltage

Bed is plugged in but receives no power; wall outlet has correct country voltage

Ranked causes

1. Wall outlet lacks correct country voltage (occasional)
2. Main power fuses open (common)
3. No voltage at transformer connection J11 (occasional)
4. No 30VAC output from transformer (occasional)
5. CPU/Power board fuse F1 open or board faulty (rare)

First check

Verify correct voltage at wall outlet

Test point: Wall outlet
Expected: Country voltage option present per CV table

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

Unit does not power on high voltage

Bed is plugged in but has no power; wall outlet has mains voltage

Ranked causes

1. Wall outlet has no correct country voltage (common)
2. Main power fuse open (occasional)
3. Transformer connection cable issue or 25A fuse failure (occasional)
4. Transformer assembly failure (rare)
5. Fuse F1 or CPU/Power board failure (rare)

First check

Verify bed is plugged in and outlet has correct country voltage

Test point: wall outlet
Expected: Country voltage option present at outlet

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

Cardiac chair positioning fails

Bed fails to achieve cardiac chair position (Fowler and foot positioning required)

Ranked causes

1. Fowler angle sensor miscalibration (common)
2. Foot section angle sensor miscalibration (common)
3. CPU/Power board failure (occasional)

First check

Verify fowler and foot section angles on display

Electric brake does not release caution

Brake motor fails to unlock bed when brake button pressed

Ranked causes

1. Manual brake set in brake position (common)
2. Brake motor failure (occasional)
3. Brake switch malfunction (occasional)

First check

Brake Not Set LED flashing and Brake Set LED OFF

2 more checks with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Foot extension does not lower caution

Foot section fails to move downward when control pressed; debris may block movement

Ranked causes

1. Debris in foot end traction sockets (common)
2. Motor stalled or needs recalibration (occasional)
3. Motor or CPU/Power board failure (occasional)

First check

Inspect foot end traction sockets for debris

Test point: foot end traction sockets
Expected: No debris present

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

Foot section does not raise

Foot lift motor fails to extend when up motion commanded in bed calibration mode

Ranked causes

1. Foot lift motor failure (common)
2. CPU/Power board failure (occasional)
3. Litter angle sensor miscalibration (occasional)

First check

Enter Bed Calibration menu via head siderail trend button

4 more checks with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Head section does not raise

Head lift motor fails to extend when up motion commanded in calibration mode

Ranked causes

1. Head lift motor failure (common)
2. CPU/Power board failure (occasional)
3. Litter angle sensor miscalibration (occasional)

First check

Enter Bed Calibration menu via head siderail

3 more checks with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Electric brake does not release caution

Brake pedal engaged but electric brake motor does not disengage when brake button pressed

Ranked causes

1. Brake pedal in brake position (correct operation) (common)
2. Brake motor or CPU/Power board failure (occasional)

First check

Verify Brake Not Set LED is flashing and Brake Set LED is OFF

Test point: bed control panel LEDs
Expected: Brake Not Set LED flashing; Brake Set LED OFF

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

Foot extension does not raise caution

Foot section fails to move upward when control pressed

Ranked causes

1. Motor stalled or needs recalibration (common)
2. Motor or CPU/Power board failure (occasional)

First check

Enter Bed Calibration menu and press foot up button; observe motor

Test point: foot extension motor
Expected: Motor runs upward

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

Foot lift section does not lower caution

Foot section fails to move downward when control pressed

Ranked causes

1. Motor stalled or needs recalibration (common)
2. Motor or CPU/Power board failure (occasional)

First check

Enter Bed Calibration menu and press reverse trend button; observe motor

Test point: foot lift motor
Expected: Motor runs downward

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

Foot lift section does not raise caution

Foot section fails to move upward when control pressed; may occur after other motion failures

Ranked causes

1. Motor stalled or needs recalibration (common)
2. Motor or CPU/Power board failure (occasional)

First check

Enter Bed Calibration menu and press trend button; observe motor

Test point: foot lift motor
Expected: Motor runs upward

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

Foot positioning does not lower

Foot positioning motor fails to retract when down motion commanded

Ranked causes

1. Foot motor failure (common)
2. CPU/Power board failure (occasional)

First check

24VDC at J1 (black pin 1, red pin 2) when down pressed

Foot positioning does not raise

Foot positioning motor fails to extend when up motion commanded

Ranked causes

1. Foot motor failure (common)
2. CPU/Power board failure (occasional)

First check

Motor runs in calibration mode

1 more check with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Foot section does not lower

Foot lift motor fails to retract when down motion commanded

Ranked causes

1. Foot lift motor failure (common)
2. CPU/Power board failure (occasional)

First check

24VDC at J6 (red pin 1, black pin 2) when reverse trend button pressed

Fowler section does not lower caution

Fowler section fails to move downward when control pressed

Ranked causes

1. Motor stalled or needs recalibration (common)
2. Motor or CPU/Power board failure (occasional)

First check

Enter Bed Calibration menu and press fowler down button; observe motor

Test point: fowler motor
Expected: Motor runs downward

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

Fowler section does not lower

Fowler motor fails to retract when down motion commanded

Ranked causes

1. Fowler motor failure (common)
2. CPU/Power board failure (occasional)

First check

24VDC at J5 (red pin 1, black pin 2) when down button pressed

Fowler section does not raise caution

Fowler section fails to move upward when control pressed

Ranked causes

1. Motor stalled or needs recalibration (common)
2. Motor or CPU/Power board failure (occasional)

First check

Enter Bed Calibration menu and press fowler up button; observe motor

Test point: fowler motor
Expected: Motor runs upward

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

Fowler section does not raise

Fowler motor fails to extend when up motion commanded

Ranked causes

1. Fowler motor failure (common)
2. CPU/Power board failure (occasional)

First check

Motor runs in calibration mode

1 more check with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Gatch section does not lower

Gatch motor fails to retract when down motion commanded

Ranked causes

1. Gatch motor failure (common)
2. CPU/Power board failure (occasional)

First check

24VDC at J3 (black pin 1, red pin 2) when down pressed

Gatch section does not lower caution

Gatch section fails to move downward when control pressed

Ranked causes

1. Motor stalled or needs recalibration (common)
2. Motor or CPU/Power board failure (occasional)

First check

Enter Bed Calibration menu and press gatch down button; observe motor

Test point: gatch motor
Expected: Motor runs downward

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

Gatch section does not raise

Gatch motor fails to extend when up motion commanded

Ranked causes

1. Gatch motor failure (common)
2. CPU/Power board failure (occasional)

First check

Motor runs in calibration mode

1 more check with pass and fail actions are in ServiceForge. Connect ServiceForge to your AI

Gatch section does not raise caution

Gatch section fails to move upward when control pressed

Ranked causes

1. Motor stalled or needs recalibration (common)
2. Motor or CPU/Power board failure (occasional)

First check

Enter Bed Calibration menu and press gatch up button; observe motor

Test point: gatch motor
Expected: Motor runs upward

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

Head lift section does not lower caution

Head section fails to move downward when control pressed

Ranked causes

1. Motor stalled or needs recalibration (common)
2. Motor or CPU/Power board failure (occasional)

First check

Enter Bed Calibration menu and press bed down button; observe motor

Test point: head lift motor
Expected: Motor runs downward

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

Head lift section does not raise caution

Head section fails to move upward when control pressed

Ranked causes

1. Motor stalled or needs recalibration (common)
2. Motor or CPU/Power board failure (occasional)

First check

Enter Bed Calibration menu and press bed up button; observe motor

Test point: head lift motor
Expected: Motor runs upward

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

Head section does not lower

Head lift motor fails to retract when down motion commanded

Ranked causes

1. Head lift motor failure (common)
2. CPU/Power board failure (occasional)

First check

24VDC at J4 (red pin 1, black pin 2) when bed down button pressed

HOB 300 position not achieved

Head of bed angle does not position correctly to 30 degrees or display inaccurate

Ranked causes

1. Fowler angle sensor miscalibration (common)
2. CPU/Power board failure (occasional)

First check

Verify fowler angle display accuracy

Reverse Trendelenburg positioning fails

Bed fails to tilt into Reverse Trendelenburg position or angle sensor inaccurate

Ranked causes

1. Trend angle sensor miscalibration (common)
2. CPU/Power board failure (occasional)

First check

Verify touch screen angle display accuracy

Trendelenburg positioning fails

Bed fails to tilt into Trendelenburg position or angle sensor inaccurate

Ranked causes

1. Trend angle sensor miscalibration (common)
2. CPU/Power board failure (occasional)

First check

Check touch screen trend angle display accuracy

Vascular positioning fails

Bed fails to achieve vascular position or multiple angle sensors inaccurate

Ranked causes

1. Multiple angle sensors miscalibrated (common)
2. CPU/Power board failure (occasional)

First check

Verify fowler, gatch, foot, trend display accuracy

Bed display shows non-zero angle readings at 16 inch height

Display readings fluctuate or do not maintain zero degrees when bed is at lowest position

Ranked causes

1. Incomplete or failed initial calibration requiring full recalibration cycle (common)

First check

Return to Configuration Screen

Test point: Footboard control panel Main Menu button
Expected: Configuration Screen displayed with Bed Calibration option

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

Bed does not raise in Reverse Trendelenburg position caution

Bed fails to raise in Reverse Trendelenburg (head-up) position when control pressed

Ranked causes

1. Bed needs recalibration or trend angle sensor failure (common)

First check

Verify trend angle display accuracy on touch screen

Test point: touch screen trend angle display
Expected: Accurate display of litter level

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bed does not raise in Trendelenburg position caution

Bed fails to raise in Trendelenburg (head-down) position when control pressed

Ranked causes

1. Bed needs recalibration or trend angle sensor failure (common)

First check

Verify trend angle display accuracy on touch screen

Test point: touch screen trend angle display
Expected: Accurate display of litter level

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bed Options configuration not applied

Selected bed options such as iBed, iAudio, iDoc are not properly configured or saved on the bed system.

Ranked causes

1. Bed Options not confirmed or saved (common)

First check

Verify Bed Options screen displays correct options

Test point: Bed Options screen
Expected: All applicable bed options visible and selectable

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Bed options not saved or incorrect after configuration

Selected bed options (iBed, iAudio, iDoc, Wi-Fi) not matching actual configuration or not persisting after setup

Ranked causes

1. Bed options not confirmed or power not cycled after selection (common)

First check

Press and hold HOB 30 button and BRAKE button simultaneously for 5 seconds

Test point: Head end control buttons
Expected: Bed Options screen displays with list of available options

4 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Calibration: Bed position and level sensors patient safety

Six-step bed calibration procedure to establish reference points for height, tilt, and levelness across all bed articulation positions

Ranked causes

1. Initial setup or sensor drift requiring recalibration (common)

First check

Flatten all bed articulations to reference position

Test point: Litter surface position
Expected: Completely flat

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

Calibration: Touch screen

Validation and adjustment of touch screen coordinate calibration to ensure accurate input detection

Ranked causes

1. Touch screen calibration drift (occasional)

First check

Press and hold stylus or finger on center of cross hair

Test point: Center of screen
Expected: Cross hair registers touch and moves to next location

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

Calibration: Touch screen caution

Procedure to recalibrate touch screen coordinates to ensure accurate touch recognition at all screen locations.

Ranked causes

1. Touch screen calibration initialization (unknown)

First check

Press and hold on upper center target

Test point: Upper center of screen
Expected: Target cross-hair responds to touch

4 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Cardiac chair position not achievable caution

Bed fails to reach cardiac chair configuration where fowler and foot sections coordinate

Ranked causes

1. Fowler or foot angle sensor needs recalibration or replacement (common)

First check

Verify fowler and foot section angle display accuracy on touch screen

Test point: touch screen fowler and foot angle displays
Expected: Accurate angle displays for both sections

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Full diagnostic menu not accessible or shows incomplete information

Full Diagnostic button from Configuration Screen does not open menu or displays incomplete data in Boards, Error Codes, Input States, Motors, Buttons Pressed, or Signal Values screens

Ranked causes

1. CPU board or touch screen communication fault (occasional)

First check

Press Full Diagnostic button from Configuration Screen

Test point: Configuration Screen
Expected: Full Diagnostic screen with menu items appears (Boards, Error Codes, Input States, Motors, Buttons Pressed, Signal Values)

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

Head of bed position angle inaccurate caution

Bed fails to achieve or maintain proper head of bed angle position

Ranked causes

1. Fowler angle sensor needs recalibration or replacement (common)

First check

Verify fowler angle display accuracy on touch screen

Test point: touch screen fowler angle display
Expected: Accurate angle display

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Isolibrium active error displayed on support surface patient safety

Support surface showing active error code in Isolibrium diagnostic menu; up to five errors displayed simultaneously ordered by priority

Ranked causes

1. Support surface sensor, pressure or mechanical fault (common)

First check

Access Isolibrium diagnostic menu and tap Active Errors tab

Test point: Service Diagnostic screen
Expected: List of up to five active errors displayed in priority order

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

Isolibrium error history not clearing or showing incorrect past errors

Error History tab shows old errors not being removed, or errors remaining after Clear Error History button pressed, or errors appearing that should not be logged

Ranked causes

1. Active error preventing history clear or active error re-logged on clear (occasional)

First check

Access Isolibrium diagnostic menu and tap Error History tab

Test point: Service Diagnostic screen
Expected: List of up to 10 errors displayed from oldest to newest

2 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Isolibrium support surface diagnostic test fails or shows incorrect results patient safety

Diagnostic test displays red X on one or more zones (Seat Left/Right, Back Left/Right, Turn Left/Right, Low Air Loss) indicating failure

Ranked causes

1. Support surface pressure system fault in specific zone (common)

First check

Review diagnostic test results for failed zones

Test point: Diagnostic Test Result screen
Expected: Green check marks for all zones; no red X marks

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

Serial number not entered or incorrect on bed

Bed serial number is missing, incomplete, or does not match the actual unit serial number.

Ranked causes

1. Serial number not saved during setup (occasional)

First check

Access Serial Number screen

Test point: Configuration menu
Expected: Bed Configuration - Serial Number screen displayed

4 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Serial number not saved or incorrect in configuration

Bed serial number not recording correctly or reverting after entry or confirmation

Ranked causes

1. Serial number not confirmed or power not cycled after entry (common)

First check

Press and hold HOB 30 button and Vascular Position button for 5 seconds

Test point: Head end control buttons
Expected: Bed Configuration - Serial Number screen displays

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

Touch screen does not respond to input

Touch screen is unresponsive to finger or stylus contact during operation.

Ranked causes

1. Touch screen calibration out of adjustment (common)

First check

Verify touch screen responds to stylus or finger at calibration target location

Test point: Center of target cross-hair on screen
Expected: Target cross-hair displayed and responsive to touch input

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Touch screen not responding to input

Touch screen does not respond to finger or stylus touches, requiring alternative access method to calibration

Ranked causes

1. Touch screen calibration out of alignment (common)

First check

Attempt to press HOB 300+, Brake and Drive buttons simultaneously

Test point: Footboard buttons
Expected: Touch screen calibration screen appears

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Vascular position not achievable caution

Bed fails to reach vascular configuration requiring coordinated movement of multiple sections

Ranked causes

1. Fowler, gatch, foot, or trend angle sensor needs recalibration or replacement (common)

First check

Verify fowler, gatch, foot, and trend angle display accuracy on touch screen

Test point: touch screen angle displays for all sections
Expected: Accurate angle displays on all sections

1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI

Wi-Fi configuration not updating

Wireless network settings not saving or wireless feature disabled after configuration changes

Ranked causes

1. Wi-Fi settings not saved and power not cycled (common)

First check

Verify network settings entered in Wi-Fi Configuration

Test point: Wi-Fi Configuration tab
Expected: All network parameters, authentication and security settings correctly entered

3 more checks with pass and fail actions, 1 corrective action, and part numbers are in ServiceForge. Connect ServiceForge to your AI

Error codes

Code	Meaning	Trigger	Severity
`0100`	Isolibrium sensor board communication failure	Sensor board not responding	error
`0101`	Isolibrium sensor board EEPROM corrupted	EEPROM memory corruption detected	critical
`0102`	Isolibrium sensor board not calibrated	Sensor board calibration missing or lost	error
`0200`	Isolibrium GUI CANopen heartbeat lost	Communication heartbeat timeout from GUI	error
`0400`	Isolibrium EEPROM corrupted	System EEPROM memory corruption	critical
`0500`	Isolibrium ambient temperature sensor failure	Temperature sensor not responding	error
`0501`	Isolibrium ambient temperature out of operating range	Temperature reading exceeds limits	warning
`0600`	Isolibrium pressure sensor failure	Pressure sensor not responding	error
`0601`	Isolibrium seat left pressure sensor failure	Left seat pressure sensor not responding	error
`0602`	Isolibrium seat right pressure sensor failure	Right seat pressure sensor not responding	error
`0603`	Isolibrium back left pressure sensor failure	Left back pressure sensor not responding	error
`0604`	Isolibrium back right pressure sensor failure	Right back pressure sensor not responding	error
`0605`	Isolibrium turn left pressure sensor failure	Left turn pressure sensor not responding	error
`0606`	Isolibrium turn right pressure sensor failure	Right turn pressure sensor not responding	error
`0700`	Isolibrium mattress zone overpressure	Mattress pressure exceeds maximum safe level	warning
`0701`	Isolibrium seat left zone overpressure	Left seat zone pressure exceeds maximum	warning
`0702`	Isolibrium seat right zone overpressure	Right seat zone pressure exceeds maximum	warning
`0703`	Isolibrium back left zone overpressure	Left back zone pressure exceeds maximum	warning
`0704`	Isolibrium back right zone overpressure	Right back zone pressure exceeds maximum	warning
`0800`	Isolibrium turn bladder overpressure	Turn bladder pressure exceeds maximum	warning
`0801`	Isolibrium turn left bladder overpressure	Left turn bladder pressure exceeds maximum	warning
`0802`	Isolibrium turn right bladder overpressure	Right turn bladder pressure exceeds maximum	warning
`0900`	Isolibrium compressor current not detected	Compressor not drawing current when on	error
`1000`	Isolibrium fan current not detected	Fan not drawing current when on	error
`1001`	Isolibrium fan 1 current not detected	Fan 1 not drawing current when on	error
`1002`	Isolibrium fan 2 current not detected	Fan 2 not drawing current when on	error
`1100`	Isolibrium valve not detected	Valve solenoid not responding	error
`1101`	Isolibrium seat left inflate valve not detected	Seat left inflate valve not responding	error
`1102`	Isolibrium seat left deflate valve not detected	Seat left deflate valve not responding	error
`1103`	Isolibrium seat right inflate valve not detected	Seat right inflate valve not responding	error
`1104`	Isolibrium seat right deflate valve not detected	Seat right deflate valve not responding	error
`1105`	Isolibrium back left inflate valve not detected	Back left inflate valve not responding	error
`1106`	Isolibrium back left deflate valve not detected	Back left deflate valve not responding	error
`1107`	Isolibrium back right inflate valve not detected	Back right inflate valve not responding	error
`1108`	Isolibrium back right deflate valve not detected	Back right deflate valve not responding	error
`1109`	Isolibrium turn left inflate valve not detected	Turn left inflate valve not responding	error
`1110`	Isolibrium turn left deflate valve not detected	Turn left deflate valve not responding	error
`1111`	Isolibrium turn right inflate valve not detected	Turn right inflate valve not responding	error
`1112`	Isolibrium turn right deflate valve not detected	Turn right deflate valve not responding	error
`1113`	Isolibrium intake valve not detected	Intake valve not responding	error
`1114`	Isolibrium exhaust valve not detected	Exhaust valve not responding	error
`1200`	Isolibrium compressor current when off	Compressor drawing current when system off	error
`1300`	Isolibrium fan current when off	Fan drawing current when system off	error
`1301`	Isolibrium fan 1 current when off	Fan 1 drawing current when system off	error
`1302`	Isolibrium fan 2 current when off	Fan 2 drawing current when system off	error
`1400`	Isolibrium valve current when off	Valve drawing current when system off	error
`1401`	Isolibrium seat left inflate valve current when off	Seat left inflate valve drawing current when off	error
`1402`	Isolibrium seat left deflate valve current when off	Seat left deflate valve drawing current when off	error
`1403`	Isolibrium seat right inflate valve current when off	Seat right inflate valve drawing current when off	error
`1404`	Isolibrium seat right deflate valve current when off	Seat right deflate valve drawing current when off	error
`1405`	Isolibrium back left inflate valve current when off	Back left inflate valve drawing current when off	error
`1406`	Isolibrium back left deflate valve current when off	Back left deflate valve drawing current when off	error
`1407`	Isolibrium back right inflate valve current when off	Back right inflate valve drawing current when off	error
`1408`	Isolibrium back right deflate valve current when off	Back right deflate valve drawing current when off	error
`1409`	Isolibrium turn left inflate valve current when off	Turn left inflate valve drawing current when off	error
`1410`	Isolibrium turn left deflate valve current when off	Turn left deflate valve drawing current when off	error
`1411`	Isolibrium turn right inflate valve current when off	Turn right inflate valve drawing current when off	error
`1412`	Isolibrium turn right deflate valve current when off	Turn right deflate valve drawing current when off	error
`1413`	Isolibrium intake valve current when off	Intake valve drawing current when off	error
`1414`	Isolibrium exhaust valve current when off	Exhaust valve drawing current when off	error
`1500`	Isolibrium mattress leak detected	Pressure loss detected in mattress	warning
`1501`	Isolibrium seat left zone leak detected	Pressure loss detected in left seat zone	warning
`1502`	Isolibrium seat right zone leak detected	Pressure loss detected in right seat zone	warning
`1503`	Isolibrium back left zone leak detected	Pressure loss detected in left back zone	warning
`1504`	Isolibrium back right zone leak detected	Pressure loss detected in right back zone	warning
`1505`	Isolibrium turn left bladder leak detected	Pressure loss detected in left turn bladder	warning
`1506`	Isolibrium turn right bladder leak detected	Pressure loss detected in right turn bladder	warning
`1600`	Isolibrium mattress deflate timeout	Mattress failed to deflate within time limit	error
`1601`	Isolibrium seat left deflate timeout	Left seat zone failed to deflate within time limit	error
`1602`	Isolibrium seat right deflate timeout	Right seat zone failed to deflate within time limit	error
`1603`	Isolibrium back left deflate timeout	Left back zone failed to deflate within time limit	error
`1604`	Isolibrium back right deflate timeout	Right back zone failed to deflate within time limit	error
`1605`	Isolibrium turn left deflate timeout	Left turn bladder failed to deflate within time limit	error
`1606`	Isolibrium turn right deflate timeout	Right turn bladder failed to deflate within time limit	error
`1700`	Isolibrium reference voltage hardware failure	Reference voltage circuit failure detected	critical
`1800`	Isolibrium weight input out of range	Weight sensor reading exceeds limits	warning
`1900`	Isolibrium HOB angle out of range for lateral rotation	Head of bed angle exceeds limits for rotation	error
`1901`	Isolibrium HOB angle out of range for turn assist	Head of bed angle exceeds limits for turn assist	error
`Atd Invalid Values`	Digital to analog converter is damaged	Power sensor board detecting invalid ADC readings	error
`Atd Invalid Values`	Digital to analog converter is damaged		error
`Bed Serial Number not available`	Bed serial number not configured	Serial number missing from device configuration	warning
`Brake motor time out`	Brake motor operation exceeded time limit	Motor running too long or wiring fault	error
`Brake motor time out`	Brake motor control timeout		error
`Brake pot bad range`	Potentiometer may be out of place or defective		error
`Brake pot bad range`	Brake potentiometer reading outside acceptable range	Potentiometer moved or disconnected	error
`Brake pot Disconnected or short`	Brake potentiometer circuit open or shorted	Potentiometer wiring fault or component failure	error
`Brake pot Disconnected or short`	Potentiometer wiring problem or component failure		error
`Brake unable to elec ctl`	Brake motor control electrical issue		error
`Brake unable to elec ctl`	Brake motor cannot be electronically controlled	Wiring or limit switch failure	error
`Calibration Error`	Previous calibration procedure failed	Incorrect calibration step execution	error
`Calibration Error`	Previous calibration step performed incorrectly		error
`Cmd WO safe from nurse SRH`	Head end board network communication error		error
`Cmd WO safe from nurse SRH`	Head end board network communication error	Control command without safe signal from head end board	warning
`Cmd WO safe from nurse SRL`	Left siderail outside board network communication error	Control command without safe signal from left siderail	warning
`Cmd WO safe from nurse SRL`	Left siderail outside board network communication error		error
`Cmd WO safe from nurse SRR`	Right siderail outside board network communication error		error
`Cmd WO safe from nurse SRR`	Right siderail outside board network communication error	Control command without safe signal from right siderail	warning
`Cmd WO safe from pat pend H`	Head optional pendant control network communication error	Control command without safe signal from pendant	warning
`Cmd WO safe from pat pend H`	Optional pendant control head network communication error		error
`Cmd WO safe from pat pend L`	Optional pendant control left network communication error		error
`Cmd WO safe from pat pend L`	Left optional pendant control network communication error	Control command without safe signal from pendant	warning
`Cmd WO safe from pat pend R`	Right optional pendant control network communication error	Control command without safe signal from pendant	warning
`Cmd WO safe from pat pend R`	Optional pendant control right network communication error		error
`Cmd WO safe from room`	Communication board network communication error		error
`Cmd WO safe from room`	Communication board network communication error	Control command without safe signal from room board	warning
`Cmd WO safe from TS`	Touch screen network communication error	Control command without safe signal from touch screen	warning
`Cmd WO safe from TS`	Touch screen network communication error		error
`DHCP Error: Unable to obtain IP Address`	Bed unable to obtain IP address from DHCP server	Network connection failure or DHCP misconfiguration	error
`Fixed IP Address duplication`	Static IP address conflict with another device on network	IP address already in use on network	warning
`Foot Left Load cell over range`	Left foot load cell reading exceeds maximum	Load cell receiving signal out of range	error
`Foot Left Load cell over range`	Foot left load cell or cabling damaged		error
`Foot Right Load cell over range`	Foot right load cell or cabling damaged		error
`Foot Right Load cell over range`	Right foot load cell reading exceeds maximum	Load cell receiving signal out of range	error
`GPIO Failure Init`	GPIO expansion chip initialization failed	PCA9555 chip not responding during startup	critical
`GPIO Failure Init`	PCA9555 GPIO expansion chip initialization failed		error
`GPIO Failure Read`	PCA9555 GPIO expansion chip read failure		error
`GPIO Failure Read`	GPIO expansion chip read operation failed	PCA9555 chip not responding to read command	critical
`GPIO Failure Write`	GPIO expansion chip write operation failed	PCA9555 chip not responding to write command	critical
`GPIO Failure Write`	PCA9555 GPIO expansion chip write failure		error
`Head Left Load cell over range`	Head left load cell or cabling damaged		error
`Head Left Load cell over range`	Left head load cell reading exceeds maximum	Load cell receiving signal out of range	error
`Head Right cell over range`	Right head load cell reading exceeds maximum	Load cell receiving signal out of range	error
`Head Right cell over range`	Head right load cell or cabling damaged		error
`Internal Communication Error`	Internal software communication failure	Software malfunction or data corruption	error
`IR Crosstalk detected`	Infrared crosstalk detected with iBed Locator system	IR signal interference from other modules	warning
`IR Interface Board not detected`	Room interface board not detected by system	Interface board hardware failure or disconnection	error
`Isolibrium active error (unspecified code)`	Support surface has detected a fault condition requiring attention	Support surface sensor, pressure system, mechanical or electrical fault	error
`Left IR Module not detected`	Left infrared module not detected by system	IR module hardware failure or disconnection	error
`Limit switch foot side rail left`	Left foot side rail limit switch failure	Limit switch not responding or wiring fault	error
`Limit switch foot side rail left`	Foot side rail left limit switch failure		error
`Limit switch foot side rail right`	Foot side rail right limit switch failure		error
`Limit switch foot side rail right`	Right foot side rail limit switch failure	Limit switch not responding or wiring fault	error
`Limit switch head side rail left`	Left head side rail limit switch failure	Limit switch not responding or wiring fault	error
`Limit switch head side rail left`	Head side rail left limit switch failure		error
`Limit switch head side rail right`	Head side rail right limit switch failure		error
`Limit switch head side rail right`	Right head side rail limit switch failure	Limit switch not responding or wiring fault	error
`Motor Brake Overheat`	Brake motor thermal overload condition	Motor running continuously without adequate cool-down	warning
`Motor Brake Overheat`	Brake motor has ran too long		warning
`Motor Brake Overload`	Brake motor drawing too many amps		error
`Motor Brake Overload`	Brake motor current exceeds maximum	Motor drawing excessive current	error
`Motor Foot Overheat`	Foot motor thermal overload condition	Motor running continuously without adequate cool-down	warning
`Motor Foot Overheat`	Foot motor has ran too long		warning
`Motor Foot Overload`	Foot motor drawing too many amps		error
`Motor Foot Overload`	Foot motor current exceeds maximum	Motor drawing excessive current	error
`Motor Gatch Overheat`	Gatch motor thermal overload condition	Motor running continuously without adequate cool-down	warning
`Motor Gatch Overheat`	Gatch motor has ran too long		warning
`Motor Gatch Overload`	Gatch motor drawing too many amps		error
`Motor Gatch Overload`	Gatch motor current exceeds maximum	Motor drawing excessive current	error
`Motor Head Overheat`	Head (Fowler) motor thermal overload condition	Motor running continuously without adequate cool-down	warning
`Motor Head Overheat`	Fowler motor has ran too long		warning
`Motor Head Overload`	Fowler motor drawing too many amps		error
`Motor Head Overload`	Head (Fowler) motor current exceeds maximum	Motor drawing excessive current	error
`Motor HL Foot Overheat`	Head-lift foot motor thermal overload condition	Motor running continuously without adequate cool-down	warning
`Motor HL Foot Overheat`	Foot lift motor has ran too long		warning
`Motor HL Foot Overload`	Foot lift motor drawing too many amps		error
`Motor HL Foot Overload`	Head-lift foot motor current exceeds maximum	Motor drawing excessive current	error
`Motor HL Head Overheat`	Head-lift head motor thermal overload condition	Motor running continuously without adequate cool-down	warning
`Motor HL Head Overheat`	Head lift motor has ran too long		warning
`Motor HL Head Overload`	Head lift motor drawing too many amps		error
`Motor HL Head Overload`	Head-lift head motor current exceeds maximum	Motor drawing excessive current	error
`Motor Zoom Overheat`	Zoom motor thermal overload condition	Motor running continuously without adequate cool-down	warning
`Motor Zoom Overheat`	Zoom motor has ran too long		warning
`Motor Zoom Overload`	Zoom motor drawing too many amps		error
`Motor Zoom Overload`	Zoom motor current exceeds maximum	Motor drawing excessive current	error
`No Error`	Angle sensor failure or calibration issue	Angle sensor malfunction or improper calibration	warning
`No Error`	Angle sensor failure or calibration issue		error
`One Motor Drive Short`	Short on drive motor detected		error
`One Motor Drive Short`	Short circuit detected on motor drive	Electrical short on drive motor circuit	error
`Right IR Module not detected`	Right infrared module not detected by system	IR module hardware failure or disconnection	error
`Safe WO Cmd from A1`	Network A1 safe signal without command wiring issue	Wiring defect on network A1	warning
`Safe WO Cmd from A1`	Network A1 has a wiring issue		error
`Safe WO Cmd from A2`	Network A2 has a wiring issue		error
`Safe WO Cmd from A2`	Network A2 safe signal without command wiring issue	Wiring defect on network A2	warning
`Safe WO Cmd from B1`	Network B1 safe signal without command wiring issue	Wiring defect on network B1	warning
`Safe WO Cmd from B1`	Network B1 has a wiring issue		error
`Safe WO Cmd from B2`	Network B2 has a wiring issue		error
`Safe WO Cmd from B2`	Network B2 safe signal without command wiring issue	Wiring defect on network B2	warning
`Scale ADC Error`	Scale analog-to-digital converter not calibrated	Scale chip ADC calibration missing	error
`Scale ADC Error`	Scale chip not calibrated		error
`Scale Chip Failure`	Control board is bad		error
`Scale Chip Failure`	Scale control chip failure	Scale chip not responding	error
`Tilt base over range`	Tilt sensor base reading out of acceptable range	Tilt sensor signal exceeds limits	error
`Tilt base over range`	Tilt sensor out of place or improperly assembled		error
`Tilt Error Base`	Base angle sensor is damaged		error
`Tilt Error Base`	Tilt sensor base angle measurement failure	Tilt sensor not responding	error
`Tilt Error Foot`	Tilt sensor foot angle measurement failure	Tilt sensor not responding	error
`Tilt Error Foot`	Foot angle sensor is damaged		error
`Tilt Error Gatch`	Gatch angle sensor is damaged		error
`Tilt Error Gatch`	Tilt sensor gatch angle measurement failure	Tilt sensor not responding	error
`Tilt Error Head`	Tilt sensor head angle measurement failure	Tilt sensor not responding	error
`Tilt Error Head`	Head angle sensor is damaged		error
`Tilt Error HiLo Foot`	HiLo foot angle sensor is damaged		error
`Tilt Error HiLo Foot`	Tilt sensor head-lift foot angle measurement failure	Tilt sensor not responding	error
`Tilt Error Trend`	Tilt sensor trend angle measurement failure	Tilt sensor not responding	error
`Tilt Error Trend`	Trend angle sensor is damaged		error
`Tilt foot over range`	Foot tilt sensor out of place or improperly assembled		error
`Tilt foot over range`	Tilt sensor foot reading out of acceptable range	Tilt sensor signal exceeds limits	error
`Tilt gatch over range`	Tilt sensor gatch reading out of acceptable range	Tilt sensor signal exceeds limits	error
`Tilt gatch over range`	Gatch tilt sensor out of place or improperly assembled		error
`Tilt head over range`	Head tilt sensor out of place or improperly assembled		error
`Tilt head over range`	Tilt sensor head reading out of acceptable range	Tilt sensor signal exceeds limits	error
`Tilt hiLo foot over range`	Tilt sensor head-lift foot reading out of acceptable range	Tilt sensor signal exceeds limits	error
`Tilt hiLo foot over range`	HiLo foot tilt sensor out of place or improperly assembled		error
`Tilt trend over range`	Trend tilt sensor out of place or improperly assembled		error
`Tilt trend over range`	Tilt sensor trend reading out of acceptable range	Tilt sensor signal exceeds limits	error
`Unable to connect to network`	Bed unable to connect to wireless network	Network connection failure	error
`Wi-Fi Settings corrupted`	Wi-Fi configuration data corrupted	Wi-Fi settings data corruption	error
`Wireless Adapter Failure`	Wi-Fi radio adapter not detected or not communicating	Wi-Fi adapter hardware failure or disconnection	error
`Zoom time out for switch`	Zoom motor switch response timeout	Zoom motor not responding to switch command	error
`Zoom time out for switch`	Zoom motor control timeout		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.