Infusion pumps · Plum family

ICU Medical Plum 360: troubleshooting and error codes

The ServiceForge knowledge base holds 137 documented symptoms for the ICU Medical Plum 360, with 197 ranked causes, 173 diagnostic checks with test points and expected values, and 164 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Alarm N101: No action timeout patient safety

Multiple variants of N101 timeout alarms when operator does not respond within specified time (15 seconds to 2 minutes). LCD displays 'No Action Alarm!' with context-specific prompt.

Ranked causes

1. Operator inaction timeout during standby selection (occasional)
2. Operator inaction during program confirmation (titration) (occasional)
3. Operator inaction after rate recalculation alert (occasional)
4. Operator inaction during stop line selection (occasional)
5. Operator inaction during start line selection (occasional)
6. Operator inaction on program confirmation (new program) (occasional)
7. Operator inaction with soft limit override pending (rare)
8. Operator inaction when both lines stopped (occasional)
9. Operator inaction when Line A stopped (occasional)
10. Operator inaction when Line B stopped (occasional)

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

Proximal occlusion test fails patient safety

Proximal occlusion test does not pass during PVT

Ranked causes

1. Closed proximal clamp (common)
2. Cassette not properly primed (occasional)
3. Defective cassette (occasional)
4. Dirty sensor pin (occasional)
5. Defective APP PWA (rare)

First check

Verify proximal clamp is open

Test point: Proximal clamp on administration set
Expected: Clamp fully open; fluid flows freely

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

Proximal occlusion test failure

Proximal occlusion alarm triggered during functional test procedure

Ranked causes

1. Closed proximal clamp (common)
2. Cassette not properly primed (common)
3. Defective cassette (occasional)
4. Dirty sensor pin (occasional)
5. Defective APP PWA (rare)

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

Alarm N160: Line B VTBI complete patient safety

LCD displays variants of 'Line B VTBI complete'. Line B delivery finished under different CCA or current CCA; action required.

Ranked causes

1. Line B piggyback delivery complete under prior CCA with no Line A delivery (occasional)
2. Line B complete under prior CCA with concurrent Line A delivery (occasional)
3. Line B piggyback delivery complete under current CCA with no Line A (occasional)
4. Line B concurrent delivery complete under current CCA (occasional)

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

Distal occlusion test fails patient safety

Distal occlusion test does not pass during PVT

Ranked causes

1. Cassette not properly primed (common)
2. Defective cassette (occasional)
3. Dirty sensor pin (occasional)
4. Defective APP PWA (rare)

First check

Re-prime cassette

Test point: Cassette inlet/outlet
Expected: No air bubbles visible; fluid flows smoothly

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

Distal occlusion test failure patient safety

Distal occlusion detection test fails during performance verification test

Ranked causes

1. Cassette not properly primed (common)
2. Defective cassette (common)
3. Dirty sensor pin (occasional)
4. Defective infusion mechanism (occasional)

First check

Verify cassette priming

Test point: Cassette fluid pathway
Expected: Cassette fully primed without air pockets

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

Alarm loudness test fails

Alarm loudness test does not pass during PVT

Ranked causes

1. Defective CPU (occasional)
2. Defective peripheral assembly (occasional)
3. Defective piezo alarm assembly (rare)

First check

Replace CPU PWA

Test point: CPU module
Expected: Alarm sounds at correct volume during test

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

Alarm loudness test failure

Piezo alarm does not produce expected volume level during functional test

Ranked causes

1. Defective CPU (rare)
2. Defective peripheral assembly (rare)
3. Defective piezo alarm assembly (rare)

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

Delivery accuracy test fails patient safety

Delivery accuracy test does not pass during PVT

Ranked causes

1. Set not properly primed (common)
2. Damaged or faulty cassette (occasional)
3. Defective infusion mechanism assembly (rare)

First check

Re-prime cassette

Test point: Cassette inlet/outlet
Expected: No air bubbles; fluid flows at proper rate

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

Delivery accuracy test failure

Infused volume does not match programmed dose during accuracy test

Ranked causes

1. Set not properly primed (common)
2. Damaged or faulty cassette (common)
3. Defective infusion mechanism assembly (occasional)

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

Distal air-in-line test fails patient safety

Distal air-in-line test does not pass during PVT

Ranked causes

1. Defective special cassette (common)
2. Dirty sensors (occasional)
3. Defective APP PWA (rare)

First check

Replace special cassette

Test point: Air-in-line sensor cassette slot
Expected: New cassette installed; test passes

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

Distal air-in-line test failure

Air detected in distal line during functional test procedure

Ranked causes

1. Defective special cassette (occasional)
2. Dirty sensors (occasional)
3. Defective APP PWA (rare)

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

Proximal air-in-line test fails patient safety

Proximal air-in-line test does not pass during PVT

Ranked causes

1. Defective special cassette (common)
2. Dirty sensors (occasional)
3. Defective APP PWA (rare)

First check

Replace special cassette

Test point: Air-in-line sensor cassette slot
Expected: New cassette installed; test passes

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

Proximal air-in-line test failure

Air detected in proximal line during functional test procedure

Ranked causes

1. Defective special cassette (occasional)
2. Dirty sensors (occasional)
3. Defective APP PWA (rare)

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

Proximal occlusion or air on Line A during delivery patient safety

Proximal occlusion or air detected on Line A during delivery using negative or peak detection algorithm.

Ranked causes

1. Kinked proximal Line A (common)
2. Closed clamp on Line A (occasional)
3. Excessive air creating backpressure (occasional)

First check

Inspect Line A for kinks

Test point: Line A tubing
Expected: Tubing straight, unkinked, not clamped

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

Unrestricted flow test fails patient safety

Unrestricted flow test does not pass during PVT

Ranked causes

1. Cassette not properly seated (common)
2. Defective cassette (occasional)
3. Defective or dirty valve pins (occasional)

First check

Reseat cassette

Test point: Cassette slot
Expected: Cassette fully seated

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

Unrestricted flow test failure patient safety

Unrestricted flow test fails; pump does not deliver fluid freely

Ranked causes

1. Cassette not properly seated (common)
2. Defective cassette (common)
3. Defective or dirty valve pins (occasional)

First check

Verify cassette seating

Test point: Cassette insertion area
Expected: Cassette fully inserted and locked

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

Alarm N161: Line A VTBI complete patient safety

LCD displays variants of 'VTBI Completed Line A'. Line A delivery finished under prior or current CCA; action required.

Ranked causes

1. Line A complete under prior CCA with concurrent delivery still active (occasional)
2. Line A delivery complete under current CCA (occasional)

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

Battery current out of range high voltage

Average battery current during operation exceeds safe limits; power supply or load circuit failure detected

Ranked causes

1. Power supply current limiting circuit failure or excessive device load (occasional)
2. Infusion mechanism draw excessive current (occasional)

First check

Power cycle infuser

Test point: Power switch
Expected: Device powers on; no over-current alarm after 30 seconds

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

Battery not detected high voltage

Battery not recognized by power supply circuit; loose connection, corrosion, or battery failure

Ranked causes

1. Loose battery connector or corrosion on battery terminals (common)
2. Defective battery or cable (occasional)

First check

Verify battery connector seating

Test point: Battery connector terminals
Expected: Connectors fully seated with no gaps; clean terminals

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

Battery trickle charge current high after full charge high voltage

Battery trickle charging current exceeds expected value after full charge is reached

Ranked causes

1. Defective or worn battery (common)
2. Power supply sensing circuit failure (occasional)

First check

Verify battery fully charged

Test point: Battery charge indicator display
Expected: Charge indicator shows full (typically 10 bars)

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

Cassette alarm test fails

Cassette alarm test does not pass during PVT

Ranked causes

1. Cassette not properly seated (common)
2. Defective cassette (occasional)

First check

Reseat cassette

Test point: Cassette seating
Expected: Cassette fully inserted and locked

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

Cassette test failure patient safety

Faulty cassette, proximal occlusion, or air detected during cassette integrity test at startup

Ranked causes

1. Defective or incompatible cassette (occasional)
2. Proximal occlusion or air in cassette (common)

First check

Run cassette test

Test point: Cassette with administration set installed
Expected: Cassette test passes without fault indication

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

Cassette test failure

Faulty cassette, proximal occlusion, or air detected during cassette integrity test. Alarm N251 displayed.

Ranked causes

1. Occluded proximal line (common)
2. Faulty cassette (occasional)

First check

Open and close cassette door to retry test

Test point: Cassette door
Expected: Test completes without error

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

Distal occlusion during delivery patient safety

Distal occlusion detected using peak detection algorithm during infusion delivery. Alarm N186 displayed.

Ranked causes

1. Kinked or occluded distal line (common)
2. N192 alarm active for 60+ seconds without pressure drop (occasional)

First check

Inspect distal IV line

Test point: Patient IV line and site
Expected: No kinks or occlusions visible

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

Infuser settings improperly configured

Device settings or drug library is improperly configured causing operation failures

Ranked causes

1. Non-recoverable software or drug library update failure (occasional)
2. Invalid network security certificates or WebConfig password loss (occasional)

First check

Verify reset completion and factory defaults applied

Test point: Biomed settings screen
Expected: Infuser settings restored to factory defaults, drug library restored

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

Proximal line occlusion not detected patient safety

Alarm does not sound or message does not flash when proximal tubing is clamped during infusion

Ranked causes

1. Occlusion sensor defective (common)
2. Alarm circuit malfunction (occasional)

First check

Select Line A

Test point: Line A selection
Expected: Line A selected on delivery screen

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

Proximal occlusion on Line A patient safety

Blockage detected on secondary port (Line A) during backpriming, cassette integrity test, or delivery

Ranked causes

1. Line clamped or syringe lacks free space (common)
2. Excessive air creating backpressure in cassette (occasional)

First check

Verify secondary line is unclamped

Test point: Secondary port (Line A)
Expected: Line unclamped and free to flow

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

Self-test fails

Device self-test fails to complete after power on/reset cycle

Ranked causes

1. Cassette not properly installed (common)
2. Defective CPU PWA (occasional)

First check

Inspect cassette seating and reinstall

Test point: Cassette slot
Expected: Cassette fully seated with no gaps

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

ADC test error during power-on self-test

ADC test failure during power-on initialization. Alarm E300 displayed.

Ranked causes

1. CPU or ADC circuit failure (rare)

First check

Power cycle the infuser

Test point: Power switch
Expected: Device powers on without ADC error

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

ADC test error during power-on self-test caution

Analog-to-Digital Converter test failure during infuser initialization

Ranked causes

1. CPU PWA failure or configuration error (occasional)

First check

Power cycle infuser

Test point: Power switch
Expected: Device powers off then on; self-test completes without error

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

Alarm N102: Programming not complete patient safety

LCD displays 'Programming not complete! Action required!' No operator input for 2 minutes after power-on or with cassette installed/program confirmed.

Ranked causes

1. Inaction during initial setup after power-on or program confirmation (occasional)

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

Alarm N103: Data cleared, reprogramming required patient safety

LCD displays 'Data was cleared. Re-enter all programming'. Retention memory (SEEP) corruption detected; delivery parameters lost.

Ranked causes

1. Retention memory (SEEP) corrupted (rare)

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

Alarm N104: Callback to Line B patient safety

LCD displays 'Callback to Line B! Silence audio to clear.' Line B infusion complete; alerts operator to check line or replenish.

Ranked causes

1. Line B VTBI reached 0 in piggyback/concurrent mode (common)

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

Alarm N105: Callback to Line A patient safety

LCD displays 'Callback to Line A! Silence audio to clear.' Line A infusion complete; alerts operator to check line or replenish.

Ranked causes

1. Line A VTBI reached 0 in multistep therapy (common)

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

Alarm N106: Bolus complete on Line B patient safety

LCD displays 'Bolus complete on Line B! Silence audio to clear.' Bolus delivery on Line B finished with nurse callback configured.

Ranked causes

1. Bolus delivery on Line B completed (common)

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

Alarm N107: Bolus complete on Line A patient safety

LCD displays 'Bolus complete on Line A! Silence audio to clear.' Bolus delivery on Line A finished with nurse callback configured.

Ranked causes

1. Bolus delivery on Line A completed (common)

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

Alarm N108: Cassette door opened during delayed start

LCD displays 'Door opened! Delayed Start! Close Door'. Cassette door was opened while infusion in Delayed Start state.

Ranked causes

1. Cassette door opened during Delayed Start state (occasional)

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

Alarm N56: Battery insufficient capacity

LCD displays 'Keep Plugged into AC! Service battery / replace pump.' Battery charge is depleted or failed.

Ranked causes

1. Battery does not have sufficient capacity (common)

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

Alarm N57: Battery or charger failure

LCD displays 'Keep Plugged into AC! Service battery / replace pump.' Battery or charger did not respond to charger voltage pin state.

Ranked causes

1. Battery or charger did not respond to VFLOAT pin state (common)

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

Alarm N58: Low battery level

LCD displays 'Low Battery! Plug into AC power!' Battery charge is low but not yet depleted.

Ranked causes

1. Battery charge level is low (common)

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

Alarm volume control not working

Volume control knob on rear of infuser does not change alarm loudness when rotated

Ranked causes

1. Volume potentiometer defective (occasional)

First check

Rotate volume control clockwise

Test point: Volume control knob on rear panel
Expected: Alarm loudness increases

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

Audio alarm failure (piezo) caution

Piezo alarm is off but sensed as on, or on but sensed as off. Alarm E301 displayed.

Ranked causes

1. Piezo alarm malfunction (rare)

First check

Power cycle and listen for alarm tone

Test point: Piezo speaker
Expected: Alarm sounds when triggered

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

Audio alarm piezo failure caution

Piezo speaker malfunction detected during self-test; alarms will not produce audible alert

Ranked causes

1. Defective piezo alarm speaker or CPU control circuit (occasional)

First check

Power cycle infuser

Test point: Power switch
Expected: Self-test completes; audio alarm sounds during test

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

Audio PAUSED button not muting alarm

Pressing AUDIO PAUSED does not silence alarm while message continues to flash on display

Ranked causes

1. Audio mute circuit defective (occasional)

First check

Press AUDIO PAUSED button during alarm

Test point: AUDIO PAUSED softkey
Expected: Alarm sound stops immediately; alarm message continues flashing on display

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

Battery ADC at high or low limit

Alarm E447 triggered; battery voltage measurement at the extreme edges of valid range

Ranked causes

1. Battery condition abnormal (occasional)

First check

Measure battery voltage

Test point: Battery terminals
Expected: Within specified range

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

Battery charge current high after 6 hours high voltage

After six hours of charging, battery charge current remains above expected value indicating charging circuit or battery failure

Ranked causes

1. Defective battery or power supply charging circuit (occasional)

First check

Monitor charge current during 6-hour charging cycle

Test point: Battery during AC charging in Standby
Expected: Charge current drops below expected threshold by 6 hours

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

Battery charge current too high after 6 hours

After 6 hours of charging, battery charge current is above expected value. Alarm E328 displayed.

Ranked causes

1. Defective battery or charging circuit (occasional)

First check

Monitor charging current at 6-hour mark

Test point: Battery charging circuit
Expected: Charge current within specification at 6 hours

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

Battery charging current failure

Charging current does not drop below end-of-charge threshold within 8 hours. Alarm E321 displayed.

Ranked causes

1. Defective battery or charging circuit (occasional)

First check

Discharge battery to 5 or fewer bars

Test point: Battery charge indicator
Expected: Indicator displays 5 bars or less

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

Battery charging current failure high voltage

Charging current does not drop to expected threshold within six to eight hour charging cycle

Ranked causes

1. Battery charging circuit failure or defective battery (occasional)

First check

Verify charging current drops after 8 hours AC charging

Test point: Battery during charging in Standby mode
Expected: Charging current below end-of-charge threshold after 8 hours

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

Battery current out of range (excessive draw)

Average battery current out of range or current limiting circuitry failure. Alarm E320 displayed.

Ranked causes

1. Power supply failure or hardware excessive current draw (rare)

First check

Power cycle the infuser

Test point: Power supply output
Expected: Device powers on without current error

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

Battery depleted

Infuser running on battery power with voltage below depleted battery threshold. Alarm N252 displayed.

Ranked causes

1. Battery voltage too low (common)

First check

Check power source connection

Test point: AC power inlet
Expected: AC power connected and stable

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

Battery depleted caution

Infuser running on battery power below depleted battery threshold; must be plugged into AC immediately

Ranked causes

1. Insufficient battery charge for continued operation (common)

First check

Verify AC power connection

Test point: Power inlet and mains outlet
Expected: AC power cable connected to live outlet

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

Battery not detected

Battery not detected due to loose connections, pinched conductors, corrosion, or battery failure. Alarm E326 displayed.

Ranked causes

1. Loose or corroded battery connection (common)

First check

Visually inspect battery connections

Test point: Battery terminals and connectors
Expected: Connections tight, no corrosion, no pinched wires

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

Battery over-voltage input asserted high voltage

Battery voltage regulation circuit detected over-voltage condition; charging circuit malfunction

Ranked causes

1. Charging circuit regulator failure or external over-voltage source (occasional)

First check

Power cycle infuser

Test point: Power switch
Expected: No over-voltage alarm after self-test

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

Battery over-voltage on input pin high voltage

Battery over-voltage input pin asserted. Defective charging circuit. Alarm E324 displayed.

Ranked causes

1. Charging circuit failure (rare)

First check

Power cycle the infuser

Test point: Charging circuit
Expected: Device powers on without over-voltage error

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

Battery trickle charge current too high

Battery fully charged but trickle charge current above expected value. Defective or worn battery. Alarm E323 displayed.

Ranked causes

1. Defective or worn battery or sensing circuit failure (occasional)

First check

Measure trickle charge current after full charge

Test point: Battery charging circuit
Expected: Trickle current within specified range

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

Battery voltage exceeds expected limit

Battery voltage greater than expected limit. Defective sensing circuit. Alarm E325 displayed.

Ranked causes

1. Defective battery or sensing circuit (occasional)

First check

Measure battery voltage at terminals

Test point: Battery terminals
Expected: Voltage within specification

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

Battery voltage greater than expected limit high voltage

Measured battery voltage exceeds safe operating maximum; sensing circuit or battery failure

Ranked causes

1. Battery defective or over-charged; sensing circuit failure (occasional)

First check

Verify battery voltage is within limits

Test point: Battery connector on power supply PWA
Expected: Voltage within nominal range (typically 10-12 V for lithium battery)

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

Battery zero reference ADC out of range high voltage

Battery voltage reference measurement circuit malfunction detected during self-test

Ranked causes

1. Power supply measurement circuit failure (occasional)

First check

Power cycle infuser

Test point: Power switch
Expected: Self-test passes; no ADC error on startup

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

More symptoms

Battery zero reference out of range
Broken distal pin detected during cassette test
Calibration: Delivery accuracy
Calibration: Display backlight intensity
Calibration: Display contrast
Cassette door opened during delivery
Cassette door opened during delivery
Cassette not properly installed
CPU timer 1 and 2 mismatch during self test
CPU timer and RTC mismatch during self test
CRC failure on drug library
Critical data verify error
Critical data verify error
Defective cassette
Display backlight failure
Display backlight failure
Display controller IC error
Display Controller IC error
Display not clear or pixels damaged
Display test fails
Display test failure
Distal air detected
Distal air exceeds threshold
Distal air sensor detects liquid with no cassette or sensor off
Distal air-in-line not detected
Distal occlusion detected
Distal occlusion with auto-restart configured
Electrical safety test fails
Electrical safety test failure
Error writing or reading SCP registers
Fatal software failures
Generic I/O valve motor error
Generic L/S valve motor error
Generic plunger motor error
Incorrect FLASH memory type on CE module
Infuser settings reset to factory defaults (software v15.1 and earlier)
Infuser settings reset to factory defaults (software v15.11 and later)
Key held down for 2+ consecutive minutes
Keypad buttons not responding
Keypad functional test failure
Keypad locked due to inadvertent input during delivery
Keypad locked during delivery interruption
Keypad test fails
LCD bias out of range during self test
Library key error
Network configuration failure
Network reset to factory defaults
Power hold signal stuck
Pressure sensor fails during delivery mode
Pressure sensor out of range while sensor off
Proximal air detected
Proximal air in lines exceeds threshold
Proximal air on Line A exceeds threshold
Proximal air on Line B exceeds threshold
Proximal air sensor self test fails or detects liquid with cassette removed
Proximal air-in-line not detected
Proximal occlusion on Line A during startup
Proximal occlusion on Line B
Proximal occlusion on Line B during delivery
Pump positioned too high above patient
Pump positioned too high above patient
Pumping does not resume after line unclamped
Real-time clock failure or invalid date/time
ROM checksum failure during self test
SCP register read/write error
SEEP block corrupted
SEEP calibration data CRC error
SEEP write verify read back error
Software attempting write to non-existent SEEP address
Software stack memory overflow
Unrestricted flow alarm
Unrestricted flow during cassette removal
Unrestricted flow from infusion mechanism
Unrestricted flow occurs
Volume infused and program delivery rate mismatch
Watchdog time limit out of range during power-on self test
Write with verify read back failure during power-on self test

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

Error codes

Code	Meaning	Trigger	Severity
`E300`	ADC test error during power-on self-test and initialization	Analog-to-digital converter test fails during device startup	error
`E300`	ADC test error during power-on self-test	Analog-to-Digital Converter test fails during device initialization	error
`E301`	Audio alarm (piezo) failure	Piezo speaker detection fails; sensor reports piezo off when on or on when off	error
`E301`	Audio alarm (piezo) failure detected	Piezo alarm state mismatch: piezo off but sensed on, or on but sensed off	error
`E302`	Display backlight failure (CCFT tube voltage out of range)	Backlight CCFT tube voltage not in expected operating range	error
`E302`	Display backlight (CCFT tube) failure	Backlight voltage measured outside expected operating range during self-test	error
`E320`	Battery current out of normal operating range	Average battery current measurement exceeds safe limits during operation	error
`E320`	Battery current out of range; excessive current draw detected	Average battery current exceeds limits or current limiting circuitry failure detected	error
`E321`	Battery charging current did not drop below threshold after 8 hours	Charging current remains above end-of-charge threshold after 8-hour charge cycle	error
`E321`	Battery charging current failure after long charge cycle	Charging current fails to drop below end-of-charge threshold within 8 hours or below 1 ampere within 6 hours	error
`E322`	Battery zero reference ADC out of correct range	Battery voltage reference measurement fails during power-on self-test	error
`E322`	Battery zero reference outside correct ADC count range	Battery voltage reference point fails ADC calibration check during power-up	error
`E323`	Battery trickle charge current above expected after full charge	Trickle charge current exceeds threshold after battery reaches full charge	error
`E323`	Battery trickle charge current above expected value when fully charged	Trickle charge current exceeds acceptable level after battery reaches full charge	error
`E324`	Battery over-voltage input pin asserted	Battery voltage regulation detects over-voltage condition on input monitoring pin	error
`E324`	Battery over-voltage input pin asserted	Battery over-voltage protection input pin has been triggered	critical
`E325`	Battery voltage exceeds expected operating limit	Measured battery voltage greater than upper specification limit	error
`E325`	Battery voltage measured above safe operating maximum	Measured battery voltage exceeds upper safety limit during power-on self-test	error
`E326`	Battery not detected by power supply circuit	Battery presence not recognized during power-on self-test; no connection detected	error
`E326`	Battery not detected by system	Battery voltage or presence signal not detected during startup or during operation	error
`E328`	Battery charge current too high after 6 hours of charging	Charging current measured at 6-hour mark exceeds expected value	error
`E328`	Battery charge current remains high after 6-hour charging	After 6 hours of charging, battery charge current measured above expected threshold	error
`E340`	SCP (SPI controller) register read/write error	Error detected when writing to or reading from SCP control registers during self-test	error
`E340`	Error reading or writing SPI controller registers during power-up	SPI controller register test fails during power-on CPU initialization	error
`E341`	Critical data verification error in infusion mechanism	Data structure in infusion mechanism or control system fails CRC/parity check	error
`E341`	Critical data verify error during power-on	Stored critical data fails checksum or integrity verification during self-test	error
`E342`	Display Controller IC communication error	Display controller integrated circuit fails to respond or communicate with CPU during self-test	error
`E342`	Display controller IC error or communication failure	Display controller integrated circuit detects internal error or fails communication test	error
`E343`	Distal air sensor detects liquid with no cassette or when sensor OFF	Air detector sees liquid when cassette not inserted or sensor is disabled	critical
`E343`	Distal air sensor detects liquid with no cassette or sensor off	Sensor detects liquid when cassette absent or sensor disabled	error
`E344`	Distal air sensor self test ongoing with cassette inserted or sensor out of range	Self test active while cassette present or sensor out of range	error
`E344`	Distal air sensor self test error	Self-diagnostic failing while cassette is inserted or sensor is out of range after power-on	critical
`E345`	Pressure sensor out of range while OFF	Pressure sensor reading out of spec when disabled	critical
`E345`	Pressure sensor out of range while sensor off	Sensor reports out-of-range values during disabled state	error
`E346`	Pressure sensor fails during delivery mode	Sensor malfunction detected while infuser actively delivering	error
`E346`	Pressure sensor fails during delivery	Pressure sensor malfunction while pump actively infusing	critical
`E347`	Watchdog timer limit exceeded during boot	CPU watchdog timer out of range during power-on self test	critical
`E347`	Watchdog time limit out of range during power-on self test	Watchdog timer measurement exceeds valid range at startup	error
`E378`	Generic I/O valve motor error	Motor fails to respond or stalls during operation	error
`E378`	Generic I/O valve motor error	I/O valve motor fails during control test	critical
`E379`	Generic L/S valve motor error	Load/sense valve motor fails during control	critical
`E379`	Generic L/S valve motor error	Load/supply valve motor fails or stalls	error
`E380`	Generic plunger motor error	Plunger motor fails to respond or stalls	error
`E380`	Generic plunger motor error	Plunger drive motor malfunction	critical
`E430`	Proximal air sensor detects liquid inappropriately	Air detector sees liquid with no cassette or when sensor disabled	critical
`E430`	Proximal air sensor detects liquid with no cassette or sensor off	Sensor detects liquid when cassette absent or sensor disabled	error
`E431`	Proximal air sensor self test fails or detects liquid with cassette removed	Self test ongoing with cassette inserted or liquid detected when cassette removed	error
`E431`	Proximal air sensor self test fails	Proximal sensor self-diagnostic fails or detects liquid when cassette removed	critical
`E432`	Pressure sensor out of range while disabled	Proximal pressure sensor reading out of spec when OFF	critical
`E432`	Pressure sensor out of range while sensor off	Sensor reports out-of-range during disabled state	error
`E433`	Proximal pressure sensor failed during delivery mode	Sensor failure detected while infuser in active delivery	error
`E433`	Proximal pressure sensor failed during delivery	Proximal pressure sensor malfunction while pump in delivery mode	critical
`E434`	Memory verify error during self test	Write and read-back mismatch during power-on self test	critical
`E434`	Write with verify read back failure during power-on self test	Memory write verification fails at startup diagnostics	error
`E435`	Real-time clock failure or invalid date/time during power-on self test	Current date or time invalid, or RTC malfunction detected	error
`E435`	Real-time clock or date/time invalid	RTC circuit fails or date/time value corrupt during boot self test	critical
`E436`	ROM checksum failure	ROM code CRC mismatch during power-on self test	critical
`E436`	ROM checksum failure during power-on self test	ROM data integrity check fails at startup	error
`E437`	Various fatal software failures	Multiple software error conditions detected	critical
`E437`	Fatal software failure	Multiple firmware errors or exception caught by watchdog	critical
`E438`	Software stack memory overflow	Stack pointer exceeded memory bounds	critical
`E438`	Software stack memory overflow	Software stack exceeds available memory space	error
`E439`	Key held or activated for 2+ consecutive minutes	Any keypad key continuously pressed for ≥2 minutes	error
`E439`	Key stuck or held for 2+ minutes	Any button continuously pressed for at least 2 consecutive minutes	critical
`E440`	Power hold signal stuck	Power control latch failed to release during shutdown sequence	critical
`E440`	Power hold signal stuck	Power circuit stuck in hold state during shutdown	critical
`E443`	LCD bias out of range during power-on self test	Display bias voltage outside valid range at startup	error
`E443`	LCD bias voltage out of range	Display bias supply voltage out of spec during power-on self test	critical
`E444`	CPU timer and RTC time mismatch	System timer and real-time clock readings differ during self test	critical
`E444`	CPU timer 2 and RTC measured times mismatch during power-on self test	CPU timer 2 and real-time clock measurements do not match	error
`E445`	Real-time clock time invalid during power-on self test	RTC time value out of valid range at startup	error
`E445`	Real-time clock time invalid during boot	RTC returns invalid date/time value during power-on self test	critical
`E446`	CPU timer 1 and 2 time mismatch	Two independent CPU timer outputs diverge during boot self test	critical
`E446`	CPU timer 1 and timer 2 measured times mismatch during power-on self test	Internal timer measurements do not match	error
`E447`	Battery ADC value at high or low limit of range	Battery voltage measurement at extreme edge of valid range	warning
`E447`	Battery ADC value at limit	Battery voltage reading at high or low threshold during self test	critical
`E448`	SEEP write verify error	SEEP (Storage Element Electrical Programmable) memory write-back verification fails	critical
`E448`	SEEP write verify read back error	Secondary EEPROM write verification fails	error
`E449`	SEEP calibration data CRC error	Secondary EEPROM calibration data integrity check fails	error
`E449`	SEEP calibration CRC error	Calibration data stored in SEEP fails integrity check	critical
`E451`	Volume and rate delivery mismatch	Calculated delivered volume does not match programmed delivery rate	critical
`E451`	Volume infused and program delivery rate mismatch	Measured infused volume does not match programmed rate	error
`E453`	SEEP block corrupted	Secondary EEPROM block data corrupted	error
`E453`	SEEP block corrupted	SEEP data block fails integrity check during memory test	critical
`E454`	Invalid SEEP write address	Software attempts to write to non-existent SEEP memory location	critical
`E454`	Software attempting write to non-existent SEEP address	Firmware attempts memory write outside valid address space	critical
`E455`	Incorrect FLASH non-volatile memory type on CE module	CE module contains incompatible or incorrect flash memory	error
`E455`	Incorrect FLASH memory type on CE module	FLASH chip on CE module does not match expected type or is missing	critical
`E456`	Library key error	Drug library encryption key validation fails	critical
`E456`	Library key error	Drug library key validation fails	error
`E457`	CRC failure on drug library	Drug library data integrity check fails	error
`E457`	Drug library CRC failure	Drug library data integrity check fails during startup	critical
`E458`	Broken distal pin detected	Distal cassette pin broken during self test or cassette insertion test	critical
`E458`	Broken distal pin detected during cassette test	Cassette self test detects broken or missing distal pin	error
`N101`	No action timeout alarm (multiple contexts)	Operator fails to respond within 15 seconds to 2 minutes to on-screen prompt	warning
`N101`	Timeout on titration confirmation with standby option	No operator action for 30 seconds; standby possible	warning
`N101`	Delivery start not completed	No operator action for 15 seconds after pressing START hardkey	warning
`N101`	Timeout on new program confirmation with standby option	No operator action for 2 minutes; standby possible	warning
`N101`	Timeout on Line A stop requiring clear or restart	No operator action for 2 minutes after Line A stopped	warning
`N102`	Programming not complete after power-on	No operator input for 2 minutes after power-on in Clinical mode	warning
`N102`	Programming not complete	No operator input for 2 minutes after power-on in Clinical mode or with cassette installed	warning
`N103`	Data cleared; reprogramming required	Retention memory (SEEP) corruption detected; autoclear activated	error
`N103`	Delivery parameters corrupted and cleared	Corruption of retained delivery parameters detected	error
`N104`	Callback alarm triggered on Line B completion	Line B VTBI reaches 0 with callback configured	info
`N104`	Callback to Line B	Line B VTBI reaches 0 (Loading Dose or multistep delivery step) with Callback configured	info
`N105`	Callback to Line A	Line A VTBI reaches 0 (Loading Dose or multistep delivery step) with Callback configured	info
`N105`	Callback alarm triggered on Line A completion	Line A VTBI reaches 0 with callback configured	info
`N106`	Bolus delivery complete on Line B	Bolus delivery completes on Line B with callback configured	info
`N106`	Bolus complete on Line B	Bolus delivery completes on Line B with Nurse Callback configured	info
`N107`	Bolus complete on Line A	Bolus delivery completes on Line A with Nurse Callback configured	info
`N107`	Bolus delivery complete on Line A	Bolus delivery completes on Line A with callback configured	info
`N108`	Cassette door opened during delayed start	Cassette door opened while infusion in Delayed Start	error
`N108`	Cassette door opened during Delayed Start	Cassette door opened while infusion in Delayed Start state	warning
`N160`	Line B VTBI completed	Line B delivery VTBI reaches 0 under prior or current CCA	info
`N160`	Line B VTBI complete in prior CCA with concurrent delivery	Line B delivery complete from different CCA; Line B concurrent	info
`N160`	Line B piggyback delivery complete	Line B piggyback delivery complete; no Line A programmed	info
`N161`	Line A VTBI complete in prior CCA	Line A delivery complete from different CCA	info
`N161`	Line A VTBI completed	Line A delivery VTBI reaches 0 under prior or current CCA	info
`N180`	Distal occlusion detected	Distal occlusion detected during backprime or cassette check	error
`N180`	Distal occlusion detected	Distal blockage while attempting backprime or during cassette check	warning
`N183`	Proximal occlusion detected on Line B	Proximal occlusion on Line B during cassette integrity test	error
`N183`	Proximal occlusion detected on Line B	Proximal blockage on secondary line during cassette integrity test (peak detection algorithm)	warning
`N184`	Proximal occlusion detected on Line A	Proximal blockage on primary line during backprime (negative detection algorithm)	warning
`N184`	Proximal occlusion detected on Line A	Proximal occlusion on Line A during backprime	error
`N185`	Proximal occlusion detected on Line A during cassette integrity test (peak detection)	Cassette integrity test detects proximal occlusion on Line A	warning
`N185`	Proximal occlusion on Line A at startup	Proximal blockage on primary line during cassette integrity test (peak detection algorithm) at startup	warning
`N186`	Distal occlusion during delivery with auto-restart exhausted	Distal blockage during delivery after maximum auto-restarts exhausted or auto-restart disabled; or N192 active for 60 seconds without pressure drop	error
`N186`	Distal occlusion detected during delivery after maximum auto-restarts	Peak detection algorithm detects distal occlusion and maximum auto-restarts have occurred or auto-restart is off	warning
`N187`	Pump mounted too high above patient causing distal occlusion	Negative detection algorithm detects distal occlusion due to pump height	warning
`N187`	Pump positioned too high above patient	Distal occlusion detected during delivery (negative detection algorithm)	warning
`N188`	Proximal occlusion detected on Line B during delivery	Proximal blockage on Line B during delivery (negative detection algorithm)	warning
`N188`	Proximal occlusion detected on Line B (negative detection algorithm)	Negative detection algorithm detects occlusion on Line B during delivery	warning
`N189`	Proximal occlusion detected on Line B (peak detection algorithm)	Peak detection algorithm detects occlusion on Line B during delivery	warning
`N189`	Proximal occlusion on Line B during delivery	Proximal blockage on Line B during delivery (peak detection algorithm)	warning
`N190`	Proximal occlusion detected on Line A during delivery	Proximal blockage on Line A during delivery (negative detection algorithm)	warning
`N190`	Proximal occlusion or air detected on Line A during delivery (negative detection)	Negative detection algorithm detects occlusion or air on Line A during infusion	warning
`N191`	Proximal occlusion or air detected on Line A during delivery (peak detection)	Peak detection algorithm detects occlusion or air on Line A during infusion	warning
`N191`	Proximal occlusion or air detected on Line A during delivery	Proximal blockage or air on Line A during delivery (peak detection algorithm)	warning
`N192`	Distal occlusion paused with auto-restart enabled	Distal occlusion detected (peak detection algorithm) with auto-restart enabled and max retries not yet reached	warning
`N192`	Distal occlusion detected; auto-restart configured and in progress	Peak detection algorithm detects distal occlusion with auto-restart enabled and retry attempts remaining	warning
`N230`	Cumulative proximal air from both lines exceeds threshold	Cumulative air detected at proximal sensor from Line A and Line B combined	warning
`N230`	Cumulative proximal air detected on Lines A and B	Cumulative proximal air from Line A and Line B combined exceeds air detection threshold	warning
`N231`	Proximal air bolus detected on Line B	Single air bolus at proximal sensor on Line B exceeds air detection threshold	warning
`N231`	Proximal air on Line B exceeds threshold	Single air bolus at proximal sensor in Line B exceeds detection threshold	warning
`N232`	Proximal air on Line A exceeds threshold	Single air bolus at proximal sensor in Line A exceeds detection threshold	warning
`N232`	Proximal air bolus detected on Line A	Single air bolus at proximal sensor on Line A exceeds air detection threshold	warning
`N233`	Cumulative air detected at distal sensor	Cumulative air at distal sensor exceeds air detection threshold	warning
`N233`	Cumulative distal air exceeds threshold	Cumulative air detected at distal sensor exceeds threshold	warning
`N234`	Single distal air bolus exceeds threshold	Single air bolus at distal sensor exceeds detection threshold	warning
`N234`	Single air bolus detected at distal sensor	Single air bolus at distal sensor exceeds air detection threshold	warning
`N250`	Cassette door opened during delivery	Cassette door opened while infusion is running	warning
`N250`	Cassette door opened during active infusion	Cassette door was opened while infusion delivery was running	info
`N251`	Cassette integrity test failed	Cassette test detected fault, occlusion, or air during startup integrity check	warning
`N251`	Cassette test failure detected	Faulty cassette, proximal occlusion, or air detected during cassette integrity test	error
`N252`	Battery voltage depleted below safe level	Infuser running on battery power with voltage below depleted threshold	critical
`N252`	Battery depleted; infuser on battery power with low voltage	Infuser running on battery and voltage drops below depleted battery threshold	critical
`N255`	Keypad locked; STOP or door open attempted during lock	Keypad was locked when STOP softkey or cassette door open event occurred during delivery	info
`N255`	Keypad locked during delivery interruption	Keypad lock active when [STOP] pressed or cassette door opened during delivery	info
`N56`	Battery insufficient capacity	Battery charge capacity is depleted or battery has failed	error
`N56`	Battery does not have sufficient capacity	Battery lacks adequate charge capacity	warning
`N57`	Battery or charger did not respond to charger voltage pin state	Charger voltage pin state (VFLOAT) not recognized	error
`N57`	Battery or charger VFLOAT pin state failure	Battery or charger did not respond to charger voltage pin state signal	error
`N58`	Low battery level	Battery charge level drops below operational threshold	warning
`N58`	Battery charge level is low	Low battery charge detected	warning

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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.