Infusion pumps · Plum family

ICU Medical Plum Duo: troubleshooting and error codes

The ServiceForge knowledge base holds 116 documented symptoms for the ICU Medical Plum Duo, with 166 ranked causes, 141 diagnostic checks with test points and expected values, and 93 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Upstream occlusion test fails caution

Upstream occlusion detection test does not complete successfully

Ranked causes

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

First check

Verify upstream clamp open

Test point: upstream clamp position
Expected: Clamp in open position

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

Downstream occlusion test fails caution

Downstream occlusion detection test does not complete successfully

Ranked causes

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

First check

Verify cassette priming

Test point: cassette fluid level
Expected: Cassette fully primed with no air bubbles

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

Pole clamp does not hold infusion pump securely on IV pole patient safety

Infusion pump slides on IV pole when clamp is fully tightened; pump not held firmly in place

Ranked causes

1. Rubber pad missing from pole clamp extrusion (occasional)
2. Plastic shaft tip damaged or missing (occasional)
3. Pole clamp assembly damaged or worn (occasional)
4. Pole clamp assembly loose on rear housing (common)

First check

Visually inspect pole clamp assembly attachment to rear housing

Test point: Pole clamp assembly fasteners
Expected: Securely attached, no movement or looseness

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

Unable to connect to ISMS

Infusion pump cannot establish connection to ICU Medical ISMS server

Ranked causes

1. Inappropriate device name configured (occasional)
2. ISMS port number not added to ISMS hostname or IP (occasional)
3. Server certificate not properly installed (occasional)
4. ISMS Host/IP mismatch or incorrect URL format (occasional)

First check

Verify device name setting

Test point: Pump configuration
Expected: Appropriate device name configured

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

Unrestricted flow patient safety

Infusion pump fails unrestricted flow test or fluid flows without pump delivering it

Ranked causes

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

First check

Verify cassette seating

Test point: cassette position
Expected: Cassette fully seated and locked

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

Ambient light sensor not adjusting screen brightness

Screen does not dim automatically when ambient light is blocked; brightness adjustment fails or does not respond within 2-5 seconds after covering sensor behind logo

Ranked causes

1. Backlight LED failure (occasional)
2. Bridge Flex Cable damage or disconnection (occasional)
3. Ambient light sensor (Power Button Assembly) malfunction (occasional)

First check

Verify screen brightness adjusts automatically when sensor is covered

Test point: Ambient light sensor location behind ICU Medical logo letter 'd'
Expected: Screen dims after 2-5 seconds when sensor is covered

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

Delivery accuracy test fails patient safety

Infusion pump does not deliver fluid at specified rate or volume

Ranked causes

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

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

Downstream air-in-line test fails caution

Downstream air detection does not function during PVT

Ranked causes

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

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

Power cord or retainer damaged high voltage

AC power cord, retainer, or strap shows signs of damage, arcing, burn marks, melting, bent prongs, or physical breakage

Ranked causes

1. Physical damage from handling or wear (occasional)
2. Retainer broken or missing parts (occasional)
3. Strap damage (occasional)

First check

Disconnect and power down pump

Test point: AC mains and POWER button
Expected: Device powered off after holding POWER button 5 seconds minimum

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

Pressure sensor or control pins damaged or contaminated

Line 1/2 pins, Upstream/Downstream pressure pins, or Inlet/Outlet valve pins are broken, chipped, or have dried fluid buildup around them; cassette presence diaphragm is damaged, torn, or missing

Ranked causes

1. Pin damage from impact or wear (rare)
2. Dried fluid accumulation on pins (common)
3. Cassette presence diaphragm torn, damaged, or missing (rare)

First check

Inspect all control pins for damage

Test point: Line 1/2 pins, Upstream/Downstream pressure pins, Inlet/Outlet valve pins
Expected: All pins intact, no breaks or chips

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

Unable to update Drug Library patient safety

Drug Library update fails, preventing configuration changes

Ranked causes

1. Public certificate not configured (common)
2. No connectivity to Lifeshield (occasional)
3. Persistent error requiring service (occasional)

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

Upstream air-in-line test fails caution

Upstream air detection does not function during PVT

Ranked causes

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

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

Web Config is not accessible

Unable to reach the Web Config interface for the infusion pump

Ranked causes

1. Infusion pump not in Biomed mode or Web Config disabled (common)
2. CE not connected over Wi-Fi (common)
3. Incorrect Web Config URL format (occasional)

First check

Verify pump is in Biomed mode and Web Config enabled

Test point: Pump display and configuration settings
Expected: Biomed mode active, Web Config enabled

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 fails

Speaker does not produce audible alarm at required loudness level

Ranked causes

1. Defective speaker assembly (rare)
2. Defective CPU (rare)

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

Artifacts on ECG, EMG, or EEG monitoring patient safety

Abnormal waveforms or signals appearing on voltage-sensing monitoring equipment (ECG, EMG, EEG machines) that vary at a rate associated with infusion rate

Ranked causes

1. Electronic noise generated by infusion pump (common)
2. Loose or defective connections to monitoring electrode (occasional)

First check

Verify if artifact is caused by infusion pump

Test point: Monitoring equipment display
Expected: Artifact disappears when infusion pump is not delivering fluid

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

Battery not charging when connected to AC power caution

Battery does not charge or charging is reduced when pump is plugged into AC mains power despite State of Charge being ≤95%.

Ranked causes

1. Battery temperature outside charging threshold (below 0°C or above 45°C) (occasional)
2. Reduced charging if battery temperature between 0°C and 10°C (occasional)

First check

Verify battery temperature is within safe charging range (0–45°C)

Test point: Battery thermal sensor or device ambient temperature
Expected: Battery temperature 0°C < T < 45°C for normal charging, or 0°C < T < 10°C for reduced charging

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

Cassette alarm test fails

Cassette alarm test does not complete successfully during PVT

Ranked causes

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

First check

Verify cassette seating

Test point: cassette position
Expected: Cassette fully seated

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

Cassette door damaged or stiff

Cassette door has chips or damage, or moves stiffly when opening/closing; door does not open smoothly

Ranked causes

1. Physical damage to cassette door (occasional)
2. Debris or dried fluid buildup on infusion mechanism (common)

First check

Inspect cassette door for chips or damage

Test point: Cassette door surface
Expected: No damage or chips present

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

Door lever damaged or stiff

Door lever has damage, is difficult to move, or does not operate smoothly between OPEN and CLOSED positions

Ranked causes

1. Physical damage to door lever (occasional)
2. Debris or dried fluid on lever mechanism (common)

First check

Inspect door lever for damage

Test point: Door lever body
Expected: No damage or cracks visible

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

Door roller does not spin smoothly or is obstructed

Door roller wheel does not spin freely with finger touch, is stuck, or has bent/loose mounting pin or retaining ring

Ranked causes

1. Door roller damaged or misaligned (occasional)
2. Retaining ring not seated or pin bent (occasional)

First check

Spin door roller by hand

Test point: Door roller wheel
Expected: Roller spins smoothly with light finger touch

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

Downstream occlusion pressure reading incorrect at 10 psi patient safety

Digital Pressure Meter does not display 10 psi (517 mmHg) ±3 psi tolerance when downstream occlusion alarm is triggered during second test at 10 psi setting

Ranked causes

1. Downstream pressure sensor calibration drift or malfunction at higher pressure (occasional)
2. Digital Pressure Meter accuracy degradation at elevated pressure (occasional)

First check

Adjust downstream pressure limit to 10 psi (517 mmHg) in Clinical Settings

Test point: Clinical Settings > Downstream Pressure > Occlusion Alarm Limit field
Expected: Pressure limit adjusted to 10 psi (517 mmHg)

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

Downstream occlusion pressure reading incorrect at 6 psi patient safety

Digital Pressure Meter does not display 6 psi (310 mmHg) ±3 psi tolerance when downstream occlusion alarm is triggered during test at 6 psi setting

Ranked causes

1. Downstream pressure sensor calibration drift or malfunction (occasional)
2. Digital Pressure Meter calibration error or malfunction (occasional)

First check

Verify downstream pressure limit is set to 6 psi (310 mmHg) in Clinical Settings

Test point: Clinical Settings > Downstream Pressure > Occlusion Alarm Limit field
Expected: Pressure limit displays as 6 psi (310 mmHg)

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

Drug library update activation delayed or not automatic patient safety

Updated drug library does not activate immediately or user is not prompted with activation option as expected

Ranked causes

1. Active therapy data present when update downloaded (common)
2. No active therapy data but update not auto-activated (rare)

First check

Verify presence of active therapy data

Test point: Therapy screen/programmed therapy status
Expected: No active or programmed therapy

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

Drug library update fails to download patient safety

Update process encounters an error and cannot complete; message displayed indicates whether pump remains usable

Ranked causes

1. Loss of connectivity to LifeShield (common)
2. Invalid or missing certificate information (occasional)

First check

Verify connectivity to LifeShield system

Test point: Wireless/network connection status
Expected: Connected to LifeShield

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

Electrical safety test high voltage

Verify leakage current, earth resistance, and chassis ground meet safety specifications using safety analyzer under normal and single fault conditions.

Ranked causes

1. Leakage current exceeds specification (unknown)
2. Chassis ground resistance exceeds specification (unknown)

First check

Connect safety analyzer to power source

Test point: Safety analyzer inlet
Expected: Safety analyzer powered on

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

Housing cracked, chipped, gouged, stained, or discolored patient safety

Front, rear, or bottom housing has visible cracks, chips, gouges, significant stains, or discoloration

Ranked causes

1. Physical impact or damage (occasional)
2. Staining or discoloration of housing (occasional)

First check

Inspect front and rear housings for structural damage

Test point: Front housing surface, rear housing surface
Expected: No cracks, chips, or gouges present

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

Loss of communication with LifeShield software patient safety

Plum Duo loses communication with LifeShield Infusion Safety Software Suite; LifeShield icon not displayed in pump

Ranked causes

1. Low Wi-Fi connectivity (common)
2. Disruption between LifeShield software and hospital network (occasional)

First check

Verify LifeShield icon display status in pump

Test point: pump display
Expected: LifeShield icon present when communication active

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

Self test fails

Infusion pump fails self-test on startup

Ranked causes

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

First check

Verify cassette installation

Test point: cassette seating
Expected: Cassette fully seated and locked

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

Suspected cybersecurity event or threat patient safety

External RF sources or electromagnetic disturbance affecting essential performance; wireless connectivity interrupted; battery icon shows incorrect charge/discharge status

Ranked causes

1. External RF sources or electromagnetic interference (unknown)
2. Wireless connectivity interference (occasional)

First check

Verify wireless connectivity recovery time

Test point: wireless connection status
Expected: connection restored within 50 seconds after interference removed

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

Unable to update infusion pump settings patient safety

Infusion pump settings update fails, preventing configuration changes

Ranked causes

1. No connectivity to Lifeshield (common)
2. Persistent error requiring service (occasional)

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

Worn or defective external pump components patient safety

Signs of wear on accessories, broken connections, damaged cable assemblies, or other defective external parts detected during inspection or after repair/cleaning

Ranked causes

1. Normal wear or age (common)
2. Damage from prior repair or cleaning (occasional)

First check

Visually inspect all external pump components

Test point: Accessories, connections, cable assemblies
Expected: No visible wear, breaks, damage, or defects

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

Abnormal operation in stacked or adjacent configuration patient safety

Infusion pump not operating normally when positioned adjacent to or stacked with other equipment

Ranked causes

1. Electromagnetic interference from adjacent/stacked equipment (unknown)

First check

Verify pump normal operation in stacked/adjacent configuration

Test point: Display, alarms, infusion delivery
Expected: All functions operate normally as in standalone configuration

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

AC ON LED not illuminated when connected to AC power

Green AC ON indicator LED does not light when infusion pump is plugged into AC mains power

Ranked causes

1. CPU PWA defective (rare)

First check

Connect power cord to AC mains and observe AC ON LED status

Test point: AC ON LED on infusion pump front panel
Expected: Green LED illuminated steadily when plugged into AC power

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

Alarm condition occurs during self test patient safety

Alarm condition triggered during SYSTEM SELF TEST IN PROGRESS execution

Ranked causes

1. Unspecified self test failure (unknown)

First check

Cycle power and repeat self test

Test point: Device power and self test function
Expected: Self test completes without alarm

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

ALS driver communication failure

Alert E462 displays; communication failure with ALS driver detected

Ranked causes

1. ALS driver communication failure (unknown)

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

Battery communication lost caution

Battery alert E465 displays; communication to battery has been lost

Ranked causes

1. Battery communication lost (occasional)

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

Battery has reduced capacity patient safety

Replace Battery condition registered, BATTERY NEEDS SERVICE alarm appears, audio indicator activates and persists over power cycles

Ranked causes

1. Battery degradation beyond acceptable threshold (common)

First check

Verify battery charge level

Test point: Battery display
Expected: 100% charge

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

Battery icon displays incorrect charge or discharge status

Battery charge level indicator shows inaccurate status

Ranked causes

1. Electromagnetic interference affecting battery indicator (occasional)

First check

Monitor battery indicator recovery time

Test point: Battery icon display
Expected: Correct battery status displayed within 6 seconds after interference removed

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

Battery leakage or degradation during extended storage caution

Battery may leak or degrade if pump stored for extended period with battery installed.

Ranked causes

1. Battery left installed in stored pump over extended period (occasional)

First check

Confirm pump will be stored for extended period (determine storage duration)

Test point: Storage plan or schedule
Expected: If storage > 30 days (or per facility policy), remove battery.

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

Battery level insufficient for update

Alert N702 displays; battery level is not sufficient for resource update or device settings update

Ranked causes

1. Battery level below 50% (common)

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

Battery low alarm timing inaccurate or battery state of health not understood

Low battery alarm triggers at incorrect time; battery condition monitoring is inaccurate

Ranked causes

1. Battery reconditioning not performed within 24 months (common)

First check

Verify battery reconditioning has been performed within last 24 months

Test point: Service record documentation
Expected: Battery reconditioning date within 24 months

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

Battery operating outside specified temperature or storage conditions caution

Battery used or stored outside acceptable range (0–45°C), risking shortened lifespan or damage.

Ranked causes

1. Battery exposed to temperature below 0°C or above 45°C during operation or storage (occasional)

First check

Verify storage and operating environment temperature is within 0–45°C

Test point: Ambient temperature where pump/battery is kept
Expected: Temperature maintained between 0°C and 45°C continuously

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

Battery temperature out of range caution

Battery alert E464 displays; battery reporting too high or too low temperature

Ranked causes

1. Battery temperature too high or too low (common)

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

Bottom housing or battery cover assembly screws loose or missing

Assembly screws on bottom housing or battery cover are not tight or are absent

Ranked causes

1. Vibration or handling during use or transport (occasional)

First check

Verify bottom housing assembly screws

Test point: Four assembly screws on bottom housing
Expected: All four screws present and tight

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

Broken downstream pin detected

Pump malfunction alarm E458 displays; broken downstream pin detected during cassette test

Ranked causes

1. Broken downstream pin (unknown)

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

Calibration: Delivery accuracy patient safety

Periodic verification that pump delivers accurate volume over programmed time interval at specified rates.

Ranked causes

1. Periodic maintenance requirement (common)

First check

Ensure graduated cylinder is completely dry before testing each channel

Test point: 25 mL graduated cylinder
Expected: Interior dry, no residual fluid

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

Calibration: Downstream occlusion pressure threshold patient safety

Service test to verify downstream occlusion detection triggers at correct pressure with DPM connected and 3-way stopcock setup

Ranked causes

1. Pressure threshold calibration verification required (common)

First check

Wait for DPM pressure stabilization

Test point: DPM pressure gauge
Expected: Pressure stable after 10 seconds

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

Cassette alarm not triggering during cassette test patient safety

CASSETTE CHECK FAILURE alarm does not flash or audible alarm does not sound during cassette testing with empty run-in cassette inserted

Ranked causes

1. Cassette sensor malfunction or detection failure (occasional)

First check

Insert empty (not primed) run-in cassette and close cassette door

Test point: Cassette door opening and insertion
Expected: CASSETTE TESTING IN PROGRESS message appears on display

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

CDL required flag issue with missing or invalid drug library patient safety

Alarm indicates CDL (Configured Drug Library) required flag not set and either CDL is not present or fails integrity checks

Ranked causes

1. CDL missing or integrity failure (common)

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

CPU and RTC clock frequencies mismatch

Pump malfunction alarm E444 displays; CPU and RTC clock frequencies mismatch during power on self test for PMC

Ranked causes

1. CPU and RTC clock frequencies mismatch (unknown)

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

Damage or degradation from use of unapproved charger high voltage

Use of non-designated battery charger causes electrical/mechanical damage, heat generation, leakage, or safety degradation.

Ranked causes

1. Unapproved or non-designated charger used to charge battery (rare)

First check

Confirm designated Plum Duo AC power supply being used for charging

Test point: Power supply model/part number and connection to pump
Expected: Designated ICU Medical Plum Duo AC power supply connected; no external chargers or adapters

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

Damaged infusion pump found after shipment patient safety

External damage visible on shipping container or pump housing, worn accessories, broken connections, or damaged cable assemblies

Ranked causes

1. Shipping or handling damage (occasional)

First check

Inspect shipping container for external damage

Test point: Entire exterior of container
Expected: No visible damage, dents, or crushing

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

Delivery accuracy test verification patient safety

Verify infusion pump delivers correct volume over time. Test performed on both channels (L1, L2, R1, R2) using graduated cylinder collection.

Ranked causes

1. Pumping chamber fatigue after repeated tests (occasional)

First check

Attach 18-gauge blunt cannula to downstream tubing end

Test point: Downstream tubing cannula
Expected: Cannula securely attached, lines primed
Tools: 18-gauge blunt cannula

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

DEPLETED BATTERY alarm and pump shutdown patient safety

Continuous alarm tone sounds; DEPLETED BATTERY message displays; pump stops infusion and automatically powers off after approximately 3 minutes.

Ranked causes

1. Battery fully discharged after VERY LOW BATTERY alarm ignored or unaddressed (occasional)

First check

Assess pump power state after depletion event

Test point: Pump display and power indicators
Expected: Pump OFF; no infusion active; alarm sounding or device in shutdown state after ~3 minutes

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

Display backlight not adjustable or auto-brightness not functional

Backlight intensity cannot be changed; auto-brightness feature not working; display brightness cannot be adjusted

Ranked causes

1. Backlight control hardware or firmware issue (rare)

First check

Access Settings menu and select BACKLIGHT option

Test point: Pump Settings - Backlight Level screen
Expected: Backlight Level screen displayed with slider and auto-brightness options

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

Display scratched, broken, unclear, or has defective pixels patient safety

LCD display shows scratches, cracks, broken areas, defective pixels, or is not clearly legible; information not readable

Ranked causes

1. Display module defective or damaged (occasional)

First check

Observe LCD display for defective pixels during self-test with ICU Medical logo

Test point: Display screen during self-test
Expected: No defective pixels visible; solid light blue background

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

Display test fails

Display assembly does not respond or shows no output during PVT

Ranked causes

1. Defective display assembly (rare)

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

Downstream air-in-line alarm not triggering patient safety

Alarm should sound and display should blink red before 1 mL fluid is delivered when air is detected downstream

Ranked causes

1. Air detection sensor not functioning or cassette not primed correctly (common)

First check

Start infusion with downstream air test cassette

Test point: Activity line indicator
Expected: PUMPING with start tone and green background screen

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

Downstream occlusion alarm not triggering patient safety

Expected alarm pop-up and audible alarm should appear when downstream occlusion is detected during test with DPM pressure reading at 10 psi ± 3 psi (517 mmHg ± 155 mmHg)

Ranked causes

1. DPM pressure not reaching occlusion threshold (10 psi ± 3 psi) (common)

First check

Measure pressure on DPM after 10 second stabilization

Test point: DPM
Expected: 10 psi ± 3 psi (517 mmHg ± 155 mmHg), ±3 psi

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

Downstream pressure pin damaged or bent

Black downstream pressure pin is bent, broken off, or otherwise damaged preventing proper pressure measurement

Ranked causes

1. Physical damage to pressure pin (rare)

First check

Inspect downstream pressure pin condition

Test point: Downstream pressure pin (black pin)
Expected: Pin undamaged, straight, and intact

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

More symptoms

Drug library activation failed
Drug library missing or incompatible
Efuse output out of range
Electrical safety test fails
Essential performance affected by electromagnetic disturbance
Fatal software failures detected
Fluid shield gap too large or shield not seated properly
Haptics diagnostic test failure
Infusion pump does not operate on AC power
Inter-processor communication timeout
Invalid date or time value
Invalid FLASH non-volatile memory type
Labels illegible or peeling
LifeShield icon not displayed after update
LOW BATTERY alarm displays
Mechanism calibration data CRC error
Pending software update with patient data present
Persistent storage write verification error
Piezo alarm does not sound at battery disconnect
PMC hardware ID mismatch detected
POWER button LED not illuminated after pressing power button
Power button stuck or held
Pressure sensor fails during delivery
Programmed bolus conflict with secondary line
ROM checksum error during CBIT
RTC time invalid during power on self test
Rubber pads missing, loose, or peeling
SLT test failed for PMC
Software stack memory overflow
Software update failed
Software update fails to complete
Software update in progress
Software update in progress (N707)
Software update process takes longer than expected
Speaker produces no sound or incorrect audio level
Storage nearly full
Temperature sensor communication failure
Touch feedback not functioning
Touchscreen diagnostics test failure
Touchscreen keys not responding or input not appearing on display
Touchscreen verification test fails
Unable to connect via Wi-Fi
Unable to upload user-specified wireless certificate
Unapproved battery not recognized or accepted by pump
Unrestricted flow test fluid leakage
Upstream air-in-line alarm not triggering
Upstream air-in-line detection test
Upstream occlusion alarm not triggering
Upstream pressure pin damaged or bent
VERY LOW BATTERY high priority alarm occurs
Voltage input too high
Volume infused and delivery rate mismatch
Web Config is disabled
Wireless connectivity interrupted
Wireless signal icon not displayed
Wireless signal not appearing on display

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

Error codes

Code	Meaning	Trigger	Severity
`Action Required alarm`	System action required from operator	Operational condition requiring user response	warning
`BATTERY NEEDS SERVICE`	Battery has reduced capacity beyond acceptable threshold	Battery charge capacity degradation detected during operation	warning
`E300`	Pump malfunction	ADC test error during power on self test and initialization	error
`E302`	Pump malfunction	Voltage current out of range during operation	error
`E303`	Pump audio failure	I2C communication error with audio code or short circuit in speaker driver circuit	error
`E304`	SEND FOR SERVICE	Failure in communication with temperature sensor	warning
`E305`	Pump malfunction	UIC die temperature or UIC silicon temperature exceeds threshold	error
`E306`	Pump audio failure	Piezo buzzer is OFF but sensed ON, or ON but sensed OFF	error
`E310`	Pump malfunction	PMC software reports processor internal die temperature is too high	warning
`E320`	Battery needs service	Average battery current is out of range	warning
`E321`	Battery needs service	After 8 hours charging, battery charge current above expected limit	warning
`E325`	Battery needs service	Battery cell voltage greater than expected limit	warning
`E326`	Battery needs service	Battery not detected	warning
`E329`	Battery needs service	Battery has permanent damage	error
`E330`	Battery needs service	Battery is not recognized	warning
`E331`	Battery needs service	Battery is not recognized	warning
`E332`	Battery needs service	Battery detected short circuit during charge or discharge	error
`E340`	Power cycle pump	Error writing or reading SCP (SPI controller) registers	error
`E341`	Power cycle pump	Critical data verify error	critical
`E343`	Pump malfunction	Downstream air sensor detects liquid with no cassette OR when sensor is turned OFF	error
`E344`	Pump malfunction	Downstream air sensor self test ongoing while cassette inserted OR when sensor turned OFF and out of range	error
`E345`	Pump malfunction	Pressure sensor out of range while sensor OFF	error
`E346`	Pump malfunction	Pressure sensor fails while infusion system in delivery mode	critical
`E347`	Power cycle pump	Watchdog time limit out of range during power on self test	error
`E378`	Pump malfunction	Various I/O valve motor errors	error
`E379`	Pump malfunction	Various L/S valve motor errors	error
`E380`	Pump malfunction	Various plunger motor errors	error
`E430`	Pump malfunction	Upstream air sensor detects liquid with no cassette OR when sensor is turned OFF	error
`E431`	Pump malfunction	Upstream air sensor self test ongoing while cassette inserted OR when sensor turned OFF and out of range	error
`E432`	Pump malfunction	Pressure sensor out of range while sensor OFF	error
`E433`	PUMP MALFUNCTION	Pressure sensor fails while infusion system in delivery mode	error
`E435`	SEND FOR SERVICE	Current date or time is invalid value during read; RTC communication failure	warning
`E436`	POWER CYCLE PUMP	ROM checksum error during CBIT (continuous built in test)	warning
`E437`	POWER CYCLE PUMP	Various fatal software failures including uncontrolled shutdown	critical
`E438`	POWER CYCLE PUMP	Software stack memory overflow	error
`E440`	PUMP MALFUNCTION	Power button pressed and held for 30 seconds or longer while pump not infusing	warning
`E444`	POWER CYCLE PUMP	CPU and RTC clock frequencies mismatch during power on self test for PMC	warning
`E445`	SEND FOR SERVICE	RTC time is invalid value during power on self test	warning
`E446`	POWER CYCLE PUMP	SLT test failed for PMC	warning
`E448`	POWER CYCLE PUMP	Persistent storage write verification error	error
`E449`	PUMP MALFUNCTION	Mechanism calibration data CRC error	error
`E450`	PUMP MALFUNCTION	PMC hardware ID mismatch detected	error
`E451`	PUMP MALFUNCTION	Volume infused and program delivery rate mismatch	error
`E455`	PUMP MALFUNCTION	Invalid FLASH non-volatile memory type	error
`E458`	PUMP MALFUNCTION	Broken downstream pin detected during cassette test	error
`E459`	PUMP MALFUNCTION	Inter-processor communication timeout between PMC and UIC	error
`E460`	PUMP MALFUNCTION	Voltage input VIN_17 too high for over 1 minute sliding window	error
`E461`	PUMP MALFUNCTION	Efuse output out of range	error
`E462`	SEND FOR SERVICE	Communication failure with ALS driver detected	warning
`E464`	BATTERY NEEDS SERVICE	Battery reporting too high or too low temperature	warning
`E465`	BATTERY NEEDS SERVICE	Communication to battery lost	warning
`E466`	POWER CYCLE PUMP	Failure during touchscreen diagnostics test or communication failure	error
`E703`	UPDATE FAILED	Software update failed in PMC1/PMC2, UIC, or CE stages but software is recoverable	error
`N101`	Inactivity timeout - one channel in use, cassette inserted	One channel in use, other has cassette inserted, left idle 5 minutes	info
`N102`	Action required - modal not acknowledged after 15 seconds	Action modal unacknowledged for 15 seconds	warning
`N102`	Action required - no operator action during underlying therapy programming	No operator action for 30 seconds when line programmed during underlying therapy, not confirmed	warning
`N103`	Programming lost - retained delivery parameters corrupted	Corruption of retained delivery parameters detected	error
`N104`	Callback alarm - Line 2 piggyback, Line 1 not resuming, VTBI zero	Line 2 in Piggyback mode, Line 1 not programmed to resume, Line 2 VTBI or multistep becomes 0, Callback enabled	info
`N105`	Callback with delivery stop - infusion halts at step completion	User configures callback and stop; step in multistep, load, bolus or piggyback completes	info
`N159`	Near end of infusion - running therapy within 10 minutes of completion	Active therapy reaches within 10 minutes of completion	info
`N160`	VTBI Complete	Line 2 delivery VTBI = 0 AND line programmed under current CCA AND line 2 has concurrent therapy programmed	info
`N160`	VTBI complete - Line 1 delivery finished under current CCA	Line 1 delivery VTBI = 0 and programmed under current CCA	info
`N160`	VTBI complete - Line 2 piggyback delivery finished	Line 2 delivery VTBI = 0, programmed under current CCA, no delivery on Line 1, Line 2 piggyback configured	info
`N186`	Downstream Occlusion	Downstream occlusion detected with auto-restart off; OR detected with auto-restart on and maximum restarts reached; OR 60 seconds expires without pressure drop below threshold	error
`N187`	Pump High Above Patient	Downstream occlusion detected during delivery due to excessive back pressure (negative detection algorithm)	warning
`N188`	Upstream Occlusion Secondary Line	Upstream occlusion detected on Secondary Line during delivery (negative detection algorithm)	error
`N189`	Upstream Occlusion Secondary Line Peak Detection	Upstream occlusion detected on Secondary Line during delivery (peak detection algorithm)	error
`N192`	Downstream Occlusion Auto Restart	Downstream occlusion detected AND auto-restart configured to on AND maximum auto-restarts not exceeded within last 15 minutes (peak detection algorithm)	warning
`N230`	Upstream Air	Cumulative upstream air detected exceeds air detection threshold (1 mL total or 0.5 mL per line for concurrent delivery)	warning
`N231`	Upstream Air Primary Line Single Bolus	Single air bolus detected at upstream sensor in Primary Line exceeds threshold (0.5 mL or larger)	warning
`N233`	Downstream Air Cumulative	Cumulative air detected at downstream sensor exceeds threshold (0.25 mL out of 4.9 mL fluid)	warning
`N234`	Downstream Air Single Bolus	Single air bolus of 0.1 mL or larger detected at downstream sensor exceeds threshold	warning
`N248`	Very Low Battery	Battery time to empty is at least 15 minutes	warning
`N249`	Door Opened Delayed Start	Cassette door handle opened while in Delayed Start	critical
`N250`	Door Opened During Delivery	Cassette door handle opened while delivering	critical
`N251`	Cassette Check Failure	Faulty cassette, upstream occlusion, or air in cassette detected during cassette initialization	error
`N252`	Depleted Battery	Battery voltage below depleted battery voltage threshold	critical
`N255`	Stopped While Locked	Stop initiated with passcode protected locked touchscreen	warning
`N257`	Pump Audio Failure	I2C communication error with audio codec OR short circuit detected in speaker driver circuit	error
`N258`	SEND FOR SERVICE	Haptics diagnostic test failure during power up	warning
`N56`	Battery does not have sufficient capacity	Battery capacity drops below operational threshold	warning
`N57`	Charger specific malfunction, including charger IC communication	Charger or charging circuit communication failure detected	error
`N58`	Battery charge level is low	Battery charge drops below operational minimum	warning
`N701`	UPDATE FAILED	Drug library activation failed; pump able to rollback to prior custom drug library	error
`N702`	LOW BATTERY	Battery level is not sufficient for resource update or device settings update	info
`N704`	PENDING UPDATE	Patient data present upon pressing power off button when pending update available	warning
`N705`	PROGRAMMED BOLUS	User starts secondary line when bolus actively infusing or stopped on primary or vice versa	info
`N706`	UPDATE IN PROGRESS	Software update is in progress	info
`N707`	UPDATE IN PROGRESS	Software update is in progress	info
`N708`	Storage at least 95% full, cannot write	Pump attempts to write to storage that is at least 95% capacity	error
`N/A`	Drug library missing or incompatible and non-recoverable	Drug library required but missing, incompatible, or rollback failed	error
`N/A`	CDL integrity check failed or missing	CDL required flag not set and CDL missing or fails integrity checks	error
`Program Inactivity alarm`	No action taken within inactivity timeout period	Program interface inactive for extended period	info

Likely causes and actions for each code are in ServiceForge. Connect ServiceForge to your AI

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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.