Infusion pumps

Hospira Plum A+3: troubleshooting and error codes

The ServiceForge knowledge base holds 12 documented symptoms for the Hospira Plum A+3, with 26 ranked causes, 12 diagnostic checks with test points and expected values, and 80 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI

Symptoms

Distal occlusion test failure patient safety

Infuser does not detect or respond to distal line occlusion

Ranked causes

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

First check

Distal occlusion test per Section 5.3.13

Test point: Distal sensor detection
Expected: Occlusion detected and alarm triggered

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

Proximal occlusion test failure patient safety

Infuser does not detect or respond to proximal line occlusion

Ranked causes

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

First check

Proximal occlusion test per Section 5.3.10

Test point: Proximal sensor detection
Expected: Occlusion detected and alarm triggered

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

Air-in-line test failure patient safety

Infuser does not detect air bubbles in proximal or distal line

Ranked causes

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

First check

Air-in-line tests per Section 5.3.11 and 5.3.12

Test point: Air detection sensors
Expected: Air bubbles detected

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

Alarm loudness test failure patient safety

Alarm does not sound or is too quiet

Ranked causes

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

First check

Alarm loudness test per Section 5.3.8

Test point: Piezo speaker output
Expected: Alarm sounds at specified loudness

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

Delivery accuracy test failure patient safety

Infuser delivery volume or rate measurement outside specification

Ranked causes

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

First check

Run delivery accuracy test per Section 5.3.14

Test point: Fluid delivery measurement
Expected: Volume and rate within specification

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

Cassette alarm test failure patient safety

Cassette alarm functionality test does not pass

Ranked causes

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

First check

Run cassette alarm test per Section 5.3.4

Test point: Infuser display
Expected: Alarm test pass

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

Self test failure patient safety

Infuser self test does not complete successfully on power-on

Ranked causes

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

First check

Perform self test from Section 5.3.3

Test point: Infuser display
Expected: Self test pass indication

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

Display test failure caution

Display does not show text or segments, or display is dark or unreadable

Ranked causes

1. Defective display assembly (occasional)

First check

Display test per Section 5.3.6

Test point: Display screen
Expected: All pixels or segments illuminated

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

Electrical safety test failure high voltage

AC power cord insulation or grounding test fails

Ranked causes

1. Defective AC power cord (occasional)

First check

Electrical safety test per Section 5.3.16

Test point: AC power cord
Expected: Insulation and grounding within specification

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

Keypad lockout switch test failure caution

Keypad lockout function does not operate

Ranked causes

1. Defective peripheral interface PWA (rare)

First check

Keypad lockout test per Section 5.3.9

Test point: Lockout switch and keypad
Expected: Keys locked when switch engaged

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

Keypad test failure caution

Keypad keys do not register or functional test fails

Ranked causes

1. Defective keypad (occasional)

First check

Keypad functional test per Section 5.3.7

Test point: All keypad keys
Expected: All keys register input

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

Unrestricted flow detected patient safety

Infuser delivers fluid without occlusion control; life-threatening condition

Ranked causes

1. Regulator closer not seated correctly (common)

First check

Visual inspection of regulator closer position

Test point: Regulator closer seat in mechanism
Expected: Regulator closer completely seated

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

Error codes

Code	Meaning	Trigger	Severity
`E300`	Analog to digital converter failure	ADC conversion fails during operation	error
`E301`	Audio alarm piezo failure	Piezo off but sensed on, or piezo on but sensed off	error
`E302`	Backlight CCFT tube failure	CCFT tube not at expected range	error
`E320`	Battery charge/discharge current out of range	Current limiting circuitry fails or excessive current draw detected	error
`E321`	Battery charging current fails to drop below threshold	Charging current not below threshold in 8 hours or 1A in 6 hours	error
`E322`	Battery current calibration value out of range	Charge current measurement circuitry fails	error
`E323`	Battery trickle charge current out of range	Trickle charge current measurement fails	error
`E324`	Supply overvoltage condition	Power supply voltage exceeds acceptable range	critical
`E325`	Battery overvoltage condition	Battery voltage exceeds acceptable range	critical
`E326`	Battery disconnected while on or voltage too low	Battery removed during operation or voltage critically low	critical
`E340`	Critical CPU register self-test failure	Power-up CPU register test fails	critical
`E341`	Critical data memory failure	Critical data memory corruption or failure during self-test	critical
`E342`	Display assembly failure	Defective display detected	error
`E343`	Distal air sensor detects liquid without cassette	With cassette removed, self-test detects liquid	error
`E344`	Distal air sensor out of range with cassette	With cassette inserted, self-test detects out of range	error
`E345`	Distal pressure sensor failure while off	Distal pressure sensor failed during off-state test	error
`E346`	Distal pressure sensor failure while on	Distal pressure sensor failed during on-state test	error
`E347`	Hardware watchdog timer failure	Watchdog timer fails during self-test	critical
`E378`	I/O valve phase loss detected	Generic I/O valve failure or phase mismatch	error
`E379`	L/S valve phase loss detected	Generic L/S valve failure or phase mismatch	error
`E380`	Plunger motor phase loss detected	Generic plunger motor failure	error
`E430`	Proximal air sensor detects liquid without cassette	Ongoing test detects liquid with cassette removed	error
`E431`	Proximal air sensor self-test detects liquid	Self-test detects liquid with cassette removed	error
`E432`	Proximal pressure sensor failure while off	Sensor failed during off-state test	error
`E433`	Proximal pressure sensor failure while on	Sensor failed during on-state test	error
`E434`	RAM memory failure	RAM checksum or access failure during test	critical
`E435`	Real-time clock failure	RTC circuit fails during self-test	error
`E436`	ROM checksum failure	ROM data checksum verification fails	critical
`E437`	Generic software failure	Software error detected during operation	error
`E437-13`	Processor reset while infuser in ON state	Processor reset or restarted while device operating	critical
`E438`	Stack overflow or underflow condition	Stack pointer exceeds valid range	critical
`E439`	Keypad key stuck	Key sensed as pressed for over two minutes	error
`E440`	Power hold signal stuck	Power hold signal cannot turn device off	critical
`E443`	LCD display bias out of range	LCD bias voltage fails during self-test	error
`E444`	CPU timebase accuracy failure	CPU timer 2 and RTC measured times disagree	error
`E445`	RTC memory corruption	Real-time clock memory data corrupted	error
`E446`	CPU timer mismatch failure	CPU timer 1 and timer 2 measured times disagree	error
`E447`	Battery ADC reading stuck at extreme	16 consecutive readings all zero or maximum value	error
`E448`	SEEP data write failure	SEEP nonvolatile memory write operation fails	error
`E449`	SEEP calibration data corrupted	Calibration data block CRC check fails	error
`E450`	Memory-mapped I/O port read/write failure	I/O port access fails during test	critical
`E451`	Over or under delivery detected	Infusion delivery rate significantly deviates from programmed	error
`E452`	Miscellaneous software failure	Generic software error detected	error
`E453`	Two SEEP CRC errors detected	NVRAM data block checksum verification fails twice	critical
`E454`	NVRAM storage capacity exceeded	Software attempts to write to non-existent NVRAM space	error
`E455`	Invalid flash memory configuration	Incorrect flash memory detected on peripheral PWA	error
`E456`	Drug library installation failed	Drug library install started but not completed	error
`E457`	Drug library data corrupted	Drug library CRC verification fails	error
`N100`	Unrecognizable cassette	Incorrect cassette is inserted	warning
`N101`	No action	No operator action and no delivery for two minutes during delivery parameters entry	warning
`N102`	Infuser idle 2 minutes	Infuser in reset or idle for over two minutes	info
`N103`	NV RAM lost thpy data	Infuser did not complete the previous non-volatile memory write successfully	error
`N104`	Nurse callback B	End of delivery step on line B other than VTBI complete while callback is enabled	warning
`N105`	Nurse callback A	End of delivery step on line A other than VTBI complete while callback is enabled	warning
`N160 or E160`	Line B VTBI complete	Programmed VTBI completed on line B	info
`N161 or E161`	Line A VTBI complete	Programmed VTBI completed on line A	info
`N180 or E180`	Distal Occl	Peak distal occlusion detected during non-delivery	warning
`N181 or E181`	Distal Occl	Negative distal occlusion detected during non-delivery	warning
`N182 or E182`	Prox. Occl B, Air	Negative proximal occlusion B detected during non-delivery	warning
`N183 or E183`	Prox. Occl B, Air	Peak proximal occlusion B detected during non-delivery	warning
`N184 or E184`	Prox. Occl A, Air	Negative proximal occlusion A detected during non-delivery	warning
`N185 or E185`	Prox. Occl A, Air	Peak proximal occlusion A detected during non-delivery	warning
`N186 or E186`	Distal Occl	Peak distal occlusion detected during delivery	error
`N187 or E187`	Distal Occl	Negative distal occlusion detected during delivery	error
`N188 or E188`	Prox. Occl B, Air	Negative proximal occlusion B detected during delivery	error
`N189 or E189`	Prox. Occl B, Air	Peak proximal occlusion B detected during delivery	error
`N190 or E190`	Prox. Occl A, Air	Negative proximal occlusion A detected during delivery	error
`N191 or E191`	Prox. Occl A, Air	Peak proximal occlusion A detected during delivery	error
`N230 or E230`	Prox. Air total	500 µL of air has entered the cassette	warning
`N231 or E231`	Prox. Air on B, backprime	500 µL of air has entered the cassette on line B	warning
`N232 or E232`	Prox. Air on A, Backprime	500 µL of air has entered the cassette on line A	warning
`N233 or E233`	Distal air cumulative	500 µL of air detected in the last 5.3 mL of fluid delivered	warning
`N234 or E234`	Distal air bolus	100 µL bolus of air detected at distal sensor	warning
`N250 or E250`	Door opened while pumping	Door opened while pumping	error
`N251 or E251`	Valve/cass test fail	Valve/cassette fails leak test	error
`N252 or E252`	Depleted battery	Battery terminal voltage is less than 5.45 V	warning
`N253 or E253`	Lockout Violation	Use of the [STOP] key or door open attempt while lockout switch is locked	warning
`N254 or E254`	Lockout Enabled	Any action not resulting in stopping of delivery while lockout switch is locked	warning
`N255`	Lockout violation	Use of the [STOP] key or door open attempt while lockout switch is locked	warning
`N256`	Lockout enabled	Any action not resulting in stopping of delivery while lockout switch is locked	warning

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

Community

0 fixes logged by technicians through their AI, with outcomes, for this model.

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