Plum Aplus

ICU Medical · Infusion Pumps

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Abbott Infusion Pump Plum A Service Manual

Operator's ManualArchive copyEN

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Stuck? Start here

✅ Check the simple stuff first

Make sure the patient is safe — swap in a backup unit if you need to.
Reproduce the complaint yourself and write down exactly what you see (screen, alarm, code).
Check power, battery, cables, accessories, and settings before ordering parts.
Then open the service manual above and follow its troubleshooting section.

🛠️ Common faults for Plum Aplus (6)

Distal occlusion (N180/N181/N186) source ↗

Check distal tubing for kinks and IV site patency
Raise distal pressure limit if set too low
Follow the manual's steps to avoid a bolus after clearing

Proximal occlusion / air (N182–N189, N230/N231) source ↗

Open clamps; check for empty or disconnected container
Open and close door to re-run the cassette test
Backprime into line B tubing or a syringe

Cassette test failure (N251) source ↗

Check clamps; manually reprime; close door
Replace set; if it repeats, replace infuser

Battery warnings (Replace Battery / Charger Service / Low Battery / N252) source ↗

Plug into AC (about 30 min left at Low Battery)
Replace Battery: charge current >200 mA/hr or voltage below the depleted threshold → replace battery
Charger Service: the charge circuit is misbehaving → send for service

Lockout prevents keys (N253–N256) source ↗

Hard lockout: back switch down
Soft lockout: decimal key then 9, 6, 3

Malfunction E300 or higher source ↗

Record code, power off to clear
If it repeats, remove from service and contact tech support with the code

🔢 Plum Aplus error codes (19)

Code	Meaning	Next step
N100	Unrecognized cassette	Turn off or insert a recognized cassette source ↗
N101	No action alarm — programming incomplete	Press START or finish programming source ↗
N102	Infuser idle 2 minutes	Program or turn off source ↗
N103	Memory failure — previous data not accepted	Re-enter all programmed data source ↗
N104/N105	Callback line B / line A	Press SILENCE; check next step source ↗
N160/N161	Line B / Line A VTBI complete	Program new VTBI source ↗
N180/N181/N186	Distal occlusion	Check distal tubing and IV site; reset pressure limit; avoid post-occlusion bolus source ↗
N187	Negative distal occlusion	Lower infuser below patient or replace set source ↗
N182/N188/N189	Prox occl B / air	Check line B for kinks, clamps, air; backprime source ↗
N183	Prox occl B	Check line B kinks/clamps source ↗
N185	Prox occl A at startup	Open clamps, open/close door; replace set if persists; syringe: Backprime source ↗
N230/N231	Proximal air, backprime	Check clamps/empty container; backprime into line B tubing or syringe source ↗
N233/N234	Distal air	Remove and reprime cassette source ↗
N250	Door opened while pumping	Close door with cassette inserted source ↗
N251	Cassette test failure	Check clamps, manually reprime, close door; replace set, then infuser if repeats source ↗
N252	Depleted battery	Plug into AC source ↗
N253/N254	Hard lockout violation/enabled	Unlock lockout switch source ↗
N255/N256	Soft lockout violation/enabled	Press decimal key then 9, 6, 3 source ↗
E300+	Malfunction (internal system failure)	Record code; turn off to clear; replace infuser if repeats source ↗

🧰 Common checks for Infusion Pumps (5)

Occlusion source ↗

Check for closed clamps/stopcocks, kinks, IV site patency
Check pump height vs patient (LVP)

Air-in-line source ↗

Look for small bubbles; disconnect and re-prime

Door/cassette/syringe loading source ↗

Close door with set seated; check syringe clamp, flange and plunger holders

Battery/AC source ↗

Run on AC; replace/maintain battery; battery service alarms → repair

Device/system error source ↗

Power cycle once; if it repeats remove from service

📞 Still stuck? Call ICU Medical

Contact ICU Medical US

📞 Tech support: 1-800-241-4002, option 3
✉️ Email: [email protected]

Parts: [email protected]. Canada 1-866-488-6088.

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