Smiths Medical Medfusion 3500: troubleshooting and error codes
The ServiceForge knowledge base holds 3 documented symptoms for the Smiths Medical Medfusion 3500, with 3 ranked causes, 0 diagnostic checks with test points and expected values, and 3 error codes. Each symptom below shows its causes and the first check; the rest is one connection away. Connect ServiceForge to your AI
Symptoms
False occlusion alarms patient safety
Pump displays occlusion alarm when line is not actually blocked, interrupting therapy unnecessarily
Ranked causes
- 1. Force sensor calibration drift - threshold decreased (occasional)
1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI
Increased occlusion detection time patient safety
Occlusion alarm delayed or does not trigger when line becomes blocked
Ranked causes
- 1. Force sensor calibration drift - threshold increased (occasional)
1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI
System Failure Alarm displayed patient safety
Pump sounds audible alarm, displays visual alarm on screen, infusion stops immediately
Ranked causes
- 1. Force sensor calibration drift - large shift (occasional)
1 corrective action and part numbers are in ServiceForge. Connect ServiceForge to your AI
Error codes
| Code | Meaning | Trigger | Severity |
|---|---|---|---|
Force Sensor BGND Test | Force sensor background test failure indicates calibration drift beyond acceptable limits | Force sensor calibration shifted significantly during pump operation or self-test | critical |
Force Sensor Bridge Test | Force sensor bridge circuit test failure indicates electrical or calibration fault | Force sensor calibration drift or bridge circuit malfunction detected during self-test | critical |
Force Sensor Test | General force sensor functional test failure | Force sensor output outside expected calibration range during device self-test | critical |
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.