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What This Guide Helps With
Troubleshoots startup and touchscreen instability caused by power, battery condition, accessories, external connections, contamination, software state, or internal faults.
Step-by-Step Troubleshooting
1. Protect the Patient and Remove the Pump From Active Therapy
A pump with a frozen display, unexpected reboot, or incomplete startup must not remain responsible for patient therapy. Transfer the infusion to another verified pump before troubleshooting.
Expected outcome: Patient therapy continues safely and the affected pump is isolated for evaluation.
2. Confirm the Reported Failure
Determine whether the screen freezes during use, the device reboots unexpectedly, touch input stops responding, or startup never completes. Record the screen state and any message displayed before or after the event.
Expected outcome: The failure mode is clearly identified and reproducible when possible.
3. Inspect for Physical Damage or Contamination
Check the touchscreen, bezel, enclosure, power connector, and accessible external surfaces for cracks, fluid intrusion, heavy contamination, impact damage, or signs of overheating.
Expected outcome: No visible condition is present that would make continued operation unsafe.
If liquid intrusion, burning odor, unusual heat, or structural damage is found, stop troubleshooting and remove the unit from service.
4. Verify AC Power
Connect the pump to a known-good approved AC source. Confirm the power connection is secure and observe whether the device recognizes external power normally.
Expected outcome: Stable AC power is available and the device remains powered without interruption.
If correcting the outlet or power connection resolves the issue, repeat startup several times before return to service.
5. Remove Nonessential External Connections
Disconnect nonessential external communication cables or accessories that are not required for basic startup, following approved procedures.
Expected outcome: The pump can be evaluated in a basic standalone configuration.
If the pump starts normally only after an external accessory or connection is removed, investigate that external component separately.
6. Perform a Normal Restart
With no patient connected, perform the standard user-accessible shutdown and startup process. Do not force undocumented reset procedures or enter restricted service modes.
Expected outcome: The pump boots completely and the touchscreen becomes responsive.
If the pump starts normally, repeat power cycles and basic operation to determine whether the condition was transient.
7. Check Touchscreen Response
From normal accessible screens, verify that touch input responds consistently across the portions of the display required for operation. Do not perform unauthorized touchscreen calibration.
Expected outcome: Touch commands register accurately and consistently.
If touch remains intermittent or displaced, remove the pump from service.
8. Test AC and Battery Operation
If the pump completes startup, observe operation on AC and then during a controlled battery test according to approved procedures. Determine whether instability is associated specifically with power-source transitions.
Expected outcome: The pump remains stable on each approved power source and during normal transition.
9. Observe for Repeat Reboots or Freezes
Operate the pump in a controlled test configuration long enough to determine whether the reported reboot or freeze recurs during setup or simulated infusion.
Expected outcome: No unexpected reboot, frozen display, or startup failure occurs.
Intermittent recurrence is sufficient reason to remove the pump from service.
10. Complete Return-to-Service Verification
Confirm normal startup, touchscreen operation, alarm function, both channels, external power indication, and required safety checks.
Expected outcome: The pump operates reliably through all required functional checks.
If the Problem Persists
If stable AC power, external accessories, normal restart, and basic operation have been verified but the touchscreen still freezes, the pump reboots, or startup remains incomplete, common external causes have been ruled out.
Possible remaining categories include display hardware, internal power distribution, battery-management circuitry, software corruption, internal connections, or another service-level fault.
The device should be:
- Removed from service
- Labeled Out of Service
- Sent for bench evaluation
- Evaluated using manufacturer documentation and approved test equipment
- Repaired or reconfigured only by qualified personnel
- Fully tested before return to clinical use
Do not return an intermittently rebooting infusion pump to service merely because it passes one restart.
Clinical Use Tip
Any unexpected reboot during infusion requires immediate transfer of therapy to another verified device.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Nursing reported that the Plum Duo touchscreen froze during setup and the pump later rebooted."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found an intermittent external AC connection at the pump power interface."
Resolution
What action was taken.
Example:
"Corrected the power connection, verified stable AC and battery operation, completed repeated startups, and confirmed normal touchscreen and infusion function."
Helpful Details to Include (If Known)
- Exact screen behavior
- Point in startup where failure occurs
- Reboot frequency
- AC power indication
- Battery behavior
- Physical damage
- Evidence of fluid intrusion
- External connections removed
- Touchscreen response
- Results after restart
- Final device status
Final Thought
An infusion pump that freezes or reboots must be treated as unreliable until stable operation is demonstrated. Verify external power and connections first, then escalate persistent or intermittent instability rather than assuming one successful restart proves reliability.
That is successful troubleshooting.