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Asset Type
Manufacturer
Model
What This Guide Helps With
Cycle stops, aborts, or fails to complete due to door, water supply, drainage, or alarm-related external issues.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Ensure no instruments needed for immediate patient care are dependent on this unit.
- Expected: Backup equipment/process in place.
- Why it matters: Delays in reprocessing can impact patient care readiness.
Verify the Reported Issue
- Start a cycle and observe where it stops or aborts. Note any displayed error codes or alarms.
- Expected: Cycle stops at a repeatable stage or shows an error.
- Why it matters: Identifying the failure point narrows troubleshooting.
Check Door Closure and Latching
- Inspect door seal and confirm door fully closes and latches securely.
- Expected: Door closes firmly with no gaps or resistance.
- Why it matters: Door interlock failure will stop or prevent cycle progression.
- If door not fully latched → adjust/clean seal and retest.
Inspect Door Gasket and Seal Area
- Check for debris, damage, or buildup on the gasket.
- Expected: Clean, intact gasket with proper seal.
- Why it matters: Poor sealing can trigger aborts due to pressure or leak detection.
- If debris found → clean and retest.
Verify Water Supply
- Confirm facility water supply is on and valves are fully open. Check for kinks in supply lines.
- Expected: Adequate water flow to the unit.
- Why it matters: Insufficient water supply will stop the cycle early.
- If supply issue found → correct and retest.
Check Drain System
- Inspect drain hose and connection for kinks, clogs, or backflow issues.
- Expected: Free and unobstructed drainage.
- Why it matters: Drain issues commonly cause mid-cycle aborts.
- If blockage found → clear and retest.
Inspect Spray Arms and Filters
- Open chamber and check spray arms for free rotation and filters for debris buildup.
- Expected: Spray arms rotate freely and filters are clean.
- Why it matters: Restricted flow can trigger pressure or circulation faults.
- If debris found → clean components and retest.
Check Chemical Levels (Detergent/Rinse Aid)
- Verify chemical containers are not empty and lines are properly connected.
- Expected: Adequate chemical levels and proper flow.
- Why it matters: Some cycles will abort if dosing conditions are not met.
- If low/empty → replace and retest.
Review Alarm Codes or Messages
- Document any error codes displayed during the abort.
- Expected: Identifiable alarm or fault message.
- Why it matters: Provides direction for targeted repair if issue persists.
Power Cycle the Unit
- Turn the unit off, wait 30 seconds, then power back on and restart a cycle.
- Expected: System resets and cycle completes normally.
- Why it matters: Clears temporary faults or control glitches.
- If cycle completes → issue resolved.
If the Problem Persists
If all external causes have been ruled out and the issue continues, the problem is likely internal (sensor, pump, heating element, or control board).
Remove the unit from service, label it Out of Service, and send for repair or bench evaluation.
Knowing when to stop prevents unnecessary risk and ensures proper escalation.
Clinical Use Tip
Do not troubleshoot while the washer is actively processing instruments needed for patient care. Use alternate reprocessing methods or equipment first.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Washer-disinfector cycle aborting mid-cycle with alarm."
Cause
What was observed during troubleshooting.
Example:
"Debris buildup found in chamber filter restricting water flow."
Resolution
What action was taken.
Example:
"Cleaned filter, verified spray arm movement, and confirmed successful cycle completion."
Helpful Details to Include (If Known)
- Outlet and power verified
- Water supply valves checked
- Drain line inspected
- Spray arms and filters cleaned
- Chemical levels confirmed
- Alarm codes documented
- Cycle stage where failure occurred
- Final device status (passed/failed testing)
Final Thought
Effective troubleshooting starts with simple, external checks before assuming internal failure. Maintaining patient safety and proper instrument reprocessing is critical. Clear documentation and timely escalation ensure reliability and compliance.
That is successful troubleshooting.