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Asset Type
Manufacturer
Model
What This Guide Helps With
Addresses low water flow, supply errors, filtration alarms, or cycle interruptions caused by water supply, pressure, or filter-related issues.
Step-by-Step Troubleshooting
Ensure Patient Safety First
- Do not troubleshoot while a scope is actively being processed for patient use
- Remove the scope and use another AER if needed
Verify the Reported Issue and Alarm
- Note exact alarm message (low water, supply error, filter warning)
- Observe when the error occurs (start, rinse, or fill phase)
Check Facility Water Supply (Most Common Cause)
- Ensure supply valve is fully open
- Verify facility water is not shut off or under maintenance
- Confirm no kinks in supply hose
Verify Water Pressure
- Confirm adequate pressure from facility source
- Compare with nearby equipment using same supply
- Look for slow fill behavior
Inspect Inlet Water Filter (Very Common Cause)
- Locate inlet filter screen
- Inspect for debris, sediment, or discoloration
- Clean or replace if accessible per facility protocol
Check External Water Lines and Connections
- Inspect hoses for kinks or compression
- Ensure all fittings are tight
- Check for leaks or air intrusion
Evaluate Internal Filtration Indicators (If Accessible)
- Check for filter replacement alerts
- Review maintenance logs for overdue filter changes
Perform a Test Cycle (If Safe to Do So)
- Monitor fill time and water flow
- Watch for repeat alarms
If the Problem Persists
If water supply, pressure, and filtration have been verified and the issue continues, the problem is likely internal (flow sensors, valves, or internal plumbing). Remove the device from service, label it Out of Service, and send it for repair or bench evaluation.
Clinical Use Tip
Never rely on a questionable AER cycle for patient-ready scopes. If water flow or filtration is compromised, always reprocess the scope on a confirmed working unit.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"OER-Pro reporting water supply error and unable to start cycle."
Cause
What was observed during troubleshooting.
Example:
"Clogged inlet water filter restricting flow into unit."
Resolution
What action was taken.
Example:
"Cleaned inlet filter, verified water pressure, and confirmed normal cycle operation."
Helpful Details to Include (If Known)
- Water supply valve position verified
- Filter condition (clean/dirty/replaced)
- Hose condition (kinked/damaged/normal)
- Alarm message text
- Fill time behavior (slow/normal)
- Leak presence or absence
- Final operational status
Final Thought
Water-related issues in AERs are often external and preventable. Start with supply and filtration before assuming internal failure. Proper troubleshooting protects both equipment reliability and patient safety, while clear documentation supports long-term maintenance.
That is successful troubleshooting.