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Manufacturer
Model
What This Guide Helps With
Addresses abnormal chamber water handling caused by water availability, reservoir condition, drainage obstruction, connections, loading, or service-level flow-control problems.
Step-by-Step Troubleshooting
1. Protect the Load and Remove the Unit From Active Processing
Do not continue sterilization when the chamber cannot obtain or remove water normally. Quarantine any load from an incomplete cycle and redirect processing to another verified sterilizer as needed.
Expected outcome: No load is released from an incomplete or questionable cycle.
2. Confirm the Exact Fluid-Handling Problem
Determine whether the chamber receives no water, appears to receive too little or too much, drains slowly, retains water after a cycle, or fails repeatedly during a specific phase.
Look for visible leakage around or beneath the unit.
Expected outcome: The problem is identified as fill, drainage, retained water, or apparent level-related behavior.
3. Verify the Required Water Source
Check the sterilizer's normal water source or reservoir arrangement for the installed configuration. Confirm adequate water is available and that staff are using the appropriate water and filling procedure required by the device and facility.
Do not introduce unapproved water or chemicals.
Expected outcome: The sterilizer has an adequate and appropriate water source.
4. Check Accessible Water Connections
Inspect accessible hoses, tubing, fittings, reservoir connections, or external supply connections for kinks, disconnection, pinching, leakage, or obvious blockage.
Do not disconnect pressurized or hot plumbing unless it is safe and within Clinical Engineering scope.
Expected outcome: Accessible fluid paths are correctly connected and unobstructed.
5. Inspect the Chamber and Accessible Drain Area
When the chamber is cool and safe, inspect for packaging fragments, debris, residue, or items obstructing the accessible drain or water path.
Remove only readily accessible debris using approved cleaning procedures.
Expected outcome: The chamber and accessible drain area are clear. If removing an obstruction restores normal operation, proceed to final verification.
6. Verify Load Placement
Ensure trays, packs, or containers are not positioned in a way that blocks accessible drain or water-distribution areas.
Expected outcome: Load arrangement does not interfere with normal chamber fluid movement.
7. Observe a Controlled Test Cycle
Using approved test conditions, observe whether water enters and exits at the expected stages of the cycle without visible leakage or abnormal retention.
Do not repeatedly run cycles if water accumulates externally or the chamber overfills.
Expected outcome: Fill and drainage occur normally. If operation is restored, perform complete process verification.
8. Check for External Drainage Restrictions
Where the installed configuration uses external drainage, inspect accessible external drain routing for kinks, elevation changes, obstruction, or improper placement that could prevent normal discharge.
Expected outcome: External drainage is free and correctly routed.
9. Perform Final Functional Verification
Complete an approved operational cycle and verify the chamber reaches expected operating conditions, drains appropriately, and finishes without abnormal retained water or leakage.
Expected outcome: Fluid handling is normal and required sterilization-process checks pass. Troubleshooting can stop.
10. Escalate Persistent Fill or Drain Problems
If water availability and accessible paths are normal but the sterilizer still will not fill or drain correctly, discontinue use.
Expected outcome: Internal flow-control, sensing, pump, valve, plumbing, or control issues are escalated for qualified service.
If the Problem Persists
Common external causes involving water availability, accessible tubing, drainage, chamber debris, and load placement have been ruled out. Remaining causes may involve internal plumbing, valves, pumps, level or pressure sensing, control logic, or another service-level condition.
Remove the sterilizer from service, label it Out of Service, and arrange bench or authorized service evaluation using appropriate Tuttnauer documentation and approved test equipment.
Following repair, verify leak-free operation, proper fill and drainage, complete cycle performance, and all required sterilization-process tests before return to service. Knowing when to stop external troubleshooting is proper troubleshooting.
Clinical Use Tip
Standing water or abnormal fill behavior should never be ignored because it can invalidate the cycle and may indicate a developing leak or drainage problem.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
"Sterile Processing reported that the Tuttnauer T-Edge 10 retained water in the chamber after cycles."
Cause
What was observed during troubleshooting.
Example:
"Clinical Engineering found packaging debris obstructing the accessible chamber drain area."
Resolution
What action was taken.
Example:
"The debris was removed using approved cleaning methods, normal drainage was verified, and a complete verification cycle passed before return to service."
Helpful Details to Include (If Known)
- Fill, overfill, slow drain, or retained-water symptom
- Cycle phase affected
- Water source or reservoir condition
- Accessible hose and connection condition
- Chamber drain observations
- Load arrangement
- Visible leakage
- Results with test cycle
- Final chamber condition
- Required process-verification results
- Final device status
Final Thought
Fluid problems should be approached from the water source and accessible flow path inward. Verify simple restrictions and loading issues first, but remove the sterilizer from service when reliable fill, drainage, or containment cannot be demonstrated.
That is successful troubleshooting.