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What This Guide Helps With
This guide assists Clinical Engineering in troubleshooting situations where the Tuttnauer 3870 sterilizer experiences slow draining, incomplete air removal, or cycle aborts due to possible blockages in the drain or air removal system. Most causes are external or easily verified without internal disassembly, ensuring safe operation and proper patient device readiness.
Step-by-Step Troubleshooting
Verify Power and Cycle Selection
- Ensure the sterilizer is powered on and the correct cycle is selected.
- A misselected cycle may trigger air removal or drain errors.
Check Drain Line and Trap
- Inspect the drain line for kinks, bends, or visible clogs.
- Confirm that the drain trap is free of debris or sediment.
- Blockages here can prevent proper water evacuation, causing air removal errors.
Inspect Chamber and Water Level
- Ensure the chamber has sufficient water for the selected cycle.
- Low water can impede steam flow and air removal, leading to incomplete sterilization.
Examine Air Removal Valves
- Verify that vacuum and air removal valves are functioning and not obstructed.
- Manually check for smooth operation if accessible without disassembly.
Run a Test Cycle Without Load
- Empty the chamber and run a standard sterilization cycle to observe drain and vacuum behavior.
- Listen for abnormal sounds or delays in venting and draining.
Check External Filters
- Ensure any inlet or drain filters are clean and free from debris.
- Blocked filters can reduce flow and trigger air removal alarms.
If the Problem Persists
If drain lines, traps, valves, and filters are clear and the sterilizer still fails air removal or drainage checks:
- Remove the device from service.
- Label it Out of Service.
- Send for repair or bench evaluation.
Proper troubleshooting includes knowing when to escalate rather than risk incomplete sterilization.
Clinical Use Tip
- Do not run cycles with patients’ instruments inside if air removal is compromised.
- Move instruments to another sterilizer for patient safety.
- Troubleshoot only when the chamber is empty and safe to access.
Work Order Documentation (CCR Method)
CCR = Complaint, Cause, Resolution
Complaint
What was reported by the clinical staff.
Example:
User reports sterilizer cycles aborting with drain or vacuum system errors.
Cause
What was observed during troubleshooting.
Example:
Observed slow or blocked drainage, air removal delays, or valve resistance.
Resolution
What action was taken.
Example:
Cleared external drain lines, traps, and filters. Verified valve function. If unresolved, device labeled Out of Service and sent for repair.
Helpful Details to Include
- Drain line inspection results
- Trap or filter cleaning status
- Cycle behavior during empty chamber test
- Any unusual sounds or delayed venting
Final Thought
Logical troubleshooting starts with external, easily verified issues. Confirming proper drainage and air removal is essential for sterilizer safety. Escalate promptly if unresolved, ensuring patient instruments are never exposed to incomplete cycles. Clear CCR documentation supports both safety and regulatory compliance.
That is successful troubleshooting.