Gaggenau
Defrost System Failure or Air Infiltration
Excessive frost or ice buildup on the evaporator and rear interior wall.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed defrost heater, Defective defrost sensor or thermostat, Door gasket leaks allowing moist air in, Door frequently left ajar
How to Fix / Troubleshooting
Safety: Unplug the unit before defrosting or accessing the evaporator. Do not use sharp tools to remove ice.
Steps:
- 1. Manually defrost: Turn off the cooler, open the door, and allow all ice to melt. Use towels to absorb water.
- 2. Inspect door gasket: Check for gaps, tears, or hardened sections. Replace if not sealing properly.
- 3. Check defrost components: Access the evaporator and test the defrost heater and sensor/thermostat for continuity and correct resistance. Replace faulty parts.
- 4. Verify door closure: Ensure shelves or bottles are not preventing the door from closing fully.
- 5. Monitor: After repair, monitor for several days. Recurring heavy frost indicates an unresolved defrost or sealing issue.
Note: Excess frost reduces cooling efficiency and can damage the fan; address promptly.
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Repair Difficulty
Medium
3/5
Required Part
Defrost Heater
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