Della Marta
Defrost System Failure or Air Leak
Excessive frost or ice buildup on the back wall or around the evaporator.
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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
Defective defrost heater, Failed defrost sensor or thermostat, Door gasket leak allowing moist air in, Blocked drain causing ice accumulation
How to Fix / Troubleshooting
Safety: Unplug the unit and protect the floor from water before defrosting.
- Manual defrost: Turn off and unplug the cooler. Leave the door open until all ice melts. Do not chip ice with sharp tools.
- Check door gasket: Inspect the gasket for gaps, tears, or warping. Replace the door gasket if it does not seal evenly.
- Inspect defrost components: Remove the interior rear panel to access the evaporator. Check the defrost heater and defrost sensor for continuity with a multimeter.
- Clear drain: Locate and clear the drain hole below the evaporator using warm water and a small brush.
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Repair Difficulty
Hard
4/5
Required Part
Defrost Heater
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