Café
Defrost System Failure
Ice buildup on back wall of freezer and poor cooling in both compartments.
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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
Open defrost heater, Failed defrost thermostat, Faulty defrost control on main board, Clogged defrost drain causing refreeze
How to Fix / Troubleshooting
Safety first: Unplug the refrigerator before accessing the evaporator and heater. Avoid sharp tools on the coil.
- 1. Manual defrost: Remove drawers and rear panel, then melt all ice from the evaporator and drain trough using warm air.
- 2. Test heater and thermostat: With a multimeter, check continuity of the defrost heater and thermostat. Replace any open components.
- 3. Clear drain: Flush the defrost drain with warm water until it flows freely to the drain pan.
- 4. Control board check: If components test good but defrost never occurs, the main control board may need replacement.
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Repair Difficulty
Hard
4/5
Required Part
Defrost Heater
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