Bompani
Defrost System Malfunction
Ice buildup on the back wall of the freezer or around the evaporator cover
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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 thermostat or sensor,Control board not initiating defrost,Door gasket leaks allowing moist air in
How to Fix / Troubleshooting
Safety: Unplug the refrigerator before defrosting or accessing electrical components.
Steps:
- 1. Manual defrost: Empty the freezer and unplug the unit. Leave the door open until all ice melts. Use towels to absorb water.
- 2. Inspect door seals: Replace damaged gaskets to reduce moisture ingress.
- 3. Access evaporator: Remove the rear freezer panel to inspect the evaporator, heater, and thermostat.
- 4. Test heater and thermostat: With a multimeter, check continuity of the heater and defrost thermostat. Replace any open components.
- 5. Control board: If heater and thermostat are good but frost returns, the control board may not be initiating defrost cycles and may need replacement.
Warning: Do not chip ice with sharp tools; you can puncture refrigerant lines.
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Repair Difficulty
Hard
4/5
Required Part
Defrost Heater Assembly
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