Gorenje
Automatic Defrost System Failure
Heavy frost buildup on the evaporator and back wall; airflow reduced; cooling performance drops over time.
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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 thermal fuse, Faulty defrost sensor (NTC), Main PCB not initiating defrost
How to Fix / Troubleshooting
Safety: Unplug the freezer before accessing the evaporator and electrical components. Avoid damaging refrigerant lines.
- Manual defrost: Remove food, open the door, and allow all ice to melt. Use towels to collect water.
- Access defrost components: Remove the inner rear panel to expose the evaporator, heater, and defrost thermostat/fuse.
- Test heater and thermostat: Use a multimeter to check continuity of the heater and defrost thermostat/fuse. Replace any open components.
- Check defrost sensor: Measure resistance of the evaporator NTC and compare to expected values. Replace if out of range.
- Control board: If all components test good but defrost never occurs, the main PCB may not be initiating defrost and may need replacement.
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Repair Difficulty
Hard
4/5
Required Part
Defrost Thermostat
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