Zanussi
Compressor hard-start or overload protection
Clicking or buzzing sound from the rear, compressor tries to start but stops repeatedly, poor or no cooling
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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
Weak compressor, Failed start relay/PTC, Overload protector tripping due to high current, Low mains voltage
How to Fix / Troubleshooting
Safety: Unplug the refrigerator before accessing the compressor area.
Steps:
- Check ventilation: Ensure there is adequate space around the fridge and the condenser is clean to reduce compressor load.
- Inspect start device: Remove and examine the start relay/PTC for signs of overheating. Replace if suspect.
- Allow cool-down: Leave the unit unplugged for 30 minutes to allow the compressor overload to reset, then reconnect and observe.
- Monitor operation: If the compressor still fails to start and clicks repeatedly after a new start device, the compressor itself may be failing and requires professional replacement.
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Repair Difficulty
Hard
4/5
Required Part
Compressor Start Relay / PTC
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