F5
Dometic
Compressor Overload or Current Fault
Wine cooler displays F5; compressor may short-cycle or fail to start.
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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
Locked compressor, failed compressor start relay/PTC, high supply voltage or surge damage, defective main control PCB current sensing circuit
How to Fix / Troubleshooting
Safety: Unplug the unit. Sealed system work should be done only by qualified technicians.
Steps:
- Check supply voltage: Verify that the outlet voltage is within Dometic specifications using a multimeter.
- Inspect start device: Remove the cover on the compressor terminals and inspect the start relay/PTC for burning or cracking. Replace if damaged.
- Compressor test: Measure resistance between compressor terminals to check for shorts to ground or open windings. A locked or shorted compressor requires professional replacement.
- Control board: If the compressor and start device are good but F5 persists, the main control PCB current sensing may be faulty and the board should be replaced.
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Repair Difficulty
Professional Required
5/5
Required Part
Compressor Start Relay/PTC
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