Dometic Compressor Short Cycling / Start Failure

Clicking sound from the rear of the wine cooler; compressor tries to start but shuts off repeatedly.

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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, low supply voltage, overheated compressor, blocked condenser reducing cooling

How to Fix / Troubleshooting

Safety: Unplug the unit before accessing the compressor area. Sealed system work should be done by professionals.

Steps:

  • Check voltage: Verify outlet voltage is within specification.
  • Clean condenser: Ensure the condenser coil is clean and the fan is working to prevent compressor overheating.
  • Inspect start device: Remove and test the compressor start relay/PTC. Replace if rattling, cracked, or open.
  • Compressor condition: If a new start device does not resolve the issue, the compressor may be failing internally and require replacement by a refrigeration technician.
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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Start Relay/PTC
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