Siemens Compressor Locked Rotor or Start Device Failure

Clicking sound every few minutes; compressor attempts to start but immediately stops; interior warms up.

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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

Seized compressor, Weak PTC start relay, Undersized or failed start capacitor, Low supply voltage

How to Fix / Troubleshooting

Safety first: Unplug the refrigerator before accessing the compressor area.

Steps:

  • 1. Verify voltage: Confirm the wall outlet voltage is within the specified range using a multimeter.
  • 2. Inspect start device: Remove the start relay/overload from the compressor and check for rattling or burn marks. Replace if suspect.
  • 3. Test compressor windings: Measure resistance between compressor terminals. If windings are open or shorted, the compressor is faulty.
  • 4. Professional replacement: A locked or electrically failed compressor requires replacement by a certified refrigeration technician.

Note: Repeated clicking without cooling should be addressed promptly to avoid further damage.

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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Start Relay / Overload Assembly
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