Costway Compressor Hard Start / Overload Tripping

Clicking sound from the rear; compressor tries to start but shuts off repeatedly, little 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 PTC start relay, Faulty overload protector, Low supply voltage

How to Fix / Troubleshooting

Safety: Unplug the unit before accessing the compressor. High voltage and hot surfaces are present.

Steps:

  • Check voltage: Ensure the outlet provides correct voltage (typically 120V in North America). Low voltage can cause hard starting.
  • Inspect start components: Remove the cover on the compressor terminals. Test the PTC relay and overload protector for continuity. Replace if open or rattling.
  • Compressor test: Measure resistance between compressor terminals. If windings are open or shorted to ground, the compressor is defective and requires professional replacement.
  • Do not bypass safety devices: Never bypass the overload or relay; this can cause fire or compressor damage.
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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Overload and PTC Relay
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