STAIGIS Compressor Hard Start / Start Device Failure

Clicking noise from compressor area; compressor tries to start but shuts off repeatedly and cooler does not cool.

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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

Failed PTC start relay, Weak compressor drawing high current, Open or weak overload protector, Low line voltage to STAIGIS unit

How to Fix / Troubleshooting

Safety first: Unplug the cooler and allow the compressor to cool before handling. Sealed system work should be left to professionals.

Steps to address hard start:

  • 1. Verify voltage: Ensure the outlet provides stable voltage within the range specified on the rating label.
  • 2. Access start components: Remove the rear panel and the plastic cover on the compressor terminals.
  • 3. Inspect and test relay/overload: Remove the start relay and overload protector. Shake the relay gently; if it rattles, it is likely bad. Test both parts with a multimeter and replace if defective.
  • 4. Install new start kit: Fit a compatible "STAIGIS compressor start relay and overload" assembly, ensuring correct orientation on the compressor pins.
  • 5. Test operation: Reassemble, plug in, and monitor whether the compressor now starts and runs continuously.

Note: If the compressor still fails to start with new components, the compressor itself may be failing and requires professional replacement.

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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Start Relay and Overload Protector
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