Lanbo Compressor Hard Start / Start Device Failure

Clicking sound every few minutes; compressor tries to start but shuts off quickly.

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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 or failed start relay/PTC, Faulty overload protector, Locked compressor, Low line voltage

How to Fix / Troubleshooting

Unplug the unit before touching the compressor or electrical components.

  • 1. Verify outlet voltage:
    • Use a multimeter to ensure the outlet provides stable 110–120V (in North America).
  • 2. Inspect start relay and overload:
    • Remove the cover on the side of the compressor.
    • Pull off the start relay/PTC and overload; check for burn marks or rattling pieces.
  • 3. Replace start components:
    • Install a new Lanbo compressor start relay and overload kit.
  • 4. If compressor still clicks and does not run:
    • The compressor may be mechanically locked and require professional sealed-system service or replacement.
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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Start Relay/PTC
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