Gree Compressor Not Starting

Unit powers on but compressor never starts; fan runs continuously and no water is collected.

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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 compressor start relay or PTC, Open compressor winding, Faulty overload protector, Defective main control board relay

How to Fix / Troubleshooting

Safety: Unplug the unit. Capacitors and compressor terminals can carry dangerous voltage.

Steps:

  • Listen for clicks: When turning the unit on, listen for a click from the compressor relay. No click may indicate a control issue.
  • Access compressor: Remove the rear or side panel to reach the compressor terminal cover. Carefully remove the cover.
  • Check start components: Inspect the PTC start relay and overload protector for burn marks or cracks. Replace if damaged.
  • Winding test: With a multimeter, test resistance between compressor terminals (C-R, C-S, R-S). Infinite or zero readings indicate a bad compressor.
  • Control board: If compressor and start components test good, the main control board relay may not be energizing and may need replacement.
  • Technician: Compressor replacement requires specialized tools and should be done by a licensed technician.
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Repair Difficulty

Professional Required 5/5

Required Part

Compressor Start Relay (PTC)
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