Antarctic Star Compressor Circuit Not Engaging

Unit powers on but does not make any ice; compressor and fan never start

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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 main control board relay, open compressor start relay, defective compressor overload protector, disconnected compressor harness

How to Fix / Troubleshooting

Safety: Unplug the ice maker before accessing the compressor compartment.

Steps:

  • Listen for operation: After pressing power, listen for the condenser fan and compressor. If both are silent, suspect control or relay issues.
  • Check harness: Remove the rear panel and verify the compressor harness is firmly connected to the compressor, relay, and overload.
  • Test relay/overload: With a multimeter, check continuity through the start relay and overload protector. Replace if open or heat-damaged.
  • Control board output: If you are qualified, check for compressor voltage at the board output when the unit should be cooling. No output with correct input suggests a bad board.
  • Replace board or relay: Replace the failed component with an Antarctic Star-compatible part and retest.
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Repair Difficulty

Hard 4/5

Required Part

Compressor Start Relay
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