SPT
Control Board Not Activating Cooling Circuit
Unit powers on but does not make any ice; compressor and fan do not run.
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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
Defective main control board relay, Loose compressor wiring, Failed start relay or overload on compressor, Faulty mode or start button contacts
How to Fix / Troubleshooting
Safety first: Unplug the unit before removing panels.
- Confirm settings: Make sure the unit is not in standby and that an ice size is selected.
- Listen for relays: When turning the unit on, listen for a click from the control board. No click may indicate a bad relay.
- Inspect compressor wiring: Access the compressor compartment and check that all connectors to the compressor, start relay, and overload protector are secure.
- Check start relay (advanced): Remove the start relay from the compressor and shake it gently; if it rattles or smells burnt, replace it.
- If compressor and fan never energize: The main control board is likely defective and should be replaced.
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Repair Difficulty
Hard
4/5
Required Part
Compressor Start Relay
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