Sub-Zero
Short Cycling
Ice maker cycles on and off frequently without producing much ice.
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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
Faulty thermistor readings, Control board logic error, Overheating due to dirty condenser, High ambient temperature
How to Fix / Troubleshooting
Safety: Disconnect power before cleaning or accessing controls.
Steps to address short cycling:
- 1. Clean condenser coil: Remove dust and lint to reduce overheating.
- 2. Check ambient conditions: Ensure the unit is not exposed to direct sunlight or near heat sources.
- 3. Inspect thermistors: If accessible, verify that cabinet and evaporator thermistors are properly mounted and not touching extremely hot or cold surfaces.
- 4. Control reset: Disconnect power for 10 minutes to reset the control. If short cycling continues, a technician should test sensors and the control board.
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Repair Difficulty
Hard
4/5
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