Westinghouse Harvest / Defrost Release Failure

Ice maker freezes water but ice will not release from the evaporator plate.

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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

Insufficient harvest water flow, Failed harvest heater (if equipped), Scale buildup on evaporator, Faulty harvest timing on control board

How to Fix / Troubleshooting

Safety: Unplug the unit and close the water supply.

  • Clean evaporator: Descale the evaporator plate with an approved cleaner to remove mineral buildup that can cause sticking.
  • Check harvest water: Ensure the circulation pump delivers adequate water over the evaporator during harvest. Clean pump inlet and sump.
  • Test heater: If your model uses a harvest heater, test it for continuity and replace if open.
  • Control timing: If mechanical parts are fine but harvest still fails, the main control PCB may not be initiating harvest correctly and may need replacement.
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Repair Difficulty

Medium 3/5

Required Part

Evaporator Plate
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