E19
KitchenAid
Defrost or De-Ice Cycle Failure
Ice maker indicates defrost or de-ice error; ice builds up on evaporator
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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 hot gas valve (if equipped), control board defrost logic fault, thermistor not detecting end of freeze, heavy scale preventing proper harvest
How to Fix / Troubleshooting
Warning: Some de-ice functions involve hot gas or sealed system components; complex repairs require a certified technician.
- Manually defrost: Unplug the unit, remove ice from the evaporator plate, and allow it to fully defrost. Do not use sharp tools.
- Clean evaporator: Use ice machine cleaner to remove scale from the evaporator plate and surrounding areas.
- Check thermistor: Test the evaporator thermistor for proper resistance. Replace if out of spec.
- Observe cycles: After restoring power, watch a full freeze and harvest cycle. If ice continues to build excessively, contact a technician to test the hot gas valve and control board.
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Repair Difficulty
Professional Required
5/5
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