Whynter
Evaporator Freeze‑Up
Evaporator coil freezes over with ice during operation, reducing airflow and cooling.
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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
Dirty air filter, Restricted airflow, Low fan speed due to failing motor, Low refrigerant charge, Thermistor not sensing coil temperature correctly
How to Fix / Troubleshooting
Safety: Unplug the unit. Do not use sharp tools to remove ice.
- Thaw coil: Turn the unit off and allow all ice to melt. Place towels under the unit to catch water.
- Clean filter and coil: Wash the filter and clean the evaporator coil fins.
- Check fan speed: Ensure the indoor fan runs at normal speed. If slow, inspect and replace the indoor fan motor or capacitor.
- Sensor check: Verify the evaporator thermistor is attached correctly to the coil.
- Refrigerant diagnosis: If freezing recurs despite good airflow and sensor placement, have a licensed technician check for low refrigerant or metering issues.
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Repair Difficulty
Hard
4/5
Required Part
Indoor Fan Motor
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