Whirlpool
Evaporator Coil Freeze-Up
Unit ices up; evaporator coil becomes covered in ice and airflow drops significantly.
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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, blocked return air, low fan speed or failing fan motor, low refrigerant charge, thermostat set too low in cool ambient conditions
How to Fix / Troubleshooting
Safety: Turn the unit off and unplug it before defrosting. Do not chip ice with sharp tools.
Steps:
- Defrost: Leave the unit off with the front cover open until all ice melts. Place towels to catch water.
- Clean filter and coil: Wash the filter and clean the evaporator coil.
- Check airflow: Ensure supply and return vents are not blocked and that the fan runs at normal speed.
- Adjust settings: Avoid setting the thermostat extremely low, especially when room temperature is already cool.
If icing continues after these steps, a low refrigerant charge or control issue may be present and requires professional service.
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Repair Difficulty
Medium
3/5
Required Part
Indoor Fan Motor / Air Filter
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