GE Appliances
Coil Icing / Defrost Failure
Dehumidifier frost builds up on the evaporator coil and does not melt between cycles
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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
Room temperature too low, Defective defrost sensor, Poor airflow from dirty filter or failed fan, Low refrigerant charge
How to Fix / Troubleshooting
Safety: Unplug the unit and allow ice to melt before working near the coil.
Steps to address icing:
- Check room temperature: Move the unit to a warmer room if below 65°F (18°C).
- Clean filter and coils: Ensure maximum airflow by cleaning the filter and evaporator coil.
- Verify fan operation: Confirm the fan runs at full speed when the unit is on.
- Inspect defrost sensor: Ensure the sensor is properly attached to the coil and wiring is intact. Replace if faulty.
- Professional service: If icing persists with good airflow and a new sensor, the refrigerant charge may be low; contact a technician.
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Repair Difficulty
Hard
4/5
Required Part
Defrost Sensor / Fan Motor
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