Haier
Evaporator Coil Icing
Dehumidifier freezes up; evaporator coil becomes a solid block of ice.
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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
Low room temperature, Restricted airflow from dirty filter or coil, Low refrigerant charge, Faulty evaporator temperature sensor, Fan running too slowly
How to Fix / Troubleshooting
Safety first: Unplug the unit and allow all ice to melt before servicing. Place towels to catch water.
- Check room temperature: Use the dehumidifier only within the specified temperature range. Move it to a warmer room if necessary.
- Clean filter and coil: Wash the air filter and clean dust from the evaporator coil fins.
- Verify fan speed: Ensure the fan runs at full speed. A weak fan can cause icing.
- Inspect evaporator sensor: Make sure the coil thermistor is firmly attached to the coil. A loose sensor can prevent proper defrost control.
- Persistent icing: If icing continues despite good airflow and proper temperature, a sealed system or sensor issue may exist. Contact a technician for further diagnosis.
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Repair Difficulty
Medium
3/5
Required Part
Evaporator Temperature Sensor or Fan Motor
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