TCL
Evaporator Icing / Frost Buildup
Dehumidifier frequently freezes up with ice on the evaporator coil.
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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, Faulty evaporator temperature sensor, Low refrigerant charge
How to Fix / Troubleshooting
Safety: Unplug the unit before defrosting. Do not chip ice with sharp tools.
- Defrost completely: Turn the unit off and allow all ice to melt. Place towels under the unit to catch water.
- Check room temperature: Ensure the room is within the recommended operating range. Move the unit to a warmer area if necessary.
- Clean filter and coils: Wash the filter and vacuum dust from the evaporator coil.
- Sensor check: If icing recurs quickly, test and replace the evaporator temperature sensor if it is misreading.
- Professional service: Persistent icing with good airflow may indicate low refrigerant and requires a licensed technician.
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Repair Difficulty
Hard
4/5
Required Part
Evaporator Temperature Sensor (NTC Probe)
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