AEG
Evaporator Icing / Defrost Failure
Dehumidifier coils freeze over completely during operation
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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, Fan not running at full speed, Low refrigerant charge
How to Fix / Troubleshooting
Safety: Unplug the unit before defrosting. Do not chip ice with sharp tools.
- Defrost: Turn off and unplug the dehumidifier. Allow all ice to melt naturally. Place towels to catch water.
- Check ambient temperature: Use the unit only within the recommended temperature range. Move it to a warmer room if necessary.
- Clean filter and check fan: Ensure the air filter is clean and the fan is running at normal speed.
- Test defrost sensor: Inspect and test the defrost NTC sensor as described in earlier entries. Replace if faulty.
- Professional check: If icing persists despite proper conditions and a good sensor, have a technician check for low refrigerant or system restrictions.
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Repair Difficulty
Medium
3/5
Required Part
Defrost NTC Sensor
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