Challenge
Evaporator Coil Icing
Dehumidifier runs but ice builds up heavily on the evaporator coil.
Advertisements
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.
Advertisements
Possible Causes
Room temperature too low, restricted airflow from dirty filter, low refrigerant charge, faulty defrost sensor or control
How to Fix / Troubleshooting
Safety: Unplug the unit before defrosting or cleaning.
Steps:
- Defrost completely: Turn off and unplug the unit. Allow all ice to melt; place towels to catch water.
- Clean filter and coils: Wash the filter and gently clean dust from the evaporator coil fins.
- Check room temperature: Use the unit only within its specified temperature range. Move to a warmer room if necessary.
- Inspect defrost sensor: Ensure the defrost sensor is properly attached to the coil and wiring is intact. Replace the defrost temperature sensor if suspected faulty.
Note: Persistent icing after these steps may indicate a refrigerant or compressor issue requiring a professional technician.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Defrost Temperature Sensor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements