Haier
Outdoor Coil Icing / Defrost System Issue
Outdoor unit coil heavily frosts over in heating mode and unit stops heating frequently.
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
Defective outdoor coil temperature sensor, Faulty defrost control on outdoor PCB, Low refrigerant charge, Very low ambient temperature with high humidity
How to Fix / Troubleshooting
Safety first: Turn off power before touching the outdoor unit. Ice can be sharp.
- Allow defrost: Let the unit complete its automatic defrost cycles. Do not manually chip ice off the coil.
- Clear obstructions: Remove snow, leaves, or debris blocking airflow.
- Check drain: Ensure meltwater can drain away and not refreeze on the coil.
- If icing is excessive or defrost never completes: A technician should test the outdoor coil sensor and defrost logic on the Haier outdoor PCB and verify refrigerant charge.
Advertisements
Repair Difficulty
Hard
4/5
Required Part
Outdoor Condenser Temperature Sensor
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements