F10Serious
Haier Refrigerator F10 Error Code
The defrost heater is not operating, causing excessive frost buildup on the evaporator.
Common causes
- Faulty defrost heater element
- Blown thermal fuse or bi-metal
- Faulty defrost relay on control board
How to fix it
- Unplug refrigerator and check defrost heater for continuity with a multimeter.
- Check the thermal fuse and bi-metal switch for continuity; replace if open.
- Inspect wiring connections to the heater.
⚠ When to call a pro: If the heater, thermal fuse, and bi-metal all test good, the control board may need replacement.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.