Er IF
LG
Evaporator Fan Error (Communication/Feedback)
Display alternates between Er and IF; interior air circulation seems weak and temperature is uneven.
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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
Evaporator fan motor failure, Ice blocking fan, Broken fan feedback wire, Main PCB fan control failure
How to Fix / Troubleshooting
Safety: Disconnect power before removing interior panels.
Steps:
- 1. Remove interior rear panel: Access the evaporator and fan assembly inside the cabinet.
- 2. Check for ice: Look for ice buildup around the fan. If present, defrost the unit completely and check the defrost system.
- 3. Inspect fan wiring: Ensure all wires to the fan motor are intact and connected. Look for broken or pinched wires.
- 4. Test fan motor: Measure resistance across the motor leads. Replace the motor if readings are out of spec or open.
- 5. Replace components: Install a new evaporator fan motor if defective. If Er IF persists with a new motor and good wiring, replace the main control board.
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Repair Difficulty
Medium
3/5
Required Part
Evaporator Fan Motor
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