How do I fix error code IF E on a LG refrigerators?

1. undefined: Reset unit and enter Test Mode 1 (push test button 1 time). 2. undefined: Measure icing fan motor supply voltage at CON3 pins 12–9: expected 12V. If not 12V, replace Main PCB. 3. undefined: Open freezer door and check airflow — if windy, proceed to check control signal. 4. undefined: Measure fan control signal voltage at CON3 pins 10–9: expected 0V < voltage < 5V. If not in range, replace Main PCB. 5. undefined: Measure fan feedback voltage at CON3 pins 11–9: expected 0V < voltage < 5V. If not in range, replace icing fan motor. 6. undefined: Manually spin icing fan — if sticky, replace fan motor. 7. undefined: If all voltages and airflow are normal: explain to customer.

LG Refrigerators

Error Code IF E

Icing Fan Error

Moderate

Address soon - your appliance may not work properly

Also displayed as: IF E

How to Fix

1
Reset unit and enter Test Mode 1 (push test button 1 time).
2
Measure icing fan motor supply voltage at CON3 pins 12–9: expected 12V. If not 12V, replace Main PCB.
3
Open freezer door and check airflow — if windy, proceed to check control signal.
4
Measure fan control signal voltage at CON3 pins 10–9: expected 0V < voltage < 5V. If not in range, replace Main PCB.
5
Measure fan feedback voltage at CON3 pins 11–9: expected 0V < voltage < 5V. If not in range, replace icing fan motor.
6
Manually spin icing fan — if sticky, replace fan motor.
7
If all voltages and airflow are normal: explain to customer.