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

1. undefined: Reset unit and enter Test Mode 1 (push test button 1 time). 2. undefined: Measure fan motor supply voltage at CON7 pins 8–5: expected 12V. If not 12V, replace Main PCB. 3. undefined: Open freezer door and check airflow — if windy, proceed to check fan control signal. 4. undefined: Measure fan control signal voltage at CON7 pins 6–5: expected 0V < voltage < 5V. If not in range, replace Main PCB. 5. undefined: Measure fan feedback voltage at CON7 pins 7–5: expected 0V < voltage < 5V. If not in range, replace fan motor. 6. undefined: Manually spin fan blade — if fan feels sticky or stiff, replace fan motor. 7. undefined: If fan runs freely and all voltages correct: explain to customer.

LG Refrigerators

Error Code FF E

Freezer Fan Error

Moderate

Address soon - your appliance may not work properly

Also displayed as: FF E

How to Fix

1
Reset unit and enter Test Mode 1 (push test button 1 time).
2
Measure fan motor supply voltage at CON7 pins 8–5: expected 12V. If not 12V, replace Main PCB.
3
Open freezer door and check airflow — if windy, proceed to check fan control signal.
4
Measure fan control signal voltage at CON7 pins 6–5: expected 0V < voltage < 5V. If not in range, replace Main PCB.
5
Measure fan feedback voltage at CON7 pins 7–5: expected 0V < voltage < 5V. If not in range, replace fan motor.
6
Manually spin fan blade — if fan feels sticky or stiff, replace fan motor.
7
If fan runs freely and all voltages correct: explain to customer.