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

1. undefined: 1. Reset the unit and enter TEST MODE 1 (push button 1 time). 2. undefined: 2. Measure fan motor supply voltage at CON3 8th Pin to 5th Pin — should be 12V. If not 12V, replace Main PCB. 3. undefined: 3. Open freezer door and check airflow — should be windy. 4. undefined: 4. If no airflow, check fan control signal at CON3 6th Pin to 5th Pin — should be between 0V and 5V. If out of range, replace Main PCB. 5. undefined: 5. If signal is correct, check fan feedback voltage at CON3 7th Pin to 5th Pin — should be between 0V and 5V. If out of range, replace the fan motor. 6. undefined: 6. Try to rotate fan by hand. If it feels sticky or has resistance, replace the fan motor. 7. undefined: 7. If all checks pass, explain to customer.

LG Refrigerators

Error Code FF E

Freezer Fan Error

Moderate

Address soon - your appliance may not work properly

How to Fix

1
1. Reset the unit and enter TEST MODE 1 (push button 1 time).
2
2. Measure fan motor supply voltage at CON3 8th Pin to 5th Pin — should be 12V. If not 12V, replace Main PCB.
3
3. Open freezer door and check airflow — should be windy.
4
4. If no airflow, check fan control signal at CON3 6th Pin to 5th Pin — should be between 0V and 5V. If out of range, replace Main PCB.
5
5. If signal is correct, check fan feedback voltage at CON3 7th Pin to 5th Pin — should be between 0V and 5V. If out of range, replace the fan motor.
6
6. Try to rotate fan by hand. If it feels sticky or has resistance, replace the fan motor.
7
7. If all checks pass, explain to customer.