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

1. undefined: Reset the unit. Enter Test Mode 1 (press test button 1 time). Open the freezer door and check for airflow at the evaporator duct. If airflow is present (windy), go to step 3. 2. undefined: If no airflow detected, go to step 4. 3. undefined: Check fan motor for mechanical binding: rotate fan blade by hand. If blade feels sticky or binds, replace the fan motor. 4. undefined: Measure fan motor voltage at CON4, 20th Pin to 19th Pin. Expected: 11.4–12.6 V. If voltage is not in range, replace the main PCB. 5. undefined: Measure fan feedback voltage at CON4, 18th Pin to 19th Pin. If voltage is 0 V or 5 V (not oscillating), replace the fan motor. 6. undefined: Measure fan PWM signal voltage at CON4, 17th Pin to 19th Pin. If voltage is 0 V or 5 V (not oscillating), replace the main PCB. 7. undefined: If all checks pass, explain normal operation to customer.

LG Refrigerators

Error Code E FF

Freezer Fan Motor Error

Moderate

Address soon - your appliance may not work properly

How to Fix

1
Reset the unit. Enter Test Mode 1 (press test button 1 time). Open the freezer door and check for airflow at the evaporator duct. If airflow is present (windy), go to step 3.
2
If no airflow detected, go to step 4.
3
Check fan motor for mechanical binding: rotate fan blade by hand. If blade feels sticky or binds, replace the fan motor.
4
Measure fan motor voltage at CON4, 20th Pin to 19th Pin. Expected: 11.4–12.6 V. If voltage is not in range, replace the main PCB.
5
Measure fan feedback voltage at CON4, 18th Pin to 19th Pin. If voltage is 0 V or 5 V (not oscillating), replace the fan motor.
6
Measure fan PWM signal voltage at CON4, 17th Pin to 19th Pin. If voltage is 0 V or 5 V (not oscillating), replace the main PCB.
7
If all checks pass, explain normal operation to customer.