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

1. undefined: Reset the unit and enter Test Mode 1. Check fan motor supply voltage at CON4 pins 12–11; expected 11.4–12.6V. If not in range, replace Main PCB. 2. undefined: Open freezer door and check for air flow in ice compartment. If no air flow, proceed to step 3. 3. undefined: Rotate fan blade by hand. If it feels sticky/binding, replace the fan motor. 4. undefined: Check fan feed-back voltage at CON4 pins 10–11; expected 0V or 5V. If not 0V or 5V, change the fan motor. 5. undefined: Check fan PWM voltage at CON4 pins 9–11; expected 0V or 5V. If not 0V or 5V, replace Main PCB. 6. undefined: If all checks are within spec, explain to customer.

LG Refrigerators

Error Code E IF

Ice-making compartment BLDC fan motor defect

Moderate

Address soon - your appliance may not work properly

How to Fix

1
Reset the unit and enter Test Mode 1. Check fan motor supply voltage at CON4 pins 12–11; expected 11.4–12.6V. If not in range, replace Main PCB.
2
Open freezer door and check for air flow in ice compartment. If no air flow, proceed to step 3.
3
Rotate fan blade by hand. If it feels sticky/binding, replace the fan motor.
4
Check fan feed-back voltage at CON4 pins 10–11; expected 0V or 5V. If not 0V or 5V, change the fan motor.
5
Check fan PWM voltage at CON4 pins 9–11; expected 0V or 5V. If not 0V or 5V, replace Main PCB.
6
If all checks are within spec, explain to customer.