Error Code Er FF

Reset the refrigerator: Unplug the refrigerator from the wall outlet. Wait 5 minutes. Plug it back in. If the code clears and the fan starts spinning, monitor it for 24 hours to confirm the fix holds.

Check for ice buildup on the fan: Open the freezer door. Remove the rear evaporator cover panel by unscrewing the Phillips-head screws (usually 4-6 screws). Look at the fan blade behind the cover. If ice surrounds the blade, use a hair dryer on low heat to melt it. Keep the dryer 6 inches from plastic parts to avoid warping. Reinstall the cover and restore power.

Spin the fan blade by hand: With the evaporator cover removed and the unit unplugged, try spinning the fan blade with your finger. It should rotate freely with minimal resistance. If it grinds, wobbles, or locks up, the motor bearings are shot. Replace the evaporator fan motor (LG part number varies by model — check your model tag inside the fresh food compartment).

Test the fan motor with a multimeter: Disconnect the fan motor wire harness. Set your multimeter to the 200-ohm range. Place the probes on the two motor terminals. A good motor reads between 100 and 300 ohms. An open-line (OL) reading or zero ohms means the motor is dead. Replace it.

Inspect the wiring harness: Follow the wire harness from the fan motor connector back toward the main control board. Look for pinched, frayed, or cracked wires. Pay close attention where the harness passes through the evaporator cover cutout. Repair any damaged wires with heat-shrink butt connectors rated for low-temperature use.