LG Refrigerator Error Code Er FF

Er FF means the control board did not receive a feedback signal from the freezer compartment's BLDC fan motor within 65 seconds during motor operation. The control board expects a Hall effect signal confirming the fan is spinning. When that signal never arrives, it logs Er FF. The fault can point to a wiring issue, a failed fan motor, or a problem with the drive IC or transistor in the motor control circuit.

Continued use is not recommended. The freezer BLDC fan circulates cold air through both the freezer and fresh food compartments. With this fan not operating, temperatures in both sections will climb and food safety is at risk within a few hours. Move perishables to another refrigerator or cooler and address the repair as quickly as possible.

Yes. If ice accumulates around the freezer fan blade, the blade cannot turn freely and the motor stalls. The control board then receives no feedback signal and displays Er FF. Unplug the refrigerator, remove any food, and allow the freezer to defrost completely with the doors open for several hours. Once the ice clears, plug the unit back in and check whether the error returns. If it does, the motor or electronics may be separately damaged and require replacement.

Start by unplugging the refrigerator and checking the wiring harness connector at the freezer BLDC fan motor for looseness, corrosion, or visible damage. Reconnect or repair the connector if needed, then restore power to see if the error clears. If the error persists, check for ice buildup around the fan blade and defrost manually if present. If the fan motor does not spin freely by hand or shows no continuity, replace the freezer fan motor. If the motor checks out but the error remains, the drive IC or transistor on the control board likely needs professional evaluation and replacement.

If the fix is simply reseating a loose wiring connector, there is no parts cost. A replacement LG freezer BLDC fan motor typically costs between $30 and $80 for the part. If the drive IC or transistor on the main control board is the culprit, a replacement control board can range from $100 to $250 depending on the model. Adding a service technician's labor, total repair costs commonly fall between $150 and $350 for a fan motor replacement and can exceed $400 for a control board repair.