LG Refrigerator Error Code F

The F code on an LG refrigerator indicates a Freezer FAN BLDC Motor Failure. The refrigerator's control board (MICOM) did not detect a feedback signal from the freezer evaporator fan motor for 65 seconds or longer. This can be caused by a restrained or seized fan, a disconnected wiring harness, or a failed drive IC or transistor. The freezer fan is critical for circulating cold air, so this fault should be addressed promptly.

Operating the refrigerator with an active F code means the freezer fan is not running, which will cause temperatures in both the freezer and fresh food compartments to rise. Food safety becomes a concern fairly quickly, especially in the freezer. It is best to address the fault as soon as possible and avoid storing perishable food until the fan is confirmed to be operating correctly.

A power reset may temporarily clear the F code from the display, but the code will return if the underlying hardware problem is not resolved. Because the fault triggers after 65 seconds of missing fan feedback, the MICOM will log the error again as soon as the same condition is detected. A reset is useful for confirming whether a fault is intermittent, but it is not a repair. The fan motor, wiring, and drive components should be inspected to find and correct the actual cause.

Some causes of the F code are DIY-friendly. Checking for ice buildup around the fan blade, manually defrosting the freezer compartment, and inspecting the wiring harness for loose connectors are all tasks a careful homeowner can perform. If the motor itself is seized or the control board drive IC has failed, those repairs typically require part replacement and some comfort with appliance disassembly. Entering Test Mode 1 and checking for airflow at the freezer fan is a good first step before purchasing any parts.

Repair costs vary depending on the root cause. A new freezer evaporator fan motor typically costs between $30 and $100 for the part alone. If the main control board needs replacement due to a failed drive IC or transistor, board costs can range from $100 to $250 or more. Adding professional labor generally brings the total service cost to somewhere between $150 and $400 depending on your location and the specific repair needed.