LG Refrigerator Error Code F1 F3

F1 F3 indicates that the freezer BLDC fan motor is not sending a position signal back to the control board for more than 65 seconds during operation. This means the control board cannot confirm the fan is actually spinning. The freezer fan is critical for circulating cold air, and without it, temperatures in the freezer and fresh food sections can rise. The refrigerator will automatically stop and restart the fan every 30 minutes to check if the issue clears.

Continued use is not recommended without addressing the fault. Without a functioning freezer fan, air circulation is compromised and freezer temperatures will likely rise, putting stored food at risk. The refrigerator does attempt to restart the fan every 30 minutes, but if the fault persists, you should not rely on the unit to maintain safe food temperatures.

Repair costs vary depending on the root cause. A replacement freezer fan motor typically ranges from $30 to $80 for the part alone. If professional labor is required, total repair costs including diagnosis and installation generally fall in the range of $150 to $300. A main control board replacement, if needed, can push costs higher, often ranging from $200 to $400 total.

Some causes are DIY-friendly, particularly if the fan blade is blocked by ice. Manually defrosting the freezer by unplugging the refrigerator for 24 to 48 hours can clear an ice obstruction and resolve the error. If the issue is a failed fan motor or damaged wiring, those repairs require basic appliance repair skills, a multimeter for testing, and sourcing a compatible replacement motor.

A manual reset, such as unplugging the unit for a few minutes, may temporarily clear the displayed code, but the error will return if the underlying hardware problem is not fixed. The MICOM is designed to automatically reset if the fan returns to normal operation during one of its 30-minute re-check cycles. A persistent error after multiple cycles points to a component that needs inspection or replacement.