LG Range Error Code FF

The FF code on an LG range indicates a control failure involving loss of redundant driver protection for the door lock motor. The control board monitors the door motor through two separate driver pathways, and when that redundancy is lost, the FF code is triggered. This is a safety-related fault that prevents the oven from operating until the issue is resolved. It most commonly points to a control board problem or a fault in the door lock motor circuit.

A reset using the CLEAR/OFF pad can clear the FF code if the fault was caused by a temporary heat-induced condition in the driver circuit. LG's procedure requires pressing CLEAR/OFF and then letting the oven cool for at least one hour before putting it back into operation. If the code returns after this process, the underlying component failure must be repaired before the error will clear permanently.

Repair costs depend on which component has failed. If the issue is a wiring connector or harness problem, the repair may involve minimal parts cost with the main expense being the service call and labor, typically in the range of $100 to $200. If the control board needs replacement, parts alone can range from $150 to $400 or more depending on the model, with total repair costs including labor often falling between $250 and $550. A door lock motor replacement is generally less expensive than a control board repair.

The first step you can take yourself is to press the CLEAR/OFF pad and allow the oven to cool for a full hour before attempting to restart it. If the error does not return, the fault may have been temporary and heat-related. However, if the FF code comes back after cooling and resetting, the repair involves diagnosing the control board or door lock motor, which requires disconnecting power and calling a qualified technician.

No, you should not continue using the range while the FF error is active. This code signals a failure in the door motor control circuit, which is part of the oven's safety system for door locking during high-temperature operation. LG's guidance is to disconnect power and call for service if the error repeats after the initial reset and cooling period. Continuing to operate the oven with this fault present could result in unpredictable door lock behavior.