LG Range Error Code F16

F16 indicates that the lower oven temperature exceeded 650°F continuously for two minutes during a standard cooking cycle, not during self-cleaning. LG's control system interprets this as an overheating fault and shuts down operation as a safety measure. The most common causes include a failed oven temperature sensor, a stuck relay on the control board, or a heating element that is not cycling off properly.

Disconnecting power for a few minutes may temporarily clear the F16 code, but it will return if the underlying cause has not been fixed. Because F16 is triggered by a sustained thermal condition, simply resetting the appliance does not address a faulty sensor, stuck relay, or failing element. A proper diagnosis is needed before the range can be safely used again.

Repair costs vary depending on the failed component. An oven temperature sensor is generally the least expensive fix, with parts typically ranging from $20 to $60 plus labor. Control board replacement is the most costly scenario, with parts often ranging from $150 to $350 or more depending on the model. If you hire a technician, expect an additional service call and labor fee on top of part costs.

No, you should not continue using the oven while F16 is active. The code indicates an uncontrolled overheating condition, and operating the oven in this state risks damage to internal components and poses a potential fire hazard. Disconnect power to the range until the fault has been properly diagnosed and repaired.

Start by measuring the oven temperature sensor resistance at connector CN61, pins 5 and 6, with the oven at room temperature. A properly functioning sensor reads approximately 1.09 kΩ at 75°F. If the reading is off, replace the sensor. If the sensor checks out, inspect the bake and broil elements for damage and test the control board relay for proper switching operation. A relay stuck in the closed position or a damaged element will require part replacement.