LG Cooktop Error Code F

The F code means the cooktop's induction zone has detected unsuitable cookware or has determined that the cookware is not placed correctly over the coil. The affected zone will not heat until the condition is resolved. This is most often a cookware compatibility or placement issue rather than a hardware failure.

Powering the cooktop off at the circuit breaker for about 30 seconds and then restoring power can clear the displayed code, but the F error will return immediately if the underlying cause has not been corrected. The cooktop will continue to block heating on that zone until compatible, properly centered cookware is detected. Address the cookware issue first before attempting a reset.

In most cases the F code costs nothing to resolve because it requires only a change in cookware or adjustment of pan placement. If a hardware fault such as a failed control board is responsible for a persistent F code, repair costs typically range from around 150 dollars to over 400 dollars depending on the specific board, labor rates in your area, and whether the unit is still under warranty.

Start by confirming your cookware is magnetic by testing it with a refrigerator magnet pressed to the base. If the magnet sticks firmly, the material is compatible. Next, center the pan squarely over the cooking zone markings and make sure the pan base is large enough to cover the zone. If the error clears, no further action is needed. If it persists with confirmed compatible cookware, a technician should inspect the detection circuitry.

The F code is a protective response, not a hazard warning. The affected cooking zone is simply disabled and will not generate heat until the condition is corrected. Other zones on the cooktop are unaffected and can be used normally. There is no safety risk associated with the F code itself.