LG Range Error Code C-F2

C-F2 indicates that communication between the main control board and the touch (user interface) PCB has been interrupted. The two boards are unable to exchange data, which disrupts normal operation. The first step in diagnosing this code is confirming that all connectors on the sub PCB are properly and fully inserted.

It is not recommended to continue using the range while this fault is active. A communication break between the main board and touch board means the controls may not respond predictably, and the range may not execute or cancel commands as expected. Avoid use until the fault is diagnosed and resolved.

Repair costs vary depending on the root cause. If the fix is simply reseating a loose connector, you may only pay a service call fee, typically in the range of $75 to $150. If a wiring harness needs replacement, costs can rise to $150 to $300 including parts and labor. Replacing a touch PCB or main PCB can bring total repair costs into the $200 to $500 range or higher, depending on the specific model and part pricing.

In many cases, yes. Start by disconnecting power to the range, then access the control panel area and check that all wire harness connectors and ribbon cables running to the touch PCB are fully seated. If a connector was loose, reseating it and restoring power may clear the code. If the fault persists after confirming connector integrity, further diagnosis of the wiring harness or boards may require a technician.

Disconnecting power for several minutes may temporarily clear the code, but if the underlying cause is a loose connector, damaged harness, or faulty board, the error will return once power is restored. A reset is useful for confirming whether the fault is intermittent, but it is not a permanent fix without addressing the root cause.