LG Oven / Range F11 code: Communication error
The range's control boards (such as the main board and the display) are not communicating properly.
Most common causes
- Loose wiring between control boards
- Faulty display board
- Faulty main control board
- Power surge
What you can safely check yourself
- Press Clear/Off and try again
- Turn the range's circuit breaker off for 30 seconds, then back on
Unplug the appliance before moving or cleaning anything. Do not open panels, touch gas connections or bypass safety switches.
Checked against: lg.com. Meanings can vary by model; check your owner’s manual.