LG oven F11 code: communication error

The control boards in the range have stopped communicating with each other, for example the display board and the main control board. A loose wire harness, a power surge or a failing board is the usual cause.

Likely causes

Listed from most to least common.

1. Loose or damaged wire harness between boards
2. Power surge or brief power interruption
3. Failed display or main control board
4. Heat damage to wiring after self clean

How to fix the F11 code

Unplug the oven or switch it off at the breaker before removing any panel or filter.

1. 1

   Step 1: Clear the code

   Press Clear/Off and try the original function again.

2. 2

   Step 2: Reset power at the breaker

   Switch off the breaker for the range for 5 minutes, then switch it back on.

Parts that may need replacing

Check your model number on the label inside the door or on the back before ordering.

• LG range main control boardCheck prices

When to call a technician

If F11 comes back after a power reset, call a technician. Checking the wiring between boards means opening the range while it is disconnected from power.

A typical repair for this code costs $200–$450 in the US, including parts and labor. Prices vary by area and model.

Models this applies to

• Electric and gas ranges (LRE, LRG, LSE, LSG series)
• InstaView and ProBake slide-in ranges
• Induction ranges (LSIL, LSIS series)
• Single and double wall ovens (WSEP, WDEP series)

Codes can differ slightly between models. Your owner's manual is the final word and is available from LG support.

Common questions