f11
Moderate
LG · Ovens & Ranges
Communication error or oven ignition failure
Quick Answer
Error code F11 on your LG Ovens & Ranges means: Communication error or oven ignition failure. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Step 1: Press CLEAR/OFF and turn off the circuit breaker for 30 seconds.
2
Step 2: Restore power and try to preheat the oven.
3
Step 3: For gas ranges: Observe the igniter when starting the oven. If it glows weakly or has visible cracks, it needs replacement.
4
Step 4: Check the flame sensor for carbon buildup. Gently clean it with fine sandpaper or steel wool.
5
Step 5: Test the oven temperature sensor resistance (should be approximately 1,080-1,100 ohms at room temperature).
6
Step 6: If the igniter glows brightly but gas does not flow, the gas safety valve may be faulty.
7
Step 7: If all heating components test good, the electronic control board may need replacement.
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Oven igniter
Flame sensor
Oven temperature sensor
Gas safety valve
Electronic control board
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