LG · Microwave

LG Microwave F11 error code

Difficulty: Hard · Cost: $100–$300 · Duration: Requires professional service

The F11 error means your LG microwave has detected a communication fault in the inverter — the component that controls and regulates the power delivered to the magnetron for cooking. When communication to the inverter fails the microwave cannot control cooking power correctly and stops operating. There are no user steps to resolve this error and the unit requires a professional repair service.

Common causes

Inverter communication circuit has malfunctioned or failed
Wiring between the inverter and the main control board is loose or damaged
Inverter board has developed a fault

How to fix it

1

Unplug the microwave for 1 minute and plug it back in to attempt a reset
2

If F11 returns after resetting the inverter needs inspection and replacement by a qualified technician