LG · Microwave

LG Microwave F13 error code

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

The F13 error means your LG microwave detected an abnormal voltage condition. This can be caused by an issue with the home's electrical supply or an internal component fault. There are no user steps to resolve this error and the unit requires a professional repair service.

Common causes

Abnormal voltage detected in the microwave's electrical circuit
Power surge or unstable home electrical supply
Internal voltage regulating component has malfunctioned

How to fix it

1

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

Make sure the microwave is plugged directly into a dedicated wall outlet — not a power strip or extension cord
3

If F13 returns after resetting contact a qualified technician to inspect the internal voltage components