# LG microwaves error codes | Costolio

URL: https://costolio.com/home/appliances/lg/lg-microwaves/
Updated: 2026-11-02

# LG microwaves error codes

1 microwave error code for LG microwaves, what each one means and what to try, paraphrased from LG's own source. Codes vary by model, so confirm in your own manual.

## All codes

- [F3](https://costolio.com#f3) Foreign substances around the touch button panel can cause F-3 errors.

## F3

What it means: Foreign substances around the touch button panel can cause F-3 errors. This one often needs a licensed technician.

### What to try

- Wipe off any foreign substances from the touch button panel and check again.
- Unplug the electrical cord and plug it back in to check if the same error reappears.
- If the symptoms persist, call for an inspection service.

### Source

- [LG Microwave: troubleshooting an F3 error (LG US Help Library)](https://www.lg.com/us/support/help-library/lg-microwave-troubleshooting-an-f3-error--20153194254082) (checked 2026-11-02)

Brand names and model names are trademarks of their owners. Costolio is not affiliated with or endorsed by any manufacturer.

## Related

- [Samsung microwaves error codes](https://costolio.com/home/appliances/samsung/samsung-microwaves/)
- [LG refrigerators error codes](https://costolio.com/home/appliances/lg/lg-refrigerators/)
- [LG ranges error codes](https://costolio.com/home/appliances/lg/lg-ranges/)
- [GE microwaves error codes](https://costolio.com/home/appliances/ge/ge-microwaves/)
- [LG washers error codes](https://costolio.com/home/appliances/lg/lg-washers/)
- [LG dryers error codes](https://costolio.com/home/appliances/lg/lg-dryers/)
- [All appliance error codes](https://costolio.com/home/appliances/)