# U12 — Appliance fault and error codes

For U12, brand is Panasonic; appliance type is washer; meaning is The door being open, verified against its source on 2026-08-04.

- **Brand:** Panasonic
- **Appliance type:** washer
- **Error code:** U12
- **Meaning:** The door being open.

## What the source says

> the door being open.

## Source

- https://faultcodelab.com/data/error-codes.v1.json

Last verified: 2026-08-04. Review by: 2027-08-04.
Part of [Appliance fault and error codes](https://referencesource.org/appliance-fault-error-codes/).