# F21 — Appliance fault and error codes

For F21, brand is Bosch; appliance type is washer; meaning is Motor drive error indicating the control board cannot communicate with or turn the motor, verified against its source on 2026-08-04.

- **Brand:** Bosch
- **Appliance type:** washer
- **Error code:** F21
- **Meaning:** Motor drive error indicating the control board cannot communicate with or turn the motor.

## What the source says

> <https://axisrepair.com/error-codes/bosch-washer-f21/> F21 washer Motor drive error indicating the control board cannot communicate with or turn the motor.

## Source

- https://axisrepair.com/error-codes/

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