# E23 — Appliance fault and error codes

For E23, brand is Bosch; appliance type is Dishwasher; meaning is There is an issue with the drain pump. This happens when the drain pump is blocked, clogged, or faulty, verified against its source on 2026-08-04.

- **Brand:** Bosch
- **Appliance type:** Dishwasher
- **Error code:** E23
- **Meaning:** There is an issue with the drain pump. This happens when the drain pump is blocked, clogged, or faulty.

## What the source says

> See more Error Code E23 There is an issue with the drain pump. This happens when the drain pump is blocked, clogged, or faulty. Contact Bosch Customer Support at 1-800-944-2904 for assistance. Visit this <https://www.bosch-home.com/us/owner-support/get-support/support-selfhelp-dishwasher-error-e23> Bosch Dishwasher Error Code e23 Guide to learn more.

## Source

- https://www.bosch-home.com/us/owner-support/dishwashers/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/).