Bosch dishwasher E23: drain pump fault
Bosch’s error-code guide identifies E23 as a drain-pump issue and directs owners to Bosch support rather than deeper DIY testing.
What this guide covers
Error codes: E23, E-23
This guide follows a structured decision tree built from manufacturer troubleshooting information. It does not assume that the most commonly replaced part is the failed part, and it does not show an exact-fit replacement part unless model compatibility has been independently verified.
Continue this exact diagnostic
Safe troubleshooting sequence
This reviewed path begins with a direct owner-safe action or status check rather than a branching question. Follow the step below, then use the interactive diagnostic if the condition persists.
- Stop repeated reset attemptsA recurring pump fault needs diagnosis.
- Do not access energized pump wiringKeep the owner path external.
- Contact Bosch/serviceProvide the full model and E23 code.
Reviewed outcomes
Bosch directs E23 to support/service
E23 points to the drain-pump system, but the code alone does not prove which component has failed.
Evidence strength: Strong
When professional diagnosis is the safer next step
E23 points to the drain-pump system, but the code alone does not prove which component has failed.
Appliance Verdict stops before energized electrical testing, gas-system work, sealed-system work, and other checks that can create unnecessary risk. A technician can use the model, issue, and completed checks from the interactive diagnostic as a starting point.
Repair or replace?
A diagnosis and a repair decision are different questions. Once you have a real repair quote, compare the total repair cost with the all-in price of a comparable replacement. Warranty or protection-plan coverage, appliance age, reliability history, efficiency, and likely future repairs can all matter. Appliance Verdict’s interactive result includes a transparent cost comparison rather than a black-box replacement recommendation.
Manufacturer sources
Dataset reviewed through 2026-09-11. Appliance Verdict is independent and is not endorsed by the manufacturers cited. Always follow the exact owner or service documentation for your model.
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