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ALAS Appliance Service

Bosch Dishwasher E23: A Drain Pump Fault

Unlike E22 or E24, Bosch gives owners no checklist for E23. The code points straight at the drain pump, and the pump may simply be jammed or may have failed.

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How Bosch Describes E23

Bosch’s article says an E23 error code indicates there is an issue with the drain pump, and that this happens when the drain pump is blocked, clogged or faulty. It lists no owner steps and directs owners to Bosch Customer Support. Because a blockage and a failed pump show the same code, the first thing worth ruling out is debris. Bosch’s E25 article shows how to remove the filter and pump cover to look into the pump; if the opening is clear and E23 remains, the pump needs electrical testing. Source: Bosch E23 article (opens in a new tab).

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Serving homes across Dallas–Fort Worth

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90 days, 6 months for members

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Safe Checks Before You Call

Power off at the breaker before you touch anything inside the tub.

1

Clear the filter area

Lift out the filter and rinse it so you can see the pump cover underneath.

2

Look for a blockage

Using the pump-cover method from Bosch’s E25 article, remove the cover and pick out anything lodged in the pump.

3

Restore power once

Refit the cover and filter, switch the breaker on and run a drain. If E23 returns, stop and book service.

Bosch sends E23 straight to support. Out of warranty, we test the pump and its wiring and replace what has failed.→

When to Call a Technician

Schedule a repair if:

  • E23 with a clear pump opening
  • No pump sound at all
  • A burning or electrical smell
  • E23 after a power surge

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Pump Not Responding?

We test Bosch drain pumps and their connections, then quote a replacement before any part is ordered.

  • Diagnostic fee credited toward the repair
  • 90-day warranty, 6 months for members
  • Open daily, 8 AM–8 PM
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Bosch E23 FAQs

Bosch says there is an issue with the drain pump: it is blocked, clogged or faulty.

You can check for a blockage at the pump cover. Bosch offers no further owner steps, so a pump that is clear but still faulting needs a technician.

Bosch ties E25 to a blocked pump or a loose or missing pump cover, and E23 to a pump that is blocked, clogged or faulty. See the E25 guide.

Often, yes. It is a single part, and on a dishwasher with a sound tub and working controls it usually makes sense to repair.

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  • Diagnostic Credited
  • Real Warranty
  • Based in Plano
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