Basement laundry area with a top-load washer and dryer next to utility equipment
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Field pattern: Bosch dishwasher E24 / E25 (filter, pump cover and impeller before a new drain pump)

E24 points to a drain problem and E25 to a blocked drain pump or a pump cover that is loose or missing. Most of these are cleared from inside the tub: filter, the clip-on pump cover under it, and a jammed impeller (glass, pits, thread wrapped on the shaft). The wrong turn is ordering a drain pump or board before opening the pump cover and checking the drain hose and disposal connection.

Cross-checked ~40 min easyBrands: Bosch, Thermador, Gaggenau

Before you start

  • Turn off power at the breaker before reaching into the sump
  • Wear cut-resistant gloves; the sump often holds broken glass
  • Unplug and shut water off before removing the kick panel or drain hose

Diagnostic steps

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Field pattern: Bosch dishwasher E24 / E25 (filter, pump cover and impeller before a new drain pump) · OnCall Tech