E23Serious
Bosch Dishwasher E23 Error Code
The circulation pump is not working, so water cannot be circulated for washing.
Common causes
- Faulty circulation pump motor
- Blocked impeller
- Wiring or control board issue
How to fix it
- Listen for pump humming; if silent, check power to pump.
- Check for obstructions in the pump impeller (accessed from sump).
- Test pump motor continuity with multimeter.
⚠ When to call a pro: If the pump is not receiving power or is open circuit, call a technician.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.