E23
Bosch
Drain Pump Electrical Failure
Washer-dryer shows E23 and will not drain; often associated with pump electrical fault
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Shorted or open drain pump motor, Damaged pump wiring harness, Control board pump triac failure, Water ingress into pump connector
How to Fix / Troubleshooting
Safety first: Unplug the appliance and drain water via the pump filter before working on the pump.
- 1. Access pump: Remove the lower front panel or rear panel (model dependent) to expose the drain pump assembly.
- 2. Inspect wiring: Check the pump connector for corrosion, water ingress, or loose pins. Dry and reseat as needed.
- 3. Test pump coil: With a multimeter, measure resistance across the pump terminals. An open circuit or very low resistance indicates a faulty pump that must be replaced.
- 4. Replace pump: Disconnect hoses and wiring, remove mounting screws, and install a new Bosch drain pump assembly, ensuring all seals are tight.
- 5. If E23 persists: The control board's pump driver may be damaged and should be checked by a professional.
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Repair Difficulty
Medium
3/5
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