E23
Constructa
Drain Pump Electrical Failure
Dishwasher shows E23, will not drain, pump may be silent.
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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
Burned-out drain pump motor,Loose or corroded pump connector,Control board not supplying power to pump,Wiring harness damage
How to Fix / Troubleshooting
Safety first: Disconnect from mains and be prepared for water leakage when accessing the pump.
- 1. Verify blockage is cleared: Perform all E21/E22 cleaning steps to ensure no mechanical blockage.
- 2. Listen for pump: Start a drain program. If you hear no pump noise at all, suspect an electrical fault.
- 3. Access pump from below: Remove the base cover and locate the drain pump. Check the wiring connector for secure fit and signs of burning.
- 4. Basic continuity test (advanced): With the pump disconnected, measure resistance across its terminals. An open circuit indicates a failed motor.
When to call a technician: Electrical testing and pump replacement should be done by a qualified technician, especially if control board faults are suspected.
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Repair Difficulty
Hard
4/5
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