E23
Zanussi
Drain Pump Triac / Pump Control Fault
Washer-dryer shows E23, will not drain or start a cycle; you may hear no pump activity.
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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 drain pump causing board damage, Faulty triac on main PCB, Damaged wiring harness between PCB and pump, Water ingress on control board
How to Fix / Troubleshooting
Safety: Unplug the appliance and keep it disconnected while inspecting electronics.
- Check pump first: Access the drain pump and test its resistance with a multimeter. If the pump is shorted or shows very low resistance, replace it before addressing the board.
- Inspect wiring: Trace the harness from the pump to the main control board. Look for chafed insulation, burn marks, or loose connectors. Repair or replace damaged wiring.
- Examine control board: Remove the control panel or rear cover to access the PCB. Look for burnt components near the pump triac area or signs of moisture damage.
- Board repair/replacement: If the triac is visibly damaged or E23 persists with a known-good pump, the main PCB will usually need replacement or professional component-level repair.
Because this involves live-voltage circuitry and surface-mount components, board-level work should be left to a qualified technician.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board (PCB)
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