E23
Liebherr
Drain Pump Triac / Control Fault
Washer-dryer shows E23; drain pump may not run at all.
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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, Burnt triac on main PCB, Wiring short to pump, Water ingress on control board
How to Fix / Troubleshooting
Safety first: Unplug the appliance. Water and electricity are a dangerous combination.
- Check pump for short: Disconnect the pump and measure coil resistance. A very low resistance or visible burning indicates a shorted pump; replace it.
- Inspect wiring: Check the harness from the PCB to the pump for insulation damage or signs of arcing. Repair or replace as needed.
- Control board inspection: Examine the main PCB for burnt components near the pump triac. If damaged, the board must be replaced.
- Prevent recurrence: Ensure no leaks are dripping onto the control board or pump area.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board
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