E23
Neff
Drain Pump Control Circuit Fault
Washer-dryer shows E23; drain pump triac or pump circuit error
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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 triac failure, Burnt triac on power module, Wiring short in pump circuit, Water ingress into pump connector
How to Fix / Troubleshooting
Safety first: Unplug the appliance before any electrical checks.
Step-by-step checks:
- 1. Inspect pump and connector: Check for signs of overheating, melting, or corrosion at the pump terminals.
- 2. Test pump resistance: Measure coil resistance; compare with typical values (often 150–300 Ω). A very low resistance may indicate a shorted pump.
- 3. Check wiring: Inspect the harness from pump to control for damage or pinched sections.
- 4. Control board inspection: Remove the control module and visually inspect the pump triac area for burn marks. If damaged, the board must be repaired or replaced.
When to call a technician: Board-level repairs should be done by qualified personnel.
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Repair Difficulty
Professional Required
5/5
Required Part
Power Module (Control Board)
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