Neff
User Interface / Start Circuit Fault
Washer will not start cycle; display works but Start button does nothing.
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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
Faulty Start/Pause button, Defective user interface PCB, Broken wiring between UI and main board, Child lock function active
How to Fix / Troubleshooting
Safety: Unplug the washer before removing the control panel.
- Check child lock: Refer to the Neff manual to disable the child lock (often by holding specific buttons). If locked, the Start button will be ignored.
- Try different programs: Select another cycle to rule out a program-specific issue.
- Inspect control panel: Remove the control fascia and check the Start button mechanism for sticking or physical damage.
- Check UI connections: Ensure the ribbon cable or harness between the user interface and main board is firmly seated and undamaged.
- Replace UI board: If the button and wiring are fine but the machine still does not respond, the user interface PCB may need replacement.
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Repair Difficulty
Medium
3/5
Required Part
User Interface PCB
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