Neff No Power / Supply Failure

Washer is dead: no lights, no display, no response to buttons.

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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

Blown mains fuse, Faulty power cord, Defective mains interference filter, Failed main control board power supply

How to Fix / Troubleshooting

Safety: Always unplug the washer before opening any panels. If you suspect a wiring fault in the home, consult an electrician.

  • Check outlet: Test the wall socket with another appliance to confirm power is present.
  • Inspect plug and cord: Look for damage, burns, or loose pins. Replace the cord set if damaged.
  • Check mains filter: Remove the rear or top panel to access the mains interference filter (often where the cord enters). Inspect for burning or bulging. Replace if faulty.
  • Control board power: If the filter is good, the internal power supply on the main PCB may have failed. This typically requires replacing the control module.
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Repair Difficulty

Hard 4/5

Required Part

Mains Interference Filter / Main Control Module
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