Neff Electrical Short or Earth Leakage

Washer-dryer trips the household circuit breaker or RCD during operation

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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

Heater element shorted to earth, Motor insulation breakdown, Water leak onto wiring, Faulty mains filter

How to Fix / Troubleshooting

Safety first: Do not repeatedly reset the breaker without finding the cause. Unplug the appliance before inspection.

Step-by-step checks:

  • 1. Identify when trip occurs: Note if the trip happens during heating, spinning, or randomly. This helps pinpoint the faulty circuit.
  • 2. Insulation test (advanced): Using an insulation tester (megger), check the heater and motor windings to earth. Replace any component with low insulation resistance.
  • 3. Check for leaks: Inspect for water in the base tray or on wiring harnesses.
  • 4. Inspect mains filter: Look for burn marks or cracks on the interference filter; replace if damaged.

When to call a technician: RCD tripping often indicates serious electrical faults; professional testing is strongly recommended.

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Repair Difficulty

Professional Required 5/5

Required Part

Tub Heating Element
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