Morphy Richards Short Circuit / Earth Leakage in Supply or Control

Morphy Richards oven trips the RCD or fuse when turned on, even before heating starts.

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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

Damaged mains cable, Faulty mains filter (EMI filter) shorting to earth, Moisture in terminal block, Shorted control board component

How to Fix / Troubleshooting

Safety first: Do not repeatedly reset a tripping breaker. Isolate the oven and do not use until inspected.

Steps (visual for homeowners):

  • Check cable: Inspect the visible power cable for cuts or crushing.
  • Inspect terminal block: With power off, remove the rear cover and look for moisture, carbon tracking, or melted plastic around the terminal block and mains filter.

Professional checks:

  • Test insulation resistance between live/neutral and earth.
  • Isolate the mains filter and control board to identify the faulty component.

Recommendation: This fault should be handled by a qualified electrician or Morphy Richards service technician.

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Repair Difficulty

Professional Required 5/5

Required Part

Mains Filter Module
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