Amica Short Circuit or Earth Leakage in Microwave

Microwave trips the household circuit breaker or RCD when starting.

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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 high-voltage capacitor, Shorted high-voltage diode, Faulty line filter causing earth leakage, Damaged power cord insulation

How to Fix / Troubleshooting

Safety: Repeated tripping indicates a potentially dangerous fault. Avoid repeated resets.

  • Isolate appliance: Unplug the Amica microwave and try another appliance on the same outlet to confirm the circuit is sound.
  • Visual inspection: Remove the cover (unplugged) and inspect the line filter, power cord entry, and high-voltage components for burn marks or melted insulation.
  • Do not energize with cover off: Never run the microwave with the cabinet removed.
  • Professional diagnosis: Testing for insulation resistance and leakage requires proper instruments. Contact an authorized Amica technician to locate and replace the shorted component.
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Repair Difficulty

Professional Required 5/5

Required Part

High-Voltage Capacitor
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