Zanussi Earth Leakage / Insulation Breakdown

Microwave trips the RCD (residual current device) or GFCI outlet during or shortly after starting.

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.

Possible Causes

Moisture inside cavity or wiring, Breakdown of insulation in high-voltage transformer, Faulty mains filter capacitor to earth, Damaged power cord

Safety first: Unplug the microwave and do not use until inspected.

Dry the unit: If heavy condensation or a spill occurred, leave the door open and allow the microwave to dry for 24 hours.
Inspect power cord: Check for cuts, crushed sections, or exposed conductors. Replace if damaged.
Professional insulation testing: A technician can perform insulation resistance tests to locate leakage paths and replace faulty components.

Professional Required 5/5

Mains Line Filter Board

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