Bertazzoni
Earth Leakage / Ground Fault
Oven trips the residual-current device (RCD/GFCI) during or shortly after heating.
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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
Moisture in insulation or wiring, Element insulation breakdown, Faulty line filter or suppression capacitor, Damaged power cord (ranges)
How to Fix / Troubleshooting
Safety first: Turn off power and do not bypass safety devices. Ground faults can be hazardous.
- Allow drying time: If the oven was recently steam-cleaned or heavily cleaned, allow 24–48 hours for internal moisture to evaporate, then retest.
- Inspect elements and wiring: Look for signs of arcing or carbon tracking between live parts and chassis. Replace any suspect elements or wiring.
- Check line filter module: The EMI filter near the terminal block can fail and leak to ground. Disconnect and test; replace if leakage is detected.
- Insulation resistance testing (technician): A professional can perform megger tests to identify which component is leaking to earth.
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Repair Difficulty
Professional Required
5/5
Required Part
Line Filter / EMI Filter
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