New World
Earth Leakage / Short Circuit in Heating Circuit
Oven or cooker trips the RCD or blows fuse when 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
Element insulation breakdown to earth, damaged wiring touching chassis, faulty terminal block, moisture ingress in elements
How to Fix / Troubleshooting
Safety: This is a potentially dangerous fault. Isolate the appliance and do not repeatedly reset the breaker.
- Identify when it trips: Note whether it trips when a specific function (grill, fan oven, top oven) is selected. This points to the suspect circuit.
- Insulation test (if equipped): With all elements disconnected, use an insulation tester between each element terminal and earth. Low resistance indicates leakage; replace the element.
- Visual wiring check: Inspect wiring looms around the oven cavity and hob for signs of chafing, burning, or melted insulation. Repair or replace damaged sections.
- Dry out moisture: If the cooker has been steam‑cleaned or flooded, allow it to dry thoroughly for 24–48 hours before retesting. Persistent tripping requires component replacement.
- Call a professional: If you do not have appropriate test equipment, have a qualified engineer diagnose and repair the fault.
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Repair Difficulty
Professional Required
5/5
Required Part
Oven or Grill Element (leaking to earth)
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