Siemens
Earth Leakage / Short Circuit in Heating Circuit
Oven trips the circuit breaker or RCD as soon as 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
Heating element shorted to chassis, Damaged wiring insulation touching metal frame, Moisture inside elements after cleaning
How to Fix / Troubleshooting
Safety: Do not repeatedly reset a tripping breaker. Disconnect the oven and investigate.
- Isolate elements: Disconnect one heating element at a time and test the oven. If the breaker no longer trips, the last disconnected element is likely faulty.
- Insulation test: With a megohmmeter (insulation tester), check resistance between each element terminal and earth. Low resistance indicates leakage.
- Inspect wiring: Look for pinched or melted wires where they pass through metal panels.
- Dry out moisture: If the issue started after steam cleaning, leave the oven unused with the door open for 24–48 hours, then retest. Persistent tripping requires element replacement.
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Repair Difficulty
Hard
4/5
Required Part
Heating Elements or Wiring Harness
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