Bosch
Short circuit under load
Bosch oven trips the circuit breaker when heating is started
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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 heating element to chassis, Damaged wiring insulation, Faulty line filter or suppression capacitor, Moisture inside electrical components
How to Fix / Troubleshooting
Safety first: Do not repeatedly reset a tripping breaker. Risk of fire or electric shock. Disconnect power and investigate.
- Inspect elements: Look for visible damage or hot spots on elements. Test each element for continuity to chassis; any element shorted to ground must be replaced.
- Check wiring: Remove rear and top covers and inspect wiring harnesses for melted insulation or contact with sharp metal edges.
- Line filter: Inspect the EMI filter module for cracks or burn marks. Replace if damaged.
- Dry moisture: If the oven was recently cleaned with excessive water or steam, allow it to dry thoroughly for 24 hours before retesting.
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Repair Difficulty
Professional Required
5/5
Required Part
Heating Element
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