Grundig Door-Activated Circuit Short

Oven trips RCD or breaker as soon as door is opened or closed

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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

Door switch shorting to chassis, damaged wiring in door area, lamp circuit short when door opens, pinched harness near hinge

How to Fix / Troubleshooting

Safety first: Do not continue resetting a tripping RCD. Disconnect the oven and verify insulation.

  • Observe trigger: Confirm that the trip occurs exactly when the door moves. This points to door-related circuits.
  • Inspect door switch: Access the switch and check for cracked housing or exposed terminals touching metal. Replace if damaged.
  • Check lamp wiring: Since the lamp often turns on with the door, inspect the lamp holder and wiring for shorts to the cavity.
  • Inspect hinge area: Look for pinched or cut wires near the hinges where movement occurs. Repair with high-temperature insulated wire.

Warning: Earth faults in moving parts can be intermittent and dangerous; thorough inspection is essential.

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Repair Difficulty

Hard 4/5

Required Part

Door Switch
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