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De Dietrich Door Open / Door Lock Not Engaged (Pyrolytic Models)

Oven display shows d0 and the oven will not heat.

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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

Faulty door lock switch, Misaligned door latch, Broken door lock motor, Wiring fault between lock and control board

How to Fix / Troubleshooting

Safety: Disconnect the range from mains before accessing the door lock mechanism.

  • Check door closure: Ensure the door is fully closed and not obstructed by racks or trays.
  • Inspect latch: Open the door and examine the latch and strike plate. Adjust if visibly misaligned.
  • Test lock operation: Start a pyrolytic cycle (if safe to do so) and listen for the lock motor. If there is no sound, the lock motor or its supply may be faulty.
  • Check lock switch: Access the top or rear panel to reach the door lock assembly. Test the microswitches with a multimeter for continuity when the lock is engaged.

Repair: Replace the door lock assembly if the motor or switches are defective.

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Repair Difficulty

Hard 4/5

Required Part

Oven Door Lock Assembly
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