D09
Brandt Door Lock Circuit Error

Washer shows D09 and will not start; door may not lock or unlock correctly.

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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 door lock coil, Damaged door lock wiring, Faulty main PCB door lock driver, Incorrect door lock replacement part

How to Fix / Troubleshooting

Safety first: Unplug the washer. Do not force the door open with tools that may damage the latch.

Inspect the door lock assembly:

  • Access the door lock from the front by removing the retaining band of the door gasket and pulling the gasket back.
  • Check for signs of overheating or melting on the lock body and connector.

Electrical tests:

  • Disconnect the lock connector and measure resistance of the lock coil(s) with a multimeter.
  • If readings are near zero (short) or infinite (open), replace the door lock with the correct Brandt part number.

Check wiring to PCB:

  • Trace the harness to the main PCB and look for pinched or burnt wires.
  • Reseat the connector on the PCB.

After replacing the lock or repairing wiring, reassemble the gasket, plug in the washer, and test a short cycle. If D09 remains, the PCB door lock driver circuit may be damaged and the board should be replaced.

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Repair Difficulty

Medium 3/5

Required Part

Door Lock Assembly
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