De Dietrich Control Board Hang / Software Lock-Up

Washer-dryer stops mid-cycle without draining; no error code shown, but door remains locked

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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

Momentary power fluctuation, Faulty control board firmware, Overheating of electronics, Intermittent wiring connection

How to Fix / Troubleshooting

Safety: Switch off and unplug the appliance before attempting to open panels.

  • 1. Power reset: Unplug the machine for at least 10 minutes. Plug back in and attempt to select and run a drain or spin-only program.
  • 2. Check ventilation: Ensure the washer-dryer has adequate space around it for cooling and that vents are not blocked.
  • 3. Inspect connectors: Remove the top cover and reseat the main harness connectors on the control board and user interface.
  • 4. Monitor behavior: If the issue recurs frequently, the main PCB may be failing and should be replaced by a technician.

Warning: Forcing the door open while the drum contains water can cause flooding; always drain first via the pump filter if needed.

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Repair Difficulty

Medium 3/5

Required Part

Main Control Board (Power Module)
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