BOSCH WAS32460GB

It does sound like the fault appears the moment the door interlock is energised, which usually points to either the door lock itself, its wiring, or the main control module reacting badly when the lock circuit comes in.

Before checking anything internal, isolate the washing machine from the mains.

1. Check the door lock/interlock first If the machine starts as soon as the door shuts, then the control may be seeing a false “start/lock” signal. A faulty interlock can also drag down the supply to the controls, which would fit with the display going dead.

2. Inspect the wiring to the door lock Remove the top or front access as appropriate and look for burnt connectors, loose terminals, broken wires, or signs of overheating around the interlock plug. Bosch machines can suffer from heat damage at the lock connections.

3. Look closely at the main PCB/control module If the panel dies only when the lock engages, the board may have a failed relay, power supply fault, or damaged track associated with the lock circuit. Check for scorching, failed solder joints, or obvious component damage.

4. Consider whether any button is stuck Less likely from your description, but if a start/pause or option button is shorting, it can cause odd behaviour. Try checking that all buttons feel normal and are not jammed in.

5. Do not force the machine to run Manually overriding the lock repeatedly is best avoided until the cause is found, as it can damage the lock or create a safety issue.

On balance, I would suspect the door interlock or the control board, with the interlock being the first thing to test or substitute. If you are not confident with live circuit diagnosis, it would be best to get a qualified appliance engineer in, especially for any mains electrical work.

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