The dish washer produces a "working" sound, even when switched off by the on/off - button at the front door. The sound most likely stems from the pump.
I found the service manual at https://elektrotanya.com/miele_g1000_g2000_dishwasher_service_manual.pdf..., although it seems about models for the american market, but this is an european model.
Could it be a relay sticking at the on position?
No need to worry about safety, I am pretty well educated in electrical engineering, but inexperienced in repair of... well, most things, including household electronics.
Kind regards
Manfred