Problem with hansa zim654h - overflows ⇐ Hansa

[maxorlov]

Good afternoon, there is a problem with the hansa zim654h dishwasher
It fills up water, thinks, fills in water again - like this 3-4 times
Water starts overflowing over the front edge
Then it gives the error "no water pressure"
At the same time, the pressure is normal, nothing interferes with the drain
Ie. Logically, some sensor does not detect the pressure
Tell me - what exactly should I look at/change first?