"misterroy" wrote in message
...
My neighbours dishwasher filled up so that when she opened the door there
was a few inches of water ready to flood her kitchen floor.

I reckon it is a sensor fault. I dug about on the internet, and it
suggests it is a flow meter that tells the machine how much water is in
there.
(
https://www.how-to-repair.com/help/b...replace-parts/
could even be the same machine)

How does the flow meter tell how much water is in there?

Time plus flow is volume.

or I am barking up the wrong tree?