In article a2a33d88-2393-4923-8cec-28238f321f37
@z9g2000yqz.googlegroups.com, says...
It's electronic, no dials or knobs to turn! Pressing any buttons just
resets the machine at the beginning of the cycle!
But the info about something being gunged up could be useful. (and yes
it's a dishwasher)

On our Bosch there's a float in a translucent plastic bucket at the side
which operates a microswitch. There's also a float in the tub under the
gubbins which is a final shut-off in event of a leak - operates the same
switch.

--
Skipweasel - never knowingly understood.