I'm trying to work out what's wrong with our Baumatic BDW10
dishwasher. It's giving an E1 error at the end of the fill cycle.

I.e. when one starts a cycle:-

The drain pump runs to empty any old water out.

The inlet opens and water goes into the dishwasher.

Now it should start washing, but instead I get the E1 error, even
though there is enough water in the dishwasher, or it looks as if
there is.

So, what might be wrong? Is it taking too long to fill and only
telling me at the end of the fill cycle? Or maybe is it not detecting
when it has enough water and just timing out so that it doesn't flood
the floor?

Any/all ideas would be welcome. It's a fairly old dishwasher so I'm
fairly happy to try moderately drastic solutions! :-) It's all
beatifully clean and tidy down underneath though, no corrosion or
anything.

--
Chris Green