"News" wrote in message
...
In message , Chris J Dixon
writes
News wrote:

Interestingly, I wrote the above yesterday morning and, by the time I
used the DW later, an inch of water had built up in the bottom of the
machine again. Last night, I ran the hottest wash and afterwards, no
water in the bottom. By this morning, there is perhaps half an inch of
water in the bottom again. Time for further investigation.

Grit in the inlet valve? Or does it have some form of water
storage system to reduce consumption?

I don't know. I just wonder whether the outlet is partially blocked by
sludge, and water is getting beyond the pump but not to the drain, then
slowly draining back into the machine overnight.

Much more likely to be grit in the input solenoid.

Stuff draining back wouldn't normally take any time to happen,
it should drain back pretty quickly after the machine stops.

The water looks clean, and there are no smells.

That doesn't mean much given that it would have finished with a rinse.

Think I'll try Tim's idea first. Run the DW on the hottest setting, with
the filters in the machine, but not fitted.

Can't see why that would effect draining back.

One quick test would be to turn off the inlet water
tap outside the dishwasher and see if you still end
up with water in the dishwasher overnight. Or
disconnect the inlet hose if there is no tap there.