I have just replaced the water inlet valve on my Tricity Bendix dh101 and that seems to work fine now. I assume that it is good, as it does not fill when the power is off and it opens when the programme demands it to.
The problem seems to be the machine is now overfilling.
I think this could be a float/floatchamber problem from what i am reading when i google it, but i can't find any information on the chambers whereabouts or what i should be looking for.

Ian, October 2010

Cheers CK, the pipe to the pressure switch had come away from the bottom of the IWMS. You led me staraight to the problem.
Your advice is very much apreciated, and the wife was hugely impressed when i fixed it.

Ian, October 2010

looking from the front remove the left side panel.look right at the bottom for black gunk in the iwms (plastic tank up the side).under the door at the bottom is a metal cover plate.remove this and you will see the hoses and the pressure switch mounted to the sump on your left.Clean these hoses and blow down them to clear and obstructions

ck, October 2010