i've bought a 2nd hand zanussi dw907 dishwasher and although it works fine we've noticed when its not in use it sometimes fills up in the bottom with dirty water any ideas???
you could try and see if its syphoning back up through the grey outlet pipe and not emptying out full and just travelling back into the dishwasher or also the cold water inlet valve/solenoid the washer in that might be letting some water instead of shutting off.
Worth a try.
