beko dishwasher gremlins

hi
got a Beko integrated dishwasher thats about 3 years old now. At the weekend, it suddnely decided to not work – basically – lots of rumbling dishwashery noises, but no water going in! pulled it out, looked on the forums, made a wild stab that it was the water inlet valve that needed replacing, so ordered it. Arrived today, and fitted it. Now….the dishwasher didnt work at first – same sort of sounds…. so tried again, and woohoo…semmed to work! So I pushed it back into its slot, shoved some plates in and turned it on. Back to square one with noise but no water! Pulled it out, tried it again, and worked all fine! Pushed it back in the slot, and nothing! Made sure that the pipes at the back werent snagging or anything. Now it seems to have a life of its own.

My thinking is that the control panel is buggered – doesnt seemt o want to play ball, but does anyone have any other ideas before i jump onto ao.com and order a replacement?