I have this exact same problem too!! Haven't used it for months cause it was tripping the main fusebox every time, chanced it again the other day and it worked fine...ONCE. Second time it wasn't draining properly so I cleaned the filter and sorted out the drain hose; then the program buttons stopped working properly. Found a hack to get round that problem, and now this! Goes through steam cycle and drying cycle but no wash cycle; soap suds fall out onto the cutlery tray and congeal. I think by the sounds of it it must be a common fault. There seems to be no end of faults with these dishwashers and mine seems to have gone through them all one by one. Diplomat are no longer trading, the rumour I heard is that they went bust. No wonder if their products are so shoddy! Think we'll just have to tear the dishwasher out and have extra cupboard space, unless the landlord fancies replacing it!
Kate, January 2015