Zanussi Dishwasher won't re-start after reset anti-flood switch?

Hi, My 14 month old Zanussi ZDF231 dishwasher stopped part way through a cycle indicating the anit-flood switch had tripped. I followed advice on here to empty the bottom tray and discovered the thermal sensor in the sump had shifted allowing water to leak. With this now all replaced, emptied & dried out the dishwasher won't start any program. When selected & started it sounds like it's trying to pump / open a solenoid but humming like it's stuck & no water let in. Any thoughts welcomed. Thanks