The process of the machiene is such. The power is turned on then the inlet fill solinoid valve recieves an open signal. It duly opens and fills to a level then closes and the dishes gets washed. If the solinoid valve does not get a signal then it does not open. If the solinoid valve is faulty then it does not open. If the in-line fine filter is blocked or water feed blocked or pipe kinked then it will not fill. Check these first then if OK you way need a new solinoid valve
Jim
January 2010