if you have an indirect cold water system (ie tank fed) just replace washer and seating in the ballvalve. to test this just lift ballvalve when noise starts
my idl 705 dishwasher starts cycle as normal, i hear it filling for about a minute then lights 1 and 3 flash and i hear water pump out, it then stops and i am left with 1 and 3 flashing (and dirty dishes) there is no water left in the bottom of the machine. any ideas? :?