Product review (5 stars): Solved the seemingly unsolveable problem
A flashing "sani-rinse" light on the user interface board was the only indicator of non-functionality of my Superba Kitchenaid dishwasher.  Replaced many electric/electronic parts before, as a last resort, I replaced the heating coil.  Whala!  The light went solid for a time, and then the system check cleared all lights.  This system then was ready for work.  Halleluiah!