Re: Diplomat Ad322 dishwasher
from what you say correct model should be ADP8322 whaich is a whirlpool
4 flashes is a heating problem
common problem on these machines is the wires break in the doors
remove door outer paqnel and you will find a plastic sleeve with wires running down to underneath. you will prob find the sleeve has snapped and so have at least 1 wire. check all the other wires for cracks in the insulation
these units are very robust and reliable so if thats all it is its woth fixing
hope this helps
Dave