My Kitchenaid KUDP02SR dishwasher was leaking from the bottom of the door. At first I thought that the drain pump or filter might be the problem, but then a day later water filled up the bottom again even when the dishwasher had not been turned on. Google searching and posts on this site pointed towards a problem with either the water inlet valve (stuck partially open) or the drain hose (allowing backflow into the dishwasher). I decided to try the inlet valve first, and so far, after 3 days, the problem seems resolved.