I have one of these D41 dishwashers, its now about 4 years old "God only knows how it made it this far" but I also had the two first flshing lights thing, it would fill up, wash but not empty so it had to be something to do with the drainage pump, this morning i took it apart and tryed turning the drainage pump propeller with a screwdriver, its hardley moved at all to begin with but then freed up, I then tipped it up and knocked it gently on the floor a couple of times and some small shards of broken glass dropped out, I put it all back together again and now works like new........ish.
Sean Galvin, August 2006