I washed a cutting bord that had modeling clay residue on it. The dishwasher will no longer drain. I have followed manufacturer instructions for cleaning the dishwasher but nothing is working. Help?

Did you try cleaning the drain at the bottom of the tub of any clogged residue? This could be your problem if the machine worked just fine until it got clogged with the clay. Apparently the clay has stuck onto some already existing clog in the lower drain.