Update from yesterday. Today is 8/26.
My Kenmore Dishwasher Ultra Wash 1998 Model 66515701891 won't drain. It has been in use infrequently for 6 years. Suddenly, now the water stays in the bottom. I opened it this morning to remove the cleaned dishes and noticed the water in the bottom. I emptied the dishes out, closed the door and turned it on again to see if it would drain. It makes a moaning noise that you would think was a cow in labor. It never did that before. It still did not drain. What could be wrong? Why won't it drain out and I know that noise is not good.

That was yesterday (8/25). I ran it today (8/26) with no dishes inside. Today it still won't drain, but the noise is different. Now it sounds like my garbage disposal - grinding something it is having a hard time with. Occasionally it lets out a high pitched alarm-like sound for jsut a second or two. I took the bottom cover off the front to take a look, but since all the noise is down there, I can't isolate it myself. What would cause it to make that grinding noise and at the same time not allow it to drain the water out?

Kenmore Dishwasher Won't Drain, Moans & Grinds