My kenmore elite dishwasher won't switch from wash to rinse?

My Kenmore elite dishwasher, model # 630.16303401 runs but doesn't switch over to the rinse cycle - just stays in the wash cycle and then at 1 minute left sometimes just sits there and won't turn off. Sometimes it does, but I'm not sure how long that takes.

Is there a reset or something that I can do.

The manual said to take off the toe panel, remove the water hose and 90 degree joint and remove any debris clogging the water inlet. I couldn't get the 90 degree joint off and I didn't see anything in the water hose.

Any suggestions?

M. Ram.
February 2010