Dishwasher not washing. Dishwasher was operating fine but quite noisely (dial/timer was quite

Question

Dishwasher was operating fine but quite noisely (dial/timer was quite noisy until it made it to the heated dry cycle). Now, it is very quiet when you turn the dial but it will only fill up and heat the water - no wash no draining! Obviously there is power, the latch is fine (I took off the front panel and checked the latch mechanism and the dial and wire connections leading up to it - nothing visible to the eye. Air gap on sink is clear. No visible gookus stuck inside the dishwasher. Suggestions???? Timer is operational. GE Potscrubber Model #GSD650