Frigidiare Dishwasher not washing

Model number PLDB999AC0. We noticed it was not washing. I replaced the water inlet valve and the control board. Now, water fills, I could hear some humming at the wash cycle (maybe the timer) but no arms spinning and no water evident around the walls of the dishwasher. The drain and dry cycle works. Is it possibly the motor. How would i find out. Is there another possibility?

I’m having the exact same problem. Please keep me posted if you figure anything out.