The pump motor runs but no water is moving through the spray arms
this is the wash motor your talking about. the pump only runs in drain. you need to remove the lower wash arm then the 3 screws on cover. next the 6 in the top of the housing and remove. you will now see the impeller that creates the water pressure. check to see it is not broke on the shaft. remove it and check to see if the impeller shaft is stripped on the motor. one of these two is your problem. i also included a diagram for you.
After a little closer examination the sleeve to the motor was stripped. It would spin when I looked at it, but would stop instantly when touched and was spinning on the motor shaft.
Thanks for the help