ren
Inside the dishwasher on the left side close to the front you can see the float dome (# 302 on the dishwasher body break down diagram ) and the float ( # 305 on the same diagram ). I believe it got stuck with a grease and old soap. Normally the float should easy go up and down. Also check the switch under the float ( #490 on the same diagram ). If this switch is open the power does not go to the water valve.
Good luck.
Gene.