if the water is filling to the correct level (just above filters in the base) then the circulation pump shoul kick in.If it doesn't then it could have something jammed in it or seized up.tip dishwasher on its back and remove the metal base.look at the larger motor for water leaks between the motor and the plastic impellor housing.held on to side with 2 screws and a clamp
ck
July 2010