tHE TOP SPRAY IS NOT SPRAYING. I ahve pulled out the unit and ran it so I could see the side water tube going to the top. Upon running the unit only a small amount of water would load in the tub but not even cloe to the top of the machine. The bottom spray is working fine. I have tried to locate a schematic to see how this function works and if it sould be a pump or motor that might be out.