The problem I’ve been having with my dishwasher is that no water comes out of the top sprayer of the unit. Thus it also don’t turn. Plenty of water comes out of the bottom sprayer. I put a bore scope inside of the unit while its running. I blew some compressed air through the pipe going up to the top sprayer and it seems to be clear and spins like it should using air. I took the cover off the motor to see if there was something blocking it. All I found was the plastic ball that is supposed to be in there. I bought the dishwasher a few years ago and have never use it because of this issue. So basically the unit is brand new. Does anyone know what is possibly wrong with it? Or does anyone know of any other things I should check? Any insight would be appreciated. Thanks