I have a ge model gsd6200j00ww dish washer The water is coming out the spinner arm weakly and it does not turn. I have removed the water tube assy. Going up to the middle and top spouts .They are clean no obstruction. I removed the bottom spout/ spinner arm and there is no trash in there as well. I have good water psig. To the unit . Im thinking maybe some type of screen on the bottom? Or maybe pump assy? I don't have a break down of the unit to go by. I thought I could just roll it out of the cabinet not true. So I have not been able to look at the bottom. Drop down due to hard wood floors.