Having a problem with my Jenn-Air dishwasher that has stopped cleaning dishes well. I have a feeling that it might be the wash arm or arms however want to know what all I should be replacing. The diswasher can’t even clean itself with no dishes in it, the top of the door still has a little bit of debris on it. Dishwasher is draining and filling properly, sure wish I could see in this baby to see what isn’t spinning or flowing water