Hey Mike. The upper arm is turning fine. NThat is not the problem. When I don't even use soap in first cycle and the water starts, there is a ton of soapy water already and it is not rinseing with clean water either.
Don't get me wrong. I'm not saying your answer didn't work for a few loads but the suds and the dirty dishes came back only after a few washes because the cascade has phosphates in them./
Please do not reply any longer.