I had a call yesterday and a regular said that my wash wasn't working correctly but could not give me a clear description of the problem . I stop up and can't find anything wrong. Today, I see that no water is coming out of the side oscillating arms on some passes (when it should be) and is working on other passes. I am thinking solenoid or cable problem. Any ideas? This is a first for me in 8 years. Solenoid has never been replaced. I tried inspecting the cables and ran some cars with good results then it happened again. Not sure what to do.