Management has let this unit set idle for weeks and the field people haven't listen to what I have asked them to do. I suggested the above things to look at and try, thank you very much, but was met with confrontation and told it has already been done. I'll make this short. I took the ribbon cables loose, blew them and the MSU and replay pilot connectors with compressed air. Three weeks this unit has been down, I spent 15 minutes on it. Unit works and I am looking at retirement after almost 40 years in this business.
