Hi this is Bill Moore, I solved my own problem,the wires going into the converter had become slightly loose, probablly from vibration from the road. This was the most difficult problem in a motor home that I've ever tried to trouble shoot. Please every one check for loose wires coming out of the converter, for me this was 4 years of frustration. I hope this helps some one else.
Bill Moore at
newellbabes@juno.com