I think I found one. I called yesterday and said my front A/C in not working, nothing. I checked the breaker, thats about all I know. He said, remove the plastic cover inside, look at the wire plug in, see if it has come loose due to rough roads... That fixed it. He could have had me take it to the shop and replaced some parts for a charge. I would not have known. I have used Him several times now and am totally sold on Rose City RV Repair, 111th street, near Foster, Portland.