Hello everyone. New to this, but here goes: 1993 pinnacle, purchased a year ago. A week after buying it, we were using the roof air & noticed what appeared to be smoke coming from the front unit. Turns out it was a refrigerant leak. We took it back to the dealer and they said they would repair the problem. We got it back a week later and it worked fine. Parked it over the winter and come this summer, again the same problem with the front roof air. We took it to Giant RV to be repaired because we purchased an extended warranty from the dealer where we purchased the coach. Giant RV told us that an inspector came out from our warranty company and denied our claim due to the fact that the unit had been welded and they would not cover it. I really donâ€™t think taking it back to the dealer where purchased is an option due to the fact that this same mechanic who did the welding also mixed the R12 and 134 refrigerant in the dash A/C. Why purchase a warranty when they never seem to want to cover anything? Any suggestions? Thanks in advance.