I have had my North Country for two years now. It has the upgraded AC unit in it. I have noticed that if it is really hot outside (as it has been in Kentucky all summer) and I have to run the AC a lot, the electrical panel is getting MEGA hot. It has even tripped all the breakers for the camper. I also found where the outside electric plug has gotten so hot, the copper has turned colors and melted the plastic housing. I used an extension cord that day but is a factory produced cord specifically made for 30amps and purchased at a reputable RV dealer. I am beginning to get a little concerned about these issues. When the dealer installed the upgraded AC unit, should something else have been done to upgrade the wiring or breaker(s)? If so, what do I need to look for to make sure it was done? Any help is appreciated.