I had an LCD screen go bad (well, it still works, it's just real dark and you have to look at it real close to see it) that I think the heat did in in my trailer, but that's it so far. I keep the top vent popped a couple inches and I try to crack the door open a couple inches unless it's supposed to rain to allow some cross ventilation. I'm going to cut some floor vents in when I get around to it to allow cool air in the bottom.