We replaced the cooling unit in jan. 2010 while we were living/working in South Dakota. I was told by the tech. that replaced it, and we saw it on other rvs was the outside access covered, but not completely. We were told the cold causes the CU to work hotter and then cooks the CU. I guess I didn't make that clear about mine either. There still is air circulation. I know the fans work in the summer because I can here them running.34 here last night and fridge was working this morn. And dougrainer, it is in a slide and has 2 side access cover not a roof vent.
