Just something to check. when we purchased our motor home, our bedroom was an oven and the rest of the coach was cold. If you have any ducts that run through a slide, check to make sure they are not collapsed. We have a kitchen slide with 2 ducts. The ducts run behind the stove and exit out the far end by the sofa. We had no air coming out of them. Upon investigating what was going on, one duct was totally torn in two behind the stove, the other was totally squash between the side and back of the slide. Both problems were done during factory assembly. after that was fixed (ran new ducts) everything was cozy.
2010 Georgetown 330