Well, at least now I know mine was not the only unit built that way. I can tell you from experience if the control board goes bad, which ours was from the factory, they will have to take the rear wall panel out from the basement storage and then cut a hole in the exposed wall behind the panel. It was quite a chore. The only positive thing about this was at least it was under warranty. I also now have a way to take the furnace out should the control board need to be replaced again. It is really a pain though to have to take the furnace all the way out to replace a $25 board.
2010 Jayco Quest G2(SOLD)
2014 Jayco Eagle 33.5RETS
2007 Ram 2500 5.9L Cummins(SOLD)
2015 Ram 2500 6.7L Cummins 4WD