Hopefully someone with your camper model will respond.
In the meantime, looking at pics of your trailer on the internet, it seems to be a weird setup. I see louvers under the stove, but no "normal" discharge vents (usually round vents on walls/cabinets or rectangular vents in the floor). I would have expected to see one on the cabinet wall by the street side dinette bench and maybe one in the cabinet in the bathroom. Therefore, I'm ASSUMING that the furnace takes it's cold air in and blows its hot air out through the same set of louvers, which seems dumb, as it short-circuits the air flow. (Not unusual, though, as both my Roo and my Mini-Lite have the cold air return right next to one of the hot air vents.)
I also see that some units have an oven below the stove and some have a drawer. If you have the drawer, you should be able to remove it and get your head in there to see what's going on. If you have the oven, it will be more difficult.
Does the louver seem to be removable? You need to get inside where the furnace is to see what's going on.
1988 Coleman Sequoia - popup (1987-2007)
2012 Roo19 - hybid (2012-2015)
2016 Mini Lite 2503S - tt (2015 - ???)
2011 Traverse LT, 3.6L, FWD
2009 Silverado Ext Cab, 5.3L, 4x4, 3.73
2016 Silverado 2500HD Dbl Cab, 6.0L 4x4, 4.10