Wildcat 337FB furnace is not providing air to the front
I am a new Wildcat owner and new to the forum. We picked up a 2013 337FB last fall and had the pleasure to use it a few times last year. We found a problem with the air flow then, but forgot about. Now we are camping for the weekend and very quickly we were reminded that the furnace is not supplying warm air to the front bathroom or the front bedroom. The heat in the main cabin and rear bedroom work wel with no complaints. In the bathroom, there is just enough air coming through to make me believe the duct is not plugged, but not enough air to warm the bathroom in any manner. In the bedroom, there is no air flow coming through. Needless to say, my kids are not sleeping in that room without hear. It's an ice chest. I have taken R-13 insulation and wrapped the two flex piping in the front storage area to try and retain any heat that is being lost there. That made no difference.
Any help would be most appreciated. I sold a 2002 Four Winds that worked flawlessly for 13 summers, so needless to say, this is not how I want to start out with this new rig.
Thanks all, JC and company.
2008 GMC Sierra dragging around a 2013 Wildcat 337FB and 2008 Tige Z1.