I shined a light in the hall vent towards the front. No light in the mirror I used to look but it does not appear to be a straight shot so that may mean nothing.
I placed an air gun from my compressor at 15 PSI in the hall duck and wedged the trigger on. That put plenty of air coming out of the front two ducts. So I don't think there is a kink in the ducts or a disconnect. When I fired up the heat, I got no air up front. I closed the hall vent and that sent some air up front. So now I can make the system work somewhat but I don't know if closing the hallway duct is going to harm the system.
I'm really hoping I can work through the issues on this MH. I simply can not keep driving 120 miles round trip to fix this minor stuff. I did cancel my warranty plan which made my dealer unhappy but we have a year with Winnie and I'll just jump through their hoops.
I have my compressor and shop vac out there so if there are more suggestions....