I'm reading all the posts about issues with air flow to some of the hot air furnace ducts.
I just spent a couple of hours removing panels and checking an issue I have with no air into the mid cabin bath.
The furnace has 4 - 4" air ducts and 1 - 2" duct.
Two 4" ducts have good air flow into the main living area, 1 - 4" duct also has good air flow into the rear bedroom.
One 4" duct blows hot air into the basement to protect the plumbing, and it also has good air flow.
The 2" duct leading direct from the furnace to the mid cabin bath has no air flow at all.
I have pushed a wire fish through from each end and there is no way to get it to pass all the way through!
I assume there are at least a couple of 90 degree bends in the duct, but that would not "stop" any air flow.
My best guess is that during assembly, Fleetwood kinked the 2" hose severely enough to completely block off any air flow.
It's not a big deal, but obviously sloppy assembly work, and something Fleetwood never checked at the factory.
For those with air flow issues, you may want to try running a wire fish through the ducts, and also check to ensure the duct is attached properly to the furnace.