Glad you got a solution that hopefully gets your camper cooled down again soon.
including 1000 or so miles on the Dempster Hwy and other gravel roads
vs.
can't take a bit of off-roading?
Well... I could show you pictures of my factory stock rear running board mounts on my 2014 Super Duty. There are fatigue cracks 3" long in the cab frame above the mounting brackets on both sides. The truck ran on gravel roads in Alberta before I got it. I need to take it to the shop to have it repaired when this camping season is over. That is just what vibration does to things.
The manufacturer of the AC does not know where the unit will be mounted, and under which conditions it will be used on your vehicle. Most RVs do not go off road for long before they start falling apart, and that won't start with the AC unit. I guess they could put some support unter that pipe. Or maybe that would cause other problems. Apparently these things can be refurbished at the factory or at a repair center. Maybe the manufacturer does not want this work to go out to individual small shops, for some reason. Cost of stocking spares, liability for bad repairs, whatever.
