There’s two fans the outer most fan catches the wind as you drive. It’s what they claimed happens on their motorhomes. People, go ahead and do what ever floats your boat. I’m simply passing in what was passed on to me at Advanced RV which is the first company to import the units. Maybe they don’t have a clue, maybe they do.
Still looking for the link, but I had found one that explained that the fans were speed controlled to reduce noise. When traveling, the wind can accelerate a fans speed and create an error condition when the onboard computer notices a mismatch between desired and measured speed. Wont run, but no harm done. Just needs a reset.
The dynamics of the roof airflow might cause this, or not. Try and see. No harm done to the unit when it goes into 'fault' mode and stops.
@Kevin - If I were in your 'seat', and you NEED to have the AC operating while underway, I would swap the two units and see if the Houghton works in the front underway. If it does, go ahead and and purchase another for the back. If it doesnt, swap them back. I do the work myself, so the labor $$ wouldnt be an issue. In my old 2006, the AC is a VERY simple R&R. No thermostat wires like later models might have, but I took our old one out, installed it on the trailer roof, then installed our new one in the camper in under 2 hrs, and that was with beer breaks.
Took more time getting them up and down from the camper roof than actually installing! Now I would use my tractor bucket
, but I slid them up and down a sloped ladder at that time. Your are on the same roof, so even easier. Health allowing, of course!
Even if you paid someone $250 each swap (2 hrs at $125/hr rate... ) if it DID work up front, you would have peace of mind knowing for $250.
If it DIDN'T work in front, it would cost you $500 to find out, and swap them back.
Instead of $1000+ purchasing and installing a new one that wont work underway, PLUS the cost to reinstall your old unit.
