Monaco Owners Club Newmar Owners Club Spartan Chassis
Join Date: Feb 2014
Location: Perry, Ohio
Posts: 129
Dash AC blower weirdness (vents start and stop blowing)
While driving with my dash AC on this week the vents would continually start and stop blowing. But when I changed the controls from AC to MAX AC the vents blew consistently.
I searched the forums but didn't find this exact issue.
iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!
You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!
The vent flaps are all vacuum powered. Since you have a diesel engine, you have no engine vacuum. Up front under the windshield should be an electrically powered vacuum pump. It could be the vacuum pump is going bad and quitting every so often. With no vacuum, all airflow should be diverted to the defroster vents. The other possibility could be a leaking vacuum hose or vacuum motor that is causing the loss of vacuum and allowing the flaps to not stay on the setting you selected. Inserting a vacuum gauge in one of the lines might give you a clue as to what's going on.
__________________
Bob & Donna
'98 Gulf Stream Sun Voyager DP being pushed by a '00 Beetle TDI
Linear Mode
