I have a 2015 Voltage 3990 with 3 a/c units. The Garage and main a/c work as I think they should, however the bedroom A/C is very loud when it kicks on and runs (air rushing noise). There is a flap on the face of the a/c unit that seems to allow air to dump from unit or if closed I suppose it is to thru ducted vents. Either way it is real loud. Anyone have any suggestions on a fix? Also the thermostat controller will not adjust fan speed, Is this supposed to be that way (it is either on or off and has no hi or low).
I think mine is loud in the bedroom also. I contribute it to the fact that the floor is higher than the rest of the RV making the A/C closer to me. That and the fact that the air dump is direct as opposed to the ducted air in the living room.
I don't have a garage unit so comparison between the same level A/Cs isn't possible.
2013 Voltage 3800, 2012 Chevy 3500 HD
2010 Yamaha V Star 950
2009 Yamaha Raider
Volunteering with Habitat for Humanity Caravanners