2013 Montana Big Sky AC concern Model 3750FL
I have a question on the ac unit in our Montana Big Sky Our bedroom AC is a 15000 BTU AC and it works fine with no complaints. Our kitchen AC is 13500 BTU and it serves the front of the unit also...
Forum Discussion
it is very common for the duct work on trailers to be very poorly done. You can 1) take it to a dealer who is working for YOU, not the manufacturer or the selling dealer or 2) do it yourself.
If you do it yourself, easiest way is to buy a waterproof USB camera, 20 ft cord, on ebay, less than $25 delivered to your door. Load the software, plug in the camera and use the camera to snake thru the a/c ducts. I'm pretty sure you will find that much of the air is escaping into the space above your ceiling and the roof of the trailer. You can insert the camera at each vent point and check both directions, all the way to the end of the duct run - make sure ends are blocked, not dumping into the under-roof area.
Also, it is very common for the a/c grill to allow conditioned air to feed back into the intake air, severely limiting the cooling for your unit. Do a search and find pictures of RV a/c units where the ceiling unit is removed and the area between return and conditioned air is blocked from short circuiting.
If you do it yourself, easiest way is to buy a waterproof USB camera, 20 ft cord, on ebay, less than $25 delivered to your door. Load the software, plug in the camera and use the camera to snake thru the a/c ducts. I'm pretty sure you will find that much of the air is escaping into the space above your ceiling and the roof of the trailer. You can insert the camera at each vent point and check both directions, all the way to the end of the duct run - make sure ends are blocked, not dumping into the under-roof area.
Also, it is very common for the a/c grill to allow conditioned air to feed back into the intake air, severely limiting the cooling for your unit. Do a search and find pictures of RV a/c units where the ceiling unit is removed and the area between return and conditioned air is blocked from short circuiting.
