How to keep AC vents from falling off the ceiling.

[rickmc1219]

Recently purchased a 2017 International 30 ft , during the process of our first shake down camp-out , one of the silver round disc ceiling air vents fell during the middle of the night, above our bed and landed on my wife. Needless to say, this didn't go well. Another fell in a different location later in the day. So, has anyone come up with a sure fire way to stop these little events. Happy wife-Happy life.

[KelloggKid]

There have been several threads on this issue over the years. If you type "AC Vents" into the blue search box at the top of the forum you will find many interesting discussion with suggestions for resolving the problem. Here are just a couple of the threads that show up when you do a search:

http://www.airforums.com/forums/f164...ut-190450.html
http://www.airforums.com/forums/f542...-156689-2.html

[ghaynes755]

Newer trailers now have the vents attached with a pop rivet. See this post showing where the rivets are located. To correct simply bend out the mounting tabs. I wish mine weren't attached with the rivets.


http://www.airforums.com/forums/f540...ml#post2286703

[Mollysdad]

If mine fell it was always after traveling.
So I looked carefully at what I had. First, the hole in the ceiling is not perfectly round, there are two 'burrs' opposite each other, perhaps from the tool that punched the holes(?). The part that falls has a number of grey plastic 'grippers' that are intended to grab the ceiling.
I simply took the vent, aligned two of the grippers with the burrs and pushed very firmly until I heard it click.
4500 miles later, none have fallen.

[ekbruster]

I ended up using a piece of flat stock aluminum and bolting up the vent assembly, as my cutouts for the vents were a hack-job at the Airstream factory. Details on parts/instructions can be found here: https://www.instructables.com/Airstr...ling-Vent-Fix/