Originally Posted by Loneoak
Some people have been removing every other slat in the vents. This has been documented on Facebook.
First you make sure your return airs are open using the PVC pipe. Then you open the supply vents and trim the pvc that it attaches to so it doesn't extend up and partiually block the ducts. Then, it that still doesn't work you add the third AC so that you can run all three at the same time, then you're cool. You know how I know.
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
2017 3500 Dodge Maxi DRW 4X4, Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, etc.