Welcome from N/W Fl panhandle. Congrats on the new Coleman, We have a 2016 CTS 16 FB that we bought new, we love it. I have done a lot of mods to "make it my own" one thing, check your windows, mine had weep holes in the top and the bottom of the frame and no plugs on the top, I pointed this out to the service dept. ( who said they learned something and would check all the other units on the lot) and they ordered enough. plugs for the windows, which I siliconed and installed myself.
The reason for top and bottom weep holes is so the window can be used in either direction, but without the holes on the top being sealed in a heavy rain water can /will run into the hole and run down the window.
Roy & Mary Fralick and our 5 camping Chihuahuas, Gypsy, Sammy, Delilah, Pebbles and Mitzi