Dealer should be your advocate first...
From your post, it seems to me that you may be jumping the gun in writing everyone at Coachmen before the bigger and better seal can be installed. Don't assume it won't work. That sort of worry will eat you up. And don't panic. Your experience to date is not as bad as it may seem just now. It definitely sounds like you bought a product which has a flaw that must be addressed; however, it also seems that both your dealer and the manufacturer have been responsive in attempting to do so. From what you describe, they have not given up trying to help, nor has the second prescribed "fix" either been applied or failed yet. Sounds as much like a potential customer service success story in the making as a lawsuit at this point. I know it is frustrating. Hang in there, and document your attempts to work through this, but don't think everyone is your enemy (yet). Hopefully, with your dealer's continued assistance, the fix will be determined and applied and you will be back in the game without these worries. Stay after them, but remember they are trying to help resolve the problem. Hope you are back on the road soon. Best wishes!
2013 Windjammer 3008W
2006 Chevy Silverado 2500HD 6.0L w/Equalizer 4
Nights camped: 2012 (29); 2013 (26); 2014 (40); 2015 (43); 2016 (35)