I have a 2016 Heartland rw 425. When it rains (hard) I get water dripping (running) in through the AC vent. When I pull the vent off I can't visually see any holes. I'm in southern Maryland St Mary's county and we have a hurricane coming up the coast that could drop a lot of rain. I plan to get on the roof today to check the caulk around the unit. Any help or other ideas will be greatly appreciated. I'm a full timer and the dealer I bought from is 5 hours away and I can't afford to take it and drop it off for an extended period of time. Thanks for any help.