Monsoon Resulted in Leak from AC Ductwork. Why?

[Holy Grail]

I have a 2015 Flying Cloud 28. During recent monsoon rainstorms in West Virginia, my trailer developed a water leak dripping from the rectangular ceiling vent located in the rear bedroom above the TV. I've owned the trailer for a year. I've driven in the rain and the trailer has sat parked in the rain, but never a leak until now. Can anyone tell me where the leak might be originating? I was surprised that the water was dripping from the ceiling duct at quite a steady rate. Please note that my FC has two roof air conditioners. Are there some leaks that can't be stopped? Does a leak from torrential rain fall into this category? Any comments would be appreciated. Thanks!

[AnnArborBob]

I would hesitate to pass judgement about an AC leak based on your recent experience in West Virginia (most of the State received some form of "once in a lifetime" damage from those storms .) Rooftop AC units will all leak given the proper amount of rain and wind direction. This is also true of AC units on the roof of "fixed" office buildings. If the leak recurs under more normal conditions then I would take it to a dealer since based on the year of your unit you are likely still under the 24 month warranty.

[Holy Grail]

Thanks for your feedback. I'm planning on having the trailer checked out at the dealer.

[Ohiobrits]

Holy Grail,

Did you get this figured out? I just had the same experience driving in torrential rain in the UP a few days ago. I have a 2015 27FB also with the twin A/C units. It dripped slightly out of the A/C vent in the front bedroom onto the floor and a few drips onto the toilet seat. Curb side only. The AS is stored outside and has been driven in similar heavy rain previously and it has never leaked before. I was wondering if water was blown into the A/C cowling and somehow got into the duct.

[TG2500]

I had a similar issue (leak from rear bedroom AC duct (2016 26U) during heavy rain) while at the international. Putting the trailer slightly off level (dropping the nose down) solved the leak immediately as a short term fix.

Once home, I got on the roof and discovered the factory solar panels are screwed down with rubber gaskets which look like a lot of rain and wind allowed the water through. I throughly sealed the connections to the solar panels and the roof and have had no leak problems since.

[Holy Grail]

Hi. Thank you for your responses. In the way of an update, next month I'm taking my FC 28 to Colonial Airstream to be checked out. I'll update everyone then. Thanks again for your input.

[Ohiobrits]

I drove again in another heavy downpour similar intensity to the last but without the 40 mph winds this time and no leak. I think as one of the earlier posters indicated a leak might happen in the right conditions - enough water and correct wind direction. Probably nothing for me to fix but I will climb on the roof when I get home and take a look.