A/C Vent Leak? 2014 Minnie Winnie

[Harpoon-WO]

I have a 2014 Minnie Winnie and I have an issue that whenever it rains I get water coming from my AC vent into the RV. Does anyone know of a good fix for this?

 

[Morich]

Likely to be a rood job! There are drains on the rooftop unit and those can get clogged with leaves, etc. clearing that may get it done. But there are also times when the packing between the rooftop unit and roof give up and let water in.
Two major questions, so I start with the easier and remove cover to look.

Is it junk clogging the drains for item 14, so that water gets deep enough to run over at the red circle and go inside?
Or is the seal between that plate and roof broken down to let water running along the roof top go inside?
The first one, is semi-easy to clear, the second needs the whole unit removed and replace the seal! UGH!
I find first one more often, so wish you luck? Leaves and debris can get through the cover vents pretty easy. The seal is pretty well hidden from sun to eat it?

 

[Harpoon-WO]

Thanks for the advice. I did check the drain and I didn't find any clogs so I'm guessing its the seal between the plate and the roof. What type of sealant do you think would work the best?

 

[be happy]

Just an add on, you migh want to take the interior cover off and make sure the bolts that hold the unit to the roof are tight. Sometimes the loosen up causing the issue you have. If you head to the roof you might want to take a tube of Dicor RV roof sealant.

 

[ldfeat]

When tightening he 4 bolts from inside, don't try to get them as tight as possible. Too much can cause damage to the unit. You may be surprised how loose they feel when you first try tightening them. Just don't over-do-it. Good luck, Larry 2014 Reyo P.

 

[klook]

Do not just gob a bunch of any sealant around the ac unit. That will fail. Tighten it down first, then remove it look at the seal, you will see where it failed, and either replace it now that you have it off or use a sealant like silicon that is a weak glue so it can be removed in the future without tearing the membrane.