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Old 05-24-2019, 11:56 PM   #1
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Rain water leaking in return air vent above bed

Just had a hard rain / high winds pass through tonight, high winds and rain first then just a steady rain for about two hours. Getting ready for bed and found water dripping from the vent opening above the bed. Anyone else experience this? Is there a fix?? I will probably call the rep and factory Tuesday!
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Old 05-25-2019, 01:56 AM   #2
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Yes, First make sure the vent is closed tightly. If it's not hard winds can blow water between the top vent cover and the box it seats on. Then check the vent cover for cracks.

2nd, go up on the roof and check to make sure the caulking around the vent is not cracked and leaking. This issue would be worse than the first as it could allow water inside the roof which could rot or cause mildew/mold.

Identify which issue it is.

Also may consider putting a cover over the vent that prevents this. https://www.etrailer.com/RV-Vents-an...0aApj8EALw_wcB

I use these type. Not too expensive, allows me to have the vent open even when it's raining except in the worst possible wind storms without water coming in the vent. They also protect the cheap vent covers that come on campers from UV damage which makes them brittle and prone to leaking/cracking. Easy install, less than 15 minutes once your on the roof and ready to go.
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Old 05-25-2019, 09:25 AM   #3
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when you say return air I'm going to assume you have either an AC or a heat pump installed over the bed. It may be that the gasket is leaking around the bace and needs to be adjusted.
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Old 05-25-2019, 09:56 AM   #4
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I tried to post pics but canít figure it out with my new phone....🥴
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Old 05-30-2019, 08:52 PM   #5
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Where did it come from?

Also, look into the possibility that the water migrated from a leak somewhere else and found an easy drip path at the ceiling vent penetration. I'd check all the roof caulking around the rear part of the roof.
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Old 05-31-2019, 06:41 AM   #6
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Quote:
Originally Posted by SeaDog View Post
when you say return air I'm going to assume you have either an AC or a heat pump installed over the bed. It may be that the gasket is leaking around the bace and needs to be adjusted.
This.
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Old 05-31-2019, 08:16 AM   #7
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Assuming you have a Dometic AC, like mine, water ingress in return vents has been a significant problem much discussed on the Montana Owners forum. It occurs on my Montana at times. It is not a gasket problem. There are holes in the AC drain pan that need to be relieved. Supposedly, Dometic has the fix on their website. If you can't find it there, search the Montana forum.
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Old 05-31-2019, 08:17 AM   #8
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"Relieved" ?????

For the record, two Dometics in my Berk and no leaks.
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Old 05-31-2019, 09:02 AM   #9
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"Relieved" equals "drilled bigger."
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Old 05-31-2019, 10:12 AM   #10
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OK, new one on me. FYI, the drain pans on the Berks have no holes in them except one which has a tube connected that runs to the ground inside. (No water dripping off the roof.) Nothing to "relieve".

That said, OP said it leaked in heavy rain, so AC operation/condensate is not the issue here.

Back to the seal.
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