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Old 08-03-2008, 05:43 PM   #1
1 Rivet Member
crazy.philip's Avatar
1971 27' Overlander
1976 Argosy 22
Jackpot , Nevada
Join Date: Nov 2007
Posts: 6
Leaky / Overflowing AC...

Hi everyone, I have looked for a thread on this but was unable to find any. If I am reposting old questions please direct me

I have a 1971 Overlander and I have done pretty well removing & resealing the windows & such, but:
I don't have a leak from the AC normally, but, when there is a really big downpour water will gush out of my AC unit usually after about 15-20 minutes of torrential rain.
The AC unit is open above the fan (I'm sorry I dont' have the AC unit model with me right now! I will post it) and I'm wondering if water that comes in through that fan opening drains through the AC condenser drain hose (which comes out by my tires) but in a really bad rain, some part of the AC fills up faster then that hose can drain it. Thus the no leaking/dripping for regular rain, then a big dumping of water durring serious rain, then the dripping & leaking usually stops before the rain has ended.

Is this theory crazy? again I'm sorry I don't have the AC unit info with me.
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Old 08-03-2008, 10:19 PM   #2
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1990 25' Excella
Currently Looking...
Glenburn , Maine
Join Date: Jan 2007
Posts: 142
Sounds like a good theory, except when the drip pan fills up from a plugged tube it usually overflows on to the roof...

I suspect there's a seam or gap at the rear of the unit that is hidden from casual inspection, but positioned just right to take the overflow from the A/C. Time to get up there and hunt for the gap -- sealant caulk in hand (or remount the A/C with new butyl caulking gasket).


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Old 08-04-2008, 08:19 AM   #3
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crazy.philip's Avatar
1971 27' Overlander
1976 Argosy 22
Jackpot , Nevada
Join Date: Nov 2007
Posts: 6
Mmmmm, thanks
I will investigate & report...
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Old 08-04-2008, 08:24 AM   #4
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1975 31' Sovereign
1980 31' Excella II
Sprung Leak , North Carolina
Join Date: Jun 2003
Posts: 7,173
Images: 40
Should have a Bay Breeze up there, unless it has been replaced at some point. If it is the original installation I am sure that the seals and sealant are long over due for some TLC. You will need to remove the unit to do the job properly and the Bay Breeze is one heavy sucker. You will need help! Adding sealant on top of old sealant may buy you a bit of time, but will be destined to fail soon.

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Why are we in this basket...and where are we going
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Old 08-05-2008, 08:45 PM   #5
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crazy.philip's Avatar
1971 27' Overlander
1976 Argosy 22
Jackpot , Nevada
Join Date: Nov 2007
Posts: 6
Now when I get back I just need to pin down a ladder...
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