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Old 09-13-2012, 05:31 PM   #1
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Roof Leak... HELP

It's been raining for a couple of hours here in Austin, Texas and suddenly we noticed water dripping out of the vent just in front of the front A/C intake. The A/C had not been running, so we knew it wasn't from a frozen compressor. We removed the vent cover and noticed that the water was coming from between the vinyl and the layer just above it, rather than from above. So, somewhere, water was leaking into the ceiling from the outside and running down into the opening where the vent is. While it's raining, I went up on the roof and looked where the leak might be. It's sort of below the box from which the cables run into the satellite dome and from the antenna. I checked around the box and it didn't appear there were any leaks. Water is pooling on the roof from the rain so that may contribute.

We once had water come through the antenna crank when it was humid and the A/C was running a lot, but we had the seal checked and the service guy said it appeared to be okay. I removed the antenna crank and checked inside there but it didn't appear to be wet. Could the water be running in thru the antenna swivel and running down inside the ceiling?

Has anyone experienced this or have any ideas.

Jerry & Shirley Friedman
2014 Chevy Silverado 3500HD
2015 Mobile Suites 38RSSB3
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Old 09-13-2012, 06:07 PM   #2
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Alpine Owners Club
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Jerry, Mine leaked at the plastic square box where the cabels enter the roof. When we removed the 4 screws and the plastic cover the hole had no caulking in it. We filled the hole with dicor self leveling caulk, caulked around the base of the box with the dicor and used GE Silicone to "gasket the lid. No problems since. I don''t believe they left that hole in the roof totally open...or maybe I do! (teh WE is really Leale's RV in San Jose)

Matt & Lorraine Moniz
'05-36MDDS Alpine / '14 Honda CRV
Sunnyvale, CA
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Old 09-14-2012, 12:12 AM   #3
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Did you try tightening the 4 bolts through the roof a little?

When I had my 2000, I had a rain leak from the AC. It turned out That when WRV cut the hole for AC, they drilled the first hole on the wrong side of the aluminum roof support and left the hole, I guess figuring the gasket would cover it. When I parked in a certain direction water would run in. They ended up pulling the AC and fiberglassing up the wrong hole up. I guess you never know what you might find out.
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2007 Toyota 4-Runner
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Old 09-16-2012, 08:58 AM   #4
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remove the square a/c ceiling fitting, about 14 inches sq. after taking out the 2 knock outs and tighten the 4 bolts that hold the a/c unit down to the roof.. also I found that on mine I had a fisbee sized cover on the roof which did not have any sealant under it and water went under it to the ceiling..make sure you remove it and not just look at it..may be the problem i hope, it was on mine..Mel
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Old 09-16-2012, 10:35 AM   #5
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Jerry there is a drain in the A/C which may be plugged up as mine was or slow draining. When mine was plugged I had Niagara Falls inside the coach.
Dave Fernandez
2001, 38ft FDDS, 350 ISC, Tow 2004 Yukon
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Old 09-16-2012, 11:15 AM   #6
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I agree with Dave cause when the Dometic guy removed both a/c's to check the gasket seals, the plastic cups that collect the water and send it down a small tube to the bottom of the rig were broken maybe just from heat or whatever so water didn't go down the tube.. we eliminated that and just drain the water over the roof and now hopefully will continue to solve my problem. Mel

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leak, roof

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