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11-05-2015, 04:58 PM
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#1
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Junior Member
Join Date: Apr 2014
Posts: 3
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Water leak from across vents
When our rooftop ac kicks on, water pours from the front ac vent in the ceiling. It's also leaking from the ac vent over the bed. The rear vent also leaks with heavy rain.
Any ideas on cause? The rear ac gasket was replaced on roof ac when unit was new. 2012 Itasca Ellipse
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11-05-2015, 05:40 PM
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#2
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Senior Member
Join Date: Apr 2013
Posts: 370
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If the gasket was replaced when new, I would suspect the gasket failed again.
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2003 Itasca Sunrise 32v F53
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11-06-2015, 08:09 AM
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#3
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Senior Member
Fleetwood Owners Club American Coach Owners Club
Join Date: Mar 2011
Posts: 6,767
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Your A/C drain vents on the roof could be blocked. Also, it's possible you unit could be freezing and dumping condensation out the air vents.
__________________
2014 American Eagle 45T
DD 13, 500 HP
Pulling a Honda CRV
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11-06-2015, 11:20 AM
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#4
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Senior Member
Join Date: Nov 2009
Location: Warren, Oregon
Posts: 2,559
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I pulled the inside covers on my AC and the bolts that hold them down had backed off a lot, about 1/4", just tighten them up but mine did not leak. Just part of regular maintenance.
2 stroker
__________________
2006 Country Coach Inspire 360 40ft Genoa Designer Series, Samsung 197 RR
Cat C9--STEEL & COPPER Bolt Together Radiator w/ updated rubber mounting
SilverLeaf 330 Magnum 2812 PSW 2011 Ford Edge Sport-Air Force One
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11-06-2015, 11:42 AM
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#5
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Registered User
Join Date: Mar 2010
Posts: 8,777
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Quote:
Originally Posted by 2 Stroker
I pulled the inside covers on my AC and the bolts that hold them down had backed off a lot, about 1/4", just tighten them up but mine did not leak. Just part of regular maintenance.
2 stroker
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The correct inch/pound "torque specs" for the roof A/C mounting bolts can be found in the installation and owner's manuals for your particular A/C units.
(I find that I mine need to be re-tighten to those torque specs every 1 or 2 years).
Mel
'96 Safari, 144k miles
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11-07-2015, 08:30 PM
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#6
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Senior Member
Join Date: Oct 2014
Location: Port Orchard, WA
Posts: 4,217
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Quote:
Originally Posted by mel s
The correct inch/pound "torque specs" for the roof A/C mounting bolts can be found in the installation and owner's manuals for your particular A/C units.
(I find that I mine need to be re-tighten to those torque specs every 1 or 2 years).
Mel
'96 Safari, 144k miles
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I thought you just tightened it till it starts turning easier, then backed off a little? . . . No?
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Scot & Laura Kellersberger, U.S. Army (ret)
Newmar 4 wheel drive Dutch Star 3891, SOLD
Now RV'ing on the water in a Trawler!
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11-08-2015, 06:44 AM
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#7
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Registered User
Join Date: Mar 2010
Posts: 8,777
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Quote:
Originally Posted by Hit_the_Rhod
I thought you just tightened it till it starts turning easier, then backed off a little? . . . No?
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Hit_the_Rhod
You're joking, right???
If you "tighten", (aka: "rotate clockwise"), the A/C mounting screws they will NEVER "turn easier".... (unless they snap/break).
Mel
'96 Safari
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11-08-2015, 11:59 AM
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#8
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Senior Member
Tiffin Owners Club
Join Date: Feb 2015
Location: North Florida
Posts: 371
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tighten till it clicks right! OH NOOOOOOO
__________________
Mark Miller
2016 tiffin Pheaton
Go Gators
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11-09-2015, 07:31 AM
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#9
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Senior Member
Join Date: Oct 2014
Location: Port Orchard, WA
Posts: 4,217
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Quote:
Originally Posted by mel s
Hit_the_Rhod
You're joking, right???
If you "tighten", (aka: "rotate clockwise"), the A/C mounting screws they will NEVER "turn easier".... (unless they snap/break).
Mel
'96 Safari
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Yes, I'm joking! turning "easier" again means either stripped, or it's about to break.
My experience is in the aircraft industry. Lots of torque wrenches, different sizes, inch lbs, foot lbs, actually most aircraft parts are torqued to inch lbs instead of ft lbs. They can do that with better quality hardware, finer threads (read expensive), mostly to save weight.
There were applications where the tightness of a component was measured not with a torque wrench, but rather by measuring how much the bolt or fastener actually "stretched" during the tightening process!
Most people in the auto industry figure tightness by whether they use a regular wrench, or if they have to put a 4' cheater bar on it!
__________________
Scot & Laura Kellersberger, U.S. Army (ret)
Newmar 4 wheel drive Dutch Star 3891, SOLD
Now RV'ing on the water in a Trawler!
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11-10-2015, 12:06 AM
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#10
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Senior Member
Holiday Rambler Owners Club
Join Date: May 2013
Location: North Myrtle Beach, SC
Posts: 365
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Quote:
Originally Posted by ritafreeman7
When our rooftop ac kicks on, water pours from the front ac vent in the ceiling. It's also leaking from the ac vent over the bed. The rear vent also leaks with heavy rain.
Any ideas on cause? The rear ac gasket was replaced on roof ac when unit was new. 2012 Itasca Ellipse
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Our rear ac vent leaks during heavy rain also. I changed the gasket and thought the problem was solved, but it still leaked. It was not the gasket..the water was coming in above the gasket. So I took off the cover and drilled some holes in the channel that already has slots in it for water drainage. I drilled holes in the corners for extra drainage. Still leaked during a downpour.
Next, I took the ac unit out and shimmed up around the 14"X14" opening with 1/2"X2" plywood strips between the aluminum roofing and the styrofoam insulation. I had hoped that this would lift up the ac unit enough to prevent the leak. Nope, still leaks. I can see on the roof where the ac unit's weight has squashed the roof down and water will collect underneath. I m going to have to try to get some thicker (and wider) plywood, maybe an additional 3/4" on top of the 1/2" I used already.
__________________
Brad and Pat, the Dad and Mom-Dawgs with Kiddo and Dinah-Mite, the Dawter-Dawgs full timin' in our 2002 HR Neptune DP with 2017 Grand Caravan toad
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