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Old 07-27-2014, 02:27 PM   #1
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2009 27' FB Flying Cloud
1991 35' Airstream 350
Siloam Springs , Arkansas
Join Date: Oct 2006
Posts: 1,490
AC drip pan broken and leaking

On our 1991 350 LE, the pervious owner installed a new Dometic low profile AC, but the drip pan is cracked and leaking.

I have seen the new catchment system, and I am able to get the unit on and off the roof.

What I need a little info about is this:

As I understand it, the current drain system is actually a "catch pan" installed as an extra part under the AC, that should be sealed to the roof sheets?

And, the new catch system comes with a new gasket to double the original for added height. So, since this AC has been installed and clamped down, should I replace the old gasket to re-install the unit with the new catch pans or with the supplied gasket be ok?

Thanks in advance for any input.



Jeff & Cindy
Hunter RIP

'09 27FB Flying Cloud
'91 350 LE MH
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Old 07-27-2014, 02:40 PM   #2
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Naples, FL , Hood River, OR
Join Date: Dec 2005
Posts: 6,793
If you intend to use Dometic's auxiliary drain kit, you should also replace the existing A/C gasket, as it will be very difficult to perform the installation with a gasket that is already compressed.

PM me if you need some detailed explanations.

Lew Farber
RVIA/RVDA Nationally Certified Master Tech
Master Tech Energy Systems, Inc.
AM Solar Certified Installation Center
Lifeline Batteries**Magnum Inverters

Lew Farber...RVIA Certified Master Tech...ABYC Certified Master Marine Electrician
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Old 07-27-2014, 03:27 PM   #3
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1985 25' Sovereign
Venice/Nokomis , Florida
Join Date: May 2009
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If you also want to fix the crack in the drain pan, use JB Weld epoxy, it is a miracle product! Worked for me, Grwat!
Bill and Janice, We're lovin' it! (Airstreaming)


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