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01-12-2022, 10:02 AM
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#1
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Seasoned Camper
Join Date: Jan 2019
Location: Holyoke
Posts: 96
M.O.C. #23350
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Insulation in Ceiling
Does anyone know if our 330rl 2019 MHC model has a fiberglass batted roof?
And do we have a racetrack AC duct system? We are trying to troubleshoot
and rectify a water problem in the back living room roof which potentially is coming through the AC duct system.
__________________
Randy/Debbie
2019 MHC 330RL
2019 Ford F250, 4.30 axle ratio,
Ext cab, 6.2L, gas
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01-12-2022, 03:17 PM
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#2
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Montana Master
Join Date: Jan 2018
Location: Austin
Posts: 2,430
M.O.C. #21044
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Below is a screen shot from youtube video Home with The Hoopers - Keystone Montana Factory tour (at about the 11:00 mark). You also have the racetrack ductwork that you can see in this screen shot.
https://www.keystonerv.com/keystone-...s-factory-tour
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MikenDebbie Aggie ‘77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
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01-12-2022, 05:37 PM
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#3
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,709
M.O.C. #24086
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In the files section is a TSB by Dometic regarding the condensation drain holes in the rooftop unit.
Some units were installed incorrectly causing the drain holes to be blocked and water entering the duct work.
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Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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01-22-2022, 11:18 AM
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#4
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Seasoned Camper
Join Date: Jan 2019
Location: Holyoke
Posts: 96
M.O.C. #23350
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what files section? What is TSB?
__________________
Randy/Debbie
2019 MHC 330RL
2019 Ford F250, 4.30 axle ratio,
Ext cab, 6.2L, gas
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01-22-2022, 12:52 PM
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#5
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,389
M.O.C. #4831
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Quote:
Originally Posted by Wmass camper
what files section?
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Near the top of the page in the 2nd, smaller brown ribbon is the link to the Files section where various manuals are stored. In the following pic, it is just to the right of the circled "User CP"
Technical Support Bulletin - Lippert has a bunch of them about various subjects relating to their products. Here is a link to a favorite one for hydraulic Level Up users.
https://support.lci1.com/documents/t...raulic-systems
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
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01-26-2022, 01:44 PM
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#6
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Seasoned Camper
Join Date: Mar 2020
Location: Kingsport
Posts: 56
M.O.C. #25935
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A bad or pinched seal on the rear A/C will also cause the same problem. During a storm, water will gush in through the street side air return duct in front of the TV. Aaaand, the roof will quickly rot out. You can no longer peel/patch/recover with these membranes, it requires full roof replacement @ $9300 (for a 331rl). Flexarmor is a couple of thousand less.
__________________
Maurice & Patricia & Bella & Tigger & Allana & Maximus
Kingsport, TN
2020 MHC 331RL
2014 RAM 2500HD SLT LB 4x4 6.4L SRW
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01-26-2022, 02:17 PM
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#7
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Established Member
Join Date: Nov 2016
Location: Putnam
Posts: 13
M.O.C. #19252
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had same problem, they put a new gasket under air condition, also after that they never sealed the Styrofoam that covered the compressor, so that took care of water leak out of return for air conditioning
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01-27-2022, 05:47 AM
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#8
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Seasoned Camper
Join Date: Jan 2019
Location: Holyoke
Posts: 96
M.O.C. #23350
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DH diagnosed the problem. Removed Styrofoam shroud and found sawdust and Styrofoam pellets blocking the drain trays causing the water from the coil to back up into the return air duct work. Cleaned it out. Solved the problem.
__________________
Randy/Debbie
2019 MHC 330RL
2019 Ford F250, 4.30 axle ratio,
Ext cab, 6.2L, gas
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