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05-03-2015, 05:16 PM
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#1
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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I guess I just expected more
A neighbor has a 3160 that has had an annoying rattling noise in the ceiling around the rear A/C. His dealer was no help in solving the riddle other than installing a piece of foam inside the supply duct???? I told him I'd check it out. I popped the bonnet off the A/C and removed four 5/16" lag bolts and tilted the A/C up and peered inside the ducts ... wires just laying around dancing to whatever song they heard. I fixed that and went on to affixing the A/C back on to the roof. I then realized all that was holding the A/C to the roof was the 4 lag screws ... no wood backing... just the plywood roof sheeting ... no sealant around the lag screws other than a rubber washer under the head of each lag screw inside the A/C frame. At least the old style A/C's were clamped to the roof with long bolts between the inside ceiling, thru the roof, and into riv-nuts in the A/C frame. Silly me ... I just expected more.
PS : This is the whisper quiet systems now in production.
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05-04-2015, 12:14 AM
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#2
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Montana Master
Join Date: Jan 2005
Location: Goshen
Posts: 1,058
M.O.C. #2827
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That is the way the air conditioners have been installed for several years! It is amazing that there does not seem to be any leak issues. At least, not that I'm aware of.
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05-04-2015, 12:44 AM
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#3
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Montana Master
Join Date: Sep 2014
Location: Full Timer In Naples, Florida
Posts: 1,049
M.O.C. #15731
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What year is that monty? because I might check that but I have never had the bonnet off, can you tell me what to look for?
Thanks
__________________
2017, 3500 Ram Big Horn, 4x4, Crew Cab, DRW, Aisin Transmission, 4:10. Curt Q20, 2014 Mountaineer 331 RLT, Sailun's on the rv and truck.
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05-04-2015, 02:40 AM
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#4
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Montana Master
Join Date: Feb 2005
Location: Haysville
Posts: 4,261
M.O.C. #3085
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Eagleback ... it was a 2015. When you remove the screws holding the bonnet on, you'll find 4 lag screw heads in the pan of the A/C housing. They screw directly into the roof sheating. They should be chinched down enough to compress the rubber snubbers under the pan, but not to where the pan is touching the roof. The wiring is in front of the evaporator and down inside the return duct. You can't see it unless you remove the sheet metal lid on the evaporator or take the A/C off the roof and tilt it to one side.
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05-04-2015, 04:15 AM
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#5
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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Sounds like "Whisper quiet" is only available if you're lucky enough to live next to Diesel Guy. You're obviously a great friend and a good guy to have around!
__________________
Dick, Joyce, Diego, Picatso and Gustav
2017 3720 RL, and 2013 HC 343RL
Pullrite Hitch, IS, Disk Brakes, 3rd AC, Winegard Traveler, Bathroom door mod, Dometic 320, couch for desk swap, replaced chairs, sun screens, added awnings, etc.
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05-04-2015, 04:40 AM
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#6
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Montana Master
Join Date: Feb 2004
Location: Brandon
Posts: 3,944
M.O.C. #1034
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I think most of us expect more but seem to get less. You are a great neighbour to have and now a certified Mobile Tech.
__________________
Darwin & Maureen DeBackere
Minnedosa, Manitoba, Canada
2011/3500/Silverado/4x4/DRW/Duramax
2017/3721RL/Legacy Pkg./Pressure-Pro
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05-05-2015, 10:35 PM
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#7
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Montana Fan
Join Date: Mar 2011
Location: gresham
Posts: 489
M.O.C. #11202
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Quote:
quote:Originally posted by dieselguy
Eagleback ... it was a 2015. When you remove the screws holding the bonnet on, you'll find 4 lag screw heads in the pan of the A/C housing. .......
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Now, that's not the entire, whole truth, and you know it!
.....you will also find a nest of angry hornets, yellow-jackets, or wasps, too.
Before I ever take that damned thing off, I always beat on it with a very long pole to see if I stir up something first. You don't ever want to be up on the roof standing around with a screwdriver in your hand as your only weapon, nowhere to run when several dozen torqued-off A/C cover denizens are after you with a vengeance! ...ask me how I know this.
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