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Old 06-13-2018, 03:28 PM   #21
miton 5052
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M.O.C. #21569
We just had our roof replaced with flex Armor, fantastic product, in the process of prepping the roof they had to remove both a.c.,s the rear one that is ducted had a 3 1/2" hole going to th attic, WTF .no wonder it v was so warm in here, one with the new roof and hole to the attic covered were able to keep cool with just 1 AC.the two larger vents on the ceiling are return air vents with filters that need to be cleaned good luck. Mike****
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Old 06-13-2018, 05:03 PM   #22
Clutchvarg
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M.O.C. #18622
A/c vents

Quote:
Originally Posted by AZ Traveler View Post
They should all be A/C ducts.
Hello,
Check your main A/C vent at the ceiling. On some units there is a diverter tab. If you can see it is open then most of the airflow comes out in the living area only. Flip it to the closed position and air will be diverted to the vents you mention. It will not force much air to the front of the unit but it's better than nothing.
It is kind of hard to see. You may have to use a step stool to get to it. I use a 1/2 inch dowel about 2ft long to move it.
Good luck
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Old 06-13-2018, 05:10 PM   #23
prk7
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I have the same model, all ceiling vents are for ac
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Old 06-13-2018, 05:39 PM   #24
bshgto
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M.O.C. #16013
and?

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Old 06-13-2018, 11:13 PM   #25
Berny Montgomery
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Originally Posted by AZ Traveler View Post
They should all be A/C ducts.
They are definitely A/C out put air vents !!
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Old 06-14-2018, 12:56 AM   #26
Kyle and Lisa
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M.O.C. #21685
Our 2018 3790RD put's out heat and ac in the living room and kitchen, although it is a heat pump. Only ac in the bedroom as it is not. Furnace supplies heat throughout the unit from the kitchen thermostat from the floor vents only.
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Old 06-14-2018, 01:11 AM   #27
marty173rd@aol.com
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M.O.C. #21239
A/c supply vents. Close slide on main unit and a/c will be distributed more evenly.
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Old 06-14-2018, 08:42 AM   #28
JohnBerge
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Quote:
Originally Posted by Machfun View Post
We recently purchased a 3791RD. I see these vents in the ceiling (see attached photo) but I can't figure out what they are for. The heat comes out of floor registers and the A/C only comes out at the one unit above the fireplace. Anyone know what these are for?
AC Vents
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Old 06-15-2018, 04:02 PM   #29
Alfmiester07
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M.O.C. #21934
Quote:
Originally Posted by Machfun View Post
We recently purchased a 3791RD. I see these vents in the ceiling (see attached photo) but I can't figure out what they are for. The heat comes out of floor registers and the A/C only comes out at the one unit above the fireplace. Anyone know what these are for?
Close off the main event, a/c will come out the round vents throughout your RV.
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