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09-06-2019, 02:30 PM
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#1
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New Member
Join Date: Jul 2019
Location: Houston
Posts: 1
M.O.C. #24415
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Are the AC’s sinked
We have a 3661RL 2017 Montana. It has two AC’s. The rear AC has a heat pump, while the bed room AC is typical. We set the living room AC 72* at night, along with the bed room AC at 70*. The bed room AC shuts off during the night while the living room never stops. The problem is that the bed room AC during the night will warm up to 78* and will not turn on no matter what the thermostat is set on. During the day, the bed room AC will come on. It’s very uncomfortable at night! We live in east Texas and our summers are brutal.
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09-06-2019, 03:15 PM
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#2
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Site Team
Join Date: Jun 2011
Location: Wilsey
Posts: 18,799
M.O.C. #11455
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First of all, welcome to the forum! It sounds like you are feezing the bedroom unit up at night. If you haven't done the PVC pipe mod to your return air vents then that's part of the issue because your ducts will be collapsed. Also, if you close the door to the bedroom and bath you may not be getting enough return air. On our rig we've done the PVC, opened the supply vents by 2, cut down the extra shaft going into the ducts so the flow isn't restricted and leave the bathroom door open about an inch at night.
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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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09-06-2019, 08:05 PM
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#3
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Montana Master
Join Date: Jun 2017
Location: POINTBLANK
Posts: 1,916
M.O.C. #19944
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DQ, the bedroom should not need the PVC should it? If it's like me 305RL there is a direct return on the unit. I do agree on the freeze up but that might be due to low Freon. Wonder it its switched to feed ducts and their blocked, would that impact operation?
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RAM 22' DRW 3500 Crew LB 40 gal reserve tank / RETRAX Bed Cover / 2020 373RD HC / IS / MOPEKA Tank Monitor / Furrion Side&Rear Cameras
Slide Toppers / EMS-HW50C / Sailun 85's
3rd AC / Dometic 320
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09-07-2019, 06:29 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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Quote:
Originally Posted by Ram Montana High Country
DQ, the bedroom should not need the PVC should it? If it's like me 305RL there is a direct return on the unit. I do agree on the freeze up but that might be due to low Freon. Wonder it its switched to feed ducts and their blocked, would that impact operation?
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They have a 17 with the whisper quiet in the bedroom (if it came with 2 from the factory) just like ours and yes they do need pvc in the ducts. Just showed that to another 17 parked behind us in this park.
__________________
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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