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09-26-2019, 02:53 PM
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#1
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Senior Member
Join Date: Apr 2017
Location: NW Wisconsin
Posts: 130
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Bathroom Fan replacement wont fit 28.5 RSTS
We were going to replace the loud inefficient OEM bathroom fan in our 28.5 RSTS. The inside "garnish" trim measures 8.5 inches high/deep when I take it down. The Maxxair 6401 fan I bought only comes with a 6 inch deep inside trim garnish. It doesn't appear you can use the existing garnish trim because the corners are not square but have little indents in them. I called our dealer parts shop and their only replacement fan garnish "boxes" are also only 6 inches high, and that is all I can find online as well. Surely others must have successfully installed a replacement fan, but what to do about the big 8.5 inch tall/deep garnish box in the ceiling??
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Dave Lisa and Lily
2022 321 RSTS
2022 F350 6.7D
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09-26-2019, 03:24 PM
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#2
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Member
Join Date: Mar 2018
Location: Loganville
Posts: 59
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I have been looking in to replacing my OEM fan as well and read several posts on this forum saying the new trim piece was to short. They reused the original trim piece by cutting a small slit the top corners. They said this allowed it to fit the new fan.
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2018 Jayco 293RKDS
2015 Ram 2500 6.7L
B&W Companion
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09-26-2019, 03:34 PM
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#3
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Senior Member
Join Date: Oct 2016
Location: Saint Thomas, PA
Posts: 2,234
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Contact maxxair and see if they offer a deeper trim piece.
Earl
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2017 Eagle 293RKDS, factory ordered, lots of mods and upgrades. More than I can list.
2018 Ram 3500 crew cab long bed SRW diesel 6spd Aisin 4wd Tradesman.
B&W Ram puck 5th wheel
Line-X premium
Mopar wheel to wheel steps
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12-11-2020, 11:53 AM
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#4
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Junior Member
Join Date: Dec 2020
Location: Mesa
Posts: 3
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Anyone else have any more info on this? The fan installed in my 2018 28.5 RSTS is loud and annoying. Interestingly is has a unique 1/4 turn open and close system that I can't see to find any information on, I'd love to buy an insert and keep using the design. Does anyone know who the manufacturer is?
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12-11-2020, 12:17 PM
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#5
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Senior Member
Join Date: Jan 2019
Location: Cincinnati
Posts: 1,186
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trim
If you can't make the old one work, trim it out with pvc-type trim from home Depot. Looks like shiny painted wood.
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 Ford F250 6.2 Gas, 4X4, Short Bed, Companion Hitch
2019 Jayco 28.5 RSTS, MorRyde orbital pinbox.
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12-11-2020, 01:12 PM
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#6
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Senior Member
Join Date: Jul 2020
Location: Gardner, MA
Posts: 226
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I replaced mine with a Vortex ll.
It might work for you.
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12-11-2020, 01:34 PM
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#7
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Senior Member
Join Date: Jun 2018
Location: Atlanta
Posts: 265
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Those are super easy to install. Bonus is no outside changes made.
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12-11-2020, 03:24 PM
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#8
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Junior Member
Join Date: Mar 2019
Location: Titus
Posts: 25
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Replaced our oem bathroom fan with a Fantastic Fan and had to use the original trim inside to finish it up. Installed smoothly and looks fine.
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12-11-2020, 04:06 PM
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#9
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Senior Member
Join Date: Feb 2019
Location: Schertz
Posts: 1,020
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Quote:
Originally Posted by davolson
We were going to replace the loud inefficient OEM bathroom fan in our 28.5 RSTS. The inside "garnish" trim measures 8.5 inches high/deep when I take it down. The Maxxair 6401 fan I bought only comes with a 6 inch deep inside trim garnish. It doesn't appear you can use the existing garnish trim because the corners are not square but have little indents in them. I called our dealer parts shop and their only replacement fan garnish "boxes" are also only 6 inches high, and that is all I can find online as well. Surely others must have successfully installed a replacement fan, but what to do about the big 8.5 inch tall/deep garnish box in the ceiling??
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Your old one should easily fit after a little trimming. I installed a MaxxAire 7500 and I had to use the old trim, just notched out each corner and trimmed length on all four sides just a little with some strong scissors. Looks new.
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2018 Ram 3500 CC Longhorn LB SRW w/timbrens
2019 Jayco Eagle 355MBQS
Pullrite 2600 Superlite
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12-11-2020, 04:59 PM
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#10
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Senior Member
Join Date: Jun 2019
Location: Georgetown, MA
Posts: 338
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Quote:
Originally Posted by rkymntsno
Your old one should easily fit after a little trimming. I installed a MaxxAire 7500 and I had to use the old trim, just notched out each corner and trimmed length on all four sides just a little with some strong scissors. Looks new.
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X2
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2019 Eagle 355MBQS with a long list of modifications
2018 GMC 3500 Turbo Diesel DRW
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12-12-2020, 09:33 AM
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#11
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Junior Member
Join Date: Dec 2020
Location: Mesa
Posts: 3
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This is the fan in question, if you look at the open and close system, its 1/4 turn on the knob and the black doors open and close against the holes in the top piece. If I use an insert like the vortex I believe I'll lose the ability to close it.
I also looked at the Maxx air and I think it will totally work, but the price is eye watering right now. Thanks Covid...
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12-12-2020, 03:50 PM
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#12
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Senior Member
Join Date: Feb 2019
Location: Schertz
Posts: 1,020
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Quote:
Originally Posted by Sailor Mike
This is the fan in question, if you look at the open and close system, its 1/4 turn on the knob and the black doors open and close against the holes in the top piece. If I use an insert like the vortex I believe I'll lose the ability to close it.
I also looked at the Maxx air and I think it will totally work, but the price is eye watering right now. Thanks Covid...
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Correct, the MaxxAire 7500 was not cheap. But it comes with a neat remote control!!!!! 
__________________
2018 Ram 3500 CC Longhorn LB SRW w/timbrens
2019 Jayco Eagle 355MBQS
Pullrite 2600 Superlite
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12-13-2020, 07:59 AM
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#13
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Junior Member
Join Date: Dec 2020
Location: Mesa
Posts: 3
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12-13-2020, 08:40 AM
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#14
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Senior Member
Join Date: Feb 2019
Location: Schertz
Posts: 1,020
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Quote:
Originally Posted by Sailor Mike
This is the fan in question, if you look at the open and close system, its 1/4 turn on the knob and the black doors open and close against the holes in the top piece. If I use an insert like the vortex I believe I'll lose the ability to close it.
I also looked at the Maxx air and I think it will totally work, but the price is eye watering right now. Thanks Covid...
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If you replace it with a Vortex, you'll have to put a Camco like vent cover over it. I don't think Vortex comes with its' own cover. That entire fan you have will come out.
__________________
2018 Ram 3500 CC Longhorn LB SRW w/timbrens
2019 Jayco Eagle 355MBQS
Pullrite 2600 Superlite
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