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06-06-2021, 07:00 PM
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#1
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Montana Fan
Join Date: Apr 2019
Location: Long Isalnd
Posts: 150
M.O.C. #23929
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Rear marker lights
Just replaced both rear side marker lights on our 2019 Montana 391RD. Both were not working. When I removed the lenses, they were both rusted and completely destroyed. Funny thing is, none of the orange markers lights or the red markers along the rear roof line had the same issue. Anybody else experience this? BtW, I put a bead of silicon caulk along the top lenses seem to prevent any water infiltration in the future.
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06-08-2021, 09:33 PM
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#2
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Montana Master
Join Date: Jan 2016
Location: STAYTON
Posts: 1,118
M.O.C. #18157
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I removed ALL of the incandescent junk clearance lights and threw them in the closest receptacle. Bought LED replacement fixtures and spent an afternoon fixing a lifetime of future frustration. Amazed that they still put this crap on 100k 5th wheel trailers.
Mark
__________________
“Hard times create strong men, strong men create good times, good times create weak men, and weak men create hard times.”
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06-09-2021, 06:10 AM
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#3
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Montana Fan
Join Date: Apr 2019
Location: Long Isalnd
Posts: 150
M.O.C. #23929
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Quote:
Originally Posted by MARK A
I removed ALL of the incandescent junk clearance lights and threw them in the closest receptacle. Bought LED replacement fixtures and spent an afternoon fixing a lifetime of future frustration. Amazed that they still put this crap on 100k 5th wheel trailers.
Mark
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I guess I forgot to mention, The two light I replaced were LED. Both were out and completely corroded inside. I inspected all others and they were fine. Just weird that it was only those two light that were so corroded.
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06-09-2021, 08:24 AM
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#4
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Montana Master
Join Date: Jan 2016
Location: STAYTON
Posts: 1,118
M.O.C. #18157
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Quote:
Originally Posted by Scootsk
I guess I forgot to mention, The two light I replaced were LED. Both were out and completely corroded inside. I inspected all others and they were fine. Just weird that it was only those two light that were so corroded.
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Hmm. I also forgot to mention that my replacement lights aren't just LED bulbs, they're sealed.
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06-09-2021, 06:22 AM
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#5
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,894
M.O.C. #24086
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A while back Montana put out a Tech service bulletin to remove the rear LED lights foam rubber gasket between the LED lights and the rear wall. They then used silicone sealant around the LED light assembly to prevent water intrusion.
In my case they replaced both lights.
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06-09-2021, 08:48 AM
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#6
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Montana Master
Join Date: Dec 2009
Location: Sebring
Posts: 3,669
M.O.C. #9969
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I don't know about the LED markers, but some time back Keystone mounted both marker and scare light UpSide Down. There was a small drain hole/notch in the bottom of the lenses and the way they mounted them that drain hole was on top, thus allowing water to enter and corrode things.
The lenses were clearly marked show TOP, guess Keystone need to do a reading test with new employees.
__________________
Michelle & Ann
2018 Chevy 3500HD High Country DRW 4X4 Crew Cab w/Duramax/Allison, Formally 2010 Montana 2955RL, Now Loaded 2016 SOB, Mor/ryde IS, Disc Brakes & Pin Box, Comfort Ride Hitch, Sailun 17.5 Tires.
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06-09-2021, 11:26 AM
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#7
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Montana Fan
Join Date: Apr 2019
Location: Long Isalnd
Posts: 150
M.O.C. #23929
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Quote:
Originally Posted by mhs4771
I don't know about the LED markers, but some time back Keystone mounted both marker and scare light UpSide Down. There was a small drain hole/notch in the bottom of the lenses and the way they mounted them that drain hole was on top, thus allowing water to enter and corrode things.
The lenses were clearly marked show TOP, guess Keystone need to do a reading test with new employees.
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Wish I looked more carefully. Did even look for that. I do want to say the one light was mounted using the molded holes in the light, the other had one screw in the molded hole and one right through the light housing. When I saw it, I thought that maybe they stripped the other hole. Nope. Just the two holes made by the original install. There was another marker mounted the same way. Can’t figure out why they did it.
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06-14-2021, 09:58 AM
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#8
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Montana Fan
Join Date: Jan 2021
Location: Coloma, Wisconsin
Posts: 209
M.O.C. #28036
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IMHO - just lazy & poor craftsmanship.
__________________
Chuck
2019 3121RL 35 ft., 2020 3500 Dodge Ram SRW, Cummins 6.7 HO, Air Bags - Air Lift BT Wireless Compressor, Coloma, Wisconsin
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06-14-2021, 11:15 AM
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#9
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Montana Fan
Join Date: Jun 2019
Location: Summerville
Posts: 138
M.O.C. #24370
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Rear marker lights
As Daryle's mentioned Montana put out a service bulletin about replacing the rear gaskets with silicone
My lights were full of water and I had to remove the lens and dry everything then reinstall using silicone
This eliminated the issue
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06-14-2021, 02:18 PM
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#10
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Montana Fan
Join Date: Aug 2017
Location: Olmsted Falls
Posts: 245
M.O.C. #20364
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We have a 2017, guess I need to open them up this summer and check all my lighting for issues. The "to do" list just never seems to get any shorter. hahahahaha
__________________
Rick & Joyce Jones
RMC(SW) USN Ret.; AT&T Ret.
2024 3231CK, IS, 400W Solar, Slide covers, Predator Gen,, 2016 Chevy High Country 3500 Diesel Dually with Timbren SES
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