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10-09-2023, 08:10 PM
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#1
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Established Member
Join Date: Dec 2020
Location: Chaska
Posts: 11
M.O.C. #27739
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LED Lights Dim - some not all
I have a 2018 3731FL Montana. The light above the stove suddenly went dim. Purchased and installed replacement light...same issue DIM light. Took the same replacement light and installed it in the living room and it is as bright as it can be. Now a month later, both of the reading lights above the bed are now dim. All of the other ceiling lights in the camper work fine. Just these 3 light have the issue. I hope someone has already figured out the solution for this.
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10-10-2023, 07:38 AM
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#2
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Montana Master
Join Date: Dec 2021
Location: Northeast TX
Posts: 974
M.O.C. #30262
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I would be looking for a loose or corroded ground / loose crimp connection on that circuit. Hopefully others will chime in as well
__________________
Lee, Edith, Lil' Bit & Cuddles
22 MHC 331RL, Surge Guard 35550, SumoSprings, Kodiak disc brakes, 412Ah Lithium, Gen 3 Goosebox, Sailun 85s
22 Ram 3500 CC DRW 6.7 CTD Herrin Hauler Classic Bed, 45 gal AUX tank
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10-10-2023, 08:18 AM
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#3
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,382
M.O.C. #30417
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As Lee said. The 12 volt lights run directly off the batteries. I would start by checking the state of charge of the batteries with a load tester. Check to see if they are getting a charge from the converter, if plugged in. Check all visible connections for tightness and corrosion.
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Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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10-10-2023, 10:00 AM
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#4
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Established Member
Join Date: Dec 2020
Location: Chaska
Posts: 11
M.O.C. #27739
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Quote:
Originally Posted by Foldbak
As Lee said. The 12 volt lights run directly off the batteries. I would start by checking the state of charge of the batteries with a load tester. Check to see if they are getting a charge from the converter, if plugged in. Check all visible connections for tightness and corrosion.
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Wouldn't that affect all my 12v lights? Not just the three that are DIM.
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10-10-2023, 10:20 AM
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#5
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,245
M.O.C. #6433
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I would use a voltmeter and check the voltage to the light socket. First with meter ground lead touched to the light socket ground pin. Then again using a length of wire to your ground lead and touch that to the ground buss bar or a good frame connection.
If the voltage using the socket ground is less than the voltage using the buss bar connection then you likely have a ground problem. If the voltage both ways is less than 12 volts then you likely have a wire or connection issue on the 12 volt wire.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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10-10-2023, 11:07 AM
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#6
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,245
M.O.C. #6433
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While you are troubleshooting, kill all power, open your power distribution panel, and check the tightness of all hot, neutral, 12 volt, and ground connections. When still relatively new I found a lot of wire connection screws barely tight. Your problem could be there.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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10-10-2023, 03:58 PM
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#7
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Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,382
M.O.C. #30417
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Quote:
Originally Posted by Martin the Cat
Wouldn't that affect all my 12v lights? Not just the three that are DIM.
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Yes it would. I didn't catch that. It have to be an isolated connection for that circuit.
__________________
Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, Solar Flex 400, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
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