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Old 07-09-2024, 06:42 PM   #1
Tyler2011
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M.O.C. #34552
Interior ambient lighting/trim lighting

Hello, I have a 2016 Montana 3721RL, it has the ambient lighting along the cieling trim that has always been nice to keep on for a little bit of light in the evening. I pulled the Monty out of storage after about 9 months and now they do not come on… the switch lights up on the control panel but none of the led strips come on. Curious if anyone has had this problem before or can point me to a fuse or something to check? It’s a pain to test since you have to pull the trim off to get at them. Everything else in the rig seems to be working perfectly. Weird that both sides would go out so I’m thinking it has to be a fuse or something with wiring? Any help is appreciated!
 
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Old 07-10-2024, 02:22 AM   #2
RMcNeal
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There may be a blown fuse in the power center where the breakers and fuses and the converter are located.
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Old 07-10-2024, 02:54 AM   #3
Tyler2011
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Any chance you know which one it would be? They all seem to be good but I can try swapping some around, or if there’s other things that run the same fuse I can rule it out if the other things are working. So far all other lights work, outside and in.
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Old 07-10-2024, 03:17 AM   #4
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Sorry, I do not. My coach is in Elkhart being repaired by Keystone so I don't have access to look. It's unlikely ours would be the same anyway as there is no standard wiring diagrams to follow.
I do also remember there is an inline fuse or two behind the switch panel. Maybe check there? I agree it is odd that both sides would fail at the same time, so power must be getting interrupted somewhere.
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Old 07-10-2024, 04:40 AM   #5
Mikendebbie
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Tyler - I believe you may have first generation of InCommand called “Pro”. My unit has 2nd gen ProPlus. Screen shot below is from the owners manual for a Pro. The BCM is located on the basement wall. Take the cover and the plastic protector off. You will find circuits on the left labeled Light Group 1 and 2. Unplug all 3 of those relays (yellow highlight) and plug them into different receptacles. ALL of those relays on the board are the same…you can swap out any of them if the first swap does not change the status. I think they are available on Amazon for maybe $15 or so if you want to try a new one.

My unit had same flicker problem with crown mold lighting. It had been sitting at the S&B for several months during covid shutdown. I swapped the relays and problem was cured.
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Old 07-10-2024, 11:27 AM   #6
Tyler2011
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Thanks that’s super helpful! I still have the older model with all of the manual switches, no digital I command system. But I would assume if I take off that panel there still is a similar relay setup behind it. I’ll try that tonight! Thank you
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Old 07-10-2024, 06:12 PM   #7
rohrmann
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M.O.C. #12947
If you just have switches, you will not have relays in that panel.
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Old 07-10-2024, 07:03 PM   #8
Tyler2011
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Do you know if there is a fuse or anything that would directly relate that switch to the ambient trim lighting on the manual switch style panel? Switch lights up so it must be between that and the lighting
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Old 07-10-2024, 07:33 PM   #9
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Tyler,

You could pull the switch panel and check that you are actually getting voltage across the switch.
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