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Old 07-10-2015, 10:31 AM   #1
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12V Lighting Problem

I have 3 flurescent lights in my 06 ambassador living area, when I switch them only 2 will light correctly, the 3rd comes on dull. This happens using either the bedroom switch or the doorside switch. If I use the local switch on one of the correctly lit fixtures the bad one will light up, then I switch the bad one on again and it too will light up. Anybody have a suggestion on what is causing this please ?
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Old 07-10-2015, 10:38 AM   #2
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I think, the ballast or bulbs are about to fail. They need highvoltage to start, when they all start at once there is a dip in volatge.

Trying switching the bulbs to a diff fixture, see if the prob moves with it.

L.
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Old 07-10-2015, 10:50 AM   #3
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I modified mine to be LED pretty simple and cheap. SuperbrightLED.com . I used https://www.superbrightleds.com/more...p-leds/98/476/ and cut them in half. Get the small wiring plug for them. I think I was into each fixture about $12 for the 12" fixture.

I gutted the fixture housing, attached the LED strip with 3M body panel take (any super sticker tape with a bit of foam type property would work). Make sure to properly insulate the back of the LED strip where the solder joint are. They are kind of pokey and shorted on the housing on my first attempt.

Got the idea here https://www.superbrightleds.com/blog...LED-Operations
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Old 07-10-2015, 11:08 AM   #4
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Quote:
Originally Posted by toolster View Post
I have 3 flurescent lights in my 06 ambassador living area, when I switch them only 2 will light correctly, the 3rd comes on dull. This happens using either the bedroom switch or the doorside switch. If I use the local switch on one of the correctly lit fixtures the bad one will light up, then I switch the bad one on again and it too will light up. Anybody have a suggestion on what is causing this please ?
You don`t have a problem -- The third light is not getting the voltage that the other two are -- Three flurescent lights are to much for a single circuit -- Do what a previous poster suggested, & switch them to LED`s -- Bill Willard
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Old 07-10-2015, 12:13 PM   #5
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I disagree with Bill. Each thin lite fixture draws only1.4 amp of 12v. Ballast or bulb is the culprit.
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Old 07-10-2015, 12:53 PM   #6
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My coach has 5 in a circuit, they work fine. My guess is his 3 worked fine before this problem began.

Agreed, you can go LED, but if a simple fix is what you need/want, test the bulbs my moving them and see if it is them or the ballast.

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Old 07-10-2015, 01:17 PM   #7
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I don`t know anything about amps, ohms or such -- I was speaking from experince -- We purchased our coach new & had that light problem from the start as did my brother-in-law, who purchased a 05 Endeavor new -- If any of you are in my area, & need 12v tubes & guts from thin lites, I have a big drawer full of them, & they`re FREE -- Bill Willard
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Old 07-10-2015, 05:19 PM   #8
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Step one is re-seat the lamp.. Of course it might be a bad bulb.
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Old 07-10-2015, 05:33 PM   #9
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If the bulb is blackened on the end, it is probably a bad or marginal bulb. However, it is usually the electronic ballast module going bad.

Many people take the opportunity to upgrade the fixture to LED. There are upgrade kits or a new fixture.


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Old 07-11-2015, 05:09 AM   #10
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Thanks to all for the help, I am upgrading to LED
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