C921 light and socket turns black - Dutchmen Owners

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Old 06-18-2013, 12:43 AM   #1
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C921 light and socket turns black

OK folks hope I can explain this one. I noticed I had a bulb had gone out. Not surprising on a new trailer as they often use cheaper light bulbs. But when I open the cover the light bulb of the C921 was 100% black if not a silver shine to it. But looking deeper the connection has black or burnt marks on it.

It appears that the small connector on the light fixture has the ability to be removed. With the help of a small tab. But I am not able to get removed.

I can post pictures if needed.



Any help here ???

Dan
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Old 06-18-2013, 12:57 AM   #2
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Pics included

Here pics of the light
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Old 06-18-2013, 01:54 AM   #3
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Looks like the plastic tab at the bottom holds it in there. You'll probably have to push the tab in to release the socket or pry the tab out. It's hard to tell from the picture but it shouldn't be too hard to get it out of there. Yhere may be some sort of attachment on the back of the fixture but you'll need to remove it to find out.

I'd think the hard part will be to find a replacement socket for that fixture. The socket shows extreme heat for some reason. Perhaps the lamp was loose in the socket or perhaps too much wattage from the lamp itself or perhaps the lamp was loose in the socket creating resistance that caused more than necessary at the lamp.
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Old 06-18-2013, 02:11 AM   #4
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Maybe the 2nd part of the question would be is ... If the light bulb, c921, was not installed correctly at the factory. Would this cause the bulb to prematurely burn out as it could cause this arcing?
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Old 06-18-2013, 03:42 AM   #5
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When you use this light is it tied in with something else to cause a greater current draw? That's what the bulb looks like. Just this past weekend I turned on a kitchen ceiling lamp on my Kodiak 242RESL and as soon as I did that a fan on the power supply started to turn. Switched the light off and the fan quit running. I now have a situation where that bulb is drawing more amps than it's supposed to. I know now that I'll have to contact Kodiak to see what would cause this. You may have a similar problem.
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Old 06-18-2013, 12:14 PM   #6
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Quote:
Originally Posted by kayakcrazy View Post
When you use this light is it tied in with something else to cause a greater current draw? That's what the bulb looks like. Just this past weekend I turned on a kitchen ceiling lamp on my Kodiak 242RESL and as soon as I did that a fan on the power supply started to turn. Switched the light off and the fan quit running. I now have a situation where that bulb is drawing more amps than it's supposed to. I know now that I'll have to contact Kodiak to see what would cause this. You may have a similar problem.
It sounds to me as if the cooling fan is doing what it's supposed to do, cool. When you turn on a light or add additional load to the system the power supply ( I think you mean converter), ramps up to provide power for the additional device. Because the power supply is working harder it is creating more heat and therefore the fan runs to protect itself.

A lamp, or bulb is rated in wattage and can only draw the amount of wattage that it is designed to draw. It's a resistive load so it doesn't work harder such as a motor or other inductive loads can do.

Some power suppy fans run continously whereas others turn on as needed. I doubt you have a problem and only are aware of the fan because you hear it turn on.
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Old 06-19-2013, 01:32 AM   #7
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You're absolutely right as that's what happened when I tested it today. This is our first power supply like this and it caught me off guard. After 35 years of RV'ing I still have a lot to learn.
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