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Old 09-25-2013, 12:23 PM   #1
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no 12 volt power

hello folks,i have a 2007 rockwood freedom popup trailer.if i plug into 120 volt everything works.when i try the 12 volt system,no lights,no furnance,no power period.now a strange thing thats occuring is,the wires that connect to the battery,a black+pos,and a white wire-neg.when both wires are connected,i have no power,below the fuse.when i disconnect the white wire,i have power on the black+wire,when checking it below the fuse.whats up with that?i cleaned all the grounds on the frame.sounds like a short?also,when i connected the white wire to thetrailer frame,,its sparking pretty good.please help me.thnx marcus
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Old 09-25-2013, 03:13 PM   #2
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If you don't already own a multi-meter, now is probably a good time to buy one.

My guess is that there is more than one path from the battery into your RV, that fuse being one of them. I think the fuse is open (or if it's actually a circuit breaker, it needs to be reset.)

The other possibility is that the battery voltage is too low. You need to tell us what the voltage reading is on it.
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Old 09-25-2013, 03:49 PM   #3
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hello folks,i have a 2007 rockwood freedom popup trailer.if i plug into 120 volt everything works.when i try the 12 volt system,no lights,no furnance,no power period.now a strange thing thats occuring is,the wires that connect to the battery,a black+pos,and a white wire-neg.when both wires are connected,i have no power,below the fuse.when i disconnect the white wire,i have power on the black+wire,when checking it below the fuse.whats up with that?i cleaned all the grounds on the frame.sounds like a short?also,when i connected the white wire to thetrailer frame,,its sparking pretty good.please help me.thnx marcus

Are you 100% sure that you have the positive and negitive wires in the right place. Follow the wires back to the framing underside. Which wire is connected to the frame and which wire is connected to a terminal? To the frame = ground, - negative. Now look on the batt for the + and - posts.
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Old 09-25-2013, 03:51 PM   #4
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thnx guys,i will check and get back to you.
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Old 09-28-2013, 02:24 PM   #5
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hey guys,finally found theculprit.it was a blown fuse behind the converter,thnx for your help.marcus
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Old 09-28-2013, 03:12 PM   #6
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hey guys,finally found theculprit.it was a blown fuse behind the converter,thnx for your help.marcus
Ah !!!! another happy FORUM MEMBER. I just think this forum is the best.....
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Old 09-28-2013, 04:49 PM   #7
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Ah !!!! another happy FORUM MEMBER. I just think this forum is the best.....
i second that guy.
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Old 09-28-2013, 10:41 PM   #8
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hey guys,finally found theculprit.it was a blown fuse behind the converter,thnx for your help.marcus
why was the fuse blown?
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Old 09-29-2013, 06:28 AM   #9
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why was the fuse blown?
i crossed the battery wires.my fault.not often you see a black positive wire.
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