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Old 07-09-2013, 12:54 AM   #1
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12 volt power interuption.

,The other morning while we were having breakfast, the 12 volt power went off. There was no noise or indication of anything happening. I will admit that I might have cursed a bit but put off chasing the problem until I finished breakfast. Before I could seethe too long, the 12 volts came back. Almost as if there was a thermal breaker somewhere in the system. Today when we stopped for fuel, the same thing happened again. Is there, indeed, some sort of thermal breaker or switch in the system? This is a 1999 Winnebago Adventurer 34V.

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Old 07-09-2013, 03:16 AM   #2
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Make sure that you indeed have the house "Aux" battery disconnect turned on. Then I would recommend you clean ground connections on the frame and both cable connections on battery bank. I do not think Winnebago has a thermal breaker in the system; only fuses and resettable circuit breakers. Good luck and keep us posted.
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Old 07-09-2013, 06:02 AM   #3
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There may be a thermal breaker, also what converter do you have (or inverter if that's what you have)
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Old 07-10-2013, 10:17 AM   #4
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Are you sure that shore power did not also go off for that few minutes? If all your 12v is coming from the converter/charger, you would lose it when shore power fails and your house batteries are also dead. It's easy to check this - just go out and turn off the breaker on the power pedestal and see what happens to your 12v.
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Old 07-10-2013, 01:24 PM   #5
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The same thing happened to me it was a loose ground off the chassis battery which was bolted to the frame.
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