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Old 08-01-2020, 07:54 AM   #1
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Are the lights and water pump in the camper supposed to be able to work when on 12 volt battery power? If so, what would cause them not to? Did some plumbing and wanted to check for leaks. Not able to hook up to electricity where it is stored.

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Old 08-01-2020, 08:00 AM   #2
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yes they are supposed to work from battery power.

possible reason why they would not are:
battery is dead
battery is disconnected
battery shut off switch has them disconnected
resetable circuit breaker in battery cable has tripped
fuses are blow (but i would not think this is the case as the water pump and lights should be on seperate fuses)

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Old 08-01-2020, 08:23 AM   #3
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I think I found the problem.Click image for larger version

Name:	IMG_20200801_092115034.jpeg
Views:	7
Size:	86.5 KB
ID:	295329
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Old 08-05-2020, 08:45 PM   #4
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Old 08-06-2020, 03:46 AM   #5
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If they were side by side, they could be reverse polarity fuses.
They blow when the battery cables are backwards, check them.
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Old 08-06-2020, 06:51 AM   #6
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Originally Posted by jimq114 View Post
I think I found the problem.Attachment 295329
Those are 20A fuses. Something is wrong somewhere.
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Old 08-07-2020, 06:15 AM   #7
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Actually they are 30amp. The camera on my phone made them look yellow. They are green.

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