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Old 01-13-2020, 03:38 PM   #1
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Electrical Issues Hummingbird 17FD

After working fine for the first 2 plus years, I am now experiencing issues with the electrical system.

I pull the battery each time I leave the unit in storage. When I pick it up, I hook up the battery and the 12v system works fine. We tow it to wherever we are going, unhook from truck, set up, and the 12v system works fine. At some point I hook up the generator to run something off of that. Everything works fine. When I turn off the generator however, none of the 12v works at all. The battery level on the unit shows no charge even though the battery itself shows 12.6+ on a multimeter. All the fuses look good. I have not idea what to do next.
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Old 01-13-2020, 04:47 PM   #2
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Check the small 30 amp fuse near the battery. It's in a small black holder next to a junction box on the frame. It's not obvious and may take some looking.
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Old 01-14-2020, 12:05 PM   #3
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Originally Posted by Jim Davis View Post
Check the small 30 amp fuse near the battery. It's in a small black holder next to a junction box on the frame. It's not obvious and may take some looking.
Tried this one and that fuse at least looks intact. Is it possible for a fuse to be bad but not be visually broken?
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Old 01-14-2020, 01:48 PM   #4
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Originally Posted by Hoel51 View Post
Tried this one and that fuse at least looks intact. Is it possible for a fuse to be bad but not be visually broken?
Yes, a multimeter is your friend.

If you accidentally even for a quick moment crossed the hot and ground wires, you may have blown the fuse(s) in the fuse box for reverse polarity. I would check those 30 amp fuses too.
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