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Old 09-27-2013, 02:48 PM   #1
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Lost 12v power

I have a friend up in Washington that has a 2003 Alpine mid door. He has lost all 12v in house. He can start engine & generator and still no 12V. He has looked for a reset button on his Xantrex 2000 Freedom inverter and does not fine one. Jacks, slides, water pump does not work. Any ideas out there?
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Old 09-27-2013, 03:43 PM   #2
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Quote:
Originally Posted by Alpine Road Warrior View Post
I have a friend up in Washington that has a 2003 Alpine mid door. He has lost all 12v in house. He can start engine & generator and still no 12V. He has looked for a reset button on his Xantrex 2000 Freedom inverter and does not fine one. Jacks, slides, water pump does not work. Any ideas out there?
Alpine Road Warrior
I would suspect the "salesman switch".

It could be bad/faulty .

However, the most common cause of the loss of all 12VDC house power is a "salesman switch" that has simply been inadvertently/accidentally turned OFF.

There are both solenoid and mechanical "salesmen switches"...(I don't know which type Alpine uses or where it might be located).

Mine is mechanical and located in my mid-door stairwell .....(it has been accidentally turned OFF far more times than the 4-5 times I have I have I have actually USED it)!

Mel
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Old 09-27-2013, 03:46 PM   #3
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Check the house disconnect switch & connections, & main battery ground connections from house batteries. I frequently find these are loose.
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Old 09-27-2013, 04:03 PM   #4
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As Mike said check the easy stuff first like the switch inside the entry door that turns the house 12v on and off. I often forget to turn this on when I get the coach out of storage.
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Old 09-27-2013, 09:27 PM   #5
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I would also check the main 12 volt 300 amp ground fuse.
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Old 09-28-2013, 11:54 AM   #6
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I thought they got rid of the ground fuse by 03?
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Old 09-28-2013, 12:46 PM   #7
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Mike you are correct but I would still look at the ground side of the electrical system for the problem. The ground side is the most over looked part in diagnosing electrical problems.
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Old 10-08-2013, 12:38 AM   #8
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FWIW-Most likely not the issue, but when checking the ground connections, there are 2-3 on the engine, held on with bolts. When I changed the alternator, found two of these to be a tad lose, over time with road vibration, they would have worked lose. It's a good idea to "check all electrical connections" that are easy to get too, once you have done it once, every other year or so is in order due to road vibration, etc.
Mine has master switches in the rear in the Battery compartment, so don't have the front switch mentioned above. Let us know what the issue is please.
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Old 10-08-2013, 06:25 PM   #9
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Thanks everyone for your replies. It was a battery ground cable.
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Old 10-08-2013, 06:30 PM   #10
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Thanks for the update.
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