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09-27-2013, 01:48 PM
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#1
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Senior Member
Join Date: Jul 2008
Location: Yuma, Arizona & Eagle Point, OR
Posts: 123
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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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2008 Alpine 40FDQS Limited SE
2006 Jeep Wrangler Unlimited 2D 4X4
2014 Buick Enclave
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09-27-2013, 02:43 PM
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#2
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Registered User
Join Date: Mar 2010
Posts: 8,777
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Quote:
Originally Posted by Alpine Road Warrior
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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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
'96 Safari, 132k miles, (105k mine)
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09-27-2013, 02:46 PM
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#3
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Senior Member
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,385
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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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Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
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09-27-2013, 03:03 PM
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#4
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Senior Member
Join Date: Nov 2007
Location: Charleston, WV
Posts: 3,469
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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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John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
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09-27-2013, 08:27 PM
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#5
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Senior Member
Alpine Owners Club
Join Date: Jun 2003
Location: Ontario, CA USA
Posts: 1,403
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I would also check the main 12 volt 300 amp ground fuse.
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09-28-2013, 10:54 AM
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#6
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Senior Member
Join Date: May 2004
Location: Auburn, CA, Havasu, AZ & Mulege, BCS
Posts: 5,385
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I thought they got rid of the ground fuse by 03?
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Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
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09-28-2013, 11:46 AM
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#7
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Senior Member
Alpine Owners Club
Join Date: Jun 2003
Location: Ontario, CA USA
Posts: 1,403
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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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10-07-2013, 11:38 PM
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#8
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Registered User
Newmar Owners Club
Join Date: Nov 2008
Posts: 2,899
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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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10-08-2013, 05:25 PM
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#9
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Senior Member
Join Date: Jul 2008
Location: Yuma, Arizona & Eagle Point, OR
Posts: 123
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Thanks everyone for your replies. It was a battery ground cable.
__________________
2008 Alpine 40FDQS Limited SE
2006 Jeep Wrangler Unlimited 2D 4X4
2014 Buick Enclave
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10-08-2013, 05:30 PM
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#10
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Community Administrator
Join Date: Aug 2009
Posts: 53,561
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Thanks for the update.
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Cliff,Tallulah and Buddy ( 1999-2012 )
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