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Old 05-07-2013, 04:34 PM   #1
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12V power loss

When I disconnect from shore power I loose 12V power. After a short period it comes back on. Is something to hot, or converter problem?

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Old 05-07-2013, 04:43 PM   #2
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Location: Litchfield Park, Arizona
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Hi and welcome to the forum.

It's a good idea to add the type, make, model, and year of your RV in your signature line so folks will know what kind of RV we're talking about.

I'm not sure about your 12v problem but some of our experts will be along soon to help out.

Best of luck.


Rick, Nancy, Peanut & Lola our Westie Dogs & Bailey the Sheltie.

2007 Itasca Ellipse 40FD
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Old 05-07-2013, 05:04 PM   #3
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Very strange. Like Rick said, what type of unit this is I'm sure will matter, but no matter what, no unit should ever really do that.
Once you D/C from shore power, the converter will quit putting out and then the power will come from the battery as opposed to the battery being charged. It's just electricity flowing from high power to lower power.
Possibly, there is a circuit breaker that is being tripped constantly while on shore power, and once the shore power is gone & the cnvrtr stops feeding power, the circuit breaker isn't needing to be tripped, and can reset and stay set.
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Old 05-07-2013, 05:49 PM   #4
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MH is 2007 National Dolphin 37' model 5355 on Workhorse chassis.
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Old 05-08-2013, 08:53 AM   #5
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It sounds like it could be a problem with the Battery Control center BCC under the hood on the drivers side. It could be labeled "Custom RV Products" Get the model number and contact them. They can send you a wiring diagram and a description of how it works. Then troubleshoot from there.
06 Hurricane 34FT WH W20 Chassis 8.1L 132K, Steersafe, Koni Shocks, DIY Trac Bar, Tri-Metric 2025RV Battery Monitor, 4-6V Batteries, Scan Gauge 2, Crossfires, 735W Solar Morningstar MPPT-60, WG T4 In-Motion Sat, XM Radio, 07 Chevy Malibu Maxx Toad, Falcon 2, Brake Buddy, Escapee
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