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12-02-2011, 05:47 PM
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#1
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Junior Member
Name: Bill
Trailer: Scamp 16
Washington
Posts: 23
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converter question
Hi,
I just purchased a Scamp 16. It has a Centurion 3000 converter. I'm assuming that the lights, water pump, etc. are 12-volt but they only work when the trailer is plugged into shore power. I know the battery is reasonably charged because the electric tongue jack works fine. Is it normal that you would have to be plugged in to have 12-volt power? I would think not because if so why would you have a battery?
Thanks.
Bill
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12-02-2011, 05:57 PM
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#2
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Senior Member
Trailer: Scamp
Posts: 7,056
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There's a fuse under the front couch on the curb side. Check that fuse. The lights and all should work off the without being plugged in.
__________________
Byron & Anne enjoying the everyday Saturday thing.
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12-02-2011, 06:03 PM
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#3
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Senior Member
Trailer: 2004 13 ft Scamp Custom Deluxe
Posts: 8,520
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Quote:
Originally Posted by wjquigs
Hi,
I just purchased a Scamp 16. It has a Centurion 3000 converter. I'm assuming that the lights, water pump, etc. are 12-volt but they only work when the trailer is plugged into shore power. I know the battery is reasonably charged because the electric tongue jack works fine. Is it normal that you would have to be plugged in to have 12-volt power? I would think not because if so why would you have a battery?
Thanks.
Bill
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What year and model is your Scamp?
Did you just change the battery?
On many Scamps there is a fuse in a holder just inside the bulkhead in the starboard side front, just inside where the wiring enters the trailer.
Some of the newer ones have the main battery fuse on the fuse panel(usually position #1)
Some have both.
Some have a fuse in the battery box.
On a stock Scamp the 12V house power at the battery uses BLACK for positive and white for negative... Check the polarity.
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12-02-2011, 09:15 PM
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#4
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Junior Member
Name: Bill
Trailer: Scamp 16
Washington
Posts: 23
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Thanks for all the responses. It is a 2002 deluxe front bath. I will check the closet next to the bath for a fuse, and the battery box.
Bill
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12-05-2011, 04:05 PM
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#5
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Senior Member
Trailer: 74 Boler 13 ft / 97 Ford Aerostar
Posts: 368
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Also, that converter was often used in pop up trailers with a pressure switch to shut off the 12V when the trailer was down. You might check to see if that point in the circuit where the switch would be is cutting off the 12V side.
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12-05-2011, 04:12 PM
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#6
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Junior Member
Name: Bill
Trailer: Scamp 16
Washington
Posts: 23
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I found a couple of blown fuses in the circuit. Now everything works except the Fantastic Fan, which I'm assuming is supposed to run on 12 volts, so I'll keep checking that circuit.
I'm surprised that there is no master battery on/off switch, like on a boat. So it's possible to inadvertently leave a light on and come back to a dead battery.
Bill
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12-05-2011, 04:37 PM
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#7
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Senior Member
Trailer: 2004 13 ft Scamp Custom Deluxe
Posts: 8,520
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Quote:
Originally Posted by wjquigs
I found a couple of blown fuses in the circuit. Now everything works except the Fantastic Fan, which I'm assuming is supposed to run on 12 volts, so I'll keep checking that circuit.
I'm surprised that there is no master battery on/off switch, like on a boat. So it's possible to inadvertently leave a light on and come back to a dead battery.
Bill
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My fantastic fan as well as a dozen or so others that I have installed, has a "little fuse" (glass cylinder fuse) in the fan housing. It looks like a black knob. Press in slightly and turn it counter clockwise a quarter turn or so to remove it.
It is wired to the fuse panel as well.
Regards;Floyd
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12-07-2011, 12:01 AM
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#8
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Junior Member
Name: Bill
Trailer: Scamp 16
Washington
Posts: 23
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What does converter actually do?
All this discussion raises a basic question: how is a converter different from a battery charger? My boat has a similar electrical system to the Scamp, but no converter. When it's sitting in the driveway and the charger is plugged into the house, presumably all of the 12 volt lights are running off the charger as much as the battery. Does a converter just have more capacity (amps) than a charger? Our does it shut out the battery completely when plugged in?
Thanks.
Bill
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12-07-2011, 12:13 AM
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#9
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Junior Member
Name: Bill
Trailer: Scamp 16
Washington
Posts: 23
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So I just noticed a bunch of older threads on converters, linked to the bottom of my post, which answered my question. Nice!
Bill
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12-07-2011, 11:11 PM
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#10
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Senior Member
Name: Ron
Trailer: 2008 13' Scamp
British Columbia
Posts: 325
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Quote:
Originally Posted by wjquigs
I found a couple of blown fuses in the circuit. Now everything works except the Fantastic Fan, which I'm assuming is supposed to run on 12 volts, so I'll keep checking that circuit.
I'm surprised that there is no master battery on/off switch, like on a boat. So it's possible to inadvertently leave a light on and come back to a dead battery.
Bill
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That's one of the first things I noticed and it's on my to-do list. Install a voltmeter and master switch as close to the battery as possible. I was really surprised that the "porch light" has an external switch. Even if you don't accidently go away and leave a light on someone else could flip the external switch and drain the battery if you're away for any length of time..
As you say, boats have battery switches and I like to know that when I exit that the batteries are off and also, if there's a problem, that I can instantly disconnect the battery.
Ron
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12-07-2011, 11:28 PM
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#11
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Senior Member
Trailer: Scamp
Posts: 7,056
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Caution caution
When you disconnect the battery in some manner you probably turn off the propane detector. If there's a propane leak any spark could result in a loud noise.
If you really really feel the need to disconnect the battery do it so that the battery switch is outside the trailer. When turning it on wait for a couple minutes before entering the trailer to allow the propane detector to start up.
This may seem like overkill, but one time is all it takes to turn and egg into a bomb.
__________________
Byron & Anne enjoying the everyday Saturday thing.
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