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Old 11-26-2004, 04:22 AM   #1
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Lightbulb Exterior Light???

No manual so please excuse this question if it too obvious. THere is a round light on the rear of my '75 Tradewind about 3/4" in dia. When I am plugged into shore power it illuminates? should it???
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Old 11-26-2004, 04:28 AM   #2
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If it is anywhere near the breaker box, I would say NO.

Most, if not all Airstreams have a power polarity light. If it illuminates, it means the receptacle your shore power line is plugged into is wired incorrectly.

Can you post a picture of the light?

Tom
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Old 11-26-2004, 04:53 AM   #3
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Lightbulb Exterior Light

Quote:
Originally Posted by tcwilliams
If it is anywhere near the breaker box, I would say NO.

Most, if not all Airstreams have a power polarity light. If it illuminates, it means the receptacle your shore power line is plugged into is wired incorrectly.

Can you post a picture of the light?

Tom
My fisrt thought it is a ground problem. I am replacing a section of the floor where the wire runs for this So I will be checking that soon. Cold out there this AM!
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Old 11-26-2004, 09:25 AM   #4
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Exterior Light???

Greetings balrgn!

Quote:
Originally Posted by balrgn
My fisrt thought it is a ground problem. I am replacing a section of the floor where the wire runs for this So I will be checking that soon. Cold out there this AM!
Your photo is definitely of a Polarity Light. When I have had problems with this light illuminating it has typically been when the outlet being utilized wasn't wired properly, but in one instance with a coach that had recently been acquired it was the replacement plug-end on the trailer cord that was causing the problem - - the technician who repaired the wiring on my coach also indicated that he had seen instances where a replacement power supply cord had been wired into the coach incorrectly and caused the light to illuminate as well.

As a double-check for the Polarity Light, I now carry outlet testers in each of my coaches that will identify outlets with problems.

Good luck with your investigation!

Kevin
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Old 11-26-2004, 09:29 AM   #5
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My trailer doesn't have one. Sad.

Is there a schematic for this, and can I build one?
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Old 11-26-2004, 09:39 AM   #6
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Quote:
Originally Posted by markdoane
My trailer doesn't have one. Sad.

Is there a schematic for this, and can I build one?

Mine was on the top of the fuse box. You could look though the cargo access and see it.

I too am interestd in how to wire one up for the outside that is easier to see. The original fuse box was only two circuits and I plan to replace it with a box with more circuits so I can isolate lighting from outlets and add a A/C circuit.
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Old 11-26-2004, 10:08 AM   #7
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Quote:
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The original fuse box was only two circuits and I plan to replace it with a box with more circuits so I can isolate lighting from outlets and add a A/C circuit.
Eric,

I wondered what that light was for. I guess I can take the wiring and ? out of the old box and use that.

What are you planning for wiring? I was going to put in a 12 space 50a panel for the 120/240, and a 12 fuse DC panel. I know there are some combined units available, but haven't checked prices.

I'm using aluminum armored cable for the 120 vac, to avoid having to put in lots of grommets.
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Old 11-26-2004, 10:13 AM   #8
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A polarity light is a 110VAC lamp that is wired to the natural and ground. If the outlet is wired correct that it is plugged into, the lamp will not light. IF the hot and neutral are reversed it will light.
When I get to the wiring of my trailer I will put in a polarity light also.
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Old 11-26-2004, 11:32 AM   #9
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Thanks Tedd,

Pretty obvious, now that I think about it.
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Old 11-26-2004, 12:45 PM   #10
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Quote:
Originally Posted by markdoane
...I was going to put in a 12 space 50a panel for the 120/240, and a 12 fuse DC panel...
Don,

Out of curiosity, why a 50 amp panel? Is it just to run a microwave & air conditioner simultaneously?

Tom
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Old 11-26-2004, 02:59 PM   #11
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Lightbulb Exterior Light

Quote:
Originally Posted by tcwilliams
Don,

Out of curiosity, why a 50 amp panel? Is it just to run a microwave & air conditioner simultaneously?

Tom
I'll let anyone know how it is wired when I get that part of the project completed. Looks pretty simple. The wiring need some attention.

At this point I am tearing out my rear bath. Found water damage behind the shower and along the rear wall. I have a website where I post my progress if anyone is interested.
http://home.comcast.net/~balrgn/Airs...oject_2004.htm
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Old 11-26-2004, 03:32 PM   #12
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Quote:
Originally Posted by tcwilliams
Don,

Out of curiosity, why a 50 amp panel? Is it just to run a microwave & air conditioner simultaneously?

Tom
Plans are for A/C, microwave, inverter/charger, hair dryer (wife says a must), supplemental space heater, hot rod water heater, refrigerator . . . .

It adds up pretty quick. I don't plan to put in all this stuff, but while the walls are out I want to put in wiring for all the current and future options. I figure it's cheaper to do it once.
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Old 11-26-2004, 05:05 PM   #13
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Don,

That is the problem with it, it looks too easy. The first thing I was taught as a maintenance tech was... "Is it pluged in..."
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Old 11-26-2004, 05:06 PM   #14
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Don you have the right idea wiring it all up for whatever you decide to add and I'ld over size all wire one size. How about 12v to the step for future electric step, exterior AC outlets (lots of uses), 12volt wire to front and back underside for electric jacks and mood lights, backup lights low under the rear bumper, and wire to the rear of trailer above the rear window for power and coaxial and composite RCV for that camera you may want someday for going down the road and seeing behind you with one of these http://www.pioneerelectronics.com/pn...424985,00.html. Dont forget the coaxial to the sleeping lounge for future TV, and Cat 5 for the Laptop to plug into your onboard network (unless you're wireless). I almost missed that one myself.

And wire the travel lights so you can turn them on at the campground to find your trailer after happy hour. Alittle extra now will go a long way later. I am doing the electric step for sure. I don't have one at all and the d... thing on the other AS tries to get me everytime I let it out.

I love to wire.

As for the polarity, always check the power supply "before" you plug in. One of those standards most of us don't bother with after a long drive.
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