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Old 08-07-2009, 04:16 PM   #15
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Originally Posted by nate3172 View Post
Does your air conditioner work?
Unfortunately, there is no A/C...I'm not sure it ever came with one..but that is a possibility for the errant wire.

thanks
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Old 08-07-2009, 04:29 PM   #16
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That extra wire probably goes to where the a/c would be installed up on the roof.

The open ground on the outside outlet is worrysome. Do you have any idea where the wiring comes from? Is there a GFCI outlet, perhaps in the bathroom, that feeds the outside outlet? Anyway, the open ground might be on the other end of the wire - for example on the next outlet upstream from the outside one, or in the juction box of the next upstream outlet. Let's hope it on the other end of the wire, and not the wire itself being broken somewhere inside the wall...

Chris
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Old 08-07-2009, 05:13 PM   #17
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Yes,
As others say, the ground is not complete somewhere.
Check all the way back to house.
Extension cords are most common problem.

And yes you can feel 12 volts!!!!
Ask any mariner that works on boats around salt water.
It feels more as acid eating at you than a shock.
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Old 08-07-2009, 06:00 PM   #18
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Poor ground hunting

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Originally Posted by klattu View Post
Yes,
As others say, the ground is not complete somewhere.
Check all the way back to house.
Extension cords are most common problem.
Just checked the ground of the extension cord....all good thus far.

I'll keeping looking.

ANy idea on why the volts to ground increases for each breaker I open?
Does this mean that each of the 3 circuits has its own short...or does it maybe provide a clue that the short is back at some common junction - say the univolt?
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Old 08-07-2009, 06:56 PM   #19
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Consider this possibility. If all your internal outlets test fine but the one on the outside does not than meybe the sockets inside that outlet are corroded enough that the tester does not make good contact with the ground socket. It is an outside plug that is essentially sealed with a cover but that does not necessarily mean that it has not been exposed and sealed well enough. Maybe the outlet itself is bad. Also, as a parent myself I have a tendancy to take what my kids say for there word, but a childs imagination can sometimes play a factor. Another possibility is that the shore power you were plugged into while your daughter experienced this had the problem and not your trailer. I highly doubt the univolt would be creating the issue because it is screwed down to a wood floor isn't it? Well, at least mine is so it is insulated from the exterior shell.
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Old 08-07-2009, 07:06 PM   #20
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Oh yeah, klattu, she isn't standing in salt water and it's not the voltage they feel it's the amperage. Not trying to be smug or anything but a leaking d/c system will not just trickle low current through the shell if the positive wire is touching it. It would be a direct short and blow a fuse or melt the wire.
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Old 08-07-2009, 08:18 PM   #21
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Still hunting

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Consider this possibility. If all your internal outlets test fine but the one on the outside does not than meybe the sockets inside that outlet are corroded enough that the tester does not make good contact with the ground socket. It is an outside plug that is essentially sealed with a cover but that does not necessarily mean that it has not been exposed and sealed well enough. Maybe the outlet itself is bad. Also, as a parent myself I have a tendancy to take what my kids say for there word, but a childs imagination can sometimes play a factor. Another possibility is that the shore power you were plugged into while your daughter experienced this had the problem and not your trailer. I highly doubt the univolt would be creating the issue because it is screwed down to a wood floor isn't it? Well, at least mine is so it is insulated from the exterior shell.
Good point. I removed it and will replace wth a GFI tomorrow. In the meantime I remembered there is another receptacle underneath the 3 way fridge which no longer works. I checked it and it too has the open ground. Perhaps it is on the same circuit.
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Old 08-07-2009, 08:22 PM   #22
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Call the voltage police!
Notice I said mariner, not Airstreamer.
And I have felt it, volts, amps, ohms... electrons I should have said.
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Old 08-07-2009, 08:37 PM   #23
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It's not a big job to install a GFCI main breaker, between the shore cord, and the breaker box.
It mounts in its own little box, and then you know that no matter what happens, you are protected.

Working in the marine field, we must be extra carefull with electricity, and have many times used a GFCI outlet, as a "feed thru" device, between line, and load.

But, a GFCI main breaker covers the whole AC wiring network.
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