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Old 06-14-2010, 08:56 PM   #15
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Another thought after reading the long thread. Does when my tripping started help me figure it out?
Everything has been going great for months. Saturday I was running the AC and stereo pretty load while I was doing some sealing outside then ... trip.
Also the AC is brand new.
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Old 06-14-2010, 09:37 PM   #16
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I found the breaker with the problem. It is the center breaker which runs the AC and some outlets in the kitchen. So since the AC was just installed and nothing else is plugged in the outlets, can I assume it is the AC? Thanks for the help!
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Old 06-15-2010, 03:18 PM   #17
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That would be my bet.

They may have tied the neutral and ground together at the AC or if they ran new wiring you might look in the breaker panel to see if they put the ground (copper wire) in he same terminal block as the neutral wires. They must be separate in an RV.
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Old 06-15-2010, 03:31 PM   #18
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If the GFI trips when all the beakers are off the problem is before the panel and most likely in the umbilical cord itself. If you have had a lot of rain and an older cord the cord may be wet inside.

If you have used this system for a year or so and changed nothing in the house electrical supply to the receptacle and nothing in the trailer I would look at the cord for cracks in the outer skin.

If you were able to run the AC for more than a second it is not in the AC.
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Old 06-15-2010, 05:31 PM   #19
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Post #8 Jammer is the way I am heading. To review:
Trips when all CB are off, however, when I disconnect the ground on the middle CB and turn all the others on, it does not trip.
The middle CB controls the AC/Micro and some outlets in the kitchen area. And since the AC was just installed I thinking it became ungrounded.
It all was working fine until midday on Saturday. Just in case I have put in a new plug and new outlet, but because of the above I gues they were not a problem.
Is there a test on the AC and/or the outlets to find which one is the problem.
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Old 06-15-2010, 05:48 PM   #20
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...Is there a test on the AC and/or the outlets to find which one is the problem.
remove the inner shroud or vent filters and locate the AC juice/junction box.

check the 3 wires and screws and so on INSIDE that box.

do this while UNplug-ed.

this was the location of da short on my unit, as noted in the other thread.

and to contradict howie YES the gfci would TRIP even with the breakers off.

naturally moisture or other locations may be the issue,

it's very hard for ne1 online to sort this out on a trailer in cyberspace.

keep at it.

cheers
2air'
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Old 06-15-2010, 06:18 PM   #21
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One thing to look for after you remove the inside shroud and open the junction box, they probably used wire nuts (screw on) to connect the wires from the AC to the house wire and one of them may have come loose but look OK so you have to test each one.

For GFCI to trip it would be the white or bear wire.
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Old 06-16-2010, 12:12 PM   #22
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What 2air said.

A visual inspection of the wiring to the new A/C may reveal bare white wire or a crack in the insulation or an overtightened clamp.

If it doesn't, you can disconnect the white wire in the A/C junction box. If the gfci doesn't trip then, you know the problem is in the A/C somewhere and not in the trailer wiring.

People get sloppy with the insulation on the neutral wire but it's almost as important as the insulation on the hot wire.

Good luck.
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Old 06-16-2010, 06:28 PM   #23
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Thank you everyone, I am not home until Friday I will report back then.
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Old 06-24-2010, 10:37 PM   #24
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OK I am pretty embarrassed to write that it was completely my fault. While putting in my fan I put a corner screw right through the middle of the central wire. I could not see it because of the insulation. I am an idiot. Thanks for the help in narrowing it down.
Kevin
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Old 06-24-2010, 11:13 PM   #25
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don't feel like the lone wireREaranger...

even the pros do that stuff.

the short caused in the ac,

from the thread linked in post #11...

was from a factory tech doing sorta the SAME thing.
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at least you solved the issue

and didn't leave US hanging.

thanks for the follow up.

cheers
2air'
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