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Old 12-11-2012, 03:05 PM   #15
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1984 34.5' Airstream 345
Foothill Ranch , California
Join Date: Mar 2010
Posts: 3,374
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Gunner ID'd the Black/white striped wire 100% correctly...
It is the power wire for the reel compartment light.
I had pulled it up thru the hole in the floor, and not replaced it.

Strike it as being anything to do with the issue at hand.

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Old 12-17-2012, 09:57 AM   #16
Rivet Master
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1984 34.5' Airstream 345
Foothill Ranch , California
Join Date: Mar 2010
Posts: 3,374
Images: 1
Electrics are NOT my strong point....

With that in mind I took my Sears DMM over just to see if I could gain some more info.
The DMM is in "Auto Ranging" Mode and set on Ohms...
The readings were fluctuating a little, so I just wrote down the approximate value.

With the MH unplugged, and no genset attached or running, I took reading between the pins on the plug, and the pins and a ground point on the MH body... I hoped they might help..

I believe in the following pics the plug is Ground top pin. RH lower pin is 120v. LH lower pin is Neutral.

Between 120v pin and Neutral Pin was 6.5 M-Ohms.

Between Neutral pin and Ground pin about 13.5 M-Ohms

Between 120V pin and Ground pin 23.5 M-Ohms

Between Neutral pin and ground point on MH body 2.3M-Ohms

Between 120v pin and ground on MH body 11.9 M-Ohms.

Between Ground Pin and ground on MH body 3.0 Ohms.

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Old 12-17-2012, 10:52 AM   #17
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1974 20' Argosy 20
Richmond , Kentucky
Join Date: Jan 2003
Posts: 5,137
Originally Posted by Keyair View Post
Electrics are NOT my strong point....
I don't see anything in your readings that would point specifically to an open neutral.

From looking at the readings I would say all of your breakers are in the closed position. With the breakers closed when taking a reading from hot to neutral you would be getting readings between any devices that are "turned on" at the time. The only things that comes to mind would be your DC converter and possibly your fridge.

Somehow what you need to find is where the neutral connection is "broken".

I would suggest disconnecting the shore power cord neutral, ground and hot leads from their connection points within the coach and then retake your readings. What I would suspect is there will be no reading on the neutral white wire between the male connector and the wire you disconnected inside the coach.

Sorry that's the best I can do with your information


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1974 20' Argosy Motor Home
1974 31' Excella trailer (parting out, as of 4/1/2015 I have wheels, brake drums, windows & holding tanks left to sell)
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