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Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI [message #324337 is a reply to message #324325]

Mon, 25 September 2017 08:50

Aaron

Messages: 21
Registered: February 2017
Location: Oklahoma

Karma:

Junior Member

Scott,

In that case, you just have to get methodical and run it down. It should be one of 3 things

1) ground and neutral wires connected to the same bus in the breaker box
2) incorrect wiring on one or more circuits that shorts the ground and neutral wire
3) a bad spot in the wiring where insulation has become exposed and the neutral wire is ground to the frame

There is a short write up in GMC Motorhome information, under "chassis electrical" "GFI testing."

http://gmcmotorhome.info/chassis.html#GFI

If you're familiar with using a multimeter to test for resistance and some basic wiring, than it's not too hard, if not, a good electrician should be able to run through the process quickly, and correct the *common* problems almost as quickly.

Scott Nutter wrote on Sun, 24 September 2017 21:18

And once again, mine is exactly like "thesmith's" either plug the 50 amp cord into the APU female receptacle or shore power.
I have no idea if this was stock or a PO upgrade. But with a 3 prong 110 AC adapter and cord it still blows GFI's.

78 Royale, rear dinette

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[Message index]

		First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Fri, 01 September 2017 11:25
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: lqqkatjon on Fri, 01 September 2017 12:37
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Mr ERFisher on Fri, 01 September 2017 12:47
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Fri, 01 September 2017 15:45
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: mghamms on Fri, 01 September 2017 12:55
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: powerjon on Fri, 01 September 2017 14:49
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Richard Denney on Fri, 01 September 2017 15:06
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Ken Henderson on Fri, 01 September 2017 15:36
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Fri, 01 September 2017 20:29
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Ken Henderson on Fri, 01 September 2017 21:38
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Sat, 02 September 2017 09:09
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Ken Henderson on Sat, 02 September 2017 10:19
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Hal StClair on Sat, 02 September 2017 15:28
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: JShot on Sat, 02 September 2017 21:33
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Sun, 03 September 2017 09:09
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Fri, 01 September 2017 15:38
		Re: First Post - Welcome By: Matt Colie on Fri, 01 September 2017 18:43
		Re: First Post - Welcome By: Aaron on Fri, 01 September 2017 20:33
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: JohnL455 on Fri, 01 September 2017 21:39
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Sat, 02 September 2017 08:41
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Scott Nutter on Sat, 02 September 2017 09:06
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Sun, 03 September 2017 09:23
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Scott Nutter on Sun, 03 September 2017 12:35
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Bullitthead on Sun, 03 September 2017 20:32
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Sun, 03 September 2017 23:07
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: powerjon on Mon, 04 September 2017 08:16
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: powerjon on Sun, 03 September 2017 23:01
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Richard Denney on Mon, 04 September 2017 08:49
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: johnd01 on Mon, 04 September 2017 11:45
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: JohnL455 on Sun, 03 September 2017 09:22
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: JohnL455 on Sun, 03 September 2017 12:52
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Scott Nutter on Sun, 03 September 2017 13:06
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: powerjon on Sun, 03 September 2017 14:09
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Bill Van Vlack on Mon, 04 September 2017 14:26
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Mon, 04 September 2017 21:44
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Bill Van Vlack on Tue, 05 September 2017 13:36
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: johnd01 on Tue, 05 September 2017 14:00
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Bill Van Vlack on Tue, 05 September 2017 14:56
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: thesmith on Tue, 05 September 2017 21:59
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: k2gkk on Wed, 06 September 2017 04:01
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Sun, 24 September 2017 19:47
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Scott Nutter on Sun, 24 September 2017 21:18
		Re: [GMCnet] First Post - Wiring 78 Royals Neutral Ground short trips GFI By: dan molnes on Sun, 24 September 2017 21:56
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Aaron on Mon, 25 September 2017 08:50
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: Bullitthead on Tue, 26 September 2017 00:19
		Re: First Post - Wiring 78 Royals Neutral Ground short trips GFI By: jhbridges on Tue, 26 September 2017 08:48

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