poker5150
Ventura County
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Joined: 03/04/2007
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I have 50 amp service and for the last 9 months I have used a 50/30 pigtail to a 30/15 pigtail and then to a 12 gauge electrical cord to my garage and plug the extension cord into a 15 amp garage outlet. I had no problems until now. Now when I plug the extension cord into the outlet it pops the gfci in the garage. I tried plugging it into the 20 amp outlet in my laundry room and it popped the breaker. I would be thinking some sort of a ground problem but if I plug the 50 amp cord back into the trailer and run the genny I have no problems. I am at a loss. I can't plug into shore power without popping breakers or circuits but can run off the genny just fine????
Anybody had this problem or know what I can do to fix it???
2008 WW LE3305
2004 Ford F-350, 4X4, CC, SRW, 5-inch Pro Comp lift with 35 inch Pro Comp Extreme A/T's, 4-inch MBRP turbo back exhaust w/cat delete, SCT XCal-2, Autometer gauges, intake elbow, and some other mods 
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houtrz
Lake Jackson Texas
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Joined: 05/15/2005
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Just a thought but you might have a floating or isolated ground on your genset. I"d turn off all your breakers and fuses on the trailer then plug it back into the house. Start turning on one thing at a time until your GFI trips. Its tripping for a reason so you have some sort of problem. My brother ran into an issue with his roof mounted AC. After a year or so, vibration finally got the wire and cut into the insulation. Not a direct short but enough to trip the GFI which will trip on a differential of about 4-6 mA which isn't much.
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CTD
Stockton, CA, USA
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Houtrz gave good advice but I wanted to add a note. If the 20 amp laundry circuit trips a breaker you have a definite ground fault. Unless the laundry circuit is on a GFCI, a regular 20 amp breaker takes a pretty good problem to take it out. Are you using the same cords when you connect the genset? It could be as simple as the cords being shorted. Try plugging just the cords into the outlet and if it holds it narrows it down to the trailer; then do as Houtrz suggested to isolate the offending circuit.
1996 Dodge 3500 4X4 Dually Gear Vendors OD 1996 Alpenlite 29RK
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Patty98311
Arkansas
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Joined: 09/11/2006
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Sounds like maybe one the pigtails or the service cord into the MH is shorted, if you have an ohm meter, without any power connected to anything check continuity between the leads of each of the terminals of each of the pigtails and the cords independentaly of each other.
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enblethen
Moses Lake, WA USA
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Joined: 01/05/2005
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One of the cord bodies has a problem.
Use a Tester and check for open ground or neutral.
Did you try plugging in the cord without the rig connected?
Could be moisture in the cord and burnt through the insulation. Try another cord.
Bud
Suzuki XL7 pushing Pace Arrow
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Rossey
Appomattox, Virginia. / Rockville, Maryland
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Joined: 10/16/2006
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enblethen wrote:One of the cord bodies has a problem.
Use a Tester and check for open ground or neutral.
Did you try plugging in the cord without the rig connected?
Could be moisture in the cord and burnt through the insulation. Try another cord.
X2........ I had the same issue a while back.......narrowed it down to the 120v extension cord that I was using which was defective.
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poker5150
Ventura County
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Joined: 03/04/2007
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i checked all the pigtails with an ohm meter. they all checked out ok.
I have a built in genset so my 50 amp cord storage area has a female 50 amp receiver box that i plug the 50 amp cord directly into......so my cord is ok.
I will try turning off all the breakers and turn each one on one at a time and see if that helps. this is very frustrating. i'm supposed to leave on wednesday for parchers resort outside of Bishop for some late season trout fishing and i really dont want to have to run my genny for power when hookups are there.
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RGordon
Atoka, TN
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Joined: 02/17/2003
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I had this GFCI tripping issue once and turned off all breakers inside rv and reset GFI breaker. Reset all the breakers in the rv one at a time until they were all on and no breaker tripped and has not tripped since. I feel that some moisture came into the picture that caused my issue. Most of the time it is moisture in the outside 110v receptacle.
Ron & Libby Gordon
07 Ford F350 Dually Tow Boss Diesel
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mking
Indianland,South Carolina
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Joined: 02/14/2006
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I too would agree to try another drop cord,and use the same pigtails.Try taking your ohm meter and see if you have any readings between hot/netural and netural/ground.I would bet you do.
2006 Dodge Quad-Cab 2500 CTD,4;10 gears,pulling a Forestriver Flaggstaff 831qbss
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enblethen
Moses Lake, WA USA
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Joined: 01/05/2005
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Ok, your 50 amp cord plugged into genset receptacle works.
It still could be in an adapters or the extension cord.
you could try this method. Try using the adapters and plug rig into a receptacle in the rig using the genset as the power source. If it works you have isolated problem to 15 amp cord. If it doesn't then one of the adapters has a problem.
Did you measure the adapters between each prong to each of the others?
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