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06-01-2011, 06:30 AM
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#1
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Established Member
Join Date: Jan 2011
Location: Wadsworth
Posts: 33
M.O.C. #11016
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Campground Power Pedestal question
Very first time using our brand new Montana; staying at a local campground for a month to get used to everything. Been reading the MOC for months in preparation so I naturally printed off the excellent "Multi-meter to check campground pedestal" post and ran the test before hooking up for the first time. Got some unexpected readings for Step2 of the 50Amp test (testing each hot lead to ground). Each result was the same, only 30V for each side. All of the other tests were fine. Since I wasn't sure about this one, I used the 30Amp outlet instead which tested OK all around. Can someone tell me what the 30V readings on the 50Amp test mean and is it OK to use the 50Amp outlet?
__________________
Stu and Pam
Wadsworth, OH
-- 2011 3455SA
-- 2011 F350 Lariat Crew Cab, Long Bed, 4x4, 6.7L Diesel, Dually, AirSafe 25K hitch
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06-01-2011, 06:59 AM
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#2
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Montana Master
Join Date: May 2003
Location: New Bern
Posts: 4,294
M.O.C. #311
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Stu,
Jim Fischer (NCFISCHERS) wrote that testing guide.
30V is not what is expected. If you got 220 when checking both hots and good readings in step one then I would measure it again and make sure the ground connection is good.
Edit - after reading your post a second time, You should have the same reading for ground as you do for common. So if step one is a good reading and step three is not then the ground wire in the socket is probably loose. I would report it to the Park Owner.
Good catch. Since I helped edit the topic for Jim we are glad it helped.
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06-01-2011, 07:44 AM
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#3
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Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,160
M.O.C. #6433
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If the other steps checked OK, it sounds like neutral is not bonded to ground. But as John said, notify the park and let their maintenance person check it out.
In the meantime, if you have a 50/30 adapter, you can plug into the 30 amp outlet since it checked OK.
__________________
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
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06-01-2011, 08:36 AM
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#4
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Montana Master
Join Date: Aug 2008
Location: New Bern
Posts: 4,370
M.O.C. #8728
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I'm glad the checklist helped you out. I agree that the pedestal has a loose wire.
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06-01-2011, 12:57 PM
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#5
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Montana Master
Join Date: Feb 2007
Location: Fayetteville
Posts: 2,351
M.O.C. #6831
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If you do not have a surge protector, suggest you get one. As you can see you have experienced a problem with the pedestal on your first time out. Surge protector is good insurance.
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06-01-2011, 03:16 PM
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#6
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Montana Master
Join Date: Jun 2010
Location: Colorado Springs
Posts: 3,335
M.O.C. #10496
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+1
I never use the Monty without one ... of course mine is hardwired.
Quote:
quote:Originally posted by Jay Bird
If you do not have a surge protector, suggest you get one. As you can see you have experienced a problem with the pedestal on your first time out. Surge protector is good insurance.
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__________________
2010 3150RL
LevelUp, Dual 6 volt batteries, Progressive Industries EMS HW50C, Honda EU2000i Generator, Bridgestone Duravis R250 tires, Torklift Glowstep Revolution Stairs, LED Tail lights
2015 RAM 3500 Laramie SRW LB CC Cummins 6.7L Aisin Trans B&W RVK3600
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06-03-2011, 12:47 PM
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#7
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Montana Master
Join Date: Jan 2003
Location: Ft. Smith
Posts: 981
M.O.C. #116
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An EMS would be even better, especially for this kind of problem.
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06-04-2011, 03:58 AM
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#8
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Established Member
Join Date: Jan 2011
Location: Wadsworth
Posts: 33
M.O.C. #11016
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Thanks everyone. I didn't mention it in my original post, but (again after much reading of the MOC over the past 5 months) I had already bought and am using a Surge Guard. The problem has been reported to campgorund management and we're staying on the 30A connection until it is resolved.
__________________
Stu and Pam
Wadsworth, OH
-- 2011 3455SA
-- 2011 F350 Lariat Crew Cab, Long Bed, 4x4, 6.7L Diesel, Dually, AirSafe 25K hitch
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06-12-2011, 03:11 AM
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#9
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Montana Master
Join Date: Apr 2007
Location: South Shore
Posts: 6,009
M.O.C. #7110
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__________________
2011 GMC 4X4 dually CC, 6.6 Duramax with Allison Transmission. Formally 2001 Montana,2007 3400RL Montana, presently 2018 3401RS Alpine.
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