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Old 07-05-2011, 05:53 PM   #1
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Question electrical problems

I have a 2008 roo. All of a sudden I started getting shocks off the metel parts of the camper. I cleaned up all ground wires, and checked for any bare wires. That seemed to take care of getting shocked, but now when plugged into a gfi outlet, the outlet trips under any load other than the fridge. It seems to work fine when plugged into a non gfi outlet. Any ideas???
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Old 07-05-2011, 06:02 PM   #2
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1st step is to cut all of the breakers in the power center off, and plug back into your GFI receptacle. With those types of problems, do not plug into a non-protected receptacle.

Next, start turning on the breakers 1 by 1, and see which 1 or 1s trip the house GFI. That will get the problem narrowed down some.
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Old 07-05-2011, 08:42 PM   #3
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If you have a GFCI inside the camper it will cause the house GFCI to trip since it is looking for .5 miliamp to ground which the other GFCI is using to test the circuit. In other words gfci wired together do not like each other.
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Old 07-05-2011, 09:31 PM   #4
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Here is some info on GFCI's that may be your problem
If the hot and neutral wires are reversed, the circuit may still test normally, but you may not have ground-fault
protection. Verify that the wires are properly connected by testing an outlet on the circuit for correct polarity. A
GFCI should not be used with lights, freezers, refrigerators or medical equipment. A GFCI cannot be used with
appliances which are individually grounded, such as ovens or dryers
Why a GFCI should not be used with major appliances:
A Ground Fault Circuit Interrupter is supposed to be a valuable safety device. Why not use them everywhere, even on
large appliances with 3 wire plugs?
A properly grounded 3 prong outlet provides protection for both people and the appliance should a short circuit
develop between a live wireand the cabinet.
Highly inductive loads like large motors or even fluorescent lamps or fixtures on the same circuit can cause
nuisance tripping of GFCIs which needless to say is not desirable for something like a refrigerator.
Many (if not most) GFCIs also test for a grounded neutral condition where a low resistance path exists downstream
between the N and G conductors. If such a situation exists, the GFCI will trip immediately when power is applied
even with nothing connected to the protected outlets.
One: Removing GFCI protection from a receptacle in an area where the receptacle is required by Code to have GFCI
protection creates a problem. This can be called a Code violation and a hazard. The receptacle is not GFCI protected
when the RV is gone.
Two: The longer the wires, the more the "bleed" current will be. The GFCI receptacle inside an RV will see bleed
current only from the load plugged into it. The GFCI protected receptacle inside the dwelling will see the same
bleed current from the load, and will also see the bleed current from all the wiring energized by the RV power cord.
So, if you plug in a load inside the RV, into the RV's GFCI receptacle, a load that has a bleed of 3 milliamps, then
the 3 milliamps is not enough to trip the RV GFCI. Adding that 3 milliamp load bleed to, say, hypothetically, the
whole RV's bleed of 3 milliamps, then the GFCI protected receptalce inside the garage has a total of 6 (six)
milliamps bleed to ground and that GFCI will trip.
There is no technical problem. Both GFCIs are doing what they are supposed to do.
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Old 07-05-2011, 09:49 PM   #5
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Quote:
Originally Posted by onetonford View Post
If you have a GFCI inside the camper it will cause the house GFCI to trip since it is looking for .5 miliamp to ground which the other GFCI is using to test the circuit. In other words gfci wired together do not like each other.
Not a problem with my camper.
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Old 07-06-2011, 08:02 AM   #6
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We've heard of a bad hot water heater element causing this.
It's one thing to check...
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