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Old 12-10-2011, 08:04 AM   #1
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Cheater Box

Okay, I know this has been discussed before. But I cannot find it anywhere. I want to know how I can use my "cheater box" on certain campground electrical pedestal. If the pedestal has a GFIC protected 20 Amp breaker the coach will not let the current into the coach. A few months ago someone posted a way to make a slight change in the wiring under the bed to temporarily allow this configuration. Any help here???
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Old 12-10-2011, 08:12 AM   #2
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Originally Posted by joedurrance View Post
If the pedestal has a GFIC protected 20 Amp breaker the coach will not let the current into the coach.
That's correct - the GFCI outlet/breaker is looking for identical currents on its hot and neutral legs. If they're not identical, the GFCI assumes that some current is flowing to ground and will trip. A "cheater box" for a 50 amp RV has a shared (common) neutral between the 30 amp and 20 amp circuits, so the neutral current will never be identical to the respective hot leg currents.


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Old 12-10-2011, 09:33 AM   #3
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There is no way a "Slight Change' will make it work. To make it work the two legs have to be 100% independent.

Now what you can do is convert your rig to a single Air Conditioner type.. (Well, sort of) to do this you do make a "Slight Change" basically you remove the wires that feed ONE of the air conditioners from a junction box or the breaker box (Exactly where depends on the rig) put a "pigtail outlet" in place of the wires you removed at the junction (NOTE: this may be a many foot long pigtail) and put a plug on the end of the wires you removed. Now,,, On a 30 amp site, you pull the plug and use an indepenedent extension cord to the 20 amp oulet.

There used to be a web site, last few times I tried it there was no joy www.PSRV.net

Check it out.
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