GFI trips at home when trailer plugged in

wgriswold wrote:
Wouldn't turning off the breakers in the trailer turn off the appliances?

While turning off the breakers will prevent a hot to ground fault from tripping a GFCI, it does nothing to prevent a neutral to ground fault from causing the problem. Modern GFCIs have additional circuity to detect neutral/ground faults. A neutral to ground fault is difficult to find since turning off the breakers has no effect. The only way you can find the fault is by disconnecting the individual circuit neutrals at the neutral buss one at a time.

As to the OP's question - unless he had a fault occur at the same time he rewired the plug, I suspect a problem with the rewiring - I'd look for loose strands, etc. One other possibility is a bad adapter going from the RV connector to the household receptacle.

Finally, you can string as many GFCIs as you want. Like others, I often plug my trailer (which has 2 GFCIs) into GFCI receptacles with no problems. They do require power to reset. If both the RV & the household or campground GFCI trip, you have to reset the household one first.