GFI trips at home when trailer plugged in
Today I plugged my trailer in at home in preparation for a trip, to charge the batteries. The GFI in the garage was tripped. I turned off all the breakers for 120V in the trailer and it still tri...
Forum Discussion
I would be checking that cord with an ohmmeter. Disconnect it from power! With the breakers tripped, there should be infinite resistance between the hot conductors and ground. A GFI is supposed to trip at about 2 mA corresponding to a resistance of 60 kOhms on 120 V so you will likely see less than that. Now is it the cord or something in the breaker box? The only way to find out is to disconnect the cord at the breaker box. Is the less than 60 k resistance on the cord or is it on the terminals it was connected to? If in the cord and you can disconnect a wire at the plug end, you can tell which wire it is and whether it is the plug or the cord itself.
