I just brought home my first 2013 Open Road mh. When I plug my coach up to my house on a 20 amp outlet. It trips the ground fault in the back bathroom as well as on my house even though nothing is running. I only want enough power to keep the house batteries charged and to pre-cool the fridge before a trip. My fifth wheel worked fine with this set-up. Am I missing something here ?
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Since you are tripping the house GFI, not the breaker, see if you can identify the cause:
Turn off RV main breaker and unplug all appliances. Plug in and see if the GFI trips. If so, the problem is between your shore power cord male end and the breaker box.
If not, start turning on things until you identify the culprit.
Did you shut off the battery charger on the motorhome before plugging it in? That can be a big load in and of itself when you first plug in and it is bulk charging.
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Most MHs are not friendly with GFI circuits. Find a non-GFI circuit to plug into. If you have an inverter/charger, you also need to set it to use only 5 amps from shore power. Make sure the water heater and fridge is off. Once you have established a good power connection, you can turn the fridge back on to cool down.
Just reread your post. Is the GFI popping in your house or the MH?
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