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Fred_n_Jo's avatar
Fred_n_Jo
Explorer
Mar 21, 2018

generator popping gfi outlets

We've had our camper for a little over a year and in that time only used the generator a couple of times to run the microwave when camped without electric hookup. Those times I didn't notice any problems with any other circuits.

Yesterday we were in a primitive campsite and needed to recharge our e-books and a laptop so I crank up the factory built-in Onan 2.5 that came with our unit probably for an hour or so to do the recharge. Both GFI outlets popped. One is in the kitchen with nothing plugged in and the other is in the basement storage area with the converter plugged in. With this one popped there is no way to charge the house batteries with the generator.

This is our first experience using a generator so haven't a clue whether this is normal or not. Also found out that the Onan 2.5 drinks lots of LP.

34 Replies

  • Bad ground could be causing your problem. Start by checking for loose connections.
  • I would start with turning off all breakers at the 120 power panel. Run the generator, then turn on breakers one at a time.

    If the converter blows the GFCI, unplug the converter. Remember that the GFCI in the kitchen may also protect all outlets further past the actual plug point.

    Use some extension cords from shore power with a GFCI protected circuit to see what happens when you plug the converter in there.

    Isolate the problem first. Maybe the leads on your power panel might have a loose connection. All hots, neutrals, and grounds have to be tight.
  • Longest I have ran mine is for 30 minutes, usually to top up the batteries in the morning, but I have not had it pop my gfi's. I would put a voltmeter on that generator to see if you have an issue with power surges or it could be a grounding issue.