My Roadtrek 210P also trips shore power GFCI outlets. I trouble shot the issue to the inverter. If nothing is plugged in to the 3 inverter outlets in my rig the GFCI does not trip. I called Tripplite support and they were incredibly great to talk to - but they said their inverters cause a GFCI to trip when current passes through them to the connected outlets. The work around is to turn on the inverter to provide inverted power to those outlets and then plug the RV in, as long as you leave the inverter function ON the GFCI will not trip. Of course, this is not needed when plugging into non GFCI power sources.
shore power with gfci breaker(30A) tripping
in Technical Tips and Tricks
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My Roadtrek 210P also trips shore power GFCI outlets. I trouble shot the issue to the inverter. If nothing is plugged in to the 3 inverter outlets in my rig the GFCI does not trip. I called Tripplite support and they were incredibly great to talk to - but they said their inverters cause a GFCI to trip when current passes through them to the connected outlets. The work around is to turn on the inverter to provide inverted power to those outlets and then plug the RV in, as long as you leave the inverter function ON the GFCI will not trip. Of course, this is not needed when plugging into non GFCI power sources.