RV Storage 110 AC Shore Power GFI Keeps Tripping after a period of time??
The RV Storage place I use supplies GFI 110 AC outlets for the covered storage spaces so people can maintain their batteries at full charge.
When I plug my 2018 Jay Flight SLX 212QBW 30 amp cable via a Camco 30AMP Female to 15AMP Male Dogbone to the GFI outlet everything seems fine. When I return a day or so later the GFI has tripped. To plug in I first turn the main breaker off in the trailer, then plug the dogbone into the outlet, then plug the 30 amp shore power cable into the dogbone, then turn the main breaker in the trailer back on. It does not trip immediately when I reset and plug back in using the procedure above or even within a few hours.
I've tried turning off all the breakers and then turning them back on one at a time and none of them trip the GFI on the outlet as I turn them back on. I check for moisture but don't see any plus it has been 90 degree highs and the trailer is under cover.
Besides the usual storage loads, I am running an added on Progressive Dynamics 9245C to maintain/charge my batteries (2 X260Ahours 6 volt Deep Cycle GC - Trojan T-145s) rather than the WFCO 30 AMP charger/converter. The charger breaker on the WFCO 30 AMP Power Unit is kept turned off.
I also have 360Watts of roof mounted solar panels with a Victron 50AMP MPPT Solar Charge/Controller connected to the batteries and panels. I don't disconnect the solar controller at any time even when plugged into shore power.
Any ideas on how to trouble shoot the GFI tripping or what may be causing it?? If it was a ground fault wouldn't the GFI trip right away when I try to plug in or at least within the first hour or so??
Since I'm not using the trailer while at the storage place I'm not placing any additional loads from using the microwave or watching TV, water heater, refrigerator, etc wouldn't it trip right away if I was overloading the circuit??
Any help or suggestions would be greatly appreciated.
2018 Jay Flight SLX 212QBW Rocky Mountain Edition
2016 Ford F-150 XLT 4x4 SuperCrew 3.5L Ecoboost
HD Towing Package 145" WB
560 watts solar, roof mounted and portable suitcases
2000 watt PSW Inverter