Coach in storage w/electric. Left for 12 days, when returned the pole gfsi switch was tripped; the panel was blinking red fault lites. Check the batteries; 3 chassis batts at 12.3 each; 2 house at 11.7. Tried resetting the power source and each time, the panel tried to display the usual lites but tripped the gfsi plug and died with the red lites blinking. Am in...