[cw3jason]

I was confused as well when I first got mine. I had a nice long chat with the inverter manufacture and they explained it to me. as well as why I would get an error sometimes after connecting back to shore power. led turns red. seems if the batteries have been sufficiently drained to cause the converter/charger to enter boost mode to get the batteries back up, The inverter does not like the converter/charger in boost mode charging because it puts out over 14volts and it causes the inverter to error out. to reset it, just shut it off for about 15 seconds and turn back on, or just leave it off while on shore power. once the batteries are back up and then charger returns to a trickle charge it will no longer bother the inverter.