I have lost power to the xantrex 1800 inverter. There is no power to the inverter control panel inside the coach so can't turn it on. I have checked all breakers, couldn't find one labeled inverter, but nothing is tripped, and also tried resetting the fuse button on the unit itself. Is there some where else to look? Everything is good when plugged in to shore powered, but inverter control panel is still dead. Any help greatly appreciated. Thinking inverter might be toast, but why no power to panel.