Fuse was in the fuse panel on the inverter, under driver's side bed. Don't recall position number but in my panel, its the only 5 amp fuse and is labled "Appliances".
No idea what caused this fuse to blow. Of course, will be watching to see if it happens again...have plenty of spare fuses on hand. Good opportunity to test it as we're leaving this morning for a week visiting Savannah and Charleston areas.