Tried powering up the fridge on AC with 30 amps connected. Battery connected and all breakers and all fuses okay. In auto it cycles to DC or gas. HW 276.
Check your GFCI outlets in the camper, if yours is wired like mine the GFCI by the fuse panel is the primary and the fridge wont run if it isn't reset. I know this sounds stupid but I had this same issue and used a multi meter to chase down the problem.