Pull the outside fridge grill off and follow 2 wires that go to the fridge chimney on the right. There is a reset button located between where the two wires attach to the switch on the chimney. It can be hidden in insulation. I was told that this switch cuts off the fridge to prevent damage when the trailer is not leveled properly. Hope I'm not sending you on a wild goose chase on this.
2013 Ford F250 SD 6.7L
2014 Wildwood Heritage Glen 282RK
Certified Rumble Strip Tester