here you go
https://www.arprv.com/no-co-norcold.phpbut check for yellow residue in the back area. if you see it you had an ammonia leak and the cooling unit is dead. It's easy to replace the cooling unit and cheaper than buying a new fridge. I know because I just had to do that.
2011 F350 6.7L Diesel 4x4 CrewCab longbed Dually, 2019 Lance 1062, Torqlift Talons, Fast Guns, upper and lower Stable Loads, Super Hitch, 48" Super Truss, Airlift loadlifter 5000 extreme airbags