It would be nice to know what fridge you have.
Go outside remove the cover, plug in another 120v item such as hair dryer and see if you have power to 120v receptacle.
Fridge has two 120v heaters that could have gone bad along with many other things.
2008 Newmar DSDP 4320, 2012 Flex Titanium Toad,
Cummins ISL 425, SMI Air Force One, Samsung RF18