A google search resulted in a lot of the same problem, with all brands of RVs that have that model fridge. Being a 2020, you probably have the owners manual for the Dometic, but in case you don't, here it is:
https://bryantrv.com/docs2/docs/Serv...,%20RM1350.pdf
From what I've read, there's several possible causes. The fridge should be turned off before replacing the fuse. The fuses are mentioned briefly on page 23 of the above manual.