Frezeeer works fine. Refridgerator (top) does not

good morning,
with this unit there are two issues that could be cusing this...
check to make sure you can hear the fan in the freezer,
2nd check your back wall for frost, sometimes this model ices up in the air chanels, to know for sure you will have to remove both the walls and the back wall, it takes a lil time but it can be done with only a screwdriver,
once you get the back wall off look up in the corners, of the freezer, it there is frost or ice blocks , remove those and reassemble you should be ok
make sure the drawer is closing properly