Refrigator compartment not cooling

This is a sign of a defrost problem or the damper is not opening from the freezer compartment. Look inside the rear of your freezer rear wall and see if frost is building up on the rear panel. If yes then unplug the refrigerator and remove the freezer rear panel to defrost the evaporator coils so you will be able to see the defrost heater under the evaporator. If burned out it will be easy to see because the outer case is glass covering the element that is inside. Let me know what you find and I will assist you in your repair, Thanks Sea Breeze