The noise seemed to be coming from the upper freezer compartment. I slid out the ice collecting bucket which allowed partial visual of the evaporator motor fan. It was spinning rather slowly and appeared to have a slight wobble to it. I ordered the evaporator motor ( AP3191003) and 2 mounting grommets (AP3647189). I followed APP's instructional repair video for the freezer compartment for disassembly and assembly. Within 3 or 4 hours the refrigerator was at 30 deg.F and the freezer was <0 deg. F. I had to manually lower the thermostats settings to achieve the desired temperature35 to 37 deg.F for the frig and 0 to 5 deg. for the freezer. Very happy with APP for excellent videos and ease of ordering parts.