Hi mayer, Thank you for the suggestions. I checked, and I don't see any coils or fans. I did lean it back, and heard a noise in the big black thing. Not sure what that is. This is the fridge upside down. There is a kind of plastic, "sign board" kind of material along the back. I didn't see how to remove it. Do you think it's the black thing or do I have to cut that sign board material away?