My 5-year-old Kenmore refrigerator is not cold anymore. The refirgerator tried to start with some kind of sound but in a few seconds I heard a click and the sound stop (shutdown?). After one minute or so it tried again, and then it shutdown again in a few seconds. It kept repeating this sounds (try to start, then shutdown itself) and the refrigerator is not cold at all.
I have someone check the themostat and funs and they are all fine. What else should I check?
Thank you for your help!