It was Christmas Eve several years ago. Everything was ready. Our overnight company would be arriving in a matter of hours. I opened the refrigerator to discover the inside had reached a balmy 70 F. This could not have happened at a worse time. Away to my computer I flew like a flash, straight to RepairClinic.com, where I entered the make and model of our refrigerator and read all the possibilities for why it was running but not cooling.