After some investigation, it turned out to be the thermostat. I ordered a new thermostat. The new thermostat was exactly like the old one. The hardest part was putting a new tubing over the wire took me about 25 minutes to install. The refrigerator came back to life and working beautifully. I want to thank AppliancePartsPros.com for the fast service. Don’t buy those aftermarket parts. They might be a couple of bucks cheaper, but you get what you pay for. My refrigerator is twenty years old and runs like new. I felt my refrigerator was better than the new ones being sold, just my opinion.