Actually a neighbor did the research, identifying the possible parts needed. After I ordered and received them he replaced them and it worked.
The nut driver was used to take the panel off the back to access the parts.
I couldn’t have done it alone. (I couldn’t even pull it away from the wall.) He’s the one who found https://applianceassistant.com/appliance-repair/refrigerator-repair/troubleshooting-refrigerator-problems/ and YouTube sites to help figure it out. And he found the parts on your site. That was the hardest part. I live in the country and couldn’t get a repairman to come out here. Other option would have been to order a new one from 75 mi away. So far so good.