I watched the AppliancePartsPros.com video on troubleshooting the problem. The video provided six different causes of the problem. Fortunately, the fix was a simple one because I ordered the right part and got my appliance operating correctly. I ordered the part one day and received it the NEXT day, so I was astounded at the speed at which I got the part I needed. I installed the part with no trouble and was pleased with the results. This is not the first time I've relied on AppliancePartsPros for a repair and I am impressed with their knowledge and clarity of their instructional videos. After the repair, I took the suggestion that to improve the efficiency of my refrigerator to go ahead and vacuum the cleaning coils.
Thank you!