Ice maker would not produce ice unless the inlet was defrosted using a hair dryer but then only for 2-4 batches before tray would not be refilled. A survey of several websites suggested that the heater for the ice maker inlet tube or its controller had failed causing the inlet tube to freeze.
I decided to replace the heater and ordered one. Delivery was quick - receiving it a couple of days before it was scheduled to arrive.
The video was very helpful in making the repairs. Some features on my ice maker were different than the model used in the video, but they were minor. As suggested by the troubleshooting websites, the entire inlet tube was frozen when I removed it. Taking the old heater off was tedious but eventually was removed. The new heater was installed easily following the video example. It took me about 1.75 hours, but if I had to do it again I think I could complete the repair in less than an hour.
Within 48 hours I had a full bucket of ice, indicating that the heater must have been the faulty part.