We FINALLY got our replacement part shipped to us and installed. The incubator has been running now for almost 24 hours. I have an additional digital temperature/humidity probe setting on the bottom near the outer ring and it is reading around 97.5 with the controller's temperature reading anywhere from 99.2 to 99.7. Using an IR temperature gun I took the temperature of the egg rack in several locations. Around the sides I was getting readings in the 97-98 range and near the center I hit a couple of spots at 100-101.
I think I'll try putting a towel under the incubator as suggested earlier in this thread and see if I get move even temperature readings.
Hopefully this coming week I'll have eggs. I'll be setting a dozen+ bantam eggs and will be monitoring the eggs shell temps as well.