OK, still working on this issue.
Last week, the fridge, which had been off for about a week, I turned on, just on a whim to see if it would work. Note: I was testing the thermistor to see if that was the issue, so I unplugged it from the board.
For the entire weekend it stayed cold in the fridge and the freezer portion was nice and cold. However, the fins did not freeze or frost up, neither did the freezer. The fridge ran from Thursday evening until the following Tuesday and then that is when I noticed water on the fins and them not feeling as cold.
I went outside and sure enough, the heating element was not working. I tired firing on propane, and three times it tried to fire up, but would just initially catch fire on the propane coming out the pipe, but never steadily burn. I got the check light showing. This previously was not happening.
To review: I had previously replaced the heating element over the course of this thread. I have tested for voltage and things seem o.k. What's the issue? Board?