I actually did see the part. I even moved the lever by hand. I did unbolt the programmer and was trying to bring it down, but, for some reason, it didn't seem that like the actuator was going to come down with it (perhaps I was removing something else).
For the time being, I have put it back together. My heat is working, but I have had to set the heat to low temp setting before turning off the climate control. Then, I turn it on and move it up to 24 or 25 Celcius. I am going to monitor it some more and see if I can get away with this for now.
Silver, I do appreciate your help very much. It looks like a very tough job, though.