Thanks for the explanation about the ECT. 109 is too high a #, based on the temp gauge, which was probably about 85.

Still don't think the ECT has anything to do with it. However, it might explain why the CC comes on for heat when you first start the car in cold weather. I would have expected it to have no fan speed at all until the motor was warm enough to provide heat. However, you get heat with low fan speed until the temp gauge starts to move, at which time it switches to high(er) speeds. Having cold breezes on your feet isn't the most comfortable of feelings. I had assumed that the behavior was by design.

Any other ideas about the fan?