Ken:

Thanks for the info

I needed to go further in to get to the fan speed controls -- I resoldered those and voila, all the fan controls/speeds work like they're supposed to.

BUT

I have a small problem. When I first started car everything was fine -- hot and cold air were adjustable. Second startup, now all I get is hot air. All of the vacuum pumps are working as air is being divererted as it's supposed to, but nothing but hot on any setting.

Weird.

I guess I fixed one solder and screwed up another. Ugh.