Thanks George, for taking an interest in my problem. You can call me Linda, Yogi is my cats' name
Anyway, I'll see what's up with the fan this evening since I don't have the car at the moment. I also wanted to point out that I could feel some cold air coming from the vents while I drove the other day, particularly when I accelerated, but it obviously wasn't as strong as it was supposed to be.
Concerning the clutch on the compressor, I'll have a look at that also. As I said, I can hear something kick in when I turn the knobs but nothing comes out. How do you determine whether it needs a new blower motor, or blower switch?
Thanks again.