Steven,
Thanks for the info. I should have time tomorrow to (try to) take it apart and check it all out.
The only 'speed control' is the thumb dial on the far right of the heat/ac console. Is that what you're talking about?
Also, do you know, is that whole display unit [[with the led readout, switches along the bottom (ac, max ac, floor, vent, defrost etc) and 'speed control' ]] replaceable as a unit? And is it very tough to get out?
Thanks a lot!