Gidpor, I replaced the #5 fuse and it had no effect.
Mind you it wasn't a brand-new fuse but a matching
spare that was in the fuse box.

CzarFC, I turned A/C on and drove at highway speeds with all the
vents closed except the driver's side vent. I could feel some
air and the temperature varied from min cool to min heat.

Also, when as I toggled through the pushbuttons, I could
feel the engine adjust as the compressor kicked on and off.
That wouldn't completely rule out the problem being the ACC
unit, I guess just the fan controls could be out.

Prior to this happening, I've heard no squealing or any other
noises from the fan.

Btw, based on the info I've got, how would you know the problem
is the blower motor and not the regulator?

I guess I'll try gidpor's key trick next and then hit it with my hand
to see if that helps. Next, I'll have to round up a meter to check
to see if the fan is getting power.

I just tweaked my lower back yesterday and it hurt like hell just
changing a tire for my wife this morning. I might wait a few days
before I try to pull that fan.

So far everyone has talked about replacing the fan. What about
replacing the brushes? Is that a fairly advanced job?

Bill