On mornings when the blower doesn't operate, it
doesn't work on defrost either; I'll have to try
adjusting the temperature wheel to cold to see if that helps the next time the blower goes on strike.

I'll also check to see if I have voltage at the fuse next time. I have had the ignition switch
temporarily jam a few times lately. All other
accessories work, the rear defroster, signals,
and radio...