I'll try that in a little bit but I've never had this problem before. Just some squeaking.

Am I right that if the fan speed is on auto the fan will only start once the engine has heated to a point where it is capable of providing heat to the cabin?

Am I right that if the fan speed is set to the top button (solid fan symbol) it will blow high speed until manually switched to something else? Sorry for some of these questions, but the car came wihout an owners manual and I haven't tried to get a replacement. All this is for an '89 300TE.