Quote:
Originally Posted by Luvmytat2s
Run a power and ground from your battery to the prongs on the blower motor where it plugs in... if it's ok, it'll spin right away.
That's where I'm stuck at on fixing mine.. tested the motor and it worked perfectly.... and swapped in another HVAC head that's SUPPOSED to be functional (from a friend of a friend of a friend) and I still don't get the blower to kick on.
The control head clicks and I hear the valves working when I hit the switches, and I'll get ambient heat from the vents when in motion, but that's it... not a chirp from the blower motor..
Is there a resistor or something between the control head and motor? 
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I wonder if you might be having problems with the traces on your CC unit. Now, the odds of it happening on two CC units...

I've not had this problem yet but there is a thread that discusses a resolder of the circuit board on the CC unit.
Throwin a bone,
Codifex
1981 240D ChinaBlue (found an engine - hope it's good)
1983 300DTurbo w/sunroof