The AC and heater does not respond to the Climatronic control, My reading here suggests its either the resistor or the blower fan itself. I have a replacement

resistor but I cannot locate where it is under the glove box by the fan itself. If anyone can suggest where I will locate this, perhaps with a photo I would be most appreiative.

It seems a simple task to change it but I cannot locate it. Thanks.

Are you climatic (the  manual one with 4 fan speeds) or climatronic (the fully automatic one with 7 or 8 fan speeds).

 

If it's climatronic, the fan doesn't have a resistor.  The speed is varied using pulse width modulation.

 

For climatic:

Mine is the fully automatic one, so thanks for the information. The pictures were brilliant too.😄