I dont really know where the wiring goes after it leaves behind the switches but behind or under the dash the wiring is fine. Any ideas? O also the a/c doesnt work but im not wooried about that but I know the switches are all together. No fan blowing.

 

It could be as simple as a blown fuse (called HTR A/C). It should be 25A.

Another possibility is the wiring, it goes under the dash and through the firewall next to the heater box. Then it comes up and connects to the blower harness under the hood.

Also, check the connections at the blower, the relay and the resistor pack.

This diagram might help: http://www.austinthirdgen.org/mkport..._continued.gif

Lou

 

i'm not sure about the wiring, but can you hear the vacume moving the heater when u move it to the vents or defroster? there is a small rubber diaphram or gasket in the heater control, when it goes bad , u cant change the setting. if u have no blower at all, check for power at the blower motor under the hood. maybe blower is bad. i just had to replace mine the other day. the only way mine would work, was to tap the blower motor with a wrench. then it stopped blowing , and needed replacing. good luck

 

thanks for the info.I have checked all the wiring and it looks fine. I noticed I get heat to the windshield but its not blowing. I will replace the blower. I priced it at autozone for 26.00. not bad.