I dont have any heat.... whats up with that, its just cold air that blows...

 

What year is it? My 94 HB had the same prob when I slammed the heater to hot. A gromet behind heater came loose the cable did not adjust the temp correctly. easy fix: you can try to get at through the glove box by holding the wire casing in place(usually black) and adjusting the control or to see it you will have to pull the radio..Works on my 94 hope this helps.

 

ahhhhh