85 AC not Blowing
I have a 85 vette thats AC/ Heat does not blow. I have power to the consol as i can see the defrost light come on when i turn it to on, i also see a vent open in the back when i remove the front panel and look down my vent and cycle threw the different options for where the air will blow. No fuses are blown i checked them all. I've looked for a while at this taken the radio out and checked the connections in the back many times. No idea where to go from here.
I have a 85 vette thats AC/ Heat does not blow. I have power to the consol as i can see the defrost light come on when i turn it to on, i also see a vent open in the back when i remove the front panel and look down my vent and cycle threw the different options for where the air will blow. No fuses are blown i checked them all. I've looked for a while at this taken the radio out and checked the connections in the back many times. No idea where to go from here.
Usually if one of the resistors is open then some fan speeds will work and others will not, so the resistor network does not seem to be your problem. In any case the fan should work on high speed because that is controlled by the fan relay, which bypasses the resistor network.
This diagram might help:






