I thought my blower was out so I tested it. I worked just fine. I'm guessing that there is some sort of switch and is keeping the heater blower from coming on. What might this be? My heater works but it won't blow any hot air out due to the fan not turning on. Any help?

 

What about that red resistor by the blower? Is there a switch by the drivers side kick panel? I just got a foot of snow and no heat. I'm going to take it in tomorrow morning. Hopefully the shop can figure it out.