Why won't my 2000 chevy blazers air conditioner/heater turn off? Will this

Faust II

New member
affect my gas mileage? I have each dial turned to what should mean the system is off. The dial to turn it on is switched to OFF. The fan button is switched to 1, the lowest possible setting. But even though it is supposedly off, I still feel air coming through. It's very weak airflow, but I'm worried it will eat up my gas, moreso than already. Can someone tell me what is wrong, what do I do to fix it, and will this problem affect my gas mileage? I have the dial set to heat so even if it doesn't stop, at least it won't go through my gas so quickly...
 
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