• Not sure what year car. Either bad switch, fuse, or relay. See your owners manual to find out where fuses and relays are located.
  • If your car has air conditioning try your blower with the air on, and your blower switch in high. Sometimes another switch is piggy backed into the airconditioning circuit. I have seen many swithes melted down particulary with the Chevy S series pickups. Getting out the old wiring scematic may be needed, however I have never seen a wire fail without a smoke show. My bet is your problem is somewhere prior to the switch or the switch itself. either the control

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