replace the switch.
if your blower is working on low and medium speed then it's not a fuse it is the blower switch
Blown fuse. Burned out blower speed resistor. Faulty blower switch. Bad blower motor.
Replace fan switch.
Chack the speed control switch and the resistor that controls the speed of the motor
It is not the blower motor,it is the speed switch on the dash.This is a common problem in many vehicles.
Could be, Blown fuse, Bad blower motor, Bad blower motor speed resistor, Bad blower switch,
Could be, a blown fuse, a bad blower motor, a burned out blower motor speed resistor, a bad blower motor switch,
Check the blower resister and then check the blower motor switch..
Could be,Blown fuse,Bad blower motor,Bad blower motor switch,Bad blower motor speed resistor,
If you have no blower speeds at all, first check the fuse. If the fuse is okay I would suspect the blower speed switch and its electrical plug has melted. If the switch checks okay I would suspect the blower motor is bad. If you have high speed only, I would replace the blower motor speed resistor. If you have all lower blower speeds but no high speed, replace the high speed relay.
It is most likely a bad blower motor resistor. Replace the resistor. If the problem continues, it could be the switch.
If you are referring to the blower motor only working on the high speed setting, then the problem is the blower motor Resistor Pack is defective. Replace it. It can be the blower motor speed control switch but not likely.