1. Blown Fuse: Check the fuses in the fuse box to see if any are blown. If a fuse has blown, replace it with a new fuse of the same amperage.
2. Faulty Blower Motor: The blower motor itself may have failed and will need to be replaced.
3. Faulty Blower Motor Resistor: The blower motor resistor is responsible for controlling the speed of the blower motor. If the resistor is faulty, it can cause the blower motor to not work or to only work at certain speeds.
4. Faulty Wiring: There may be a problem with the wiring connecting the blower motor to the power supply. Check the wiring for any damage or loose connections.
5. Faulty Climate Control Module: The climate control module is responsible for controlling the operation of the heating and cooling system. If the module is faulty, it can cause the blower motor to not work properly.
If you are not comfortable checking or replacing these components yourself, it is best to take your car to a qualified mechanic for diagnosis and repair.
