2. Faulty blower motor: The blower motor itself may be faulty. You can test the blower motor by connecting it directly to a power source. If the motor does not run, it is faulty and needs to be replaced.
3. Faulty resistor: The blower motor resistor controls the speed of the blower motor. If the resistor is faulty, the blower motor will not work properly. To test the resistor, measure the resistance between the terminals. If the resistance is infinite, the resistor is faulty and needs to be replaced.
4. Faulty switch: The blower motor switch controls the power to the blower motor. If the switch is faulty, the blower motor will not work. To test the switch, use a multimeter to measure the continuity between the terminals. If there is no continuity, the switch is faulty and needs to be replaced.
5. Faulty wiring: The wiring to the blower motor may be faulty. Check the wiring for any loose connections or damage. Repair any damaged wiring and tighten any loose connections.
