The Blower Motor is an essential part of a vehicle’s HVAC (Heating, Ventilation, and Air Conditioning) system.
🔧 Description:
It is an electric motor that drives a fan to circulate air inside the cabin.
Typically housed in the HVAC unit behind the dashboard.
Works with the heater core, air conditioner evaporator, and vents to control airflow.
✅ Functions:
Pushes heated or cooled air through the cabin vents.
Maintains comfortable temperature for passengers.
Supports defogging and defrosting of windshield and windows.
Provides adjustable airflow speed using the blower motor resistor or control module.
⚠️ Symptoms of a Faulty Blower Motor:
Air not blowing from the vents.
Weak or inconsistent airflow.
Unusual noises (whining, rattling, or grinding) from the motor.
Blower only works at certain speed settings or not at all.
🚗 Importance:
A functional blower motor ensures passenger comfort, proper ventilation, and safety by keeping the windshield clear. Failure can lead to uncomfortable cabin conditions and visibility issues.