What is the difference between a blower motor and a blower motor resistor?
What is the difference between a blower motor and a blower motor resistor? The motor that runs the fan in the heating and air conditioning system in a car is called a blower motor. A blower motor resistor is a simple electric resistor. It's used in cars where the blower motor has only 4 or 5 fixed speeds, as on the left side in this diagram. See the photo of a Ford blower motor resistor. How does a blower motor resistor control the fan speed? The blower motor resistor controls the fan speed of the blower motor and the resulting...