Blower Motor Resistor: Description and Operation
The blower motor resistor is in series to the blower motor. Its purpose is to control the speed (or RPM) of the blower. The resistors allow for the selection of blower speeds, LO, M1 and M2.
The blower motor resistor is in series to the blower motor. Its purpose is to control the speed (or RPM) of the blower. The resistors allow for the selection of blower speeds, LO, M1 and M2.