Low Blower Speed

When the Low blower speed is selected, battery voltage is applied to the blower motor via the blower motor relay supply voltage circuit. Voltage is divided between the blower motor and 3 series resistors to achieve the desired blower speed. The blower motor is included in the series circuit by the blower motor supply voltage and ground circuits. The blower motor resistor assembly and the blower switch assembly provide a pathway to ground for the blower motor.