Auxiliary Low Blower Speed

When the auxiliary blower switch is in any position other than OFF, residual airflow from the front blower motor will flow from the auxiliary HVAC system.

When the Low blower speed is selected, the auxiliary blower motor switch applies a ground for the auxiliary blower motor. Voltage is routed from the auxiliary blower motor, through the high blower motor control circuit, through 3 series resistors in the auxiliary blower motor resistor assembly to achieve the desired auxiliary blower speed. The circuit is grounded by the low blower motor control circuit, auxiliary blower motor switch and ground circuit.