Blower Motor Knob
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Located in the A/C control panel, the blower motor knob controls blower motor speed in 4 settings. See Figure . The blower motor knob sends a voltage signal through the blower motor resistor in "1" to "3" positions and by-passes blower motor resistor in position No. 4. See WIRING DIAGRAMS . Setting blower motor knob to "0" position will turn system off.