Fan Control Lever (Fan Switch)

Fan Control Lever (Fan Switch) Diagnosis
Current flows to the blower motor through the heater relay (X-6) to activate the rotation of the blower motor by turning ON the fan control knob (fan switch). Blower motor speed is controlled in stages by the resistor, by operating the switch from LOW to HIGH.




Chart A Blower Motor Does Not Run

Chart B Blower Motor Does Not Run At Low Position

Chart C Blower Motor Does Not Run At Medium Low Position

Chart D Blower Motor Does Not Run At Medium High Position

Chart E Blower Motor Does Not Run At High Position

Chart F Blower Motor Does Not Stop In The OFF Position.




Inspection
Check for continuity between the terminals of the fan switch.