Checking the blower fan

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on.

  Check that the blower fan functions by turning the blower fan knob to maximum fan speed.

Is the blower fan working? 

• YES 

  Refer to Checking the wiring 

• NO 

  Refer to Checking components and wiring