Only hot air from the AC system

On Saab 9000 the AC system might get stuck, resulting in a constant hot air flow. This can in many cases get resolved through a simple reset and calibration of the AC system.

To reset and calibrate the system in the Saab 9000:

  1. Turn on the ignition
  2. Hold both AUTO and OFF on the ACC device.
  3. Wait and allow the unit to work through the calibration. You will hear how all the dampers are opened and closed.

Check if the cool air works.