
1. Turn regulator handle 1 counterclockwise to the extreme left position, and regulator handle 2 clockwise to the extreme right position until it stops, as shown in the photo.
2. Set the switch for 3 operating modes of the heater electric fan to minimum speed and gradually, at short intervals, increase the speed of the electric fan by turning the switch clockwise to the right to maximum. Gradually increasing the speed of the electric fan will prevent the windshield from cracking due to sudden temperature changes.
