This switch is used to switch cold air and hot air in the air conditioning system. Turning left in the blue area is cooling, and turning right in the red area is warm air. However, the realization of hot and cold switching function needs to work with other equipment of air conditioning system. The specific operation steps are as follows:
First, step on the brake pedal of the car.
Second, twist the car key and start the engine.
Third, run the engine to a water temperature of 90 degrees.
Fourth, turn the wind speed knob and turn on the air conditioner.
5. Turn the temperature adjustment knob.
Sixth, the refrigeration mode needs to press the A/C key to turn on the compressor.
Seven, warm air mode needs to press the internal circulation button to save heat energy.