The heating switch is generally displayed as a "thermometer", or has red and blue color marks on both sides. By turning the knob, the red area gradually increases the temperature.
Note:
You do not need to press the A/C button to turn on the heating air conditioner in winter. The AC button is the switch for the air conditioner compressor. When using the air conditioner in summer, you must turn on the AC button, that is Turn on the cold air; while the warm air only uses the heat cycle inside the car and does not need to start the air conditioning compressor at all. Therefore, to turn on the warm air, you only need to adjust the air conditioning button and do not need to turn on the AC switch.
Extended information:
Precautions for turning on the air conditioner in winter:
In winter, many car owners close the windows and turn on the air conditioner for a long time in order to ensure the warmth in the car. Warm air. Although this can ensure a suitable temperature inside the car and protect people from the cold, it can also easily cause air pollution in the car. This is because many cars use asphalt damping pads and other materials that are prone to volatilizing harmful gases. As the cabin is sealed for a long time, the concentration of harmful substances will increase, causing discomfort to the human body. The most direct and ideal way to avoid air pollution in the car is to carefully select healthy and safe body materials.
At the same time, even when the air conditioner is turned on, the car windows can be opened appropriately for ventilation to ensure good air circulation inside and outside the car. However, opening the car windows will inevitably affect the temperature inside the car. With the improvement of people's health awareness and the advancement of science and technology, many cars are now equipped with air purification equipment, which can intelligently detect the air quality outside the car and promote reasonable air circulation inside and outside the car.
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Baidu Encyclopedia - Car Heating System
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