How to Turn on Car Air Conditioning and Heater?

2 Answers
Chad
07/29/25 9:59pm
To turn on the car air conditioning and heater, follow these steps: 1. Start the car; 2. Press the AC button to activate the air conditioning; 3. Wait until the water temperature rises to the normal level; 4. Turn the knob to the red zone to switch to the heater mode. The car air conditioning system consists of a refrigeration system, heating system, ventilation and air purification devices, and a control system. The functions of the car air conditioning system include: 1. Achieving a cooling effect through the continuous circulation of refrigerant; 2. Utilizing engine coolant, waste heat, or heat generated by a burner as a heating source, which is then distributed by the blower to warm the air inside or outside the car, raising the temperature at the air outlets for heating purposes; 3. Drawing in fresh external air for ventilation and air exchange, which also helps prevent windshield fogging; 4. Removing dust, odors, smoke, and toxic gases from the car's interior to freshen the air, as well as humidifying the air to increase its relative humidity.
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LaPresley
08/15/25 9:54pm
As a long-distance driver, using air conditioning and heating should be adjusted according to the weather. In summer, when getting into the car and feeling uncomfortably hot, I first start the engine to let the fan run, locate the obvious AC button on the center console, press it until the light turns on, indicating the air conditioning is activated, then turn the temperature control knob to the blue zone to cool down. In winter, for heating, after the engine warms up, simply rotate the temperature knob to the red zone, and the system automatically uses the engine's residual heat to warm the air without needing to press the AC button to activate the compressor. Additionally, regularly check the cabin air filter to prevent clogging, maintain clean air, and avoid bacterial growth that could affect health. Developing this habit can make driving more comfortable and safer.
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