How to Turn on the Heater in a Car?
2 Answers
The method to turn on the heater in a car is as follows: 1. Locate the air conditioning control buttons on the dashboard; 2. Press the power button on the air conditioning control panel to turn on the vehicle's air conditioning system; 3. Click the A/C button to turn off the cooling function of the car's air conditioning; 4. Rotate the temperature adjustment knob to set the desired temperature, and the heater will be activated. The working principle of a car heater is: 1. The compressor draws in low-temperature, low-pressure refrigerant gas from the evaporator outlet; 2. Compresses it into high-temperature, high-pressure gas and expels it from the compressor, reducing pressure and temperature; 3. The refrigerant gas condenses into liquid, releasing a significant amount of heat.
When I first started learning to drive, I often got confused. After starting the engine, I turned the temperature knob directly, expecting warm air, but instead got a blast of cold air. Later, a friend told me the correct method: after starting the car, wait patiently for three to five minutes to let the water temperature rise to the middle position, then turn the temperature control knob to the red zone for warm air. Next, press the fan switch to adjust the speed, starting from level 1 and gradually increasing to avoid loud air conditioning noise. If there's an auto mode button, press it to let the system adjust intelligently. Also, remember to adjust the ventilation direction knob or button, such as directing it towards the feet or windshield in winter, which defogs faster and warms the car more quickly. New cars usually respond faster, while older cars may take a bit longer. Just remember not to run the fan at maximum speed for too long while stationary to avoid wasting fuel—driving a short distance will naturally warm up the car.
