Can You Turn on the Air Conditioning and Heater Without Starting the Car?

1 Answers
VivienneFitz
07/30/25 6:02am
You cannot turn on the air conditioning and heater without starting the car for the following reasons: 1. Turning on the heater causes the battery to discharge without being charged, which can damage the battery; 2. Without current, turning on the heater can burn out the heater supply circuit. The correct method to turn on the heater is: 1. Start the car and wait until the water temperature rises to the normal level before turning on the heater; 2. Set the air conditioning circulation mode to the internal circulation mode; 3. Switch to the heater mode; 4. Do not turn on the AC switch; 5. Adjust the air conditioning level to a suitable position. The car air conditioning system consists of a refrigeration system, heating system, air distribution system, and control system. Its functions are: 1. Improve the air quality inside the car; 2. Provide a comfortable riding environment for passengers and reduce travel fatigue; 3. Create good working conditions for the driver and ensure a safe driving ventilation system.
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