Why Can It Still Cool Without Turning on AC?
1 Answers
Not turning on the AC switch means the compressor is not working, and the air coming out of the car's air vents is at natural temperature, creating the illusion that the car can cool without AC. The function of the car air conditioning AC button: The AC button in a car is the switch for the vehicle's air conditioning compressor, controlling its activation and deactivation. The cold air from the car air conditioning comes from the operation of the vehicle's air conditioning system, which requires the compressor to work. In other words, only when the AC button is pressed will the compressor operate, and the air blown by the blower will be cold. Unlike household air conditioners, the heat source for car air conditioning comes from the engine's coolant. The coolant absorbs heat from the engine and is blown into the car by the blower, so heating does not require the air conditioning compressor to be turned on. Correct usage of car air conditioning: Turn off the air conditioning a few minutes before reaching the destination while keeping the blower running to evaporate moisture from the condenser, ensuring relative dryness within the air conditioning system. This reduces bacterial growth and odor formation. The air conditioning should also be turned on only after the engine starts. During daily use, although there is an air filter, a small amount of dust can still enter the ducts. If the air conditioning is consistently used at low fan speeds, dirt can accumulate inside, leading to odors over time and affecting health. In hot weather, it's best to start with the external circulation, lower all windows, drive for a few minutes, then close the windows and switch back to internal circulation for the fastest temperature drop.
