Should You Press the AC Button When Using the Car Air Conditioner?
2 Answers
When using the air conditioner in summer, you must press the AC button first. However, it's different when using the heater. The heater utilizes the car's internal heat circulation system, making use of waste heat, so there's no need to press the AC button. Therefore, remember, when turning on the heater in winter, you only need to adjust the air conditioning button without pressing the AC button. Here is some additional information: 1. The heater relies on the heat dissipation from the engine. There is a small fan in the engine compartment that blows the heat collected by the cooling system into the car. 2. If you don't turn on the heater, this heat will be discharged outside the car. Turning on the heater without pressing the AC button is simply making use of waste heat and will not increase any fuel consumption.
When turning on the air conditioning, should I press the AC button? As a car owner, I was quite confused at first, but practice makes perfect: you must turn on the AC button to cool the car down. The AC is the switch for cooling—once activated, the compressor works to absorb heat and lower the temperature, making the air cool and dry. If you only turn on the fan button without pressing AC, the air blown out might be warm or natural, which is fine in cold weather but unbearable in the scorching summer heat. Turning on the AC does increase fuel consumption slightly because it adds load to the engine, roughly an extra 10%, but the comfort of a cooler cabin is worth it. During mild spring and autumn, I can just use the fan to save fuel. If the AC system is functioning properly, cooling kicks in quickly—just remember to replace the filter regularly to prevent dust buildup and ensure good air quality. Prioritize comfort and safety over saving a little money.
