Is the AC in a car for cooling or heating?

1 Answers
StJessica
07/29/25 10:16pm
The AC button in a car is the cooling switch. The AC button controls the air conditioning compressor. In summer, when using the air conditioner, you must turn on the AC button to activate the cooling function. On the other hand, the heating function utilizes the car's internal heat circulation and does not require the air conditioning compressor to be activated. To use the heater, simply adjust the air conditioning controls without turning on the AC switch. When the car starts, the engine begins to warm up. Once the engine temperature gauge reaches the middle position, first turn on the heating system and set the air circulation to external circulation to expel the cold air from the car. After waiting for 2 to 3 minutes, switch the air circulation to internal circulation. When there is a significant temperature difference between the inside and outside of the car, the windshield is prone to fogging up. To address this, simply adjust the heating vents to direct airflow toward the windshield.
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