How to Turn on the Air Conditioning When the Car Windows Fog Up?
2 Answers
To turn on the air conditioning when the car windows fog up, follow these steps: 1. Locate the temperature button on the car's air conditioning control panel; 2. Turn the button towards the red direction to activate heating, which will help remove the fog. The reasons for fogging up inside the car are: 1. A temperature difference between the inside and outside of the car; 2. The window temperature is below the dew point; 3. A temperature difference between the two sides of the window. The functions of the car's air conditioning system include: 1. Filtering the air entering the cabin; 2. Absorbing moisture from the air; 3. Maintaining clean air to prevent bacterial growth; 4. Preventing window fogging; 5. Adjusting the cabin temperature. The working principle of the car's air conditioning system is: The compressor sucks in low-temperature, low-pressure refrigerant gas from the evaporator outlet and compresses it into high-temperature, high-pressure gas before discharging it from the compressor.
After driving for so many years, I often encounter fogging inside the car, especially on rainy days or winter mornings. When fogging occurs, I first start the engine to ensure the air conditioning system has power. Then I immediately press the A/C button on the climate control panel, which activates the air conditioning compressor for effective dehumidification. Next, I adjust the vent mode to the windshield defroster symbol (usually the fan-shaped icon) and set the fan speed to medium-high to concentrate airflow on the glass. Using external circulation mode is crucial as it introduces dry outside air, while internal circulation would worsen interior humidity. After the fog clears, I may reduce fan speed or adjust temperature to a comfortable level. Additionally, regularly cleaning the inner windshield surface prevents grease buildup from affecting defogging efficiency, and checking/replacing cabin air filters maintains system performance. These are my practical tips to ensure driving safety.
