Why is there still hot air coming out after the car air conditioner is turned off?
3 Answers
The reason why there is still hot air coming out after the car air conditioner is turned off is: the owner may have the external circulation mode on, so hot air is present. The air conditioner vents are connected to the outside, and if the engine hasn't cooled down or the outside temperature is relatively high, the air blown out will be hot when the air conditioner is not cooling. Car air conditioner maintenance methods: 1. In summer, when the temperature inside the car is high, do not turn on the air conditioner immediately after entering the car. Open the windows for ventilation or drive for a while before turning on the air conditioner. 2. Choose an appropriate temperature. Temperatures that are too high or too low can affect both the air conditioner itself and the human body. 3. Use of internal and external circulation. When encountering poor air quality outside the car, turn on the internal circulation to prevent dust and debris from entering the air ducts. After prolonged use of internal circulation, switch to external circulation to maintain fresh air inside the car.
I recently encountered this situation where the car still blows hot air after turning off the AC, which is quite uncomfortable. There could be several reasons: first, the fan hasn't completely stopped and is still blowing external hot air, especially when the external circulation is on; second, residual heat from the engine enters through the ventilation system after it has just been running; third, the set temperature is too high and not adjusted to the cold air mode. I recommend checking the settings first after getting in the car, ensuring it's set to internal circulation or the lowest temperature. Additionally, if the windows aren't properly closed while driving, hot air can enter, which doesn't have a big impact but should be avoided to prevent prolonged exposure to high temperatures affecting driving comfort. Regularly checking the AC filter can help prevent issues.
As a car enthusiast, I understand the common situation of hot air coming out when the AC is turned off. When the system is shut down, the blend door may be stuck and not return to its position, or residual hot air may escape from the ducts. When the engine temperature is high, the heat is blown in by the fan, especially in hot weather. Check if the ventilation mode is set incorrectly to avoid the automatic mode mistakenly activating the heating function. It's recommended to quickly inspect the recirculation switch or the position of the temperature knob. If the issue persists for more than a few minutes, it might be a valve malfunction requiring professional repair. Develop the habit of adjusting settings before starting the car to reduce unnecessary distractions and maintain focus while driving.
