Why is there still air coming out after the Corolla's air conditioning is turned off?
2 Answers
Car air conditioning is turned off, but the air outlet still blows air because the external circulation mode is turned on. Introduction to car air conditioning: The car air conditioning device, referred to as car air conditioning, is used to adjust and control the temperature, humidity, air cleanliness, and air flow inside the car compartment to the optimal state, providing passengers with a comfortable riding environment and reducing travel fatigue. It also creates good working conditions for the driver and plays an important role in ensuring safe driving as a ventilation device. Car air conditioning layout: Different types of air conditioning systems have different layout methods. Currently, integrated heating and cooling air conditioning systems are widely used in cars. The layout involves assembling components such as the evaporator, heater radiator, centrifugal blower, and control mechanism together, which is called the air conditioning unit assembly.
I've been driving for over a decade and have encountered situations where the Corolla's AC was off but there was still airflow. The reasons are mostly that the fan controller wasn't completely turned off, or there was debris blocking the valve in the ventilation ducts. The Corolla's design sometimes retains a slight airflow after the AC is turned off to prevent window fogging or to maintain fresh air, which is not a serious malfunction. Check if the fan knob is turned to the off position; if air is still blowing, it might be that the motor relay is stuck. In humid weather, this design is quite practical as it prevents interior moisture from affecting driving visibility. You can try checking the fuse box yourself, but it's best to regularly maintain the AC system to prevent similar issues. This is a common problem in older cars, so pay attention to ventilation settings to avoid excessive battery drain.
