Why Can't the Air Conditioning Be Turned Off?

[RachelRose]

Here are the reasons why the car air conditioning cannot be turned off and the corresponding solutions: 1. The air conditioning switch button is damaged. Solution: Replace the button. 2. The car air conditioning thermostat is damaged. Solution: Replace the thermostat. 3. The switch contacts are stuck. Solution: Check the switch. 4. The switch circuit is faulty. Solution: Check the circuit. 5. Poor switch contact. Solution: Re-plug and fix it. Below is an introduction to the internal and external circulation of car air conditioning: 1. External circulation: The external circulation mode uses a fan to draw air from outside the car into the interior, allowing airflow between the outside and inside of the car. The air blown by the fan comes from outside the car, and even if the fan is not turned on, airflow is still drawn into the car while driving, replenishing fresh air inside the car. 2. Internal circulation: The internal circulation mode closes the airflow passage between the inside and outside of the car. Without the fan, there is no airflow circulation. When the fan is turned on, the airflow drawn in comes only from inside the car, creating an internal airflow circulation within the vehicle.