1, the air conditioner of the car is not well sealed, and the airflow outside the car turns into hot air after passing through the engine compartment and enters the car.
2. The outer escape ring of the air conditioner is opened, and the air flow enters the car through the engine compartment and then heats up.
3. First of all, make sure whether the outdoor unit is running normally and whether the temperature in your room is too low, because the temperature difference between the air outlet and the air return outlet of the air conditioner is about 10 degrees. If the room temperature is too low, the air outlet temperature will not be high.