Kia Sauer's warm air is cold and hot. Why?

If there is left and right cooling, first check whether the actuator of variable frequency motor is in place. If it is normal, you can touch the two water pipes of the small water tank with your hands, and the temperature is different. If it is not the same, it is recommended to replace the small water tank, because it is blocked, and the latter is more likely to appear! If there is something wrong with the car, ask the car master. 4S shop professional technician, 10 minutes to solve.