After using it for 8 months, my Ourui car is in a state where it can't turn on the heater and air conditioner. After driving for a while, the cab was obviously hot and the upper surface of the instrum

After using it for 8 months, my Ourui car is in a state where it can't turn on the heater and air conditioner. After driving for a while, the cab was obviously hot and the upper surface of the instrument panel was hot. The hot air in the cab is blown out of the hot air tank by a fan. However, it is sealed in a plastic box and controlled by shifting gears. Where to go, such as leg blowing, face blowing, air blowing and so on. Now, if you don't blow, there will be warm air. It may be that the closed plastic box of the heater box is open or damaged. Find an auto mechanic. An experienced mechanic can tell at a glance.