Location: 1 Find the firewall first (if you don't know it): Before opening the cover, the large iron plate standing near the windshield of the car body is called wall fire prevention.
2. Find the heating water pipe: there is a water pipe at the firewall, one end comes out of the car body, and the connected engine is the heating water pipe. The diameter of the water pipe is about 20MM, which is very cold when the car is cold, and it takes about 60 minutes to start.
3. Find the warm water valve. One of the two warm air pipes has a water valve and is controlled by a mechanical cable.
4. Remove the control line and operate the water valve to rotate 90 degrees. It is estimated that your control line has failed, so you can rotate directly without the sun. )
5. Trial operation confirmed that the air conditioner was not turned on for 5 minutes, only the fan was turned on, and the air outlet temperature was the same as the outside temperature. The valve operation was successful. The air conditioner can work normally. If you can't work, that's another problem. Welcome to ask again.