At noon, I reviewed the articles about air conditioner cleaning by DX in the past. Unfortunately, I only found the experiences shared by Da Jiao and Old Dan. Because I found it particularly interesting, I decided to do it myself.
First, I observed the air inlet. Although there was an outer net covering it, the spray nozzle's guide tube was very long, with no obstacles at all. After spraying enough, I waited for 10 minutes, then turned on the external circulation. Soon, I could vaguely see some foam being blown out from the air outlet of the air conditioner. The smell seemed a bit improved, and the air outlet of the air conditioner was covered with foam evaporating tiny liquid.
The second step of air conditioner cleaning: Beijing JiGao Air Conditioner Repair, turn off the air conditioner, Beijing JiGao Air Conditioner Repair Center, then spray foam on the air inlet of the air conditioner, all the outlets inside the car, and the return air outlet in the trunk. Only then did I realize how large the air duct of the air conditioner was. After spraying everything full, the entire 500ml cleaner was used up.
Continue waiting for the foam to adhere to the inside of the duct, then turn on the air conditioner again. At this point, some foam surges out from the outlet, changing color from white to various colors. Since I was a bit impatient and had sprayed too much, a lot of foam blew out with the wind. I quickly wiped it clean with a wet cloth, squeezed the foam with my hand, which turned out to be earthy yellow, very dirty, and smelled terrible, proving that all the dirt inside the duct had been brought out. Continue running the air conditioner for a while, soon the smell became fresh, and basically there was no more odor.
Playing around while cleaning the interior and the air conditioner took a total of one hour.
In summary, for the first time cleaning the air conditioner, I lacked experience and used too much cleaner. Due to the high external temperature, a lot of foam condensed into liquid, and some of it dripped into the CD player through the duct, causing the CD player to fail to start. I took it out and dried it. Since the condensation was not water, there was no short circuit situation. If you really want to thoroughly clean the duct, as a precaution, you should take out the CD player and reinstall it after the complete cleaning is finished.