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Facing the co-pilot's workbench, you can see it by disassembling it with a screwdriver.
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What should I do if the car air conditioner is not cooling? It's the hottest time of the year, and if you're out driving, you turn on the air conditioner. So, what if the air conditioner doesn't cool or the cooling is poor?
In fact, basically every important component of the air conditioner has a problem, and there will be no refrigeration. If you want to find the cause accurately, you need the current situation of the air conditioner to make an accurate judgment. Reasons and maintenance methods for car air conditioners not to refrigerate:
1. Insufficient refrigeration caused by too much refrigerant For too much refrigerant, it is generally caused by excessive refrigerant filling during maintenance, because the proportion of refrigerant in the volume of the air conditioning system has certain requirements. If the proportion is too large, it will affect its heat dissipation, that is, the more heat dissipation, the greater the cooling capacity; Conversely, if the heat dissipation is less, the cooling capacity will be small. Similarly, if too much cooling oil is added during maintenance, the heat dissipation of the refrigeration system will also decrease.
Inspection method: Observed from the sight glass above the drying tank. If you can't see a single bubble in the sight glass when the car air conditioner is running, and there are no bubbles after the compressor stops, it must be too much refrigerant.
If there is too much pressurized cooling oil, cloudy air bubbles can be seen in the sight glasses when the air conditioning system is running normally. Of course, if there is too much refrigerant, you can slowly release some of it at the maintenance port on the low-pressure side of the air-conditioning system. 2. Insufficient refrigerant caused by too little refrigerant Most of the reasons for insufficient refrigerant are due to the microleakage of refrigerant in the system.
If there is not enough refrigerant in the air conditioning system, the amount of refrigerant injected into the evaporator from the expansion valve must also be reduced, when the refrigerant evaporates in the evaporator. As a result, the amount of heat absorbed will decrease, and so will the cooling capacity. Maintenance method:
Insufficient refrigerant can also be observed from the sight glasses above the drying tank, if there are continuous, slow air bubbles in the sight glasses when the air conditioner is running normally, the refrigerant is insufficient. If there is a significant bubble flipping, it means that the refrigerant is seriously insufficient. If the refrigerant is insufficient, the refrigerant should be added, but it should be noted that if it is added from the low-pressure side, it is forbidden to pour the refrigerant bottle, and if it is added from the high-pressure side, it is forbidden to start the engine.
3. If the refrigerant and refrigeration oil contain too many impurities and micro-blockage and cause insufficient refrigeration capacity If there are too many internal organs of refrigerant and refrigeration oil in the whole air-conditioning system, the filter screen of the filter will inevitably be blocked, resulting in a decrease in the refrigeration passing capacity, an increase in resistance, and a relative decrease in the refrigerant flowing to the expansion valve, resulting in insufficient refrigeration capacity. Therefore, when maintaining air conditioners, it is very important to choose qualified refrigerants, especially those "three-day" products. 4. There is water infiltration in the air-conditioning and refrigeration system, resulting in insufficient refrigeration in refrigeration.
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Summary. Chinese "jieshi", "jie" points out the talents and achievements of the people; Hundreds of people are said to be handsome, thousands of people are said to be young, Beiying is said to be virtuous, and ten thousand people are said to be Jie. "Jie" lies in highlighting the characteristics of excellent, outstanding, and one-in-a-million products.
The "lion" is the king of beasts, emphasizing domineering and strength; "Lion" contains elements of the corporate logo. "Jieshi" means excellent, outstanding, intelligent, mighty, and dominating the world.
Chinese "jieshi", "jie" points out the talents, limbs, balances, achievements; Hundreds of people are said to be handsome, thousands of people are said to be young, Beiying is said to be virtuous, and Wanli is said to be a man. "Jie" lies in highlighting the characteristics of excellent, outstanding, and one-in-a-million products. The "lion" is the king of beasts, emphasizing the energy and strength of the tyrant; "Lion" contains elements of the corporate logo.
"Jieshi" means excellent, outstanding, intelligent, mighty, and dominating the world.
The book "Hongyan" tells the story of the arduous struggle between the Chongqing Prefectural Committee of our underground party and the dying Kuomintang reactionaries during the --- Liberation War, and created heroic images such as Sister Jiang, Xu Yunfeng, the old woman with two guns, and Hua Ziliang. The main content is: Sister Jiang was ordered to rush to northern Sichuan by boat, and skillfully dealt with the spies to save the day; Outside the city gate, Sister Jiang witnessed the tragic scene of her husband being killed by the enemy, and endured her grief and went straight to Huaying Mountain with Huawei; Xu Yunfeng entered the Shapingba Bookstore, a secret liaison station, at night, found something suspicious, and resolutely made the decision to withdraw from the station; Fu Zhigao defected to the enemy, Xu Yunfeng Tea Garden**; Chenggang was imprisoned, and in the face of torture, he wrote "Confessions of a Communist Party Member" with a pen; Xu Yunfeng went to the banquet to fight the enemy chieftain, and the righteous words severely exposed the enemy's conspiracy; Dregs Cave hunger strike, Long Guanghua bravely sacrificed; Sister Jiang**, a two-gun old woman skillfully pretending to rob a torture car; Sister Jiang would rather die than give in, Xu Pengfei's scheming was in vain; Celebrate the victory of the two major battles of Liaoshen and Huaihai, and the New Year's party of all the victims; Bai Mansion Chenggang accepted a new test, and the "honest injection" failed; Gao Bangjin was imprisoned in disguise, and his fellow refugees saw through the spy tricks; Hua Ziliang pretended to be crazy to deceive the enemy, and waited for the opportunity to get in touch with the party; Looking forward to the early liberation of Shancheng, Jiang Xueqin and his friends embroidered red flags; Xu Yunfeng and Jiang Xueqin laughed loudly in the face of death and rushed to the execution ground; The underground party led the prison escape operation, and Hua Ziliang led the People's Liberation Army to respond. >>>More
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Death, for a revolutionary, what a useless threat. >>>More
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Hope, longing, fraternity, unity, cooperation, happiness, diligence, hard work, seriousness, focus, study, steadfastness. >>>More