It is also the normal use of many owners in the summer.。The car air conditioner has been idle for a winter，Some cars may have various problems，among them， Uncoated car air conditioners are the most common。The following is six reasons for automotive air conditioning。In order to make friends with all repairs easier to find faults。
the reason1：Lack of refrigerant
Automotive air conditioning usually every2?3Add a refrigerant。In some cars Even the owners who work more than one year is also very large.，Will the refrigerant in the car fly?？Why is it necessary to add air-conditioning if there is a sealing device？apart from， According to air conditioning and cooling， This is a physical reaction，No need to lose the refrigerant。Why don't you see?？In fact， 易彤破壁机售后 Even if the air conditioner is sealed but it can't resist the refrigerant，In addition， Slight leak in the air conditioning pipe or condenser。
The loss of the refrigerant is mainly based on leakage。If your car is poor，After adding a refrigerant for a period of time， It began to become bad。then，You must pay attention。This is usually happening is mainly the rhythm of blood, if the condenser leaks， Condenser needs to be replaced。The method of checking the leak is also troublesome，usually， Add a fluorescent to fluorofluorine to view special glasses，Where can you find the dew point?！There is also a relatively simple method to solve the serious leakage.，You can see the oil and wet surface of the condenser via the network.，under these circumstances， Condenser usually leaks。
the reason2：Air conditioning damper damage
The damage of the air conditioning damper motor failure is relatively small.。It's not that it has never appeared。If there is a problem with the flap motor， This will be very troublesome。The flap motor is usually located in the lower part of the dashboard.，It belongs to the main switch of air conditioning outlet，If it is broken This means that the switch is broken.，Even if air conditioners can cool cold air， It can only pass the crack，This means drinking poison thirst。When you find that there is no wind to spread after opening the air conditioner，You have to be careful。Need to remove the dashboard to replace the flap motor。This project is huge。
the reason3：Condenser is too dirty
In the summer， I often find that air conditioning is not good to test air conditioning system.，High and low pressure is basically normal，go with4sWhen the store is repaired， Usually suggesting that the owner is cleaned by water tank cleaning activities。The main purpose of cleaning the tank and condenser is heat dissipation。Spring willow flocculation will cause excessive engine temperature or poor air conditioning in the condenser。therefore， Each time， The owner must check if there are many hair on the water tank.。Cleaning Please be sure to use the blow gun to blow it.。Wash with water guns will be reversed。Not only air-conditioning bad fuel consumption will increase。
the reason4：Air-conditioning compressor， Damage of throttle or expansion valve
There is a sentence in the air-conditioned compressor circle“Low pressure and high pressure，Replace the compressor if the high pressure is low”，I don't know that the elder can sum up this well.。Air conditioning compressors are less likely to be damaged。So everyone doesn't care。As for the failure of expansion valves and throttle valves， It directly leads to poor air conditioning。These checks are very troublesome，Need to be repaired by a professional maintenance store。
Causes of uncoated automotive air conditioners5：Belt aging is too loose
I checked all the contents of the air conditioner.，There is no problem，What is the fact， Belt is also a relatively ignored component。usually， 4sThe store will remind you to change the belt during maintenance。If there is no change， Slipping in the project，Belt breakage， Belt abnormal sound No boost And air conditioning difference。Therefore, it is necessary to check the engine belt。
Automotive air conditioning uncoated reasons6：There is water in the pipeline
Car air conditioning refrigeration system has a dry box，Its main task is to absorb moisture in the refrigerant，And to prevent excessive moisture in the refrigerant to reduce the cooling capacity。When the desiccant in the drying box is saturated，water，Can't filter out，When the refrigerant passes through the expansion valve hole，Due to its pressure and temperature factors，Water in the cooling liquid freezes in the small hole，And lead to less flow of refrigerant，Advance，Still not cooling without flow air conditioning。
There are many reasons for poor air conditioning.， For example, the temperature sensor in the automobile has failed， Outdoor temperature sensor Wait a lot of very small reasons can't check，Don't worry about the air conditioning, except for the above6point，Basically, there will be no problem。
