Car air conditioning pipe pressure is too high to add fluoride
The main reasons for the high pressure of the automobile air conditioning pipeline leading to fluoride not added include the following :
The compressor does not work : The compressor is the core component of the air conditioning system. If the compressor does not work, the refrigerant cannot be circulated, resulting in increased pressure in the pipeline. Need to go to 4S shop to check and repair the compressor .
high pressure in the pipeline : high pressure in the pipeline may be due to too little cooling water flow, too high water temperature, too much scale or blockage in the copper tube or fin of the condenser, too much refrigerant, air in the system, etc. Remove the refrigerant completely, check and clean the condenser, and replace the expansion valve if necessary.
no vacuuming before fluoridation : Before fluoridation, press, hold and vacuum must be carried out to ensure that there is no air and moisture in the system. If these steps are not performed, the pressure in the pipeline will increase, which will affect the fluoridation .
dry bottle clogged : dry bottle clogged will affect the flow of refrigerant, resulting in increased pressure in the pipeline. Need to clean or replace the dry bottle .
operation method is not correct : during the operation, too much air pressure, the air conditioning unit does not start, the air conditioning computer board or remote control receiver problems can also lead to pressure rise. Follow the correct steps to add fluoride .
To solve the problem of high pressure of automobile air conditioning pipeline, the following measures can be taken :
Check and repair the compressor : Ensure that the compressor is working properly and replace damaged parts if necessary.
Clean or replace dry bottle : If the dry bottle is clogged, it needs to be cleaned or replaced.
Re-vacuuming : Ensure that there is no air or moisture in the system before fluoridation.
Check and clean condenser : Clean the scale and blockage on the condenser to ensure good cooling effect.
Replace the expansion valve : If the expansion valve fails, you need to replace it with a new one.
The main reasons for the high pressure of automobile air conditioning pipes include the following :
There is air in the system : the air is not completely emptied during maintenance, resulting in air mixed into the system, which increases the condensing pressure. The solution is to completely empty the system again and fill with refrigerant .
excess refrigerant : Too much refrigerant can cause pressure to rise. The solution is to completely empty the system and fill it with refrigerant .
Expansion valve blocked or faulty : If the expansion valve is blocked or faulty, the refrigerant flow is blocked and the pressure increases. The solution is to replace the expansion valve .
poor heat dissipation of condenser : scale or blockage on the surface of condenser leads to poor heat dissipation and increased pressure. The solution is to clean the dirt from the condenser and radiator grille and replace it if necessary .
cooling fan fault : The electronic fan of the condenser cannot be started normally or the wind speed is insufficient, resulting in poor heat dissipation and high pressure. The solution is to check and repair the cooling fan .
Impurities or oil in the system : Impurities or oil can hinder the flow of refrigerant, resulting in increased pressure. The solution is to use nitrogen or dry treated compressed air to repeatedly blow the system until it is clean and smooth .
compressor fault : internal parts of the compressor wear or leakage may cause abnormal pressure. The solution is to repair or replace the compressor .
Other factors : such as cooling water flow is too little, water temperature is too high, cooling system internal heat does not go out, etc., will also lead to pressure rise .
The hazards and effects of high pressure in automotive air conditioning pipes include :
reduced system efficiency : high pressure will lead to poor cooling effect, affecting the comfort of the car.
Component damage : Excessive pressure may damage key components such as compressors and expansion valves.
increased energy consumption : the high pressure state will increase the energy consumption of the air conditioning system, resulting in increased fuel consumption.
potential safety risks : A long period of high voltage may cause system faults and even fire hazards.
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