How is High Pressure Generated in a Car Air Conditioning System?
1 Answers
Introduction to the causes of high pressure in car air conditioning systems: 1. Incomplete vacuuming during maintenance: This can lead to air mixing into the system, increasing the condensation pressure. 2. Use of inferior refrigerant: The condenser's electric fan may fail to open properly or the wind speed may be insufficient. 3. Condenser blocked by foreign objects preventing normal heat dissipation: Slight blockage of the expansion valve. Below are the solutions: 1. Check if the refrigerant is sufficient: This can be estimated by feeling the temperature difference between the inlet and outlet pipes of the dryer or by using a manifold pressure gauge for detection. 2. Regularly clean dust and dirt from the air vents and the cabin: This not only helps maintain the car's appearance but also benefits the health of the driver and passengers. 3. Periodically check if the liquid level of the air conditioning system's refrigerant is normal: There are several methods to check the liquid level, but the most common and simplest is to use the inspection window of the dryer. 4. Check if the compressor belt is in good condition: If the belt surface and the pulley groove contact side are shiny, and there is a "squeaking" noise when starting the air conditioning, it indicates severe belt slippage, and the belt and pulley should be replaced; if the belt is too loose, it should be adjusted, otherwise, it may lead to poor cooling of the air conditioning system. 5. Check for oil stains on the air conditioning system's hoses and pipe joints: If leaks are found, consult a repair shop promptly for solutions.
