What Causes Low Pressure or Negative Pressure in Car Air Conditioning?
1 Answers
This phenomenon is most commonly caused by the closure of the expansion valve or blockages in components such as the dryer filter. It is recommended to first check whether the expansion valve is in the open position and ensure it is functioning properly. Next, turn off the air conditioning, wait for the high and low pressures to balance, and then restart the air conditioning to locate the approximate position of the refrigerant blockage. In these locations, components like the dryer filter and valves are likely to be clogged with dirt. Introduction to Car Air Conditioning: The car air conditioning system (air-conditioning-device), commonly referred to as car AC, is used to regulate and control the temperature, humidity, air cleanliness, and airflow within the car cabin to optimal levels. It provides a comfortable environment for passengers, reducing travel fatigue, and creates favorable working conditions for the driver, playing a crucial role in ensuring safe driving as a ventilation device. Air Conditioning Layout: Different types of air conditioning systems have varying layouts. Currently, the most widely used in passenger cars is the integrated heating and cooling air conditioning system. Its layout involves assembling components such as the evaporator, heater core, centrifugal blower, and control mechanisms together, referred to as the air conditioning unit assembly.
