What to Do When Car AC Has Normal High Pressure but High Low Pressure?
2 Answers
The issue is likely caused by a damaged or faulty air conditioning expansion valve in the AC components, and it needs to be repaired at a 4S shop. Here is relevant information: 1. Precautions for removal: Removing the AC expansion valve is very troublesome. After repair or replacement, it is necessary to check whether the compressor refrigerant is insufficient. When replacing the AC expansion valve, there will be some leakage of the compressor refrigerant. If not checked in time, it may affect the compressor's operation. 2. Car air conditioning: The air conditioning device used in motor vehicles is the car's AC, which can adjust the temperature inside the vehicle cabin to a suitable state, providing a comfortable environment for passengers, reducing travel fatigue, and creating good working conditions for the driver.
I've also experienced unbalanced high and low pressure in the car AC system before. When the high pressure is normal but the low pressure is too high, it usually indicates either overcharged refrigerant or a blockage in the expansion valve, which reduces compressor efficiency. During summer, weak airflow and increased fuel consumption from the AC can be quite annoying. I suggest first doing a simple check for loose connections in the AC piping or dirt clogging the condenser fan. If that doesn't help, visit a professional repair shop promptly to recalibrate refrigerant levels with pressure gauges, avoiding blind refrigerant top-ups that could cause bigger issues. Regular maintenance like cleaning the AC filter can prevent similar faults, as AC malfunctions significantly impact driving comfort and fuel efficiency.
