What are the issues with high pressure in car air conditioning?
2 Answers
There are many reasons for high pressure in car air conditioning: 1. Excessive refrigerant: Release some or all of the refrigerant and refill it; 2. Excessive lubricating oil: Release all the refrigerant, use a machine to extract the excess lubricating oil, and refill the refrigerant; 3. Poor condenser heat dissipation: Clean the surface dirt and pipes of the condenser, check the cooling fan to see if it operates at high speed; 4. The expansion valve or expansion tube opening is too small: Replace the expansion valve or expansion tube, thoroughly clean the air conditioning pipes, and replace the dryer bottle if present. Car air conditioning refers to the air conditioning device installed in a car, which can cool, heat, ventilate, and purify the air inside the cabin. Car air conditioning generally includes refrigeration devices, heating devices, and ventilation devices.
Last time I drove, the air conditioning was cooling poorly. Upon inspection, I found the high pressure was alarmingly high, possibly due to overcharged refrigerant or a clogged expansion valve. A non-functioning cooling fan could also cause this. High pressure leads to a surge in gauge readings, causing the compressor to work overloaded, which can easily burn out the engine and even cause high-pressure pipes to burst. I suggest turning off the AC immediately and seeking a professional shop to check with a pressure gauge. Replace the refrigerant if needed and clean any dirt from the radiator fins. Be extra cautious during hot summer days as high pressure increases fuel consumption and can lead to costly repairs.
