What Causes One Side of the Car Air Conditioner to Cool While the Other Side Doesn't?
2 Answers
This is caused by insufficient refrigerant in the air conditioning system. Use a pressure gauge to check if the system pressure is normal, with the low pressure around 2.5 par and the high pressure around 15 par. Below is relevant information: 1. Introduction: A car air conditioner refers to the air conditioning device installed in a vehicle, capable of cooling, heating, ventilating, and purifying the air inside the cabin. It provides a comfortable environment for passengers, reduces driver fatigue, and enhances driving safety. The air conditioning system has become one of the indicators to measure whether a car is fully equipped. 2. Components: The car air conditioning refrigeration system consists of a compressor, condenser, receiver-drier, expansion valve, evaporator, and blower. These components are connected by copper pipes (or aluminum pipes) and high-pressure rubber hoses to form a sealed system.
Last time I was driving, I noticed the left side of the AC was blowing cold air while the right side was warm. The mechanic said it could be due to partial freezing or blockage in the evaporator. The cold air from the car's AC comes through the evaporator, and if there's debris like leaves or dust buildup inside, the cold air won't reach one side. The air duct flaps might also be stuck, preventing proper air distribution. This is especially annoying in summer—within minutes of driving, you're drenched in sweat, which leads to fatigue and distraction. I recommend checking the AC filter first; replace it if it's too dirty. If that doesn't help, you'll need to visit a professional shop to clean the evaporator or adjust the air ducts. For older cars, watch out for refrigerant leaks—maintaining the system's balance is crucial. Get it fixed promptly to drive with peace of mind.
