What Causes Excessive Pressure in Car Air Conditioning?
1 Answers
The car air conditioning system is a device that cools, heats, ventilates, and purifies the air inside the vehicle, providing a comfortable environment for passengers, reducing driver fatigue, and improving driving safety. The reasons for excessive pressure in the car air conditioning system are as follows: 1. Cooling water: Insufficient cooling water flow or excessively high water temperature. 2. Condenser tube: Excessive dirt buildup or blockage in the condenser copper tubes or fins, leading to poor heat exchange efficiency. 3. Excessive refrigerant: This is indicated by a hot feeling at the exhaust outlet. 4. Air in the system: If there is air in the system, the refrigerant should be completely evacuated and refilled. 5. Expansion valve: A malfunctioning expansion valve is indicated by heavy condensation or frost on the low-pressure pipe. Check if the expansion valve is installed correctly, and if it is, the expansion valve needs to be replaced.