What Causes the Inability to Add Refrigerant to a Car's Air Conditioning System?
1 Answers
Car air conditioning systems may fail to accept refrigerant primarily due to compressor malfunction or excessive internal pipeline pressure, preventing refrigerant injection. In such cases, it's necessary to visit a 4S dealership for diagnostics to pinpoint and repair the specific fault. Additional details regarding car AC refrigerant recharge are as follows: 1. Procedure for adding refrigerant: Begin with pressure testing, followed by pressure retention checks. Upon confirming no leaks and stable pressure, proceed with vacuum extraction before refrigerant charging. 2. Precautions during refrigerant charging: Always start the vehicle and activate the AC system before charging. Refrigerant should typically be introduced through the low-pressure port while ensuring the high-pressure gauge connection remains securely tightened.