Why Can't Refrigerant Be Added to the Car Air Conditioner?
2 Answers
Reasons why refrigerant cannot be added to the car air conditioner: If the operation method is correct and pressure tests as well as vacuum extraction have been performed, the inability to add refrigerant may be due to system blockage, a clogged dryer, or compressor failure. Various reasons why refrigerant cannot be added to the high or low pressure sides of the car air conditioner: 1. If high and low pressure readings are visible, it indicates that the issue of blocked high and low pressure pipe connections can be ruled out. 2. If the low pressure side is high and the high pressure side is low, it may indicate compressor damage. 3. A dirty condenser with poor heat dissipation and a failed dryer bottle can also cause this phenomenon.
As an enthusiast who often tinkers with cars, I've encountered situations where refrigerant couldn't be properly charged. The most common reason might be leaks in the system, such as aging seals or loose pipes causing gas leakage, preventing system pressure from building up and making refrigerant charging impossible. Additionally, if the compressor isn't working and the AC isn't turned on, it won't be able to draw in the refrigerant. When adding refrigerant, make sure the engine is running and set the AC to the cold air setting to get the compressor working. High temperatures can also affect refrigerant flow, so it's best to choose cooler weather for the operation. I've used pressure gauges several times - if the needle doesn't move or shows too low pressure, it might indicate serious leakage requiring repair first. Poor equipment connection during DIY charging can also be problematic; loose hoses or unopened valves can cause blockage. Regular inspection of AC lines and charging points can prevent such headaches - don't force pressurization to avoid pipe bursts making things worse. If there's air or debris trapped inside, vacuuming should be done first before proceeding, otherwise it's wasted effort. My advice is to handle simple issues yourself but leave complex problems to professionals - safety first.
