Why Can't Refrigerant Be Added to the Car Air Conditioner?

[MadelineFitz]

The reasons why refrigerant cannot be added to the car air conditioner, whether at high or low pressure, are as follows: 1. Blocked connection: If high and low pressure readings can be observed, it indicates that the issue of blocked high and low pressure pipe connections can be ruled out. 2. Compressor damage: If the low-pressure side is high and the high-pressure side is low, it may indicate compressor damage. In such cases, refrigerant cannot be added. The most common symptom of a dirty or blocked expansion valve is frosting. 3. Poor heat dissipation: If the opening is small, the low-pressure pipe will not feel very cold when touched by hand. If the opening is large, the low-pressure pipe will feel very cold. Additionally, a dirty condenser causing poor heat dissipation or a failed dryer bottle can also lead to this phenomenon.