Why is the car air conditioning cooling slower?

1 Answers
OViolet
07/24/25 7:13pm
There are several reasons why car air conditioning cools slower: 1. Insufficient refrigerant due to low refrigerant levels: The main cause of insufficient refrigerant is usually minor leaks in the system. If there is not enough refrigerant in the air conditioning system, the amount of refrigerant sprayed into the evaporator from the expansion valve will also decrease. As a result, when the refrigerant evaporates in the evaporator, the amount of heat absorbed will decrease, leading to reduced cooling capacity. 2. Moisture infiltration in the air conditioning refrigeration system causing insufficient cooling: There is a component in the refrigeration system called the dryer (or receiver-drier), one of its main functions is to absorb moisture from the refrigerant to prevent excessive moisture in the refrigerant from reducing cooling capacity.
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