What are the reasons for the Kia K2 air conditioner not cooling?

[KinsleyLee]

Kia K2 air conditioner not cooling reasons are insufficient or lack of refrigerant, excessive refrigerant, looseness of the car air conditioner compressor drive belt. Below are the specific reasons: Insufficient or lack of refrigerant: The common reason for a car air conditioner not cooling is insufficient or lack of refrigerant, which is likely caused by micro-leakage. Excessive refrigerant: There is a required volume ratio for refrigerant in the air conditioning system. If the ratio is too large, it will affect heat dissipation. Similarly, if too much refrigeration oil is added during maintenance, it will also reduce the heat dissipation of the refrigeration system. Looseness of the car air conditioner compressor drive belt: Automotive refrigerant and refrigerant delivery rely on the air conditioner compressor, and the drive belt is an important moving part that drives the air conditioner compressor. If the drive belt is loose, the compressor will slip during operation, leading to reduced transmission efficiency, decreased compressor speed, and reduced compressed refrigerant delivery, resulting in the car air conditioner not cooling.