What causes the air conditioning in the Haval H6 to not cool properly?

[Eloise]

Lack of refrigerant, air flocs, leaves and other debris attached to the air conditioning condenser and radiator, or a loose compressor drive belt. Causes: Refrigerant loss is mainly due to leakage; a dirty condenser. The air conditioning condenser and radiator are located at the front of the vehicle. When the vehicle is moving, air enters through the central intake grille, and debris such as air flocs and leaves can attach to the air conditioning condenser and radiator. A loose air conditioning compressor drive belt can cause slippage during operation, reducing transmission efficiency, lowering the compressor's speed, and decreasing the refrigerant delivery, which directly reduces the cooling capacity of the air conditioning system. Additional checks: Check if the vehicle's cooling system has been cleaned; inspect if the air filter is clogged with dust or foreign objects; check for blower motor faults or damage.