What are the reasons for poor air conditioning cooling effect in the VV5?
2 Answers
The reasons for the poor air conditioning cooling effect in the VV5 are as follows: 1. Damaged expansion valve: This prevents the formation of high pressure in the system before the expansion valve, and the high-pressure refrigerant cannot reach the pressure of 150Kpa, resulting in the evaporator behind the expansion valve failing to cool down, leading to poor air conditioning performance. 2. Internal wear of the air conditioning compressor: This causes the pressure between the air conditioning compressor and the expansion valve to fail to reach 150Kpa to 200Kpa, preventing the normal circulation of refrigerant in the system and resulting in poor air conditioning performance. 3. Refrigerant leakage: If there is too little refrigerant in the air conditioning system, the amount of refrigerant sprayed into the evaporator from the expansion valve will also decrease. Consequently, when the refrigerant evaporates in the evaporator, the amount of heat absorbed will decrease, leading to a reduction in cooling capacity.
I've been driving the VV5 for several years, and the issue of weak air conditioning is quite common. It could be due to insufficient refrigerant, system leaks causing low pressure; the air filter being clogged with dust, blocking the air intake and preventing airflow; or slow fan speed or a faulty compressor leading to no cooling. Last summer, my car was unbearably hot, and after inspection, I found the filter hadn't been replaced for too long and was extremely dirty. It's recommended to replace the filter and check refrigerant pressure during regular maintenance. If the problem is severe, visit a professional repair shop—don't skimp on small expenses, safety comes first. Malfunctioning air conditioning during long drives can be dangerous, so early intervention saves a lot of hassle. I've learned my lesson and now clean it quarterly, which has improved performance significantly.
