What are the reasons for the air conditioning not cooling in new energy vehicles?
2 Answers
The reasons for the air conditioning not cooling in new energy vehicles include: lack of refrigerant. Below are the relevant details: Lack of refrigerant: The most common reason for reduced cooling capacity is the natural depletion of refrigerant. The vehicle's air conditioning system consists of numerous metal pipes, and there are tiny gaps between the connections of these pipes. Therefore, strictly speaking, the refrigerant ("Freon") in the air conditioning system does leak, though the leakage is usually minimal. Diagnosis: The refrigerant level in the air conditioning system can be determined by checking the pressure in the high and low-pressure pipes when the air conditioning is in cooling mode. The high and low-pressure inspection pipes are located in the engine compartment and can be checked using a specialized pressure gauge. When the air conditioning system is operating, the pressure in the high-pressure pipe should be around 12.5 bar, and the pressure in the low-pressure pipe should be between 1.5-2.5 bar.
I recently drove my electric car, and the air conditioning suddenly stopped cooling, which was really annoying. I remember it was a scorching day, and after starting the car, there was no cold air at all. At first, I thought it was due to the high outside temperature, but even after waiting for a long time, it still didn’t work. After checking, I suspected it might be a refrigerant leak, and the compressor was also questionable because electric cars rely on electricity to power the compressor. If the battery level is too low or the compressor motor is faulty, the air conditioning just stops working. I quickly went to the repair shop, and the mechanic said many new energy vehicles have this issue—poor electrical contact or blown fuses are quite common. Additionally, if the battery management system detects low battery levels, it may restrict the air conditioning to ensure driving performance. After the repair, replacing a fuse fixed the issue. I recommend everyone regularly check the cooling system and battery status to avoid panicking when problems arise on hot days.
