How is it that the temperature drops in hot weather and the air conditioner in the car is cool?

This is because there are too many refrigerants in the air conditioner, which will aggravate the increase of internal pressure in hot weather. If the pressure is too high, the system will not work and some pressure will be released properly. Other reasons are as follows: 1, the set temperature is too high, and the air conditioner stops frequently: the cooling effect is poor for a while. This is not a malfunction. Please don't worry. Turn down the temperature. 2. The outdoor unit of the air conditioner has poor heat dissipation: the compressor of the air conditioner is easy to overheat if the heat dissipation is not good for a long time. It is recommended to clean the external unit. 3. The air-conditioning power supply voltage is too low: the air-conditioning compressor cannot be started normally. In this case, a voltage regulator can be installed to solve the problem.