Why does the car air conditioning cool in the morning and evening but not at noon?
1 Answers
The reasons for the car air conditioning cooling in the morning and evening but not at noon are: first, the air filter is dirty; second, the condenser is dirty. The following are detailed explanations and solutions: 1. The simplest way to determine if there is a cooling problem is to measure the temperature at the air outlet. A temperature around 10°C is normal, but it varies significantly between different cars. Some cars can reach around 4°C, while others may only reach 8-9°C. 2. The air filter is dirty. A dirty filter leads to insufficient airflow. Even if the blower is set to a high speed and sounds loud, the actual amount of air blown out is minimal. Although the air is cool enough, the low volume of air can still cause the cabin temperature to remain high. 3. The air conditioning lacks refrigerant or the condenser is blocked. If the pressure is too low when the air conditioning is off and remains low when turned on, it indicates a refrigerant shortage, which can be resolved by recharging the refrigerant. If the pressure is normal, then a blocked condenser should be considered. In such cases, flushing is required. If the blockage is not severe, it can be resolved by simply rinsing with a water gun during car washing. Only severe blockages require disassembly and cleaning.
