Why is the air conditioning cooling effect of a small car not good?
2 Answers
The reasons for poor air conditioning cooling effect include insufficient Freon and insufficient power supply voltage. The following are specific explanations: 1. Insufficient Freon: This is a normal situation. The air conditioner does not completely fail to cool, but the cooling effect is not good enough. This is because old air conditioners use Freon as a refrigerant, which will evaporate after long-term use. 2. Insufficient power supply voltage: The normal starting voltage of an air conditioner is about 220V. In China's power supply system with a voltage of 220V and a line voltage of 380V, almost all compressors can start above 200V. If the poor cooling of the air conditioner is caused by this situation, the power supply should be checked. If the grid voltage is too low, users should install a power voltage regulator to make the voltage reach 220V, so that the air conditioner can be used normally.
It's really annoying when the car AC doesn't cool down even after running for a long time in summer. Most likely it's due to insufficient refrigerant - refrigerant leaks are the most common issue, check if there are oil stains at the connections. If the compressor is making clicking noises and not working, you'll notice it from the sound. A clogged cabin air filter affects airflow and needs replacement - this is something you can do yourself regularly to save money. If the fan isn't spinning, the heat dissipation won't work properly - feel if the external unit is hot. Another easily overlooked issue is a dirty condenser - rinse it when washing your car, otherwise heat dissipation efficiency drops. Extremely hot weather or parking under direct sunlight for too long isn't ideal either - using sunshades in advance helps with insulation. If nothing works, go to a professional shop immediately for inspection - don't delay as driving sweaty in hot weather poses risks.
