What could be the reason for a car's air conditioning suddenly not responding?

2 Answers
LaSadie
07/29/25 3:01am
The reasons for a car's air conditioning suddenly not responding include: 1. Damaged compressor clutch; 2. Malfunctions in the compressor, blower, or electrical circuits. The functions of a car's air conditioning system are: 1. To regulate and control the temperature, humidity, air cleanliness, and air flow within the cabin to an optimal state; 2. To provide a comfortable riding environment for passengers, reducing travel fatigue; 3. To create favorable working conditions for the driver, ensuring driving safety. The components of a car's air conditioning system are: compressor, electronically controlled clutch, condenser, evaporator, expansion valve, liquid storage dryer, piping, condenser fan, vacuum solenoid valve, and idle speed controller.
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McKate
08/12/25 6:54am
Last time I was driving, the air conditioning suddenly stopped working, which scared me so much that I immediately pulled over to check. There are several common reasons for this: the AC compressor might have failed—if you don't hear a 'click' sound when turning on the AC, be alert; blown fuses are common, especially in summer when high temperatures cause excessive current; running out of refrigerant can make the compressor stop working; poor wiring connections are also frequent, like loose plugs or aging circuits. Once the AC fails, don't push it—turn it off and try again. If the fan also stops, it's likely an electrical issue. It's advisable to keep a spare fuse in the car for emergencies—just replace it when needed. For regular maintenance, clean the condenser to prevent dust buildup from affecting heat dissipation. In short, safety first—check the AC before heading out in the summer heat to avoid suffering on the road.
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