Why is the car air conditioning compressor not working?

[StPeter]

Reasons why the car air conditioning compressor is not working: 1. A fault in the circuit system can prevent the car air conditioning compressor from functioning effectively. If this is the case, the owner can check whether the circuit is unobstructed and inspect the temperature sensor solenoid valve. 2. There is a refrigerant leak, and without cold air to compress or transport, the air conditioning compressor will not operate normally. 3. Severe internal wear of the compressor makes it impossible for it to function properly. 4. Loose plugs in the air conditioning compressor control circuit can cause poor contact, resulting in reduced voltage and unstable current supply to the solenoid coil, leading to intermittent engagement and disengagement of the air conditioning compressor's electromagnetic clutch.

[GabrielaLee]

Last time I was driving, the air conditioning suddenly stopped cooling, and the compressor wouldn't engage at all. It got really hot. There could be several possible reasons: First, the refrigerant might be insufficient. If the pressure in the AC system is too low, the compressor will engage in self-protection and not start. Second, there could be an electrical issue, such as a blown fuse or a faulty relay. Third, the clutch might be malfunctioning, as the compressor relies on it to connect and drive. It's recommended to first check the fuse box and replace any blown fuses. If that doesn't work, measure the refrigerant pressure or check if the belt is loose. Regular maintenance of the air conditioning can prevent such issues, saving you from suffering during long summer trips. If the compressor is broken and not repaired, it can also affect the overall electrical system of the car, potentially increasing fuel consumption.

[GenevieveFitz]

As a hands-on car enthusiast, I often ponder why the compressor stops working. The compressor acts like the engine's deputy, relying on electric power to circulate the refrigerant. The most common reasons for failure are insufficient pressure due to refrigerant leaks, electrical issues such as switch malfunctions, short circuits, or module damage, or mechanical jams. Try removing the AC panel to check if the signal light is on for a preliminary electrical diagnosis. Always pay attention to unusual smells or noises while driving to catch problems early. The AC system is delicate—neglecting it can lead to soaring repair costs and compromised comfort.

[Cheyenne]

A malfunctioning air conditioning compressor can be a real headache, especially in summer. Common causes include low refrigerant levels triggering a safety lock, a blown fuse which is easy to replace, or a faulty pressure sensor. The check method is simple: start the engine, turn on the AC, and listen for a humming sound from the compressor. If there's no sound, inspect the electrical circuit. Immediate repair is essential, as prolonged driving fatigue from heat can lead to accidents. It's recommended to take the vehicle to a professional shop for diagnosis as soon as possible.