What Causes Frequent Tripping of the Car Compressor?
2 Answers
Frequent tripping of the car compressor is due to compressor protection faults. Below are specific introductions to the forms of air conditioning compressor protection: 1. Overheating protection: The system runs for a long time after being low on refrigerant; the system has a blockage (ice blockage or dirt blockage) and runs for a long time; the ambient temperature is too high; the compressor's overheating protection device is faulty. As long as the compressor's temperature decreases, it can start. Generally, you can pour water on the compressor for rapid cooling and then investigate the cause of the protection. 2. Overcooling protection: The ambient temperature is extremely low (below -15 degrees Celsius). 3. Overcurrent protection: The voltage is too low; the compressor itself is faulty.
I've also encountered the issue of the car's air conditioning compressor frequently tripping several times, and there are usually multiple reasons for this. The most common cause is insufficient refrigerant or a leak, which leads to excessively high or low system pressure, triggering the protection mechanism to shut down. Poor heat dissipation is another factor—for example, if the condenser is too dirty or blocked, or if the fan isn't working, the compressor will overheat and protect itself. Electrical issues can also be to blame, such as a faulty pressure switch, a burned-out relay, poor wiring connections, or unstable voltage, all of which can cause frequent tripping. Additionally, a loose or worn belt may overload the compressor. I recommend starting with simple checks, like inspecting the refrigerant pressure and heat dissipation. If you're not familiar with these tasks, it's best to take the car to a professional repair shop as soon as possible to avoid discomfort and safety risks during hot weather. I've found that regular cleaning of the air conditioning system can effectively prevent such problems—getting it checked about every six months can save a lot of trouble.
