What to Do When the Car AC Keeps Turning Off Automatically?
2 Answers
Check if the timer switch option on the AC remote control is turned on. If so, please turn it off. Check if the remote control is in sleep mode, where it will automatically turn off when the temperature reaches the adjusted setting. Switch this mode back to normal mode. The issue might be due to poor contact between the pins and sockets of the AC pipeline. Try unplugging the AC switch and inserting it into other pins to see if it still turns off automatically.
I've also encountered the issue of the AC suddenly turning off while driving, and usually, the cause can be traced to a few areas. The most common reason is the system's self-protection mechanism kicking in, such as the compressor overheating or insufficient refrigerant causing excessive pressure and automatic shutdown. You can check the refrigerant level before starting to see if there's a leak. Another possibility is an electrical issue, like a blown fuse or a malfunctioning control module. I once used a multimeter to measure the voltage and found it fluctuating. A dirty and clogged air filter can also cause the system to shut down automatically. I cleaned the filter myself once, and it improved significantly. If these simple checks don't resolve the issue, it's best to take it to a professional repair shop to use a diagnostic tool to check the ECU data logs. Sometimes, it's due to aging sensors misreading temperature signals. If it happens while driving, immediately open the windows for ventilation to prevent danger. Ignoring it long-term can affect the AC's lifespan and even increase fuel consumption.
