What happens when I turn on the AC without turning the car engine on and keeps it running for a while?
The short answer is: your car's battery will drain. Your car's air conditioning (AC) system runs off of the car's engine. When you turn on the AC, the engine's compressor kicks in to circulate refrigerant throughout the system. This process requires a lot of power, which is why your car's AC can only be used when the engine is running.
If you turn on the AC without turning on the engine, the compressor will still try to run, but it won't be able to because there's no power from the engine. This will cause the battery to drain, and eventually your car will die.
It's important to note that even if you just leave the AC on for a short period of time without turning on the engine, it can still drain the battery. This is because the compressor will still try to run even if the AC is not blowing cold air.
So, to avoid draining your battery, only turn on the AC when the engine is running.
Related questions:
- What will happen if I leave the AC on overnight?
- Can I leave the AC on while I'm driving?
- Why does my AC not work when I'm idling?
- How can I tell if my AC is draining my battery?
- What should I do if my car battery dies because of the AC?
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