What are the consequences of turning on the car air conditioning without starting the engine?
1 Answers
Turning on the car air conditioning without starting the engine can result in the compressor not working, battery depletion, and automatic power-off after engine shutdown. Compressor not working: The air blown by the air conditioning is just natural air from the blower, because the air conditioning compressor is driven by the engine's power. When the car is off, the compressor naturally stops working. Battery depletion: The natural air blown by the blower is powered by the car battery. Eventually, the blower may consume too much power from the battery, potentially leading to long-term battery depletion. Automatic power-off after engine shutdown: Cars have interlock mechanisms that automatically cut off most auxiliary circuits after the engine is shut down, including the air conditioning and blower. Precautions: Leaving the air conditioning on for a long time without starting the engine can drain the car battery. In mild cases, the car may not start, and in severe cases, it can cause the battery to remain in a depleted state for a long time. This applies only to traditional fuel-powered cars; new energy vehicles do not experience this issue. Not turning off the air conditioning after shutting down the car can have a significant impact on the vehicle.
