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2024

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Do I have to turn off the air conditioning before parking?

Source:

Wondee Autoparts


Many people say that when parking, the air conditioning should be turned off, otherwise the next time you drive, the air conditioning will be turned on, and the load will be too high, affecting the engine's lifespan. Is that really the case? Today we will talk about the timing of turning off the air conditioning.

Many people say that when parking, the air conditioning should be turned off, otherwise the next time you drive, the air conditioning will be turned on, and the load will be too high, affecting the engine's lifespan. Is that really the case? Today we will talk about the timing of turning off the air conditioning.

       turn off the air conditioning (1)

   Not turning off the air conditioning has no effect on the engine. Firstly, the vehicle will not rotate with the compressor during startup, which will not add unnecessary load to the starter motor. Because when the vehicle starts, almost all electrical appliances in the vehicle are in a power-off state, and all current and voltage are concentrated on the starter motor. There is also no electricity at the air conditioning panel, and the compressor will not start naturally. After the vehicle starts, the compressor will start working in about three to five seconds. A compressor with an electromagnetic clutch can hear a popping sound, which is the sound of the compressor being engaged.

       turn off the air conditioning (2)

  Some people say that starting work at this time while the car is still in a cold state, applying such a heavy load to the engine from the compressor will increase engine wear. In fact, this won't happen either. In summer, the temperature itself is relatively high, and the temperature of the engine itself can reach at least 20 degrees. If it is under the sun, the temperature will be even higher. Although just starting a fire can be considered a cold car, the temperature is not low, at least equivalent to the temperature two minutes after warming up the car in winter. Opening the air conditioning compressor at this time does not affect it. In fact, even in the low temperature of winter, as long as you don't forcefully hit the accelerator and only turn on the compressor, it has almost no effect. So it's not necessary to turn off the air conditioning when parking, as it has no impact on the engine.

       turn off the air conditioning (3)

Not turning off the air conditioning has no effect on the engine, but it has a slight impact on the evaporator. If the air conditioning is not turned off in advance, there will always be water on the evaporator. The evaporator is stored in a closed box, and it is difficult to let water naturally evaporate, which requires a long time. Due to the dark and humid environment of the evaporator, over time, mold can grow, produce odors, and even affect physical health. Therefore, in order to avoid premature odor, try to turn off the AC switch two to three minutes before reaching the destination, but keep the fan switch on and continue blowing air to dry the evaporator box. Of course, it doesn't matter if you don't do it, because sometimes you forget to turn it off. If there is an odor, you can clean the evaporator box. Cleaning is not complicated and the cost is not high. You can buy a bottle of cleaning agent and wash it yourself. After washing, there will be no odor.

       turn off the air conditioning (4)

     Turning off the air conditioning before parking has another benefit, which can reduce the number of compressor operations. Because the next time you drive, it may be in the morning or evening, and you don't necessarily need to use the air conditioning. If the air conditioning is not turned off, the vehicle will definitely continue to work after it catches fire, and it needs to be turned off again at this time. Extra suction work was done on the compressor once, and a few extra works didn't have much impact, but doing so every day adds up to more times, which will inevitably have a slight impact on the lifespan of the compressor. Of course, if you just need to drive and turn on the air conditioning, you can keep it on. To sum up, the impact of parking without turning off the air conditioning is not significant. Whether to turn it off or not depends on one's own operating habits and preferences. It's best to turn it off if you can think of it, and it's okay to forget to turn it off. The impact is also very small or insignificant.

 

From: WONDEE Autoparts 2024-1-11

truck,trailer,air conditioning