What are the effects of not turning off the air conditioning when the car is turned off?

1 Answers
AaliyahLee
07/30/25 12:37am
The effects of not turning off the air conditioning when the car is turned off are: 1. It can cause odors when the air conditioning is turned on, which can only be resolved by disassembling and cleaning the evaporator box and air conditioning duct pipes; 2. During the next startup, it will rotate together with the compressor, increasing the load on the motor. When running the air conditioning in summer, the air conditioning system is in a cooling state, forming surface moisture that is blown into the air conditioning ducts by the air conditioning, leading to high humidity inside the ducts and the proliferation of mold, which in turn causes air conditioning odors. The correct method of operating the air conditioning is: Turn off the air conditioning switch a few minutes before the engine is turned off, but allow the fan to continue running. This helps the temperature inside the air conditioning evaporator box and ducts to rise, evaporating the moisture inside and keeping the air conditioning system relatively dry, thus preventing mold growth.
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