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Why does the car air conditioner alternate between cooling and natural wind?

1 Answers

MacTanner

07/29/25 9:56pm

The air conditioner alternates between cool air and natural wind depending on whether the compressor is working. The compressor produces cool air when it is working, and natural wind when it is not. Here is the relevant information: 1. Reasons why the compressor is not working: The compressor load is too high, causing the overcurrent protector to trip and power off. The mainboard control is faulty, intermittently starting the compressor. Air in the system is not completely discharged, causing excessively high pressure, which triggers the high-pressure protector and shuts down. 2. Reasons for abnormal air output from the air conditioner: The automatic mode might be turned on. When the set temperature is close to the room temperature, the air conditioner shuts down upon reaching the set temperature, creating a false impression of malfunction where it turns off shortly after starting. In reality, the air conditioner is not faulty. The voltage is abnormal or unstable. The compressor's overcurrent protection is triggered. It is recommended to try replacing the voltage regulator. The indoor coil temperature is too high, causing protective shutdown. When the indoor temperature is 26 degrees and the outdoor temperature is above 20 degrees, the air conditioner cannot heat normally, easily leading to protective shutdown.

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