What are the causes of car air conditioning malfunctions?

1 Answers
OMiguel
07/30/25 2:51am
Car air conditioning malfunctions can be caused by issues with the power supply, temperature, heat exchanger, and other components. The specific reasons are as follows: 1. No power connection: The air conditioning may not blow air because it is not properly connected to the power source. In this case, check whether the plug is loose or if the remote control is malfunctioning. If the plug is loose or the remote control is not working, the air conditioning will not blow air. 2. Low heat exchanger temperature: The air conditioning may not blow air because the temperature of the indoor heating exchanger is too low. When using the air conditioning for heating in winter, if the temperature of the indoor heating exchanger is too low, the air conditioning will automatically stop blowing air to prevent cold air from being emitted. 3. Frost formation on the heat exchanger: The air conditioning may not blow air because the outdoor heat exchanger has frost buildup. When using the air conditioning for heating in winter, if the indoor temperature is too low or the humidity is too high, the outdoor heat exchanger may accumulate a large amount of frost. In this case, the air conditioning will automatically activate the defrost function, and the indoor unit will naturally stop blowing air.
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