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What is the reason for the malfunction of the Haval H3 air conditioning buttons?

2 Answers

StAdelyn

07/29/25 8:54pm

The reason for the malfunction of the Haval H3 air conditioning buttons: It may be due to issues with the wiring between the relay and the computer board. It is necessary to go to a repair shop for inspection and replacement. The concept and function of car air conditioning: The car air conditioning device (air-conditioning-device), referred to as car air conditioning, is used to adjust and control the temperature, humidity, air cleanliness, and air flow inside the car compartment to the optimal state. It provides a comfortable riding environment for the driver, reducing travel fatigue, and creates good working conditions for the driver, ensuring driving safety. How car air conditioning works: When the weather is hot and air conditioning is needed to cool down, pressing the AC button activates the compressor system to start working normally, and cold air will blow out from the vents.

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VanVivienne

08/15/25 6:38pm

With years of experience in car repair, I've found that AC button malfunctions are often caused by signal interruptions due to oxidized contacts or dust accumulation. In models like the Haval H3, this issue typically stems from wear and tear or rusting of the small metal tabs inside the buttons due to prolonged use or moisture exposure. I recommend first removing the control panel to inspect the button contacts, gently cleaning them with alcohol swabs. If the buttons show no response when pressed, it might be due to loose wiring connections or a faulty control board, requiring a multimeter to test the circuit. Additionally, system software can occasionally crash due to voltage fluctuations, so try turning the vehicle off and restarting it. For prevention, regular interior cleaning to keep dust out can reduce failure rates. Addressing the issue early is crucial to avoid affecting AC performance, especially during hot weather when cabin comfort is paramount.

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