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Thermal induction realizes the speed of the fan. When the engine is hot, the thermal sensor/thermistor/sub-sensitive resistor connected to the fan, the resistance value becomes smaller, the fan power increases, and the opposite happens when the engine becomes cold, so the control of the fan is realized. speed.
Si vous souhaitez toujours contrôler manuellement le ventilateur, vous pouvez également connecter une résistance réglable en série avec le circuit du ventilateur pour atteindre l'objectif de contrôler automatiquement le ventilateur.
One of the fans in your problem is faulty. Check the other fan. The thermistor/sub-sensitive resistor inside the fan may fail. You can use a conductor to directly short the thermistor to see if it is on in high turn. If in the description this thermistor / sub-sensitive resistor burned out. You can change a resistor of the same type, or if you don't think the fan is loud, you might as well short-circuit the thermistor/sub-sensitivity directly.
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