Principle of Three Wires in Automotive Electric Fan?

[Gertrude]

Automotive electric fan three-wire principle is controlled by a thermostat. When the water temperature rises to the upper limit, the thermostat turns on the power, and the fan operates. When the water temperature drops to the lower limit, the thermostat turns off the power, and the fan stops working. Below is a specific introduction to the reasons why an automotive electric fan may not rotate: 1. Poor motor lubrication: This causes the motor to be unable to drive the fan blades after installation. 2. Motor overheating: Overheating can also reduce the motor's load-bearing capacity, decrease its effective power, and result in the inability to drive the load. 3. Prolonged motor usage: Extended use of the motor, such as in an electric fan, can lead to motor wear. If the motor's shaft sleeve wears out, it can easily burn out. Long-term use of the motor can also increase its internal resistance, reduce its load-bearing capacity, and result in the inability to rotate the fan blades.