Whether the fan is running normally, the electric fan will not turn, how to check is the problem

There are many types of computer fans, including CPU fans, graphics card fans, power supply fans, case cooling fans, etc. It is recommended to clean the main engine of the computer every month, the fan is the main part, because the fan blades will be attached to the dust for a long time, so that the rotating load of the blades increases, and the planned cleaning of the main chassis can effectively extend the service life of the hardware, and the same is true for the fan. If there is no effect, it is recommended to replace it in time, so as not to lose a lot of money, and then damage the hardware

It's not harmful, it's just that the fan has been used for a long time, as long as it doesn't crash, it's fine, and the electric fan at home doesn't have oil for a long time, and it sounds They are a truth.

It is related to the water temperature, and the cooling fan in front of the engine will not turn until the water temperature reaches the set value. When the water temperature reaches more than 90 degrees (about this value, I don't know yet), the thermostat is open, and the coolant enters the large circulation mode of cooling the cooling tank.

Wash it, add some oil, the oil should not be too thick, use sewing machine oil or spindle oil.

There are four main reasons why the electric fan will not turn: one is too much dust, the second is the fault of the control loop, the third is the failure of the motor starting capacitor, and the fourth is the fault of the motor winding.

1. Too much dust.

When there is too much dust accumulated in the electric fan, such as the fan shaft is involved in hair and other debris, the bearing is seriously short of oil, etc., the normal rotation of the electric fan will be affected, and in serious cases, it may not rotate.

Maintenance method: disassemble the electric fan, take out the motor, open the motor end cover, gently pull out the rotor, there are two front and rear bearings, and drop a few drops of lubrication into the bearing.

2. Control loop failure.

When the control loop of the electric fan is faulty, the electric fan will also not rotate.

Maintenance method: power off, use a multimeter to measure the control loop of the fan on and off or resistance, focus on checking the plugs, speed switches and other components in the circuit, and check the accessories such as fan speed switches, protection resistors, plugs and other accessories for the fans, and replace them with new accessories.

3. Motor starting capacitor failure.

When the starting capacitor of the electric fan fails, the motor cannot start normally, and the electric fan will naturally not be able to rotate.

Maintenance method: Measure the fan capacitance with the capacitance file of the multimeter, compare the actual measured value of the capacitor with the rated value of the capacitance, and judge the quality of the starting capacitance. Or use the resistance level of the multimeter to judge the quality of the capacitor.

Note: When measuring the capacitance with the capacitor file, short the positive and negative ends of the capacitor for full discharge before measuring, and then measure.

4. Motor winding failure.

When the motor winding of the fan is faulty, the motor cannot start normally, and the electric fan will not rotate.

Maintenance method: replace the motor of the same type or rewind the motor.

Introduction to Electric Fans:

Electric fan, also known as fan and fan, is a household appliance that uses an electric motor to drive the fan blades to rotate to accelerate the circulation of air, mainly used to cool off the heat and circulate the air. It is widely used in homes, classrooms, offices, shops, hospitals and hotels.

Common household fans are essentially axial fans, i.e., the direction of the wind is parallel to the axis of rotation of the fan blades.

In the case of normal power supply, 1. First of all, you can check the starting capacitance of the fan, if the capacitor capacity is reduced or fails, it will cause the fan to not rotate, or not to rotate, you can replace it with a new one;

2. Check whether the fan motor shaft is stuck, generally due to lack of oil, add 5 6 drops of engine oil or sewing oil to make it lubricated and flexible;

After the above 2 are done, or do not turn, generally the motor winding is broken, you can change a motor, the motor is not very expensive, more than 20 yuan to about 50 yuan.

Check whether the blades rotate flexibly. Whether the voltage is normal. Whether the power switch is damaged.

Generally on the motor, or capacitor problem.

According to the meaning of translation and rotation, it can be seen that the rotation of the electric fan belongs to the phenomenon of rotation

In today's life, many people have bought air conditioners, as an electrical appliance that can adjust the temperature and make people feel cool, air conditioners are welcomed and loved by many people. But when you use the air conditioner, you often encounter a situation, that is, the air conditioning fan has been spinning, and the following will introduce the reasons for this.

1. What is the reason why the fan keeps turning?

1. First of all, it may be because the air conditioner is adjusted to automatic mode, in this mode, the air conditioner will automatically turn on the fan for heat dissipation, and then we will hear the sound of the fan turning silver all the time, if this is the case, we don't have to worry, because the fan will stop running after a period of rotation.

2. It is also possible that the air conditioner is set to ventilation mode, in which the fan will also rotate all the time. If you want the fan to stop, turn off the ventilation mode.

3. There is also a possibility that the air conditioner has failed, causing the fan to keep spinning, at this time, we need to ask the professional personnel of the Destruction Bureau to help check whether there is any problem.

Second, what is the matter with the fan not turning

1. First of all, we need to see if the air conditioner is turned on, if the refrigeration system of the air conditioner is not turned on, then the fan is impossible to rotate, if it is turned on, but the temperature does not reach the working conditions, then the fan will not rotate. Generally speaking, the temperature of the water should reach more than 100 degrees of the old mu, and the fan will start to rotate at a low speed, and when the water temperature is higher, its rotation speed will be faster. If none of the above reasons are true, it is very likely that there is a problem with the internal device, and you can go to a repair shop to repair it.

2. It is also possible that due to poor contact, the joint is faulty, and the circuit is broken, in this case, it is impossible for the fan to rotate.

1. It may be caused by the lack of lubricating oil on the fan shaft.

Solution: The fan shaft part is to ensure that there is lubricating oil, otherwise the fan blade on the motive can not be dragged. If you are at home, you can choose to turn off the power and then turn the fan blades, if the rotation is stiff, there is basically no lubricating oil.

2. It may be caused by too large fan shaft clearance.

Solution: If the axial clearance of the shaft is too large, you can choose to adjust the gasket after disassembling the motor. However, remember that when installing the motor back, you should pay attention to the rotor must be concentric with the bearing, slowly tighten the lubricating screw diagonally, and knock the shaft with a wooden handle to ensure that it is concentric.

3. It may be caused by line damage.

Solution: If it is due to electrical fault, you can check the wiring lines, sometimes the wires are damaged, etc., and the problem can be repaired.

Note: The most important component of fan transfer is the bearing, which lacks lubricating oil for a long time, so that noise will be generated when rotating at high speed. Therefore, we only need to put a few drops of lubricating oil on the fan bearing, which can also be done if we do not use a sewing machine instead.

However, be careful not to use edible oil as a substitute, because its particles are relatively large and easy to damage the bearing.

Rotational phenomenon.

This phenomenon of rotation is the circular motion of a figure or object around a point or axis. The mode of motion is characterized by the fact that the points on the object move in a circular motion around the central point. Rotation is to rotate a certain angle in a certain direction around a fixed point, rotation is related to the point, direction, position and angle of rotation, rotation does not change the shape and size of the figure, but changes the position and direction of the figure.

The spin of life**

1. The rotation of the steering wheel of the car.

The steering wheel is connected to the steering shaft by means of a spline, and its function is to convert the force exerted by the driver on the edge of the steering wheel into torque and transfer it to the steering shaft. When steering with a steering wheel with a larger diameter, the driver's hand force on the steering wheel is smaller.

2. Rotation of the washing machine.

Washing machine is a cleaning appliance that uses electrical energy to produce mechanical action to wash clothes, and is divided into two categories according to its rated washing capacity: household and collective.

Answer: Solution: According to the meaning of translation and rotation, it can be known that the rotation of the electric fan belongs to the rotation phenomenon. Therefore, b

This is the conversion of electrical energy into the kinetic energy of the fan.

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