What is the reason for the slow start of the electric fan?

There are two reasons for the slow start of electric fans: one is the aging of capacitors, and the other is the aging of motors. The judgment method is to start the lowest gear, slowly turn the fan and stir the fan blades. If the blade has been working normally, it is a capacitance problem; Otherwise, it is the motor problem that the speed of the fan blade decreases after running for a period of time.

1, fan dust, dust mites

Because the fan blades are used for a long time, the dust attached to the air will be deposited on them when rotating, and there are a lot of dust mites in the middle, which reduces the rotation speed of the blades.

Solution: It can be solved by disassembling and washing. Clean up the dust and dry it, and it will be as good as before.

2. No lubricating oil

The rotating shaft of the fan is guaranteed to have lubricating oil, otherwise the power of the upper fan blades will not be dragged. If you are at home, you can choose to turn off the power first and then turn the fan blades. If the rotation is stiff, there is basically no lubricating oil.

Solution: Drop some lubricating oil on the rotating shaft, so that it can be lubricated without affecting the power of dragging the blades.

3. The capacitance becomes smaller.

After the electric fan is used for a long time, the capacitance will also change and decrease, resulting in the starting torque of the motor becoming smaller and unable to drive the load.

Solution: The capacitance of the capacitor becomes smaller. To replace a new capacitor, you can remove the capacitor and replace it with a new capacitor of the same model. It is suggested that the capacitance is 20% larger than that of the original factory, and the rotation effect is better.

Attention should be paid to when using electric fans:

1. Read the instructions carefully before use, and fully grasp the structure, performance, installation, use, maintenance methods and precautions of the electric fan.

2. When the electric fan is used for a long time, it is easy to get dust under the fan blades. This is because the friction between the running fan blades and the air brings static electricity to the fan blades, which is easy to attract fine dust floating indoors. The oil or dust of the electric fan should be removed in time, and neutral detergent and soft cloth should be used when cleaning to avoid damaging the surface or coating of the shell. When disassembling and assembling the fan blades, pay attention to protecting the fan blades, so as not to deform the fan blades, so as to avoid vibration or shaking when the fan is running.

3. When the electric fan is in use, if there is fever, abnormal burning and slow operation, don't continue to use it, and cut off the power supply in time for maintenance.

4. When using electric fans in summer, it is forbidden to blow for too long and the wind is too strong after the heat is urgent. Shake your head and slow down. It is better to keep out the wind naturally, but it is better to fall asleep with the sleeping wind.

Families with children should pay special attention to the safe use of electric fans. Put it in a place where children are not easy to touch, and educate children at home not to touch the fan blades out of curiosity to prevent accidents.