Why is the electric fan running slower and slower?

The reasons why the electric fan is getting slower and slower may be the following:

1.The capacity of the starting capacitor of the electric fan gradually decreases, resulting in the auxiliary role played by the capacitor when the motor is running, which eventually leads to the slower and slower rotation of the electric fan.

2.Due to long-term friction and high temperature, the lubricating oil of the bearing gradually decreases, and the resistance between the bearings gradually increases, so the operation of the electric fan is getting slower and slower.

3.There is a slight short circuit between turns in the motor coil of the electric fan, which causes the operation to become slower and slower.

Solutions for the above situations:

1.If the capacitor of the capacitor decreases or fails, the starting capacitor of the same model and specification of the original machine should be replaced in time to ensure that it can play the role of starting the motor while maintaining normal auxiliary operation;

2.Check the bearings of the electric fan motor, if there is wear or damage, it should be replaced in time; If there is a lack of lubricating oil, the motor should be disassembled for cleaning and oil injection to ensure that the lubrication between the motor shaft and the tile is good;

3.Check and measure the current of the motor, and find that it is higher than the normal value and the motor is running slowly, because the motor coil is slightly short-circuited between turns and the load capacity decreases, and the motor should be replaced in time.

Electric fans should be stored in a dry place during the season when not in use, and should be maintained and oiled once before sealing. Ensure that there is no accident in its next use, and when the speed is found to be abnormal in use, it should be sent for repair in time to avoid other more serious failures caused by complete damage to the components.

The speed of the electric fan is getting slower and slower, it is nothing more than these 3 reasons, the old electrician teaches you step by step, practical electrician technology!

The key is that the CPU temperature is not high.

Nowadays, many windy fans do not rotate fast, but the cooling effect is good.

If the fan speed is slow and the CPU temperature is very high, then you need to consider a good fan.

Identify some extrinsic causes. For example, the plug is not plugged in properly, and the fan switches are not all turned on. Generally, the fan should also pay attention to whether it is turned off regularly. If these are all right, it may be the cause of the electric fan itself.

The cause of the electric fan itself may include that the blades may have been too long, and the resistance in the motor has become large, causing the blades to not rotate properly. The overheating of the fan leads to the deterioration of the load capacity of the motor, resulting in its inability to rotate, the internal protection device of the motor is overheated and short-circuited, the starting capacitance capacity of the electric fan is small, and the axial clearance of the rotating shaft of the electric fan is too large.

Related information. Today's electric fans have changed the traditional image in people's impressions, and are more personalized in appearance and function. Computer control, natural wind, sleep wind, negative ion function, etc.

It belongs to air conditioners, and is also used by many electric fan manufacturers, adding more practical functions such as lighting and mosquito repellent. These eclectic and versatile products indicate the development trend of the entire electric fan industry.

In the era of pursuing individuality, fashion and sophistication, consumers seem to have a soft spot for petite and cute home appliances. As a result, cute-looking, brightly colored, and petite box-shaped fans were born along with various portable electric fans. The housing and blades of these electric fans are plastic, making them very light overall.

With their petite size and beautiful colors and appearance, these fans were very popular as soon as they were launched.

The reason why the electric fan is running very slowly:1. When the electric fan is slow, you can start the high gear first, wait for the fan to rotate, and then switch to the low gear, or use a stick to turn the fan blades vigorously.

2. If the electric fan rotates slowly, the starting capacitor may be broken, and the starting capacitor can be restored to normal by replacing it.

3. The voltage is too low to start the motor of the electric fan, so you can add a voltage regulator to increase the voltage.

4. There is a shortage of oil in the motor of the electric fan, so you can smear the oil on the bearing to restore the work of the electric fan.

There is a problem with the fan, and there are precautions for operation.

When it is found that the fan is slow to rotate, only by knowing where the problem is in the dust can it be dealt with in a targeted manner. First of all, you need to count whether it is due to external reasons, such as the power supply is not plugged in, the switch is not fully turned on in place, etc., if it is not because of these reasons, it is an internal reason. If the fan is overheated for too long and the load capacity of the motor becomes poor, the fan will rotate slowly. Another reason is that the protection device inside the motor is overheated and there is a short circuit; In addition, the axial clearance of the shaft of the electric fan is too large, which can also cause such problems.

There are two reasons why the electric fan starts slowly: one is the aging of the capacitor, and the other is the aging of the motor.

The judgment method is to start the lowest gear, the fan slowly rotates, dial the fan blades, if the fan blades continue to operate normally, it is a capacitance problem, on the contrary, the speed of the fan blades after running for a while is a motor problem.

1. Fan blade dust and dust mites.

Due to the long-term use of the fan blade, the dust attached to the air will be deposited on it when it rotates, and there are a large number of dust mites in the process, so the rotation speed of the blade is reduced.

Solution: It can be solved by dismantling and washing, cleaning and drying the dust, and it can be restored to the original.

2. No lubricating oil.

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

Solution: Some lubricating oil should be dripped into the shaft so that it can be lubricated, so as not to affect the motor dragging the blade.

3. The capacitance capacity becomes smaller.

After the electric fan is used for a long time, the capacitance capacity will also change and decrease, resulting in the starting torque of the motor becoming smaller, and the load cannot be driven.

Solution: The capacitor capacity becomes smaller, to replace the new capacitor, you can remove the capacitor and replace it with a new capacitor of the same model, it is recommended to choose a capacitor that is 20% larger than the original capacitor will have a better rotation effect.

Common faults of electric fans.

1. The fan shaft part should ensure that there is lubricating oil, otherwise the fan blade cannot be dragged by the motive on it. 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. Wear and tear caused by long-term use. If a fan is used for a long time, the motor will wear out, and the shaft sleeve of the motor will easily burn out after wearing.

3. The fan does not rotate due to overheating. There is a motor in the fan device, and there will be an overheating circuit breaker in the motor, if there is a short circuit in the coil winding, the heat will increase in a short time, and the motor will "strike" in this case.

4. The capacitance of the starting capacitor becomes smaller. When the fan is used for a long time, the capacitance capacity will decrease, resulting in the starting torque of the motor becoming smaller, and the load cannot be driven.

5. In many cases, the reason why the fan blades do not rotate is the problem of poor maintenance. If the blade is stiff after turning off the power, you should use some lubricating oil to drip into the shaft so that it can be lubricated so as not to affect the motor to drag the blade.

The above content refers to Encyclopedia - Electric Fan.

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I have been exposed to a lot of electric fans, in contrast, it is still the most reliable place in Gree, which is often easy to be damaged, and Gree has been reinforced and improved, so the life is much longer, so I bought Gree electric fans at home later.

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The electric fan has been used for a long time, and its sock sensitivity, circuit and various operating functions have declined, and in daily life, pay attention to cleaning, there is too much dust, and the resistance is large, so it turns slowly.

The biggest possibility is that the fan motor has aged due to long-term use, so it will rotate slower and slower.

If you regret that the rotation is getting slower and slower, it must be that the motor has been damaged, and you can go to a professional maintenance personnel to take a look.