What's wrong with slow fan speed (what's wrong with slow fan speed)

it's hot in summer, and the heat is irresistible! It's the hot weather season in a year!

Although people's living standards have improved now, they have air conditioning. However, the electric fan is still an indispensable tool to cool down in summer.

Today, I will tell you the reasons for the slow speed of electric fans and the maintenance methods:

When an electric fan is used for a long time, there will always be problems of one kind or another. Most commonly, with the passage of time, the speed of the fan will slowly decrease. Finally, one day, the speed was so slow that there was no wind < P > What caused this situation? Generally, there are three kinds of faults:

1. If your fan has been used for more than five years. If it is found that the rotating speed is slow, first take off the motor cover and check the capacitor. Many faults with slow rotating speed are caused by the weakening of the capacitor capacity. Changing the air capacity and adding some lubricating oil to the rotating shaft can solve the fault.

2. If your fan is only used for one or two years, it is probably a motor problem. Because, in recent years, 95% of the motors of low-grade fans sold in the market are made of aluminum wires, which have poor conductivity and are easy to generate heat during operation. When the insulation coating reaches the standard temperature, it will melt, resulting in turn-to-turn short circuit and weak magnetic field lines. The motor speed will slow down until it burns out. In this case, we can only change the motor.

3. Because the current fan motors are all made of aluminum wires, they are easy to generate heat. If they are used for a long time, the motors will generate high temperature. Then, the bearing oil is dried, the lubrication of the rotating shaft is weakened, the resistance is increased, and the fan is slowed down.

the solution is to remove the motor cover and use alcohol or gasoline at both ends of the motor shaft, preferably with a special cleaning solution. Clean the dry and condensed grease between the bearing and the rotating shaft, and rotate the rotor while washing until it rotates flexibly. Then, apply high temperature resistant engine oil or sewing machine oil, and the fan will be repaired.

the above are the reasons for the slow speed of the fan and the solutions.

here, I would like to tell you that if you buy a fan, you'd better buy the one with good quality and high price and all-copper motor. Don't be greedy and cheap, buy a cheap fan of aluminum wire motor. The combined use time of three aluminum motor is not as long as that of a copper wire motor. On the surface, you saved money, but in fact you spent more money.