Recently, many people have asked me what happened when the electric fan turned for a long time. In fact, this kind of problem is not single. Therefore, when encountering such a problem, we must first fully understand the reasons, so as to solve the problem. In addition, we will tell you the common faults of electric fans and their solutions to facilitate our daily use. Recently, many people have asked me what happened when the electric fan turned for a long time. In fact, this kind of problem is not single. Therefore, when encountering such a problem, we must first fully understand the reasons, so as to solve the problem. In addition, we will tell you the common faults of electric fans and their solutions to facilitate our daily use. Because sometimes the fan may be just a small problem. If you can't solve it, you don't have to. It's a pity to throw it away.

What is it that the electric fan takes a long time to turn?

First, it turns slowly, almost invisible, then it turns faster and faster, and finally it swishes. That's right. You spend about 3 yuan on a capacitor in a general hardware store. Yes, it's called a capacitor. Yours should be a desk fan. Just say it's for the desk fan. Go home and take the electric fan apart. You will see a black (usually black) square, and that's it. If you can't tell the positive and negative poles apart, the word edge of the square (capacitor) shall prevail, with the left side connected to the left and the right side connected to the right.

Finally, if you think the original fan is not cool, don't cut it off. It doesn't matter if the capacitance doesn't exceed 2 microfarads (your original is only a few tenths, so it's slow). Otherwise, the original file will be deleted. . .

Common faults of electric fans and their solutions

Emergency repair of electric fan

The electric fan is broken. Measure the open circuit of the main coil with a multimeter. Open the back cover and remove the four fixing bolts to expose the wire package. You can see that there is a triode-shaped temperature fuse in the wire package. Its safe temperature is 130C? Withstand voltage of 250V, and conduct electricity under normal conditions. Now use multimeter to directly measure both ends of the safety tube, which has been opened and the coil is in good condition. If you don't have the goods on hand, you can remove the broken fuse, weld the two ends together and do a good job of insulation. You can also use it, but you can't use it continuously all day. You should take a rest every two days to avoid overheating in your body.

Repair of shaking head fault

The power of the electric fan swing mechanism comes from the worm at the rear end of the motor shaft, which drives the four-bar linkage to swing back and forth through two-stage speed change. Shake your head failure is mainly divided into two situations: not shaking your head and shaking your head. One of the reasons for not shaking your head is that shaking your head is blocked, which is caused by the deformation and bending of the connecting rod. what's up Noise and deformation of connecting rod can be removed, and can be eliminated after shaping.

Solution to the fault caused by capacitor drop

After the ceiling fan is installed, it is found that the rotation speed is low and the rotation is weak. At first, I thought the president was inappropriate, but it was still the case after the replacement. A capacitor of 1uF was tried, connected in parallel to the original capacitor terminal, and then the fan turned quickly after the power supply was turned on, indicating that the capacitor capacity was insufficient, and the fault was eliminated by replacing the capacitor with the same specification.

Solution of bearing oil shortage

A floor fan, used for a year, the fan does not turn. It is difficult to turn the blade by hand. Remove the blades and light oil from the shafts at both ends for rotation. After installing the blade, it will stop for a while and the wire package will be hot. Check that the capacitance and inductance of the wire package are normal, and it is suspected that it is a mechanical failure. First remove the four-money fixing screw to take out the rotor, then remove the ball bearings at both ends, wash them with kerosene and soak them in 20 # engine oil (or sewing machine oil) overnight. Put it away in the original order the next day, and pay attention to re-soaking the adhesive gasket with oil. After the repair, the electric fan turned again.

The electric fan has been used for a long time, and everyone knows what it is. In fact, if you encounter such a problem, if you can't solve it yourself, I hope to find someone else to fix it. In addition, you need to know the common faults of electric fans and their solutions, because some problems can be solved by yourself. So when you have questions, you can read more about the above introduction, hoping to bring you help.