Why is the electric fan turning but no wind?

Fan. The causes and solutions for turning but no wind are:

1. The electric fan is a household 220V alternating current.

Power supply: 1. The fan blade is reversed: there is no wind on the front side, but there is it on the reverse side. (Generally, it is likely to occur, because the blades are reversed and cannot be installed).

2. Deformation of fan blades: remove the fan blade cover, and tilt each fan blade at a certain angle according to the rotation direction of the motor.

Second, the electric fan is used 380V AC power supply for industrial use

1. There is no wind on the front and there is on the reverse side, the power line is reversed, and any two of the three incoming wires can be reversed.

2. There is no wind on both sides of the front and back, and the method of the first point and paragraph 2 above is used to solve it.

Features of the electric fan::

1. Natural wind: imitate the natural gusts of wind by the sea.

The wind speed is sometimes large and sometimes small, sometimes and sometimes there is no time, elegant and comfortable, which satisfies the psychology of returning to nature, and can also effectively prevent the damage caused to the human body when the air is supplied at a constant speed for a long time.

2. Sleep wind: the air supply is similar to the simulated natural wind, but the wind speed is smaller than the conventional wind of the same grade, and the timing is set, after the air supply reaches a certain time, it will automatically stop once, and the longer the timer, the longer the downtime will be, and the wind speed will gradually weaken, effectively preventing the cold and flu and other diseases caused by the decline in resistance of the human body during sleep.

3. Timing: The stop time can be set.

4. Remote control: control the fan from a distance.

The fan blades of the electric fan are installed incorrectly, or the fan blades are installed in reverse, check whether there is wind behind the fan, if there is wind, it means that the fan blades are installed in reverse.

There is also a possibility, if it is a fan blade, it is not a whole, it is a scattered installation, it may be that the fan blade as a whole is not coordinated, or because the fan blade itself has been deformed and cannot produce the effect of air out. In this case, the only way to do this is to replace the blade with a new one, or simply attach the blade to its original shape.

If the fan is still rotating, but there is no wind, it may be that the wind arithmetic is too low, or the dispersion sheet has been eliminated and needs to be replaced.

The quality of the electric fan is not good.

The fan is turning but there is no wind as follows:

1. You also have to consider how long the electric fan has been used, the motor of the electric fan will be lost, and the shaft sleeve of the motor will be easily burned out after wearing.

2. If the motor is used for a long time, the internal resistance of the motor will also become larger, and the load capacity will be lower, resulting in the inability to drive the fan blade to rotate. In addition, the axial clearance of the motor's rotating shaft is too large, which will also cause the load to be unable to be dragged.

3. Most people may encounter the following phenomenon, the electric fan does not rotate, you use your hands to pull it or it will take a long time to slowly rotate.

4. After using it for a period of time, I found that I would not move if I pulled it out by hand. The possible reason for this phenomenon is that the starting capacitance inside the fan has become small enough to rotate the motor.

5. When the fan blade is installed on it, the motor is not dragged, and the shaft will be found to be running normally after being removed, which means that the fan motor is not broken.

The electric fan turns, there is no wind, and the fault is as follows:

1. If the fan blades rotate in the opposite direction, the direction of rotation should be changed. Here's how: find the motor starting capacitor, move the power input cable from one side of the capacitor to the other. Just move from 1 to 2 on the other side.

2. The speed of the electric fan is too slow. Solution: First drop a few drops of oil on the motor bearing to make the blades rotate freely. Then look at whether the motor winding coil is black, if it is blackened, the motor has been burned, repair or replace the motor.

3. The gap between the rotor and stator of the motor is too large and miscentered, and the speed is too slow due to mutual friction. Replace the motor bearing to reduce clearance.

4. The mains voltage is too low.

The electric fan rotates but there is no wind, it is estimated that the speed is too slow. There are two reasons why the fan speed is slow. One is the starting capacitor, and the capacity becomes smaller. The second is the local short circuit of the motor coil of the electric fan.

The electric fan fan is rotating but there is no wind, there are several situations:

1. The fan blades accumulate a lot of dust, which makes it impossible to cut out the wind when the fan blades rotate.

2. The motor is reversed, and the fan blade blows in the opposite direction, because the fan blade cutting angle is wrong, and the wind will not form in the rear, 3. The fan blade is aging and deformed, and the wind cutting angle changes, and the fan blade angle tends to be close to the horizontal direction, so it is impossible to cut the wind and form the wind.

Check if it's reversed, and if not, adjust the angle of sarcasm.

The electric fan is working normally, but the wind is not being felt, and the real reason is:

The strength of the blades is too low.

When the fan blade enters the high-speed operation state driven by the motor rotor, the reverse wind pressure of the fan blade reaches the maximum. Under normal circumstances, the blades are strong enough to withstand this wind pressure and keep the inclination of the blades constant, and air is pushed out of the front of the blades, forming the "wind".

But if the blade is not strong enough to resist that wind pressure, the blade will deform and bend backwards. Eventually, the blades rotate in a near-planar trajectory plane so that no air is pushed out.

It can be solved by replacing the fan blades with high strength.

It may be that the electric fan has not been cleaned for too long, and the electric fan is rotating but there is no wind. The fan surface and air outlet of the electric fan that have not been cleaned for too long will attach a large amount of dust and other debris, which will block the air outlet of the electric fan, and will also cause the speed of the electric fan to weaken, so that the wind power of the electric fan will be reduced. When you have free time, you can turn on the electric fan and clean and wipe the fan blades, air outlets, protective nets and other parts inside.

It may be that the motor lubrication of the electric fan is not good, the motor can not drag the fan blades, and after removing it, you will find that the shaft can still operate normally, which means that the fan motor is not broken, but the motor lubricating oil is insufficient, resulting in insufficient speed of the electric fan and less air outlet. You can turn on the electric fan and apply some lubricating oil to the motor of the electric fan.

The reason why the electric fan is on but there is no wind may be the following situations, and the specific situation and solutions are as follows:

1. It may be that the fan blades are reversed, and the fan blades are reversed, which will not affect the electric fan, and can still rotate, but there is no wind, and the fan blades only need to be removed and reinstalled.

2. The back of the electric fan may be too close to the wall, resulting in air convection, so you can move the electric fan to a ventilated position.

3. The internal resistance of the motor will become larger and the load capacity will be lower after the motor is used for a long time, resulting in the inability to drive the fan blade to rotate, and the excessive shaft clearance of the motor will also cause the fan blade to not rotate due to the inability to load. Replacing the motor with a new one will solve the problem.

4. It is also possible that the lubrication of the motor is not good, resulting in the motor being unable to drive the fan blades to rotate, so that there is no wind, and an appropriate amount of lubricating oil can be added.

Pay attention to the position of the electric fan, not too close to people, too close will lead to a large gap between blood circulation and sweat circulation, and blowing at close range for a long time, the human body will feel uncomfortable. The electric fan is placed about 2 meters away from people, so that the wind is more uniform and soft. It is also necessary to avoid long-term direct blowing, which will cause discomfort to the human body and have a certain impact on the human body.

At the same time, the wind speed should be set, not too large, to ensure that the human body can adapt to the use.

Fans are relatively common in daily life, and in the process of using fans, there may be some problems.

1. What's going on with the fan only turning and not supplying air?

1. Install the fan blade upside down, there is no wind on the front, but there is wind on the back side, you need to remove the fan first and re-install the fan blade.

2. The fan blades are deformed, and each fan blade in the fan needs to be tilted in the direction of rotation.

3. If the power cord is reversed, the power cord is reversed, two of the three incoming wires need to be reversed, and the power switch needs to be turned off before wiring.

Second, the advantages of electric fans.

1. Compared with air conditioners, electric fans are more energy-saving and energy-saving, so the amount of electricity that needs to be consumed is relatively small, and after being turned on, you can feel the natural wind, which is more comfortable to blow, and the wind speed can also be adjusted.

2. Some electric fans also have a timing function, you can time the electric fan before going to bed, and the electric fan will automatically turn off after the time.

3. Some electric fans are relatively small, so it is very convenient to carry, usually when outdoor activities, you can hold the electric fan in your hand, the wind power is relatively large, and the power consumption is relatively small, from the appearance of the shape is very beautiful.

3. Precautions for using electric fans.

1. When using the electric fan, the position of the electric fan needs to be corrected, so that the electric fan cannot be in an inclined state, and the position of the electric fan cannot be too close to the person.

2. When using the electric fan, you can't blow it on people for a long time, otherwise it is very likely that you will have a cold or body pain, try to set the electric fan to the head rotation mode.

3. When the electric fan is turned on at the beginning, the wind speed should not be too large, and the wind speed needs to be controlled in a suitable gear, so that people can have a good adaptation process.

There is no wind on the front of the electric fan, and there is wind on the back, which means that the fan blades are reversed, and the other situation is that the direction of rotation of the motor is reversed (it may be that the starting winding is broken and there is an external force when starting).

Can you think that if the electric fan has been rotating, but there is still not much wind compared to the ECG fan you bought before, this is a problem with the blades of your electric fan, and you also need to take the head of the electric fan down with a knife, readjust the country, and then put that protection, network, cleaning will be much better.

It is the direction and angle of the fan blades that are wrong, or it is possible that the speed of rotation is too slow, which affects the size of the air volume.

That's the fan blades, and he's stirring up the air.

It should be running in reverse, so there is no wind, and I am really helping you look forward to it

The electric fan is turning but no air is coming out for several reasons:

1.The fan blades are dirty. If the fan blades are covered with dust or other debris, they won't turn. Cleaning the fan blades can solve this problem.

2.The fan blades are loosely connected. This means that if the fan blades are loose, they won't turn. Using a screwdriver to tighten the bracket that connects the fan blades can solve this problem.

3.The fan motor hall cluster is broken. If neither of the above causes is a problem, then it is likely that the motor is faulty and you may need to replace the motor or buy a new fan.

4.The fan is not fixed in an appropriate position. If the fan is placed unevenly or incorrectly, the fan may make an abnormal sound. Place the fan on a flat ground so that it has room to dissipate heat and blow air.

The fan rotates normally but there is no wind, is that so? I don't know if your fan is for household or industrial use, household (220v) industrial (generally 380v, there are also 220v), please see the solution:

1. Household 220V:

1. Wind blades are reversed: there is no wind on the front and there is (try it yourself) to know if this is the reason; (Generally, it is likely to occur, because the blades are reversed and cannot be installed).

2. Deformation of the fan blades: remove the fan blade cover, and tilt each fan blade at a certain angle according to the direction of rotation of the motor, Note: The tilt angle should be tilted backward in the direction of rotation, and the angle should not be too large, otherwise it will touch the outer cover, and the angle of inclination of all fan blades should be as consistent as possible, otherwise the fan will shake a lot after installation.

2. Industrial 380V:

1. There is no wind on the front and there is on the reverse side, the power line is reversed, and any two of the three incoming wires can be reversed.

2. There is no wind on both sides of the front and back, and the method of the first point and paragraph 2 above is used to solve it.

If the fan blades are not from the original machine, or the fan blade size is too small, then the wind generated is also very small, or even no wind, and the fan blades matched by the original machine need to be replaced. Or the electric fan has been used for too long, and the fan blades and other parts are contaminated with more dust, which hinders the normal operation of the fan, and there will be no wind linearity. The fan needs to be disassembled in time and cleaned properly.

It is also possible that the motor of the fan is not lubricated enough, which causes the fan blades to be dragged. At this time, you need to disassemble the fan, apply an appropriate amount of lubricating oil, and then install it back to use normally.

The small fan can be reversed by dialing it by hand, and your situation should be that the fan is reversed, and naturally the fan will have no wind, and the noise will become very loud. There is no effect on the fan at all. Quite normal.

The speed of the fan is not enough, and the angle of the fan blades is too passive. If the fan blades are not angled correctly, the wind must be very small. For example, if the blades are flat, how can there be wind? The third is that the fan is reversed.

The main component of the electric fan is: AC motor.

Its working principle is that the energized coil rotates under force in a magnetic field.

The form of energy conversion is: electrical energy is mainly converted into mechanical energy, and at the same time, because the coil has resistance, it is inevitable that some electrical energy will be converted into thermal energy.

When the electric fan is working (assuming that there is no heat transfer between the room and the outside world), the temperature in the room will not only not decrease, but will rise. Let's analyze the reasons for the temperature increase: when the electric fan is working, because there is an electric current through the coil of the electric fan, the wire is resistive, so it will inevitably generate heat and release heat to the outside, so the temperature will rise.

But why do people feel cool? Because there is a lot of sweat on the surface of the human body, when the electric fan is working, the indoor air will flow, so it can promote the rapid evaporation of sweat, combined with "evaporation needs to absorb a lot of heat", so people will feel cool.