The fans CPU and power supply have a burnt smell, but they work fine. Sometimes it smokes, why?

Yongchengchuang Technology was registered and established in Shenzhen on November 1, 2011, is a manufacturing enterprise integrating R&D, production and sales of cooling fans. At present, the company has passed ISO9001, ISO14001, IATF19094 management certification, and its products have obtained UL, CUL, TUV, CE, SGS, CCC, and other quality certifications. The products are sold all over the world and are widely used in automobiles, power supplies, home appliances, communications, medical equipment and other industries.

Discontinue use immediately!!

If you continue the power supply and CPU, or the motherboard will have a complete "stop working".

At the moment, there is no problem, but it is likely to be caused by an overload of the power supply.

Sometimes you can't just look at the rated voltage.

For example, the same rated 350W power supply also depends on how big its output voltage is, even if the parameters are all the same, different quality power supplies are also different, such as the excellent quality W350 power supply with 8600 graphics card.

If it's not enough to meet your overall needs, overwork, then the result is definitely something to burn.

But for now, if your processor is not overclocked, the possibility of power supply problems is more likely, so it is better to find a friend who understands it to help you see that the power supply and the whole machine are not matched properly, or the power is not enough, or the quality is wrong, or the chassis has too many things, or.

A burning smell can be caused by:

1. The electric fan uses inferior insulating paint in production, and when the insulating paint is heated, it emits a pungent odor, and the smell is getting smaller and smaller in the future use.

2. The motor shaft is out of oil in the case of not powering on the wind blade lightly, after the hand leaves, if the rotation is flexible, it is also lubricated, if you want to bring the fruit to say that the rotation is sluggish, that is, the lubricating oil is gone, remove it and drop a few drops of lubricating oil on the shaft and try to send it to the home appliance repair shop for maintenance, otherwise the motor will rotate for too long and the load will be too heavy and burn out.

How to use and maintain the electric fan:

1) Before use, you should read the instruction manual in detail to fully grasp the structure, performance, installation, use and maintenance methods and precautions of the electric fan.

2) Desktop and floor-standing electric fans must use three-pin plugs and sockets with safety grounding wires; The ceiling fan should be installed at a higher position on the ceiling and can be installed without a grounding wire.

3) The fan blades of the electric fan are important components, and they must be protected to prevent deformation during installation, disassembly, scrubbing or use.

4) When operating the switches, buttons and knobs of various functions, the action should not be too violent or too fast, nor should two buttons be pressed at the same time.

5) The speed control knob of the ceiling fan should be rotated slowly and sequentially, and should not be rotated in the position between the gears, otherwise it is easy to make the ceiling fan heat up and burn in.

6) The oil stain or dust accumulation of the electric fan should be removed in time. Do not wipe with gasoline or strong lye to avoid damaging the function of the surface painted parts.

7) If there is a hot hand, abnormal burnt smell, shaking head, slow speed and other faults in the process of using Tongji, do not continue to use it, and cut off the power supply in time for maintenance.

8) Before collecting the fan, the surface oil and dust should be completely removed, and wiped with a dry and soft cloth, and then wrapped in kraft paper or clean cloth, and the storage place should be dry and ventilated to avoid squeezing.

No, it's not poisonous.

If there is a hot hand, abnormal burnt smell, slow speed and other faults during the use of the electric fan, do not continue to use the shield, and cut off the power supply in time for maintenance. The burning smell may also be the smell of the insulating paint paint on the copper of the electric fan when it is running, so you have to smell it when buying an electric fan to see whether the paint is environmentally friendly and whether it has passed the quality judgment and testing.

Before using the electric fan, you should read the instruction manual in detail to fully grasp the structure, performance, installation, use, maintenance methods and precautions of the electric fan.

It is not recommended to continue to use the electric fan if it is heated and has a mushy smell, and the motor in the electric fan is generally overheated, resulting in some plastic components in the fan being burned and the smell of paste is emitted, and it is generally not recommended to use this situation, because the motor is overheated to indicate that there is a problem with the internal insulation, if it is used for a long time, there are certain safety hazards, and the correct way to deal with it should be to contact the after-sales service of the electric fan, so that professional personnel can inspect and repair.

Common causes of heating in electric fans and how to deal with them:

1. There is debris between the stator and the rotor, at this time, you only need to clean up the debris inside.

2. If there is a lack of lubricating oil, add a little lubricating oil to the running part of the electric fan.

3. The winding is short-circuited, and a new winding is replaced.

4. The bearing and the shaft fit too tightly, adjust or replace the bearing.

5. The air duct of the front and rear cover of the table fan is blocked, and the air duct of the back cover can be cleaned.

6. The shaking head part is not flexible, you can add a little lubricating oil or replace related parts.

7. There is too much dust inside the fan, which affects the heat dissipation, so you can clean up the dust in the electric fan.

Note: If the electric fan fails, try to find a professional to deal with it, and do not deal with it privately.

Summary. The power connector is scorched or scorched. It is recommended to turn off the power and unplug it. Use a multimeter or current (volt) meter to check the power supply and power cord to see what the problem is. For example, if the contact is bad, simply replace it with a new power supply and power supply.

There are sparks and a burning smell from the computer's power supply.

Hello, according to your problem may be the power cord is loose, caused by poor contact. If sparks occur from time to time, it is recommended to reseat the power cord or replace it with a new one.

The power connector is scorched or scorched. It is recommended to turn off the power and unplug it. Use a multimeter or current (volt) meter to check the power supply and power cord to see what the problem is. For example, if the contact is bad, simply replace it with a new power supply and power supply.

And you should also check the motherboard of the computer immediately to see if it is burned out due to overload.

First, turn off the power, open the side panel of the case, and observe whether there are burned-out parts on the motherboard. Under the premise of power failure, observe whether there are burned out components on the power supply motherboard through the gap of the power supply fan of the main chassis. This can be caused by a short circuit inside the power supply, ideally if the power fuse blows.

It is advisable to find a professional to repair it. Finally, remind that the above operations must be powered off.

The lack of lubricating oil on the spindle of the rotor of the electric fan, or the unbalanced shaking between the fan blades, will produce resistance to the rotating magnetic field, and the current in the inductance coil will increase, and the insulating paint wrapped in the outer layer of the copper wire will be softened due to overheating, or even fall off, which will cause a short circuit in serious cases.

The enameled wire in the fan motor is heated, because the oil-impregnated bearings at both ends of the shaft are placed without lubricating oil, and the oil-impregnated bearings at both ends can be lubricated (oil) to solve the problem.

There is a burnt smell because the coil is burned or the wire touches the wire to release heat, which makes the plastic scorched.

Friends, from a professional point of view, generally speaking, electrical appliances that have been placed for about a year, when they are to be used again, must be dehumidified and dried, and then the insulation test will be done, and of course, the local air humidity will be specifically distinguished. Judging from what you said, the above basically did not do, but where there is a burnt smell is generally caused by the internal insulation of the motor and the temperature is too high, there are two situations, the first is the aging of insulation, this situation is basically waiting to say goodbye to the electric fan, the second situation is caused by water vapor or the urine and feces of some insects, with the increase in temperature the insulation has been rising, and then the rising temperature will evaporate or dry those things so it will be fine, all electrical appliances will have a temperature when working, That way, you'll find it ready to use again when you use it a second time. This is just a superficial talk, and it is complicated to be specific, so I will touch on it a little here.

Hope it helps.