Generally, is it related to the circuit when the cooling electric fan is fried?

For household electric fans, the wiring is designed by the designer.

So if the fan fails, it's definitely not the fault of the circuit.

One, there is a small cuboid-shaped black driver capacitor (microfar) burned out.

Second, the transmission gear is seriously worn by heating, and one or two teeth are deformed or broken.

Third, the bearing has impurities, the torque is affected, and the heating stops running.

Fourth, the variable speed switch has been used for a long time and the contact is poor.

Fifth, the stator and rotor of the motor itself are basically not damaged.

If you have a little maintenance experience, you can slowly disassemble it to see which part is broken, and buy one online to replace it.

If you can't fix it at all, why don't you buy a new one? Around 100 yuan, you can use it for at least three or five years (don't anoint oil)!

There is a saying called "I don't know the machine and don't know the oil". There's a lot of oil, and it's not wood, so the oil can't seep in. Instead, it increases friction.

Under normal circumstances, the electric fan is caused by a short circuit in the line. It can also be caused by disconnection. Therefore, it is necessary to check in time. The line can be aged, and it can be replaced at this time.

The power cord is bent frequently, the internal conductor is broken, and the broken copper wire is caused by a short circuit, which has nothing to do with the circuit at home.

Disassemble it, cut off the 30cm power cord, reconnect it and install it.

In general, there is a problem with the electric fan, which is caused by a short circuit in the line. It can also be caused by broken lines. Therefore, it is necessary to check in time, it may be that the line is aging, and it needs to be replaced at this time.

Yes, the router is unstable, and many of them are caused by overheating. You can put it in a cooler place!

It has to do with the circuit, whether there is a short circuit.

Now cheap and low-quality fans abound on the market, and it is inevitable that they will blow up.

One. The hair dryer popped when the switch was pressed....There are four reasons for this:

1.Small conductive metal objects fall into the hair dryer, causing the internal power supply to be in a short circuit state...2.After the hair dryer is subjected to excessive vibration and impact, it wraps its (internal) electric (resistance) heating wire into a ball to form a short circuit...

3.The manual gear switch is damaged....

4. The power cord and the switch access place fall off because it is not connected firmly, resulting in a short circuit of the power cord itself....Two: ....The electricity is also stopped because the household air switch has the function of shutting off (falling off) by itself due to overload, and you must know that the moment of sparking, its current can reach hundreds or even thousands of amperes. In this case, generally do not misjudge it as leakage tripping, of course, it does not rule out the possibility of overload protection of the security guard, such a situation only needs to be manually closed, and the power can be normal.

As soon as the hair dryer pressed the switch, I heard a bang inside, and there were sparks, and the electricity at home was also stopped, that is, it tripped, you can go to see if the leakage switch at home has tripped.

This may be tripped, you have to check the control to see if it trips, and then check the wires at home to see if they are burned out.

In the case you described above, the wiring in your hair dryer is short-circuited, and when you turn on the hair dryer switch, the short-circuit current of your hair dryer trips the main switch in your home.

It could be a trip, so you need to check your circuit properly. If there is nothing wrong with the circuit, the hair dryer is burned out.

Yes, the wire inside the hair dryer burned the wire of the motor. Does less come cause power runs? Then the leakage switch in your home will trip.

It seems to be UMC's case, don't be nervous, it's okay that the inside should be the cause of dampness.

Hello: This fault is a short circuit in the heating wire in the hair dryer and will definitely trip.

The hair dryer circuit is faulty, and the short circuit causes tripping.

It's dangerous, don't use it anymore.

Yes, it's obvious that the trip, your home appliances are not turned on too much.

That's right, it's the fuse that is broken, it should be that your hair dryer is too powerful.

It is obvious that it is a short circuit, and the main switch is tripped.

I also used the charging plug board of my mobile phone like this, and then the main switch jumped.

Yes, the hair dryer burned and your house's electric air jumped.

It must have tripped, and the hair dryer was broken.

Then I think the insurance should be burned.

1 is the capacitor is broken, check the capacitance to disconnect the wiring, use the multimeter by 100 gears to connect the capacitor at both ends, the meter needle forward a section immediately back to zero, the two meter needles are exchanged and then measured, the result is the same, the capacitor is good. Otherwise, it's broken.

If you don't have a multimeter, you can use the battery to charge the capacitor, and then remove the battery, and there will be sparks at both ends of the capacitor when you connect the wires, and if you don't have it, the capacitor is broken.

2 is that the coil is open. Check whether the bridge line is mildewed, and find a way to connect it, otherwise it will be rewound.

Fault 1: Capacitor is damaged.

Inspection method: disconnect the wiring, use the multimeter multiply 100 gears to connect the capacitor at both ends, the meter needle will return to zero immediately after a section forward, and the two meter needles will be exchanged and measured, the result is the same, the capacitance is good. Otherwise, it's broken.

If you don't have a multimeter, you can use the battery to charge the capacitor, and then remove the battery, and there will be sparks at both ends of the capacitor when you connect the wires, and if you don't have it, the capacitor is broken.

Fault 2: Coil open. Inspection method: Check whether the bridge line is mildewed, find a way to connect it, otherwise rewind.

If you want to clean the electric fan diligently, you have to refuel the rotor, the electric fan will not turn, you can see if you use a screwdriver to turn the blade, that is, to change the capacitor, or you will change the motor, will not turn, you first short the timer to try, the switch to short to see if the motor is normal, remember the outside of the wire plug is also easy to break.

There are many reasons why it is broken, but if even the lights don't come on, it can only be a problem with the power supply! Some fans are equipped with a safety inside, you can open the cover to see if the safety burns!

1. 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.

Disassemble the motor with a screwdriver, get some grease (butter) as much as possible, and wipe some (not too much) lubrication on the shaft and bushing, and there are two places in the front cover and back cover. After doing this step, close the front and back covers (don't be busy installing bolts) move the shaft by hand to see if it is more flexible than before, if the answer is yes, you can install the motor bolts, and the boot should rotate normally after installation, at this time you have to slowly inject butter from the gap in the shaft, and judge whether it is suitable by hearing and vision.

2. In view of the non-rotation of the fan blade caused by wear, the easiest thing is to replace the parts, especially the shaft sleeve, which is easy to burn off if it is worn out.

3. If the capacitor capacity becomes smaller and the fan does not rotate, 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, which will have a better rotation effect.

4. If the axial clearance of the rotating shaft is too large, you can choose to adjust the gasket after disassembling the motor. However, remember that when installing the motor back, you should pay attention to the rotor must be concentric with the bearing, slowly tighten the lubricating screws diagonally, and finally knock the shaft with a wooden handle to ensure that it is concentric. It is very easy to disassemble the motor, but it is more difficult to install it back, don't do it casually, otherwise it is easy to repair the fan.

If the bearing is badly worn when the motor is removed, it should be replaced with a new part.

5. If it is because of electrical faults, you can check the wiring lines, sometimes the wires are damaged, etc., and the problem can be repaired. If the contact of the power supply is poor, try to change the power supply in a few places, if the internal circuit of the fan is not in good contact, you need to ask an expert to disassemble and check.

1. There are the following reasons:

1) The power supply is not plugged in properly, and the power cord is broken;

2) The timer is broken;

3) The motor is broken;

4) The button is broken;

5) The capacitor is broken;

6) None of them are broken, the motor is out of oil. The shaft and bushing are stuck without oil. But at this time, a small humming sound can be heard in the electric part of the electric fan, but it cannot be turned on for a long time, and the motor will be burned;

7) The wiring inside the fan is faulty.

2. Electric fan, known as electric wind in Taiwanese, is a household appliance that uses electricity to drive the fan blades to rotate to accelerate air circulation, mainly used for cooling and air circulation. It is widely used in homes, offices, shops, hospitals, hotels and other places. The electric fan is mainly composed of parts such as a fan head, fan blades, a grille and a control device.

3. The fan head includes an electric motor, front and rear end covers, and a moving head air supply mechanism. The main component of an electric fan is an AC motor. It works on the principle that the energized coil rotates under force in a magnetic field.

Electrical energy is converted into mechanical energy, and at the same time, due to the resistance of the coil, it is inevitable that some of the electrical energy will be converted into thermal energy. Modern household fans can be divided into ceiling fans, table fans, ventilation fans, turning fans, air conditioning fans (i.e. cooling fans) and so on. Many electric fans also apply electronic technology and microcomputer technology, which can be controlled remotely, but its main driving principle.

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

What's going on with the electric fan not turning.

What is the reason why the electric fan does not turn.

The bearings are rusty, and the rust is removed with butter. There is also the fact that the capacitor is broken and needs to be replaced, which is not expensive.

1. The plug may not be plugged in properly; 2. The wire may be short-circuited; 3. The switch may be broken; 4. The capacitor may burn out; 5. The motor may burn out.

There are several reasons for this:

1. The power cord is broken when the power supply is not plugged in properly.

2. The timer is broken.

3. The motor is broken.

Fourth, the button is broken.

Five. The capacitor is broken.

Six are not broken, the motor is out of oil. The shaft and bushing are stuck without oil. But at this time, a small humming sound can be heard in the electric part of the electric fan, but it cannot be turned on for a long time, and the motor will be burned;

Seven. Faulty wiring inside the fan.

1. Line 2: The fuse is burned, 3 the capacitor is broken, and 4 the motor is burned out.

Is there a power outage!! Hahaha. Just kidding.

The switch is not in good contact. It could also be an internal circuit in the fan. The most troublesome thing is that the motor is burned (if it is burned, it will smell).

Most of the electric fans do not rotate because the motor is stuck due to lack of oil, and it will be good to disassemble and add some oil on the shaft. Provided that the motor coil is not burned out.

Hello, it may be that the switch is in poor contact.

You can take the switch apart to see if the wiring under it is worn or in poor contact. If it is difficult to disassemble by yourself, it is recommended to send it to a repair shop to let a professional master repair it.

The electric fan should generally be aging, and the electrical circuit he generated caused the electric fan to short circuit, and some of them were bitten by those rats in your line, which was short-circuited. I haven't seen anyone hit me yet.

The motor is aging, it can't be brought anymore, or it is about to be turned off and soldered, turn off the power supply, open it and take a look, if you can't get it, replace it with a new one. Be kind to yourself. I don't believe you, I don't know.

Through the fault phenomenon you described, it means that your gear is broken. It is recommended that you change one gear, if you use it for such a long time, then the motor of your electric fan will burn out quickly.

First of all, see if the circuit and the switch are in poor contact, and there is that the fan has to be buttered for a long time, so it can't be replaced with a new one.

The motor of the electric fan is aging, turn off the power to see if it can be repaired, and it is best to replace it with a new one.

If there is a problem with the electric fan, just take it and repair it, and if you can't repair it, just buy a new one.

Wow! If this happens to your electric fan, throw it away, otherwise there is a good chance that a spark will come out!

I don't think you can use an electric fan this season, I don't know which side you are, it's a little cold on my side, and there is a problem with the electrical appliances, don't deal with it yourself, this can only be done with professional knowledge, so you can find someone else to help you take a look.

I've had a fan for two months and never turned it off

That's a very dangerous thing, you have to turn off all the electrical appliances before leaving the house, because there are too many uncertainties, and the general fan can work continuously without danger.

The use of induction cooker is so, it should be after the stop switch, the internal components of the induction cooker are still at a high temperature, in order to be the induction cooker has a long service life, designed in the circuit, when the induction cooker turns off the switch, there is a period of time after the fan has been cooling down, this is cooling, only the fan stops rotating to unplug the power supply, otherwise your induction cooker may cause damage to the internal components in high temperature conditions, or burn the induction cooker. Thank you for adopting.

Fan. 1) The main component of the electric fan is the motor, if the power supply voltage fluctuates seriously, the motor winding is short-circuited, the motor bearing is damaged, and the lack of lubricating oil will cause the temperature rise of the motor to be too high, and when it exceeds a certain limit, it will make the winding smoke**;

2) Many electric fans are equipped with speed switches. The electrical speed regulation generally adopts two speed regulation methods: reactor and motor coil tap. A reactor is a multi-tap coil that heats up when it works.

When the core is poorly insulated and the eddy current increases, the reactor temperature will be very high, which will ignite combustibles such as plastic devices. Therefore, it is necessary to always check whether the speed regulation of the speed regulating reactor is normal, and if there is any abnormality, it should be stopped for repair;

3) The capacitor is not enough to withstand voltage or the current will increase and cause fire, so it is necessary to prevent the capacitor from being damp and corroded in use;

4) With the development of new materials, plastics are gradually replacing metal materials and becoming the main material of electric fans. Most plastics are now combustible, which undoubtedly increases the fire hazard of the fan itself. In addition to the manufacturer using non-combustible and non-combustible materials, the use of electric fans should pay attention to the fire prevention of plastic fans, so as not to get close to the heat source, avoid high temperatures, etc., in order to eliminate the fire hazard.