The fan of the range hood doesn t turn anymore and makes a buzzing sound What s going on?

1. If the motor is poorly lubricated and the lubricating oil is dry, the wind speed can be rotated by hand, but if the resistance is large and the rotation is not flexible, the lubricating oil should be added;

2. If the starting capacitor capacity of the motor decreases, the starting capacitor of the same capacity should be replaced.

1. The motor of the range hood does not rotate and there is a humming sound, which is usually caused by the reduction of capacitance capacity or short circuit, which causes the motor to not start normally. You can check the surface of the capacitor, if there are burnt marks on the surface, this indicates that the capacitor is damaged, and you can simply replace the capacitor of the same model to troubleshoot.

2. If the motor rotor (bearing) of the range hood is greasy, it will also cause the motor to not rotate normally. If you can determine that the capacitance of the range hood is not broken, the most likely thing is that the range hood has been used for a long time, and the motor rotor (bearing) of the range hood is greasy, and the range hood needs to be cleaned.

3. If it is confirmed that the capacitance of the range hood is not damaged, if you dial the fan blade of the motor, the fan blade also rotates normally, it means that there is no problem with lubrication, nor is it a failure of the capacitance, it may be the fault of the range hood, if the motor only rotates for a short time and it is hot, it means that the coil in the motor is caused by an inter-turn short circuit, and a new motor needs to be replaced.

The reason why the range hood motor buzzes and does not turn:

1. There is a capacitor in the range hood, if it is damaged, it will affect the range hood.

2. It is also possible that there is a fault in the circuit, such as a short circuit in the line connecting the range hood, which will directly cause the motor to not work. You can check if there is a problem with the circuit and measure it through a multimeter.

3. There is another reason, many families usually do not pay attention to cleaning when using range hoods, and oil stains will accumulate more and more, which will wrap the motor, so that the motor can not operate normally, and this is also a frequent problem.

Solution: 1. If there is a problem with the capacitor, it needs to be replaced with a new one for normal operation. When replacing it, you need to pay attention to choosing the same specification, you can go directly to the brand service store for consultation.

2. If there is a fault in the circuit, you can see whether the fan blades of the range hood can operate normally. If it is not the problem of the capacitor, the internal circuit of the capacitor is faulty, and the circuit needs to be replaced and repaired.

3. If there are many oil stains on the range hood, you need to disassemble the range hood and clean it, and you should also pay attention to cleaning the stains of the range hood regularly, so as to make the use of the range hood better.

1. The internal capacitor of the range hood is damaged or the capacitance.

Minish. 2. Sanitation is not done well, resulting in too many oil stains attached to the range hood. 3. The coil in the range hood produces a point short circuit.

4. The bearing of the range hood has been short of oil. Suggested treatment: 1. If the motor does not rotate and there is sound, then the capacitance is very small, at this time, you need to replace the new capacitor, and observe whether the scorch marks are relatively large, and replace a new capacitor of the same model to restore normal.

2. Sanitation of the range hood should be done every once in a while, only the normal operation of the range hood can be restored by removing oil stains, and soda water can be used.

and detergent and other detergents with relatively large oil capacity in the area. 3. The short circuit of the range hood coil is usually because the range hood and other major appliances share a socket, resulting in the home circuit being unable to support the operation of the range hood. If the coil has been burned, you need to contact the after-sales department to replace the new wire, don't use it again, otherwise there will be more trouble.

4. The bearing in the range hood will continue to accumulate dust, when it reaches a certain level, it will make the bearing lack of oil stuck, and the operation of the load will be louder and louder, you can use your hand to rotate to see if it is smooth, if it is not smooth, you need to clean the dust, and then use lubricant to make it run smoothly.

The range hood host is too dusty.

1. After turning on the range hood. The location is around the fan. You can use a slotted screwdriver to remove the retaining bolts at the corners of the cooling fan.

2. At this time, you can follow the cooling fan to find the power cord connected to the motherboard, and unplug it directly after finding it.

3. Take the cooling fan down.

Answer: After power-on, there is no rotating magnetic field formed in the windings of the motor, and the motor hums and the fan does not rotate.

Causes: (1) The starting capacitor is bad (high possibility). (2) One winding is broken.

It should be that the starting coil wire was accidentally pulled off, and there is a black box next to the motor, just remove the screws and plug in the thread. My house is in the same situation as you said, I just fixed it! Hope it helps.

The capacitor is broken, you can replace it with a new one, remember that the model is the same as the old capacitor when you buy it.

Replace the starting capacitor, 10 yuan 20 yuan or so, **buy 5 10 yuan.

The inside was greased and cleaned with Mr. Wittmann.

1. The motor wheel in the range hood has been deformed or aged. 2. There is no cleaning for a long time, resulting in dust in the internal motor. 3. The installation position of the range hood is unreasonable.

Suggested Treatment:

1. If the wind wheel is deformed, there will be a large amount of oil attached to the wind wheel, resulting in aging, the sound will become louder after aging, and the fan will not rotate if it is out of balance, so it needs to be cleaned first and then installed, generally speaking, it can be restored to normal, but if it is still not operating normally, then it must be replaced with a new wind wheel, and this process needs to be replaced by the master of the after-sales department.

2. When you usually use the range hood, you have time to clean it, if you really don't have time, you need to replace a range hood that can be automatically cleaned. The sanitation of the range hood is very important, if it is not in place, the typhoon effect is not good, the sound absorption effect is not good, and the noise will be very large.

3. When installing the range hood, we must urge the master to install it in a position with air circulation, if the air is not circulated, it will cause negative pressure in the air, so that air noise will occur, and the noise will be loud at this time, and the fan will not operate normally. And after installation, be sure to check whether the installation is firm, and then let the master go.

Analysis of the reasons why the range hood only buzzes and does not turn: 1. It may be that the range hood at home has not been cleaned for too long, and it is too greasy to jam the fan or motor of the range hood. 2. It is also possible that the capacitance of the range hood is broken, causing the range hood to just hum and not turn the ruler.

The range hood only buzzes and does not turn, and it is recommended to deal with filial piety: 1. If the range hood at home has not been cleaned for a long time, there is too much oil pollution, which hinders the rotation of the range hood.

It may be caused by poor lubrication of the motor and dry oil, and the wind speed can be rotated by hand, but whether the resistance is large and the rotation is not flexible, the lubricating oil should be added; It may also be that the starting capacitor capacity of the motor decreases, and the starting capacitor of the same capacity should be replaced.

Extended content: How a range hood works.

The range hood is installed on the upper part of the stove, turns on the power supply of the range hood, drives the motor, makes the wind wheel rotate at high speed, forms a negative pressure area within a certain space above the stove, and inhales the indoor oil smoke gas into the inside of the range hood, and the oil smoke gas is filtered through the oil mesh to carry out the first oil smoke separation.

Then enter the inside of the air duct of the hood, through the rotation of the impeller to the oil smoke gas for the second time oil smoke separation, the oil smoke in the wind cabinet is subjected to the action of centrifugal force, the oil mist condenses into oil droplets, collects the oil cup through the oil circuit, and the purified flue gas is finally discharged along the fixed path.

1. It may be that the range hood at home has not been cleaned for too long, and it is too greasy to jam the fan or motor of the range hood. 2. It is also possible that the capacitance of the range hood is broken, causing the range hood to just hum and not rotate. Suggested Treatment:

1. If the range hood at home has not been cleaned for a long time, there is too much oil pollution, which has caused an obstacle to the rotation of the range hood, and the range hood is heavily oiled, if it is not cleaned for a long time, it will bring a very big obstacle to the rotation of the range hood. Then turn on the range hood, and you can restore the function of the range hood to normal use. 2. Turn the fan of the range hood by hand, if you find that the fan blades can be easily rotated, then the capacitance of the range hood is faulty, then you need to replace a new capacitor, if you will not replace it, you can ask professional maintenance personnel to come to the door for maintenance, if the range hood at home is used for a long time, you can also consider replacing a new range hood.

In this way, the effect of the range hood may be better. The most common reasons for the range hood to hum without rotating are the above two faults, and it will work normally if it is handled.