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How to fix a propeller from a fan

Fan repair

I already talked about how to choose a floor for a room or an exhaust fan for the kitchen, bathroom or toilet. In the production of cheap models, the manufacturer saves on the quality of materials, so they break more often than more expensive analogues. If the fan has stopped working, then do not rush to throw it away, because to restore its performance in most cases you will not need a lot of time and financial costs.

I will not dwell on mechanical malfunctions such as the repair of impeller, body, rotation mechanism, etc. P. To eliminate these breakdowns, it is simply necessary to restore a worn or broken part or replace with a new. This article will consider issues on the repair of the electrical part of the fan, in which an electric motor with hum, unpleasant smells of the paired or seals are not turned on or works. For consideration, a more complex model of flooring will be taken. Built-in exhaust fans are much easier, due to the lack of speed switching unit, so it is even easier to repair them. But repairs, given the price of a simple model of an exhaust fan without bells and whistles, is inappropriate.

In order to find the cause of the fan malfunction, it will be necessary to disassemble it. It will be quite simple and fast to do it with your own hands. First, remove the protective grill, then the blades or impeller of the fan, which is fixed by the nut. Next, it is necessary to remove the second part of the protective lattice and unscrew the lid screws.

Restoration of the fan impeller using superglue

I won’t open America, many have heard about this method, but it was often mentioned that some special super-cliff needed, in this case I applied glue from a fixed and ordinary baking soda, I am satisfied with the result. Description from the on.board: Once I had a nuisance, the shoulder blades broke off the heater fan, as a result, a strong vibration was already higher than the second speed, and the contents of the glove compartment already vibrated on the third. At first I wanted to replace the fan, but I didn’t find anything suitable from the vase, they didn’t sell it separately at the analysis, and I decided to use the old grandfather’s way in the store, sodasperkley.

Tip cut the fan blade for the motor wind blows strong. How to make a good propeller

I bought a superglley in a fixed, I found soda in the kitchen. The technology is simple, we apply superclly to the surface where the blades were attached, and immediately sprinkle with soda, wait a little, and again superglings, and sprinkle, and so we build up the new “blade” layer behind the layer

It is better to do this operation in the open air, since pairs of cyanide are released into the air, which is poisonous, and a lot of heat is released, if you do at a fast pace, then the plastic is noticeably heated. I increased several blades at once, to let them cool

propeller

After the blade “grew” you need to let the glue to grab, checked for the cast, how it stopped stuck to the fingers, you can proceed to the turn. To do this, he used the suprafili, at first made flatly a blade flat, and then gave a round bend like other blades round.

Lada 2114 2008, gasoline engine 1.6 l., 81 l. with., front.wheel drive, mechanical gearbox. styling

I changed my whole, along with the casing, it works so that in the cabin you can’t hear. Or just my salon is generally satisfied

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Whats inside a BLADELESS Fan?

Well, yes, there was no other. One impeller too, I had to. Yes, and the motor itself was worn out, so the rumble stood, vibration. Replacing the impeller, I think, would not cost

Put this seemed to cool worse! I decided to return it back, took off the propeller and turned it on, directing the flow of air in his face, blows well! And then put the stock, tears flew out of his eyes! I think such a free test can draw any conclusions for themselves In 8 lobed impeller, a small slope, a small portion pushes the air, and 4 lobe, there the wings are more and curved stronger, the air pushes well, for this reason it makes noise stronger!

For me, Duck 8 cools better, it happens that you stand in a traffic light and drops from 103 to 93-95, and even threshed at 4 impudence between the traffic lights

I have 4 lobed for 30 seconds, I don’t know where even faster, but 8 lobed on the spot cools longer, but cools If 8 lobed really cool, I would not take it off! My test was enough for me to understand which impeller is more manufacturing 8 lobed there are pluses of course, it makes no less noisy and the speed of revolutions when turning on is minimal, because there is less resistance to air, where there is more resistance, it is more difficult for the engine to twist I’m not going to convince you, because that the impeller works, even if a little worse, there is nothing wrong with that! You need the right test on the stand, then you can safely say which one is more productive!

how to fix the broken swing of the electric fence? In this video, I will show you how to fix it, using glue glue glue and cotton only to connect broken plastic.

propeller

Fan repair from power supply server HP RX6600. This video can be used as a guide to repair ball bearings of any size

Когда лопасти наружного вентилятора или вентилятора конденсатора не выровнены, вентилятор вибрирует, как будто он не сбалансирован. I will explore the methods

The device is very noisy

Since the propeller of the aggregate, the main task of which is to create an air flow, is made of plastic (not always of high quality), then the probability of deformation of the latter is great. This usually happens if the unit is left for a long time under direct sunlight, or near a high temperature source. With deformation, the balance between the blades is disturbed, which causes strong vibration and noise with a normal air flow.

Also, vibration of the shaft can appear due to the sliding bearing of the bearing licking from the long-term operation.

Often when the device falls, when the blades are spinning, the protective grill is deformed. When the rotating propeller is hit, one of the blades may break.

Summing up, we can say that in different models of fans the main nodes and control elements may look different. But the principles of diagnosis and elimination of malfunctions do not change from this.

Diagnosis of malfunctions

There are 2 types of fault and desktop fans-mechanical and electric. It is to the first simple layman that does not pay much attention, and this leads to a breakdown in the electrical part of the device. For example, if the shaft is jammed, and the equipment continues to work, then this will undoubtedly cause overheating of the electric motor. If the bearing is spent, then the stator winding will be damaged in the future.

Before diagnosing the fan at home, turn off the device from power supply. The unit often does not turn on due to a malfunction of the cord or socket, so first of all, any other device is connected to the power supply. If it does not turn on, then the culprit is a socket that needs to be fixed.

To inspect the internal equipment of the fan, disassemble it, acting according to the following scheme:

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Since the breakdown is often associated with a lack of lubrication, be sure to drop a few drops of technological oil on the sleeve.

propeller

Take the shaft first in one, then in the other direction for better absorption of lubricants. After that, collect the fan in the opposite direction, turn on the device and check for performance.

clearly about how to disassemble the fan and conduct diagnostics of malfunctions, see this

Mechanical malfunctions

To detect malfunctions of the mechanical part of the fan device, pay attention to the following manifestations:

  • extraneous sounds (noise, whistles, creaks, etc. P.);
  • slow speed of rotation of the blades during operation;
  • Difficulties with the rotation of the propeller when the fan is turned off.

Problems in the electric part

The malfunction in the electrician is manifested by the following signs:

  • the smell of burning;
  • the impossibility of starting the unit;
  • slowing down the speed of the propeller mechanism with the device turned on;
  • The operation of automatic protective circuit breakers (if they are provided).

Breakage that can be eliminated independently at home

Deformation of the fan blades

Occurs quite often, since the propeller itself is made of plastic. Blades can be deformed under the influence of high temperatures. As a result of deformation, the blades are touched by the protective net, and there is a characteristic unpleasant noise. Usually deformation is eliminated manually, otherwise, the blades and protection will very quickly become completely unusable.

Deformation of the protective fence

It usually appears as a result of the fall of the floor fan. The fence itself is made of relatively thin metal wire and includes two parts. the front and rear. The front part is very easy to remove, but with the back you will have to tinker. The propeller is removed from the shaft of the electric motor, after which a large plastic nut is unscrewed and then the fence itself is removed. After straightening, the protection is collected in the reverse order.

Turning to the sides ceases

The main reason for this may be a disconnected crank. It is necessary to disassemble the body of the device and tighten the mounting screws if they are weakened or unscrewed. In addition, interruptions may occur in turning mode. To clarify the reason, the gear of the gear of the gearbox is checked, as well as the operation of the switch. If necessary, the gearbox is lubricated with a special lubricant. In the case of severe wear of the part, it is recommended to replace. In the absence of parts for replacement, the fan can be used in normal mode, without turning on the turns.

propeller

The circuit breaker malfunction

Can cause interruptions in work. To check its condition, you need to extract the switch and determine the state of contacts. If necessary, contacts are cleaned with sandpaper.

The fan does not work at all

In this case, you should check the serviceability of the electric motor. If it turns out that the electric motor is defective, then the repair of floor fans, in this case, is economically impractical.

I will not dwell on mechanical faults

such as the repair of impeller, body, rotation mechanism, etc. P. To eliminate these breakdowns, it is simply necessary to restore a worn or broken part or replace with a new.

This article will consider issues on the repair of the electrical part of the fan, in which an electric motor with hum, unpleasant smells of the paired or seals are not turned on or works. For consideration, a more complex model of flooring will be taken. Built-in exhaust fans are much easier, due to the lack of speed switching unit, so it is even easier to repair them. But repairs, given the price of a simple model of an exhaust fan without bells and whistles, is inappropriate.

fan malfunctions, it will be necessary to disassemble it. It will be quite simple and fast to do it with your own hands.First, remove the protective grill, then the blades or impeller of the fan, which is fixed by the nut. Next, it is necessary to remove the second part of the protective lattice and unscrew the lid screws.

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Diagnosis of malfunctions

There are 2 types of fault and desktop fans-mechanical and electric. It is to the first simple layman that does not pay much attention, and this leads to a breakdown in the electrical part of the device. For example, if the shaft is jammed, and the equipment continues to work, then this will undoubtedly cause overheating of the electric motor. If the bearing is spent, then the stator winding will be damaged in the future.

Before diagnosing the fan at home, turn off the device from power supply. The unit often does not turn on due to a malfunction of the cord or socket, so first of all, any other device is connected to the power supply. If it does not turn on, then the culprit is a socket that needs to be fixed.

To inspect the internal equipment of the fan, disassemble it, acting according to the following scheme:

Since the breakdown is often associated with a lack of lubrication, be sure to drop a few drops of technological oil on the sleeve.

Take the shaft first in one, then in the other direction for better absorption of lubricants. After that, collect the fan in the opposite direction, turn on the device and check for performance.

clearly about how to disassemble the fan and conduct diagnostics of malfunctions, see this

Mechanical malfunctions

To detect malfunctions of the mechanical part of the fan device, pay attention to the following manifestations:

  • extraneous sounds (noise, whistles, creaks, etc. P.);
  • slow speed of rotation of the blades during operation;
  • Difficulties with the rotation of the propeller when the fan is turned off.

Problems in the electric part

The malfunction in the electrician is manifested by the following signs:

  • the smell of burning;
  • the impossibility of starting the unit;
  • slowing down the speed of the propeller mechanism with the device turned on;
  • The operation of automatic protective circuit breakers (if they are provided).

Varieties of thermostats

Below we will briefly figure out the characteristics of each of them.

Electronic regulators

Thermoregulator with electronic filling includes three components:

  • temperature sensor;
  • a microprocessor responsible for the processing and transmission of information;
  • thermorelene, thanks to which control is carried out.

Electronic thermostats are used not only in oil heater, but also to organize the management of larger heating systems (for example, a “smart home”).

Electromechanical regulators

Electromechanical devices based on relay are much simpler than electronic devices. There are several types of electromechanical regulators:

  • Devices of the first group include a group of contacts and a double metal plate. When the equipment is heated, the plate isnd and, thus, opens the contact group. The consequence of the opening is the stopping of the supply of electricity to the heating plate. When the heater cools is cooled, the plate returns to the starting point, and the electron begins to work in the same mode, since the contacts are closed again. The cyclical work allows you to maintain the temperature level at approximately the same level.
  • Devices equipped with relay work on the principle of expanding its elements as a result of heating. The relay is a cylindrical pipe, which contains a substance responsive to heating. The pipe is in a container of water. When the heater temperature rises, the substance in the pipe expands. Когда температура достигает определенного значения, расширенное содержимое воздействует на электрическую цепь при помощи привода, в результате чего происходит замыкание или размыкание контактов. In this way, it is possible to avoid overheating of equipment.

Mechanical

The most simply arranged mechanical type regulators. Such thermostats are ordinary locking reinforcement. The design of the device includes a cylinder with a rod, which is filled with a thermally sensitive substance. As a result of the expansion of the substance when heated, the rod partially or completely overlaps the flow of the coolant in the system.

Author

Kerariel

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