Paul fan began to rotate slowly

Do.It.Yourself floor fan repair

In the case when the fan does not pull and poorly drives the air, you will need to disassemble the case in which the motor is located. Sometimes the fact that the propeller does not spin can signal the lubrication insufficiency in the sliding bearing installed in the electric motor.

Dismantling the fan is as follows.

First you need to unscrew the protective grid (its front part) and remove it. After the grid, disconnect the propeller. He can be screwed to the shaft of the motor with a nut with left thread. That is, to unscrew the nut, rotate it clockwise, and for its twisting it is counterclockwise. Remove the rear protective net by unscrewing another nut. Unscrew all the fasteners holding the casing of the unit. Sometimes in the handle to adjust the rotation of the case there is another bolt. If it is not unscrewed, it will not work to remove the motor casing. Now, the engine is open, drip a few drops of machine oil (it is better to use spindle oil) on the sleeve (indicated by the red arrow) and turn the shaft several times in different directions so that the lubricant is absorbed inside. After this procedure, a slight rotation of the shaft resumes. Collect the motor body in the reverse order. Turn on the unit and check the air flow strength.

Reasons why the floor fan does not work. The connection diagram and how to fix it with your own hands.

In the hottest summer days, the only salvation from the exhausting heat, is the usual floor fan.

Not everyone can afford a full.Fledged split system or at least a mobile air conditioner.

But unfortunately, this inexpensive and affordable windmill, from time to time breaks. Especially fly like seeds Chinese models.

And there are vast majority in our market. What to do if the fan has stopped rotating and working? What are his main sores and because of which he breaks?

In total, 5 main reasons for the failure of floor fans can be distinguished:

The main problem of cheap models, which for some reason few people pay attention to-incorrect casting blades. Because of this, an imbalance occurs, bearings are broken, gaps increase.

You can’t influence this in any way, as you already bought a fan with such an initial defect. Sometimes it seems to work, the impeller rotates normally, but does not blow.

That is, there is no cooling air flow from it. Why is it happening?

Due to the wrong corner of the attack of the blades. Its petals are deformed and drive an air flow in a circle, and do not throw it out.

This effect can appear over time, after the fan stood for a long time under the straight rays of the sun and its impeller heated, began to gradually change its shape.

It is treated only by replacing the impeller with a new.

The most common problem is the dried lubrication or its lack. The fan begins to wedge, lose speed and, as a result, the load on the engine increases. Vetrodui no longer works in full force.

The engine wound up with a thin wire of 0.2mm begins to heat up and the windings gradually burn out.

How a similar defect is detected? In this case, the fan ceases to rotate. He is buzzing, but the impeller does not spin.

It also happens that it starts only at 3 speed, and does not react to the first two at all. He just does not have enough power to turn the shaft.

In order to start it, you have to sprout like on old aircraft in an impudent.

By the way, the same symptom may be with damage to the start.Up capacitor. How to find out without devices what reason is to blame for the breakdown?

To do this, at least get to the engine shaft, removing the protective casing and blades. If the shaft by hand will rotate with great difficulty, then blame dirt and dried grease.

And if he spins easily and he has inertia, then most likely a conder was covered. Symptom. Turned on the fan in the outlet, but it does not spin. At the same time, scroll into a impudent motor and it starts.

If you hold the fan blades when working with your hand, it can stop again. The capacitor is checked by a multimeter if it has an appropriate capacity measurement scale.

To replace, select a new conder according to the same parameters that are indicated on the body of the old.

By the way, a dried.Up capacitor has not yet been fully affected, also affects the moment. If you notice that they fell from you and the fan began to spin slower, this is a bell to check it.

Why the fan does not work

In total, 5 main reasons for the failure of floor fans can be distinguished:

The main problem of cheap models, which for some reason few people pay attention to-incorrect casting blades. Because of this, an imbalance occurs, bearings are broken, gaps increase.

You can’t influence this in any way, as you already bought a fan with such an initial defect. Sometimes it seems to work, the impeller rotates normally, but does not blow.

That is, there is no cooling air flow from it. Why is it happening?

Due to the wrong corner of the attack of the blades. Its petals are deformed and drive an air flow in a circle, and do not throw it out.

This effect can appear over time, after the fan stood for a long time under the straight rays of the sun and its impeller heated, began to gradually change its shape.

It is treated only by replacing the impeller with a new.

The most common problem is the dried lubrication or its lack. The fan begins to wedge, lose speed and, as a result, the load on the engine increases. Vetrodui no longer works in full force.

The engine wound up with a thin wire of 0.2mm begins to heat up and the windings gradually burn out.

How a similar defect is detected? In this case, the fan ceases to rotate. He is buzzing, but the impeller does not spin.

It also happens that it starts only at 3 speed, and does not react to the first two at all. He just does not have enough power to turn the shaft.

In order to start it, you have to sprout like on old aircraft in an impudent.

By the way, the same symptom may be with damage to the start.Up capacitor. How to find out without devices what reason is to blame for the breakdown?

To do this, at least get to the engine shaft, removing the protective casing and blades. If the shaft by hand will rotate with great difficulty, then blame dirt and dried grease.

And if he spins easily and he has inertia, then most likely a conder was covered. Symptom. Turned on the fan in the outlet, but it does not spin. At the same time, scroll into a impudent motor and it starts.

If you hold the fan blades when working with your hand, it can stop again. The capacitor is checked by a multimeter if it has an appropriate capacity measurement scale.

To replace, select a new conder according to the same parameters that are indicated on the body of the old.

By the way, a dried.Up capacitor has not yet been fully affected, also affects the moment. If you notice that they fell from you and the fan began to spin slower, this is a bell to check it.

The problem of tight rotation is solved by a new lubricant of bearings. Here are used, the so.Called sliding bearings. Someone calls them bushings.

Apply balls in such designs is expensive, and they thunder over time, they be healthy. For repair it is not at all necessary to disassemble the entire engine entirely. It is enough to unscrew a few cogs and spray to the right places with the universal aerosol WD40.

How to get to the bushings without removing the engine? To get started, unscrew the central screw on the back wall of the protective casing.

Another self-tapping screw is hidden in the adjustment button for turning or stopping at the fan head.

After that, the back cover is easily removed from its place. What is under it? Here you can see the gearbox of the rotary mechanism that gives rotation to the whole head.

A special thrust is suitable for him from below.

The starting condenser of the engine is fixed on top.

By the way, keep in mind that in different models it may not be there. In this case, look for it near the speed buttons.

To access the engine bearing, you will need to remove the gearbox. It is attached on three screws, and properly propped up with a traction.

Twist the screws and disconnect the craving. After that, the gearbox is removed from the shaft and you get access to the rear hub.

You don’t need to unwind anything else and disassemble. The rest will be made for you.

Problems with blades

Since plastic is used in the manufacture of blades, this part of the fan is very susceptible to external mechanical influences. As a result, the blades are often deformed and broken if any extraneous items fall behind the grid. In this case, to fix the fan, the owner needs to dismantle the protective net. The back cover can stay in its place. There is no need to shoot it. The protective grid is held by a special clamp in the form of a plastic cap. It is easy to turn it with your hands. After the clamp is twisted and the protective grid is removed, a special lining is disconnected that fixes the blades. This stage of work can be performed without the use of tools. Blades are subject to replacement if they are very deformed. If during the operation of the fan there is a slight friction about the protective grill, then they are easily aligned with their hands. According to fan owners, plastic blades bend very easily.

Do.It.Yourself floor and desktop fan repair

After detecting a problem with the fan, you can proceed directly to the repair. First prepare the necessary tools and materials depending on the type of malfunction. The first thing that is checked after the diagnosis of the cord, forks and sockets is the serviceability of the electric motor. Often the problem is the microcircuit, so first determine the level of flow rate on the fee and the output from the chip. In the absence of voltage, the problem lies in the breakdown of the microcircuit, which can be replaced.

If the current goes to the microcircuit, and the floor or desktop fan does not turn on, you will have to disassemble the case and check whether the current comes inside. If not, the problem is the electric motor, so you have to give the motor for repair.

• Disconnect the two wires connecting the electric power and the microcircuit;
• Also do with 2 wires going from board to the motor;
• Assume a new microcircuit.

There is an option in which the fan will work without a microcircuit, that is, directly, so the device will be included immediately after installing the cord in the outlet. To do this, do similar actions with wires, but instead of installing the microcircuit, they are connected to each other.

To understand how to make a fan repair yourself, you need to know the principle of operation of the device. Scheme:

• Asynchronous type, installed on standard floor and desktop fans, has 8 launch and working windings;
• To launch the phase is shifted by 90 degrees using the capacitor;
• The launch is carried out after pressing the power button (first the red indicator turns on, after the electric motor begins to rotate);
• The speed of the rotational moment is affected by a 3-speed switch that has mechanical locks of simultaneous speed switching.

Read about how to make a fan of cooler and disk with your own hands, here.

Replacement of the rotor

The rotor is usually on the gasket under the lid or behind the shaft, so the engine is removed for its repair or replacement with screwdrivers. The first thing to do is to inspect the wiring that can be the cause of the malfunction. If there are no defects on it, you will have to change the rotor, since it is not possible to repair it yourself. Be sure to write down the number of the device and purchase exactly the same model.

• Disconnect the wire leading to the rotor;
• Unscrew the screws;
• Remove the device;
• Put a new rotor, tightly screwed to the base.

If the gasket is not deformed, it is pointless to replace it with a new option. Use the old element. Keep in mind that the rotor should not touch the electric motor.

How to fix a control unit?

The control unit breaks due to worm gear. This problem can be eliminated independently by following the instructions:

• Remove the contact block (the motor does not need to be removed);
• If there are gaskets for the managerial unit, remove them;
• Twist the shaft with a screwdriver;
• Remove the control unit;
• Dismantle the lid behind, opening access to worm gear;
• To check the performance, use the tester (without breakdown, the resistance parameters should not exceed 50 Ohms);
• In case of violations, replace the old element with a new.

What to do if the flange broke?

In floor and desktop fans, plastic flanges are used, which are easily damaged, especially when the device falls. Therefore, replacement is required. How to do it:

• Unscrew the rear cover near the motor or shaft depending on the model;
• Remove the crank;
• Disconnect the worm gear without removing the control unit;
• Remove the switch;
• Twist the screws from the flange and disconnect it;
• In the reverse order, install the new flange.

If the model involves the location of the flange near the managerial unit, then first release the clamping bar, then twist the control unit, remove the gasket located near the rotor.

Fixing of the diffuser

Diffuser is in the control unit. The reason for its breakdown is to twist the regulator. Change it as follows:

• Remove the top cover without touching the engine;
• Disconnect the central flange;
• Remove the control unit;
• Remove the diffuser from the rear (Put the base with a screwdriver or knife);
• Replace the new element.

It is problematic to buy a diffuser separately in stores, as it is equipped with a control unit, so in this case the entire block is most often changed.

Coler repair

If a part with a propeller and blades is broken, use the following tips:

• With the usual deformation of the impeller against the background of overheating, it is necessary to extract the propeller, slightly warm the blades and leve so that they do not touch the protective grid of the fan.
• If the blades are broken, you will have to buy a new propeller and install it yourself.
• If a small part of the cooler is torn off, the fragments can be glued with reliable glue.

How to repair a capacitor?

The capacitor usually breaks due to unexpected voltage drops in the electric network. The part is located behind the central flange. The cause of the malfunction is the absence of a phase shift or a power to receive a winding. The main feature is no rotation. The capacitor malfunction is checked using a multimeter (measurement mode. Resistance).

Before measurement, discharge the device to a minimum (just closed the conclusions together). After contact with probes, follow the readings:

When buying a new device, pay attention to the voltage and capacity of both capacitors. They should be equivalent. How to replace:

• Remove the electric motor from the body;
• Disassemble the power supply;
• If the crank interferes, remove it and the flange (depending on the model);
• Disconnect the capacitor, install a new.

How to repair speed switch?

If the speeds do not switch, look for the problem directly in the switch. To do this, do the following:

The method of adjusting the speed of the floor fan engine

Nothing is said about the method of regulating speed, it is not surprising. In the considered model, four wires come to the coil, one supplies a plug. Three others enter the winding through fabric cambrices. What is inside for certain unknown. The choice is small, an asynchronous engine with an isolated rotor is controlled in two ways:

Inverter management does not take into account, in this case, there is simply nowhere to fit such a complex scheme. The regulation of the voltage amplitude remains. An unequal number of turns sits on each of the wires. One speed (two) will fail, Cambrows will have to be cut, therefore, the electrical circuit of the engine will become obvious. A reinforcing master will wind a new coil, the lazy will take money from the client to buy a new engine (the old one will let it on a color).

Indirectly, the number of turns is recognized through the ratio of resistance between the conclusions of each speed. The tester uses a constant voltage to measure the value, so the inductive part of the impedance is thrown out of the consideration. The number of turns is directly proportional to the ohmic resistance of the winding site.

The method of adjusting the speed of the floor fan engine

Nothing is said about the method of regulating speed, it is not surprising. In the considered model, four wires come to the coil, one supplies a plug. Three others enter the winding through fabric cambrices. What is inside for certain unknown. The choice is small, an asynchronous engine with an isolated rotor is controlled in two ways:

Inverter management does not take into account, in this case, there is simply nowhere to fit such a complex scheme. The regulation of the voltage amplitude remains. An unequal number of turns sits on each of the wires. One speed (two) will fail, Cambrows will have to be cut, therefore, the electrical circuit of the engine will become obvious. A reinforcing master will wind a new coil, the lazy will take money from the client to buy a new engine (the old one will let it on a color).

Indirectly, the number of turns is recognized through the ratio of resistance between the conclusions of each speed. The tester uses a constant voltage to measure the value, so the inductive part of the impedance is thrown out of the consideration. The number of turns is directly proportional to the ohmic resistance of the winding site.

Closing windings or wiring

If the damage is more complex and simple lubrication does not help, you will have to disassemble the fan in more detail.

First you do all the fraud on disassembly as indicated above. After removing the propeller, unscrew the plastic front counter.Gaming, which is located immediately behind him, and throw off the entire protective frame.

In your hands you have the engine itself and the leg in which the power wires pass and the button mechanism is located.

Distribution of this leg, having unscrewed 6 screws.

First of all, check the rations of the wires. It is possible one of them, or even somewhat fell off or burned out.

If everything is intact, how to understand which wire goes where and what is responsible for? Start checking with two wires from a fork for a power plug.

One of them, let it be black (as in the photo below), through the lighting light goes directly to the fan engine.

The second wire enters the lower terminal of the outline switch (button 0).

Further, by pressing the corresponding buttons-1st speed, 2nd, 3rd, certain contacts of the switch are closed, and thereby the engine speed changes.

Each wire from these buttons goes to its conclusion on the winding, with a larger or smaller number of turns. Giving tension to them, you make the propeller spin faster or slower.

Possible breakdown of Timberc fans

Timberk fans have established themselves as inexpensive and convenient devices, to create comfortable climatic conditions, to maintain air exchange in the apartment or office. Despite the good quality, they are affected by breakdowns.

During operation, buyers were noticed by the following malfunctions:

• A drop in blowing strength due to soft plastic blades;
• I am cases when the capacitor fails;
• The appearance of extraneous noise during work;
• Electric motor breakdown;
• The rotor breaks;
• Strong play appears;
• With prolonged work, the smell of burning oil appears;
• Legs bend and change geometry under the weight of the motor;
• Overheating of the power supply;
• Mechanical breakdowns in the places of fasteners.

In terms of price-quality ratio, Timberc products are a leader in his segment. All devices have a guarantee of the manufacturer and can be replaced when contacting the service.