How to repair a home fan blades

DIY fans repair: device and adjustment

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.

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.

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

Ventilation malfunctions in apartments

Extensive built.In fans are much easier in constructive terms. But their cost is small and often easier to acquire a new one than to look for details that disappeared from the turnover. Poor ventilation of the premises may not be associated with the operation of the device itself, but with errors when organizing an extract system.

Bathroom ventilation

With non.Working ventilation in the bathroom, the air becomes wet and does not ventilate, linen dries poorly, mold may appear.

Normal ventilation work scheme

• The ventilation hole is clogged with dust and web;
• Extraneous objects in the mine;
• Exhaust fan is installed for air retraction instead of the removal.

The right option for solving the problem would be an appeal to the management company. Experts lower the load to the ventilation shaft to the very apartment to break through all the obstacles. In particularly neglected cases, the camera is lowered into the mine to determine the location of obstacles. The ventilation shaft is opened from the entrance. You may have to go around the riser’s neighbors and check if they have incorrectly installed fans that violate the hood.

Advice! For the bathroom, an exhaust fan with a check valve is suitable, preventing air flows from the ventilation shaft.

Hood in the kitchen

Exhaust ventilation is designed to remove unpleasant odors and stale air from the apartment. However, in case of violation of construction technology or due to other reasons, the air begins to enter the apartment from the exhaust opening, despite the working fan.

Pollution of the ventilation shaft

Because of this, extraneous smells arise in the apartment. Cooking products are not excreted from the kitchen. The reasons may be as follows:

• Defects in the design of ventilation shafts and channels create reverse traction;
• Strong gusts of wind in one direction blow air flows into the mine;
• Accumulations of steam mass and frosty air in ventilation;
• Mine pollution by snow and waste.

As a result, the axial fan pulls the air masses from one mine to another and the hood begins to work silently in the opposite direction.

To solve shortcomings, it is better to invite specialists. They will evaluate the rationality of the use of equipment in accordance with the documentation and conduct a qualitative examination of the installation and operation of the ventilation system. The received report will indicate all the shortcomings of the existing system and measures to correct them. Criminal Code employees are required to clean ventilation shafts from foreign facilities. Also, a deflector for sucking smoke and creating through air flows is installed in the exhaust traction effect in the hood.

Problems with cooler

It often happens that the fan blades do not spin, although the engine in the product is completely serviceable. The reason may be:

The reason for the failure of the capacitor can be sharp surviving voltage surges in the mains. In this case, the repair of the fan, as usual, begins with its disassembly. In most models, the capacitor is located immediately behind the central flange. To get it, you must first remove the engine and disassemble the power supply. In some models of fans of the capacitor, the presence of a crank may interfere with which the owner will have to remove the flange.

In this case, the repair of the floor fan will be limited to checking the capacitor capacitance. To measure the resistance on the guides, the home master will have to use a special tester. If the readings of this device exceed 50 Ohms, then you should purchase a new capacitor.

Search and elimination of malfunctions during the repair of a household fan

Before proceeding with your own hands, it is necessary to study the scheme of the device. As a rule, an asynchronous electric motor is placed in the floor fan, consisting of eight windings (working and starting). For a successful launch, a phase shift is required by 90 degrees. For these purposes, the capacitor is installed. The device begins to work after pressing the turning button, after which the indication light lights up and the engine starts, the rotation speed depends on the switch of the windings, for which the switch 3 of the speeds with mechanical locking of the simultaneous turning on several buttons, in which short circuits may occur, is possible.

Before proceeding to check the electric motor:

• Immediately you need to check the serviceability of the connection cord to the electrical outlet. To do this, you must first disassemble the switch block, and then, in compliance with electrical safety measures, check the presence of 220 volts on the contacts of the light bulb with a multimeter.
• Check the serviceability of the capacitor according to this instruction.
• Call integrity and check the reliability of all contacts of wires and connections in the circuit. Barling instructions.
• If a rumble or noise is heard during the fan, then lubricate the plastic parts inside the gearbox with a lithol or solidol through the holes, which are specifically provided for in it.
• Check the presence of 220 volts at the output from the switch button on.

The cooler does not spin on the processor, power supply or video card

If the cooler does not spin on the processor, on the video card and in the power supply, then you may have two reasons.

The first reason, the most common and not costly, the cooler stopped spinning because his lubricant has dried up and, after one drop of oil, he will serve you faithfully.

The second reason, this is the failed cooler, you can check it with a multimeter in the call mode, if it is nicknamed then the cooler in the working condition. You need to nickname black and red wires.

How a computer cooler works?

Almost all computer cooling fans are designed around the assembly of sliding bearings, although I encountered some computer cooling fans that use the ball bearings node. In this article I will dwell on the assembly of sling bearings.

The sliding bearing node consists of a shaft (to which the fan blad is attached), which rotates inside the fixed cylinder. In this case, the cylinder is made of porous metal impregnated with oil. As the shaft rotates, the oil is pushed out of the cylinder, creating an oil film along which the shaft moves. This oil film prevents metal contact on metal and thereby eliminates friction and almost all the noises. This type of bearing bearing bearing is shown in the figure above.

The sliding bearing knot consists of a shaft, which rotates inside a fixed cylinder.

In an ideal bearing node, the amount of oil in the bearing is the right amount and remains constant throughout the entire duration of the fan. However, if the assembly is not properly sealed, part of the oil may dry over time. When this happens, the rotating shaft will come into direct contact with the motionless cylinder, which creates the sound of a scraping or grinding.

In addition to the noise, increased friction will lead to rotation of the fan slower, which, in turn, will reduce the flow of air. If the air flow is reduced, the system will operate more hot than it should, which exposes certain components to the risk of failure. Replenishment of the oil supply in the sliding bearing node will change this condition.

How to lubricate the cake of a video card and processor

To lubricate the culer of the video card, you must first remove the video card on it will be a cooler with a radiator, it is desirable if you have not changed the thermal grease for a long time to remove the cooler with the radiator and at the same time change thermal grease, read how to properly apply thermal papard here. Under the cooler’s blades will be located mainly 3 bolts unscrew them and disconnect the cooler from the radiator but should go without effort.

On the back of the impeller, there is a sticker also peel off and look if there is a plastic or rubber lid, then remove the lid and roll a drop of oil, scroll with your fingers and collect everything in the reverse order.

If there is no lid behind the sticker, then we take a drill from 2-4 mm, and the drill can be if there is no drill, you can scroll the drill with pliers or eat with a knife if there is nothing at all, remove the plastic chips and drip 1-2 drops of oil and sealed the drilled hole so that the oil is to nowhere Did not go away.

With the lubrication of the processor cooler, mostly almost all the same is the only different fastening of the cooler to the radiator. It can be fixed with latches or attached with bolts. There are also types of coolers where you do not need to disconnect the cooler from the radiator to lubricate, on them the cooler stands immediately the side we need.

How to lubricate the cooler of the power supply and the cooler of the system unit

To begin with, unscrew the cooler in the computer, disconnect the wires going to the cooler, clean the dust, and lay it on the table, if this cooler is from the power supply or cooler from the removal of warm air from the system unit, then carefully remove the sticker on the opposite side of the blades. There should be a sealing gum or a plastic cover that needs to be opened and drip a drop of oil using a syringe.

Then scroll the cooler’s blades with your fingers so that the oil is distributed evenly over the entire surface. Next, close the sealing rubber plug, and glue the sticker, if the sticker is not glued, then we glue it a piece of isolation.

There are also non.Vegetable coolers for their sticker there is no rubber seal there, a plastic insert is soldered there. However, this type of cooler can be lubricated, but it is more complicated. But some indispensable coolers do not fix the washer, so the impeller can exit with slight efforts with your fingers, try to separate the cooler’s blades from the body without strong efforts if the cooler’s blades are separated, then grease the shaft with oil and insert it back if not, then read it further. To lubricate the indispensable cooler, we will need a drill or pliers and a drill not too large 2-4 mm in size. We drill a hole in the center, just be careful, do not overdo it and do not damage the shaft and bearings, remove the plastic chips from the hole, then drip 1-2 drops of oil into a drilled hole, preferably using a syringe. After lubrication, scroll the cooler’s blades for uniform distribution of oil and close the hole with electrical tape or something else to your choice, the main thing is that the oil does not run back.

I advise you not to pour oils to the very edges since excess oil will still flow out.

How can you lubricate the cooler

Many people use WD-40 to lubricate all types of creaky or noisy mechanical components around the house and office. But do not try to use WD-40 to lubricate the computer fan. WD-40 is designed as a cleaner / degreaser, which can be used to weaken stuck parts, prevent corrosion and displace water-all types of problems that are usually not found in computer fans. WD-40 is also a light lubricant, which is better lubricates something like a hinge that only sometimes moves, and not a component of a computer, such as a fan that constantly moves at a high speed.

Do.It.Yourself floor 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, therefore they break more often than more expensive analogues.

If the fan has stopped working, then do not rush to throw it away, because in most cases it will not need a lot of time and financial costs to restore its performance in most cases.

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, therefore they are even easier to repair. However, repairs, given the price of a simple exhaust fan model without bells and grounds, is inappropriate.

In order to find the cause of the fan malfunction, it will be necessary to disassemble it. It will be simple and quickly 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. Then it is necessary to remove the second share of the protective grate and unscrew the screws of the lid.

Search and elimination of malfunctions during the repair of the household fan

Before you start repairing with your own hands, it is necessary to study the scheme of the device.

As if the rule, an asynchronous electric motor is placed in the floor fan, consisting of eight windings (working and launch). For a successful launch, a phase shift is required by 90 degrees. For these purposes, the capacitor is installed.

The device starts to work after pressing the turning button, after which the indication light lights up and the engine starts, the rotation speed depends on the switch of the windings, for which the switch 3 of the speeds with mechanical locking of the simultaneous turning on several buttons, in which short circuits may occur, is possible.

Before proceeding to check the electric motor:

• At once it is necessary to check the serviceability of the connection cord to the electrical outlet. To do this, first disassemble the switch block, and then, in compliance with electrical safety measures, check the presence of 220 volts on the contacts of the bulb by a multimeter.
• Check the serviceability of the capacitor according to this instruction.
• Call integrity and check the reliability of all contacts of wires and connections in the circuit. Building manual.
• If a rumble or a rumble is heard during the fan, then lubricate the plastic parts inside the gearbox with a lithol or solidol through the openings, which are specifically provided for in it.
• Check the presence of 220 volts at the output from the switch button on.

Do.It.Yourself repair of the electric motor must start with the lubrication of bearings, very often after that the fan begins to work normally. The shaft of the motor rotates in plastic bushings.

For lubrication, machine oil is suitable- drip a couple of drops of butter under the slope of a kind of so that it will flow in the inside of the sleeve, and then unit the shaft back and back along the axis until it starts to easily contact the axis until it starts to contact.

The probability of breaking the engine rotor is relatively small and in my practice of repairing household appliances there was not so far, because the Roth (current occurs in the rotor) under the influence of stator windings.

Often, in one of the stator windings occurs in the electric motors of household fans. If at least one winding is cut off, then the engine will not work at all. To check, quite sharply twist the blades clockwise. Just immediately remove your hand from the blades so that you would not get an injury.

If after that the floor fan works, then one of the windings burned out. Keep in mind that when the winding connected from the capacitor, the fan will not work in any case. To determine the integrity of all windings, I recommend that you call them a multimeter according to this instructions.

Keep in mind that the resistance of the winding should not be too high or zero.

It is very important before turning off the wires from the windings do not confuse them when connecting, because before the wires to remove the wires, apply them that distinguish them, if they are the same color. Before removing wires or starting to disassemble with my own hands of any devices, I always take photos of all stages. If there are then questions or doubts when assembling, then the photos are greatly helped out.

If the stator winding is cut off or burned out. Given the price of a floor or built.In fan, I do not recommend the rewinding or repair of the winding. In this case, it is more advisable to purchase a new model.

The service life of the fan electric motor is reduced by several one. If you do not clean it periodically of dust and dirt, but that if it is not time to lubricate bearings or gearboxes.

• How to choose the right fan or hood for the kitchen
• How to check and make an asynchronous electric motor
• Jumpers for window and doorways: types, dimensions, installation features
• Tables with a “draining” wooden countertop
• How to connect an electric motor 380 by 220 volts with a capacitor
• How to do it with your own hands grounding in a private house

How to fix a home fan ourselves or the heat does not care

I was too lazy to write this material in the summer, but nevertheless it will come in handy for the next shitty winter)))

Despite. That the summer has ended, but that long heat that has finished us in every sense, many will remain in memory for a long time. I already wrote several recipes that I saved myself from the heat. But the most popular remedy for all the tops of the hit parades of household stores and household appliances became a fan and air conditioning.

How to disassemble the floor fan

From what was said is clear: there is nothing to break inside the floor fan. This is an engine and capacitor. The rest falls on the mechanical part, gearbox. If there is a whistle and noise, try to grease the gears. How to do this is clear from what was said. In the gearbox body, a pair of holes for these purposes. Solidol will fit for plastic parts.

Self.Repair of the floor fan should not cause much difficulty. Replace the engine with a suitable weight and size. The main types of breakdowns relate to the mechanical part, the restoration is carried out by conventional (welding plastic with polyethylene) with skillful hands.

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Good afternoon! Thank you for the article. True, I was waiting for everything. When will you tell me how to fix the counter itself with the cross.Shaped holder. Because it is she who distinguishes the “floor” from the desktop. I have a “turntable” mechanism so far works. But the holder-native part broke. It consists of 4 horizontal legs and a cunning mechanism, to which they are all attached on screws. Precisely: Model F10 Breville. How can I get out of my situation?

You need to contact the turner. He will make this part with duralumin, profiles all seats and the fan will work in all modes. From plastic, details often break.

Ventilation malfunctions in apartments

Extensive built.In fans are much easier in constructive terms. But their cost is small and often easier to acquire a new one than to look for details that disappeared from the turnover. Poor ventilation of the premises may not be associated with the operation of the device itself, but with errors when organizing an extract system.

Bathroom ventilation

With non.Working ventilation in the bathroom, the air becomes wet and does not ventilate, linen dries poorly, mold may appear.

• The ventilation hole is clogged with dust and web;
• Extraneous objects in the mine;
• Exhaust fan is installed for air retraction instead of the removal.

The right option for solving the problem would be an appeal to the management company. Experts lower the load to the ventilation shaft to the very apartment to break through all the obstacles. In particularly neglected cases, the camera is lowered into the mine to determine the location of obstacles. The ventilation shaft is opened from the entrance. You may have to go around the riser’s neighbors and check if they have incorrectly installed fans that violate the hood.

Advice! For the bathroom, an exhaust fan with a check valve is suitable, preventing air flows from the ventilation shaft.

Hood in the kitchen

Exhaust ventilation is designed to remove unpleasant odors and stale air from the apartment. However, in case of violation of construction technology or due to other reasons, the air begins to enter the apartment from the exhaust opening, despite the working fan.

Because of this, extraneous smells arise in the apartment. Cooking products are not excreted from the kitchen. The reasons may be as follows:

• Defects in the design of ventilation shafts and channels create reverse traction;
• Strong gusts of wind in one direction blow air flows into the mine;
• Accumulations of steam mass and frosty air in ventilation;
• Mine pollution by snow and waste.

As a result, the axial fan pulls the air masses from one mine to another and the hood begins to work silently in the opposite direction.

To solve shortcomings, it is better to invite specialists. They will evaluate the rationality of the use of equipment in accordance with the documentation and conduct a qualitative examination of the installation and operation of the ventilation system. The received report will indicate all the shortcomings of the existing system and measures to correct them. Criminal Code employees are required to clean ventilation shafts from foreign facilities. Also, a deflector for sucking smoke and creating through air flows is installed in the exhaust traction effect in the hood.