Electric hair dryer. Types and device

At least once in her life, every woman faces the problem of a hair dryer breaking down during the most inopportune moment. , if another working device is ready in the wings. But often there is no such option, and we urgently have to solve the problem. You can contact service center, or you can try to fix the damage at home. To repair a hair dryer with your own hands, you need to understand the principle of operation of this device.

Design

Different manufacturers offer many models that differ from each other in shape, color and availability. additional functions. However, one thing remains unchanged. Whatever hair dryer you buy, the design principle is almost the same; therefore, when making repairs, you need to pay attention to the same problems.

First, let's study how a hair dryer works. Main details of the inside of the hair dryer:

engine,

fan,

heating element,

electrical circuit.

At the same time, the electrical circuit is quite simple, and there is nothing more complicated than a thyristor. The hair dryer box is either plastic or metal, but both are secured with different types of bolts.

Therefore, before starting repairs, prepare the right tool. Often the house does not have a suitable screwdriver or socket to unscrew a bolt. In addition to bolts, there may be special latches on the body. Proceed with caution - the fasteners are easy to break. Don't pull too hard without knowing if you're opening correctly. Sometimes important elements hidden by a sticker.

We inspect and repair your hair dryer yourself

Before you begin inspecting the device, you must unplug the hair dryer. When working with any electrical device, you must strictly follow all safety rules. We are now counting on a reader who has not received a technical education, but has simply encountered a problem and wants to solve it without extra costs and loss of time. Before you start inspecting the hair dryer itself, check that the outlet is working properly by connecting some other device or table lamp. If everything is in order and the socket is working, move on to the hair dryer.

The cord can also act up in a professional Philips hair dryer.

This is the first thing we pay attention to, and first we check its integrity. Often the cause of breakage is the sharp teeth of a pet. We inspect both the cord itself and the plug. If no problems are visible from the outside, we disassemble the hair dryer and look inside.

Contacts or soldering may have become loose and come off. We act as we discover a problem: twist or solder, connect the broken ends of the wire and wrap it with electrical tape. It's best if you replace the cord. You can use a whole cord from another device.

Switches

The problem may also be a broken switch. In this case, it is possible to close the circuit without the involvement of a toggle switch until you find a suitable replacement.

In this case, the hair dryer will start working as soon as you plug the plug into the outlet. Moreover, after opening the case, carefully examine the inside for the presence of carbon deposits or melts. The charred parts need to be replaced, and the carbon deposits must be removed with an eraser, and then wipe everything off with alcohol.

The fan is covered not only in Daewoo di 6805s

Often in women, especially those with long hair, the fan blades become clogged with hair elements, and the hair dryer stops working. To repair, you need to carefully clean the fan blades, filters, and motor axis. This can be done either with your hands or with a brush.

Is the spiral broken? Repair instructions

If the device overheats frequently, a breakdown of the spiral may become a problem. Most often it just burns out. Upon careful examination, you can immediately see what the reason is. After detecting a break in the spiral, you can make a replacement by purchasing a similar option. Spiral repairs are also allowed. You can do this:

twisting the ends together

soldering the torn place,

connect the spiral using copper wire or tube.

It is worth noting that the replacement ceramic element Usually the procedure is not cheap, so if you are not sure of the correctness of your actions, take the new element and hair dryer to a specialist.

The motor fails in hair styling devices

This is the most difficult option in this case, since repairing the engine requires certain knowledge and skills. Having examined the motor, we can conclude whether the cause of the breakdown is in it or not.

If, when you turn on the hair dryer, you notice a strong crackling sound or a spark, then the motor is to blame. After inspecting the housing, windings and brushes, take the motor to a workshop or find the same new one and replace it. After replacement, we recommend lubricating the parts so that movements occur smoothly, without friction.

Microcircuits

If the problem is not found in the above parts of the device, then it may be hidden in the microcircuit. There are several possible breakdowns here:

a crack in the getinax and a break in the track: solder this area;

damage to the capacitor: swollen parts are removed and replaced with new ones;

burnt resistor: darkened elements are also replaced with new ones.

Heating regulator

This part protects the hair dryer from overheating. If it breaks, it does not allow the hair dryer to turn on at all. IN in this case you can either replace the broken part, or remove the regulator from the circuit and make a closed circuit. By plugging the hair dryer into the outlet, you will see whether the steps helped or whether the problem lies elsewhere.

Despite the fact that we have reviewed almost all possible breakdowns, there are cases when everything listed is checked, but the hair dryer still does not work. In such cases, it is better to contact a specialist. Moreover, the hair dryers used by hairdressers, that is, the professional line, have complex design, and repairing such models is much more difficult. Simple and inexpensive options may be disposable and cannot be repaired.

WATCH VIDEO INSTRUCTIONS

Nevertheless, we hope that the advice will help you cope with the problem and that such a misfortune as a broken hair dryer will not ruin your mood.

This electrical appliance is very popular and often indispensable in everyday life. When a hair dryer breaks down, you can contact a service center, or you can try to fix the hair dryer yourself. The accumulated repair experience shows that breakdowns are most often repaired without significant financial costs. To repair a hair dryer with your own hands, you need to know how it works and disassemble it correctly.

How the device works

Any hair dryer has a motor with an impeller and a heater. The impeller sucks air from one side of the hair dryer, after which it blows on the heater and comes out hot on the other side. The hair dryer also has an operating mode switch and elements to protect the heater from overheating.

For household hair dryers, the fan is assembled on a commutator motor direct current, designed for a voltage of 12, 18, 24 or 36 volts (sometimes there are electric motors operating at an alternating voltage of 220 volts). A separate spiral is used to power the electric motor. DC voltage is obtained from a diode bridge mounted on the terminals of the electric motor.

The hair dryer heater is a frame assembled from non-flammable and non-conducting plates, on which a nichrome spiral is wound. The spiral consists of several sections, depending on how many operating modes the hair dryer has.

This is what it looks like:

The hot heater must be constantly cooled by a passing air flow. If the coil overheats, it may burn out or a fire may occur. Therefore, the hair dryer is designed to automatically turn off when it overheats. A thermostat is used for this. This is a pair of normally closed contacts placed on a bimetallic strip. The thermostat is located on the heater closer to the outlet of the hair dryer and is constantly blown with hot air. If the air temperature exceeds the permissible temperature, the bimetallic strip opens the contacts and heating stops. After a few minutes, the thermostat cools down and closes the circuit again.

Sometimes a thermal fuse is also used as additional protection. It is disposable and burns out when a certain temperature is exceeded, after which it needs to be changed.

To better understand how a hair dryer works, you can watch these two videos (watch the first video from the 6th minute):

Video: how a hair dryer works

Video: what's inside the hair dryer

Schematic diagram

The circuit of most household hair dryers is close to the above. Let's look at it in more detail. The heater consists of three spirals: H1, H2 and H3. Through spiral H1, power is supplied to the engine; spirals H2, H3 serve only for heating. In this case, the hair dryer has three operating modes. In the upper position of SW1, the circuit is de-energized. Pregnant<<1>> the hair dryer operates at minimum power: power is supplied through the VD5 diode, which cuts off one half-wave of alternating voltage, only one heating coil H2 is turned on (not at full power), the motor rotates at low speeds. Pregnant<<2>> the hair dryer operates at medium power: diode VD5 is short-circuited, both half-waves of alternating voltage are supplied to the circuit, coil H2 operates at full power, the motor rotates at rated speed. Pregnant<<3>> the hair dryer operates at the maximum possible power, since the H3 coil is connected. When the button is pressed<> heating coils H2, H3 are switched off, but the motor continues to run. Diodes VD1-VD4 are a full-wave rectifier. Inductors L1, L2 and capacitors C2, C3 reduce the level of interference that inevitably arises during operation of a commutator motor. F1, F2 are thermal fuse and thermostat.

How to disassemble a hair dryer

Attention! Before disassembling, unplug the hair dryer from the socket!

The parts of the hair dryer body are attached to each other using screws and special latches. Screw heads often have non-standard shape: asterisk, plus sign, pitchfork. Therefore, you may need the appropriate screwdriver bits. The latches, in turn, are sometimes very difficult to detach and even experienced craftsmen sometimes simply break them off. Sometimes the recesses for the mounting screws are covered with stickers, plastic covers, or plastic plugs. The plugs are removed using a sharp object - for example, a knife or needle. In this case, there is a high probability of slightly denting the body and plugs. True, this will not make the hairdryer work any worse. Sometimes the body halves are glued together. In this case, you have to cut them with a knife or scalpel, and glue them together after repair (for example, with epoxy glue).

You can watch an example of disassembling a hair dryer in this video:

Video: how to disassemble and repair a Scarlet hair dryer

Typical faults: DIY repairs

Let's look at the most common hair dryer malfunctions:

Cold air blows

Possible malfunctions: burnt out spiral

What to do:

As a rule, a break is visible to the naked eye, even without a multimeter. There are several ways to repair a spiral:

1. You can place the broken ends of the spiral in a thin brass or copper tube and crimp it with pliers.
2. The spiral is supported on a frame made of heat-resistant, non-conducting plates. In such a plate, you should carefully make a round hole with a diameter of about 2-3 millimeters with a sharp tool, insert a short bolt with a washer there, tuck the torn ends of the spiral under the washer and tighten.
3. Throw one broken end over the other.
4. The broken ends can simply be twisted together. It should be noted that the third and fourth methods are less reliable than the first two. The fact is that when the broken ends are connected by casting and twisting, the repaired section of the spiral has increased resistance and therefore overheats and soon burns out in the same place.
5. Disassemble the donor hairdryer (of course, if you have one) and take it from there.
6. (not for everyone): you can wind the spiral yourself. Where can I get nichrome? For example, order from China.
7. You can buy a ready-made spiral. To find the one you need, enter in the search bar of your browser<<спираль электрическая для бытовых электроприборов купить>>. Spirals come in different capacities and are sold in bags of several pieces.

You can see examples of spiral repair in these videos:

Video: repair of Viconte VC-372 hair dryer (burnt out coil)

Video: where you can buy nichrome

Does not turn on, i.e. does not heat up and the fan does not spin

Possible malfunctions: no voltage is supplied, that is, a problem with the power cable

How to repair:

First, carefully inspect the cable from the power plug to the housing: there is no obvious damage. If there is, remove the damaged section and solder the ends of the cable. Perhaps these are all malfunctions and the hair dryer will work. An example of cable repair is in the video above: How to disassemble and repair a Scarlet hair dryer.

The impeller does not spin or spins at low speeds

Possible malfunctions: the motor is faulty or hair is wrapped around its shaft.

If hair is wound around the motor axle, you will have to remove the impeller to remove it. You will also need to remove the impeller if you intend to lubricate the motor shaft or replace it. You can see how to do this in these two videos:

Video: removing the impeller from the hair dryer

Video: how to remove the fan from the hair dryer motor

Also, in some cases, you can grab the base of the impeller with your fingers and, pulling, remove it.

Regarding checking the electric motor, the author believes that the best way- from a safety point of view - is to dismantle the motor and connect it to a suitable power supply with short circuit protection. If the motor does not rotate, you need to check the integrity of the windings with a multimeter. If the winding breaks, you will have to buy a new motor (although you can rewind the old one, but this probably only makes sense as entertainment). If the engine sparks excessively, you will also have to buy a new one. Rubbing with alcohol in this case, if it helps, will not last long. One of the options where you can purchase a new engine: order it in China (look for<>).

Hair dryers with air ionization function and infrared devices

Ionization hair dryers- when this mode is turned on, they release a lot of negative ions, neutralizing positive charge on the hair, making it smooth and not dry out. To create negative ions, a special module is used, located in the hair dryer handle. The wire coming out of this module is located in the heater area. The air is ionized when it comes into contact with this conductor.

Diagnose the serviceability of the ionization module without special devices It is possible by indirect signs. If you no longer feel the difference when the ionization module is turned on and off - and you are convinced that the module is receiving normal supply voltage - therefore, the module is faulty. Next, you will need to find a module for the required voltage and suitable dimensions. Look, again, in China.

Photo gallery: approximate view of ionization modules

Infrared hair dryers dry hair not with hot air, but infrared radiation. They are quite expensive, belong to the professional category and dry hair much faster than conventional hair dryers. Instead of a nichrome spiral, they use infrared a heating element(how in infrared heaters). Otherwise, their design is similar to that of a conventional hair dryer.

Video: infrared hair dryer h2d

To disassemble and repair a hair dryer, you do not need to be a certified specialist. Enough knowledge of a high school physics course and the presence of straight hands growing from right place. Be brave and everything will work out for you!

We are all familiar with such an auxiliary tool in construction as an electric hair dryer, which we are used to using to remove paint and varnish coatings.

Fundamental operating principle construction hair dryer not much different from an ordinary hair dryer that we use to dry our hair.

Accordingly, the electrical circuit of a construction hair dryer is similar to the electrical circuit of an ordinary hair dryer.

An explanation will be given in the above topic:

• electrical diagram of a hair dryer;
• operating principle of a hair dryer;
• possible causes of the malfunction;
• troubleshooting these problems.

Electrical circuit of a hair dryer

Let's consider electrical diagram\Fig. 1\ construction hair dryer:

One diagonal of the diode bridge is connected to an external 220V AC voltage source.

The other diagonal of the diode bridge is connected to the electric motor.

The electrical circuit consists of the following elements:

• toggle switch that implements the temperature control mode - K1;
• a toggle switch that controls the rotation speed of the electric motor rotor \blowing speed control\ - K2;
• Toggle switch for turning off heating elements - K3;
• electric motor \fan\ - M;
• capacitor - C;
• heating elements - R\TEN\;
• diodes - VD1, VD2.

Through a diode bridge circuit \one diagonal of the bridge\ the rectified current of two potentials \+,-\ is supplied to the electric motor. When moving from the anode to the cathode, the current flows at a positive half-cycle of the sinusoidal voltage.

Two capacitors connected in parallel in the electrical circuit serve as additional smoothing filters.

The blowing speed occurs due to the variability of resistance in the electrical circuit, that is, when the speed toggle switch is switched to highest value resistance, - the rotation speed of the electric motor rotor decreases due to a voltage drop.

The number of heating elements \heaters\ in this scheme is four. The temperature regime of the hair dryer is controlled by a temperature control toggle switch.

Heating elements in an electrical circuit have different resistances; accordingly, the heating temperature when switching from one section of the electrical circuit to another - heating of the heating elements will correspond to its resistance value.

The general appearance of a construction hair dryer with its names of individual parts is shown in Fig. 2

The following electrical diagram of a construction hair dryer \Fig. 3\ is comparable to the electrical diagram of Fig. 1

There is no diode bridge in this electrical circuit. Airflow speed control and control temperature conditions, - occurs when switching from one section of the electrical circuit to another, namely:

• when switching to a section of an electrical circuit - consisting of a diode;
• when switching to a section of an electrical circuit that does not have a diode.

When current flows in the anode-cathode junction of the diode VD1, which has its own resistance, the heating element2 will heat up according to two resistance values:

• resistance at the transition anode - cathode of diode VD1;
• resistance of the heating element \TEN2\.

When current flows in the junction, the anode - cathode of the diode VD2, the voltage supplied to the electric motor and heating element1, will take the lowest value.

Accordingly, the rotation speed of the electric motor rotor and the heating temperature of the heating element for a given section of the electrical circuit will correspond to the direct transition of the current of the diode VD2. The heating of the heating element \TEN1\ for a given section also depends on its internal resistance, that is, the resistance of the heating element is taken into account.

Malfunctions of a hair dryer

The main reasons for the malfunction of a hair dryer can be called a malfunction of electronic elements:

1. diodes;
2. capacitors.

Most often, this malfunction occurs during a sharp jump external source alternating voltage. For example, the cause of a malfunction of a capacitor is caused by the fact that the plates of the capacitor are short-circuited with each other during a voltage surge.

Of course, the possibility of a malfunction such as a break in the stator winding of the electric motor (winding burnout) cannot be ruled out.

Minor malfunctions include the following reasons:

• oxidation of temperature control toggle switch contacts;
• oxidation of the contacts of the toggle switch for controlling the blowing speed;
• oxidation of the contacts of the toggle switch to turn off the heating elements;
• wire break in the network cable;
• Plug malfunction \no contact\.

Diagnostics to identify the cause of the malfunction is carried out using a “Multimeter” device.

When replacing a capacitor, its capacitance and rated voltage are taken into account.

When replacing a diode, the resistance of two values ​​is taken into account, in the directions:

• from anode to cathode;
• from cathode to anode.

As we know, the resistance value from anode to cathode will be significantly less than from cathode to anode.

With an electric motor, if it malfunctions, things are more complicated. In case of such a malfunction, it is easier to replace the electric motor than to rewind the stator windings. But such work can also be done - whoever is directly involved in such repairs. In this case, the following is taken into account:

1. number of turns in the stator winding;
2. cross-section of copper wire.

A malfunction such as heating element burnout cannot be ruled out. The heating element is replaced taking into account its resistance value.

Diagnostics and repair of a construction hair dryer

Let's look at the design of electric motors and how exactly diagnostics should be carried out. electric machines, as they are commonly considered in the electrical engineering section.

For clear example, photographs of several types of such electrical machines are presented - related to commutator electric motors. The design and principle of operation allow for two commutator electric motors:

• vacuum cleaner;
• construction hair dryer,

- is no different. The difference in electric motors is only in the speed of rotation of the rotor and the power of the electric motor. Therefore, we will not focus our attention in the sense that explanations are given that are not related to the electric motor of a construction hair dryer.

Electric motor of a construction hair dryer

The electric motor of a construction hair dryer is asynchronous, commutator, single-phase alternating current.

single-phase AC asynchronous commutator motor

The electrical circuit of the commutator motor \Fig. 5\ looks like this:

In the diagram we can notice that a commutator motor can operate on both alternating and direct current - these are the laws of physics.

The two stator windings of the electric motor are connected in series. Two graphite brushes in contact - in electrical connection with the electric motor rotor commutator.

The electrical circuit is closed on the rotor windings; accordingly, the rotor windings in the electrical circuit are connected in parallel through the brush-commutator sliding contact.

diagnostics of electric motor stator windings

The photograph shows one of the methods for diagnosing the stator windings of an electric motor. In this way, the integrity or breakdown of the insulation of the stator windings is checked. That is, one probe of the device is connected to any of the output ends of the stator windings, the other probe of the device is connected to the stator core.

In the event that the insulation of the stator winding is broken and the winding wiring is shorted to the core, the device will indicate a short circuit mode \zero resistance value\. It follows from this that the stator winding is faulty.

The device in the photograph indicates a 1 when diagnosing - this will not mean that this stator winding is suitable for use.

It is also necessary to measure the resistance of the windings themselves. Diagnosis is carried out in the same way in a similar way, — the probes of the device are connected to the removed ends of the wires of the stator windings. If the windings are intact, the device display will indicate the resistance value of one or the other winding. If one or another stator winding breaks, the device will show “one”. If the wires of the stator winding are short-circuited with each other as a result of overheating of the electric motor or for other reasons, the device will indicate the lowest \zero\ resistance value or “short circuit mode”.

How to check the rotor windings for resistance with a device? — To do this, you need to connect two probes of the device to two opposite sides of the commutator, that is, you need to make the same connection that the graphite brushes have in electrical connection with the commutator. The diagnostic results are reduced to the same readings as when diagnosing the stator windings.

commutator plate wear

What exactly is a collector? — The collector is a hollow cylinder consisting of small copper plates of a special alloy, isolated both from each other and from the rotor shaft.

In the event that the damage to the collector plates is insignificant, the collector plates are cleaned with fine-grained sandpaper. Again, this amount of work will be performed directly only by specialists involved in the repair of electric motors.

The electrical circuit \Fig. 7\ consists of a battery and a light bulb; this circuit is comparable to the circuit of a flashlight. One end of the wire with a negative potential is connected to the stator core, the other end of the wire with a positive potential is connected to one of the output ends of the stator windings. If the wires are connected in reverse, that is, “plus” to the stator core, “minus” to the output end of the stator winding, nothing changes.

If there is an insulation breakdown, when the stator winding is short-circuited with the core, the light bulb in this electrical circuit will light up. Accordingly, if the light does not light up, it means that the stator winding is not closed to the stator core.

This diagnostic method \Fig. 7\ is not complete. Accurate diagnostics are carried out only with an Ohmmeter or a Multimeter with a set resistance measurement range, for subsequent measurement of the resistance of the stator windings.

The other day, my irresistible, unique and intimate Wife began to complain that her beloved Remington hair dryer not working. This manifested itself as interruptions in normal operation depending on the position of the power cable. That is, if you pull the cable, the hair dryer turns off, if you press it against the hair dryer, warm air comes out. I immediately realized what was happening and began to tear my shirt and wave my favorite soldering iron - they say, let me disassemble and repair the hair dryer right here and right now.

In general, after some moaning, my screwdrivers clashed with her hairdryer in an epic battle until the first... soldering. I’ll say right away - these instructions can be used for most hair dryers from Rowenta, Braun, Philips, Bosch and Scarlett. Of course, all hair dryers are used differently, but their design principle is the same. Go.

Remington hair dryer disassembly

First you need remove the caps on the handle or throughout the body of your favorite hair dryer. In my case, these are three plugs on the hair dryer handle. Lately It has become fashionable to make the hair dryer body with snaps or even fuse the two halves together.

The latches can be defeated, but if the halves are soldered, then just cutting along the seam and then gluing it together is generally futile. So, when you are with your beloved, pay attention to its design.

Easy to remove plugs a needle or a sharp thin knife. Be prepared for the plastic to bend around you and immediately warn your Wife about this. The problem with burrs on plastic can be solved at the end of the repair using the same knife.

Under the plugs I found screws under as in the photo. In general, such screws were invented against vandals for outdoor equipment and to protect equipment from inquisitive children. They are called Security.

Such screws, only bigger and with round holes They are in the elevator in my building. It’s good that I had the right two-pronged bit just for these screws. That's it, elevator, just try again to get stuck between floors.

If you don't have such a screwdriver, you can make from an old slotted screwdriver, simply making a cut in it with a hacksaw.

After disassembling the hair dryer handle, we see the picture as in the photo - hot air supply switch (blue), hair dryer power mode switch (red), twisting of 220 V wires.

Everything is carefully here inspect for breaks any wire or scorch marks, melting on the switches.

If everything is in order here, then unscrew the two screws of the wire holder at the very bottom of the hair dryer handle. Need to find the break in the wire- usually it is located near the exit of the wire from the hair dryer handle.

Such a weak point is immediately visible if you bend the wire in half.

Remington hair dryer repair

For check strip the power cable braid at the bend and we see burnt copper wires.

Boldly cut off the wire and prepare it for installation.

One piece Then I prepared one end of the cable for twisting ( blue wire), and the second – (brown wire). In general, the color of the wire in the power cable is not important, since they can be swapped. We mount each wire in its place and place all the insides in the corresponding grooves. We install the handle body back and fasten it with screws.

I picked up similar screws for Phillips screwdriver, so next time there will be no problems with disassembly. We put the screw plugs in place. If there are burrs on the plastic after disassembling the hair dryer, then you can cut them off with a sharp edge or smooth them out by pressing on them.

This completes the disassembly and repair of the Spouse. I send her greetings and declarations of love. For me, you are the best in the whole wide world!

Master Soldering is with you in thought - successful repairs!

Today, all women, and often men too, use a hair dryer to quickly dry their hair. There are many varieties of these products, but the principle of operation and design are the same, only sometimes there are small technical nuances. If you are thinking, for example, about how to disassemble the Rowenta Studio Dry 2000 hair dryer, then you should immediately warn that its design is no different from other analogues, with the exception of the Rowenta CF 9320 or 9000 models, which are considered hair dryers-brushes.

Any model of the Roventa hair dryer has basic elements, without which it cannot function. These units and parts together perform the main job of drying hair of any length with excellent effect, and some, with badgeION- ionizes the air for better styling.

Each product has switches, the appearance and number of which are different, but the principle of operation is identical.

According to experts, the most complex part of the device is the thyristor, so repairing a hair dryer with your own hands is not difficult for users.

The picture below shows the main components of any hair dryer:

• fan;
• Electrical engine;
• air intake protective grille;
• the basis of the hair dryer is the heating element;
• heat-resistant base;
• start button;
• thermostat switch;
• power supply cord;
• handle end clamp;
• contact block.

Dismantling and troubleshooting algorithm

Repairing a hair dryer of any complexity begins with a visual inspection of the product - there is not much difference here whether it is done by a specialist or by a user who dares to do everything with his own hands. We will tell you step by step how to diagnose a product.

First, you should carefully inspect the outlet for burning of contacts or their looseness. If malfunctions are detected, clean or tighten the contacts; the plug should fit into them with some effort and not dangle.

Power wire

It must be inspected from the point of entry into the handle of the product: here is the contact block, and then the inspection continues all the way to the plug - you need to look for damage to the insulation, internal burns and fractures.

Frame

As a rule, disassembling a hair dryer begins with dismantling the body, which consists of two halves connected with screws and special latches in the front part near the nozzle.

These latches can be broken so must be handled with care, and there are hidden screws that secure the stickers, plastic inserts, and removable covers. Rowenta hair dryer models are quite similar in, for example, the Rowenta Pro 2300 model is disassembled similarly to other standard hair dryers, but hair dryers-combs understand things a little differently - they have their own design features. This must be taken into account when you are planning to repair the product yourself - you must carefully read the instructions and watch a video on disassembling your particular model.

They put it in front of him protective grille and filter which prevents hair and dust from getting inside. Quite often it gets clogged and needs to be cleaned out with a small brush. IN budget options There is only a grille, so the fan can reduce its speed due to the presence of hair and dust on the shaft. The blades of the device are cleaned with an old toothbrush, and the propeller must be carefully removed from the shaft and any wound hair removed.

Electric motor

If it does not work correctly, then the entire device malfunctions, which happens when the winding breaks down or the diode bridge burns out.

In some cases, the brushes are to blame - they have reached their limit.

The engine axis must rotate without beating and in a free mode; after any repair, all rubbing parts must be lubricated, and problem areas must be adjusted manually.

Spiral Many models have several spirals, with the help of which different heating modes are operated. air flow . Their integrity is restored by soldering, and all defects are easy to detect visually. Sometimes spirals should be replaced with similar products from nichrome thread

with identical parameters.

Microcircuits

• Let's look at typical types of malfunctions: the getinax base may crack, and the tin track is torn; repairs are made according to next technology
• - tin the damaged areas and cover them with solder;
• capacitors swell - they are soldered off and new ones are installed;

Faulty resistors immediately turn dark - they need to be changed.

We briefly tried to explain how you can disassemble some hair dryer models from the German company Rowenta, but we want to warn you that repairing these products is difficult for uninitiated users. Inside there are such improvements as smooth action regulators such as the Care button, which means “Care”; The spirals are made of special alloys; if they break, they are difficult to connect reliably at home.

In addition, manufacturers introduce special air flow ionizers and other innovations. Before you start disassembling the hair dryer, you need to find electrical circuit diagram product, if it is not in the attached instructions, consult with familiar specialists. Remember - disassemble any household appliance