In detail: DIY repair of a teapot whistle from a real master for the site my.housecope.com.
From frequent heating, the loop soldered into the whistle body broke.
So that the whistle can still be used, we came up with a replacement for the tin loop made of wire.
To make it, we need pliers and a fragment of strong rigid wire (or a small part from it). In our case, this is a bracket from the old keyboard block.
We straighten the bracket to the corner. We break off the ends that are too long.
We put the blank on the ring. We bend the ends of the wire.
Using the pliers, push the bent ends deeper into the hole in the whistle body.
The whistle fits perfectly in the new loop. Still mobile and vociferous!
Information
Whistle, of course, from a whistle. And it occurs when the steam that occurs when the liquid boils passes through the whistle. Excessive pressure arises in the kettle cavity, which is released through the whistle. And the whistle is the same as what goes through it: clean air or steam. This is how we learn that the kettle is boiling.
Any flow of air at high speed creates a whistle. This is a natural phenomenon and is used in whistling kettles.
The heated water vapor, passing through the thin channels of the whistle, significantly increases its speed. Moreover, the speed of the steam in the whistle becomes so great that this whistle appears.
Any sound is a vibration of the air. The human ear is not able to pick up all vibrations, but it hears the whistle from the kettle perfectly!
You can experiment. Take a thin vine or line with a weight. Spin the line in front of you, and just wave the vine like a saber. In both cases, you will hear a whistle, which is a consequence of the appearance of sound waves.
Video (click to play).
The same goes for the whistle in the kettle. In the picture of the whistle that is provided here, you can see that the whistle has channels that taper in one place. According to Bernoulli's law, in this narrow place, a high speed of steam arises. And since there is speed, there will be sound.
More details about this are written in the physics textbook for the 6th grade. I don't remember everything anymore.
In this article, you will learn about an interesting and somehow forgotten accessory for dummies: a whistle, what it is for, how to use it and how you can make it at home. A whistle is necessary in order to know when the water has boiled. Each person should appreciate the function of the whistle, which allows all people who use electric kettles to know when the water starts to boil. But it so happens that there is no whistle on the new kettle, or it is broken.
There are many ways to make a teapot whistle at home. A little free time, materials and, of course, desire are enough for this. Let's take a look at the most interesting ways.
It will resemble a short cylinder in shape. The upper part can accept different designs. First of all, you should take metal without signs of corrosion. After that, you can proceed to the following actions:
Cut out two circles and a rectangle for the cylinder;
Connect these parts into a whole.
You can also make a great whistle for the kettle with your own hands, using just the usual corks that you use to close the lemonade or water bottles every day. To do this, you need to follow a few simple steps:
Take two plugs and connect them into one piece;
Cut a hole with a diameter of 3 mm.
Be careful when using this method, you need to make a large cylinder of metal, which is located between the plugs.
The version of the children's whistle is suitable for teapots with thin noses. It is located on it, covering the entire surface. And if the kettle has a wide nose, then a metal glass is better for it, in which you will need to drill a hole using a conventional drill.
First of all, you need to pay attention to the metal. A whistle made of quality metal will serve you for a very long time and with great efficiency.
Never use aluminum and plastic material for the whistle! These materials are not resistant to high temperatures.
If you bought a low-quality device, then you can fix it by following these steps:
You need to take the shell that contains the whistle and use a screwdriver to get it out.
The next step is to remove the spring and prepare the surface for further work. To prepare the surface, you need to clean it.
When you move on to soldering, you will need soldering acid. After the surface is prepared, you can start soldering, and then clean the parts from the dirt adhering to them.
The final step in this process is neutralization. You need to use alkali. In addition to alkali, you can use alcohol, but remember that this procedure must be carried out outdoors. This must be done carefully so as not to harm your health. To neutralize the craft, place it in a glass and pour alcohol into it, about 10 or 25%.
By following these rules, you can easily fix your whistle or make a new one!
It used to whistle, now it doesn't make any sounds at all, how to repair it.
A whistle that is put on (put on) on the spout of a teapot works on the same principle as a regular whistle.
The only difference is that instead of air, steam passes through the whistle, steam is water, only in a gaseous state.
In 95% of cases, it’s not a whistle, because its design is simple, a body of a certain configuration and holes in it, if the hole diameter is larger than the required one, then the whistle will not make sounds, this is a factory defect.
Perhaps you are pouring little water into the kettle, the steam pressure is weak, and there is little steam as a result, the whistle does not work.
There is no high-quality connection between the whistle body and the teapot spout body; all the steam escapes from under the whistle, and not into (through) the whistle.
Perhaps the lid of the kettle is not tightly closed, the steam escapes from under the lid and the whistle does not whistle.
That is, start with this, check all these nodes, add water to the kettle.
If it doesn't help, remove the whistle from the kettle.
Next, examine it carefully.
It consists of a whistle body and a plate, although the designs of such whistles may differ slightly.
The same spot welding may not be of high quality and the plate simply fell off, of course the whistle will not work, because its integrity is violated and it does not adhere to the spout.
Sand the weld area with sandpaper and solder the plate in place.
Next, we install the whistle on the kettle and check it for performance.
Surely, everyone will appreciate the functionality of the whistle for the kettle, which lets us know when the water is ready for making hot drinks and does not allow the vessel to boil in vain. However, it happens that these useful little things are lost, broken or simply missing when buying a kettle. In this case, you need to know how to make a whistle for a kettle with your own hands. Craftsmen come up with various ways to make useful accessories for home teapots from scrap materials with a minimum set of tools, so let's look at the most interesting options together.
In shape, this device often resembles a short cylinder. Although, its upper part can have absolutely any design. The main thing here is that the adaptation system and its functionality are not lost.However, if you want to make a whistle for the kettle with your own hands, it is still better to stop at the cylinder.
Craftsmen who have worked at least once on metal will not find it difficult to make a device out of copper or zinc plates. Having a metal that is not corroded, you can make such a simple device:
To do this, cut out several parts to fit the size of the spout - two circles and a rectangle for the cylinder.
After that, solder them together, getting a great accessory in the shape of a hat.
back to content ↑
You can make a whistle for a kettle with your own hands, original, but at the same time, quite functional, you can use ordinary corks, which are mainly used to close bottles with lemonade and beer:
Using a soldering tool, two such plugs are connected together.
After that, holes of 3 mm are cut into them.
Important! To make a more voluminous whistle for a kettle, a cylinder welded from a durable and lightweight metal, which is placed between the plugs, can help.
For ordinary teapots with thin noses, a children's whistle is quite suitable, which, as a rule, is capable of completely adhering to the surface. If, on the contrary, the teapot has a wide filling part, then a metal cup can become a wonderful base, in which a hole can be very easily made with the help of a thin nozzle of an electric drill.
Important! To make a whistle for a kettle with your own hands, which will serve well and safely for a long time, you need to be smart about the choice of metal for it.
The whistling thing cannot be made of aluminum or plastic. Preference should be given to materials that are resistant to corrosion, such as copper, zinc or zinc.
The need to make a whistling device for a kettle is very often caused by a breakdown of an old device. In this case, one of the best options is to simply repair the failed part.
Important! Often the breakdown consists in falling off the whistle of the plate inside, which is not always welded to the conscience.
If you have just such a situation, then you can fix the accessory using the following steps:
Pull the whistle out of the shell - for this you need a regular screwdriver to help pry off the edge of the part.
Holding the whistle in hand, remove the spring underneath, prepare the surface. To do this, sand the four mating surfaces.
In the process of soldering, you will need soldering acid, which will be needed for neutralization in the future.
After careful preparation, you can proceed directly to soldering, and then you must carefully clean the parts.
At the end of the last step, neutralize with alkali.
Important! For this purpose, you can also use ordinary ammonia, however, remember that this procedure must be carried out in the open air.
To neutralize the corrected whistle, place it in a shallow glass beaker and fill with 10 or 25% ammonia.
back to content ↑
VIDEO
VIDEO
VIDEO
VIDEO
VIDEO
VIDEO
VIDEO
As you can see, making a whistle for a kettle with your own hands is not so difficult. If crafted correctly and out of good material, it will likely outlive the kettle itself. The presence of metal, a soldering iron and minimal experience can completely solve the problem with a broken whistle or its absence.
For those who are thinking of buying a Philips HD4667 / 20 kettle, it will be useful to know that you may face one problem in the future ─
insert on the lid. The teapot itself is good, one might even say "unkillable", but after prolonged use, the transparent insert of the lid collapses. Therefore, it is better to take care of the availability of a spare one in advance.
If the breakdown has already occurred, do not despair. You can buy the insert for the lid of the philips hd4667 kettle either in the online store or in the service. The price of the issue is 700 ─ 1000 rubles.
If there is neither time nor desire to wait, then you can repair the teapot lid with your own hands in 1 ─ 2 hours.
For repairs, you will need a small piece of monolithic polycarbonate 3-4 mm thick, a round file, sandpaper and metal scissors.
First, you need to disassemble the teapot lid by unscrewing 5 screws with a curly screwdriver.
The upper part is removed with a gasket and a transparent insert. The lower part remains in place.
You can cut monolithic polycarbonate with both an electric jigsaw and metal scissors. Moreover, the latter option is less noisy and dusty.
Depressions are made with a regular round file.
After that, the edges are trimmed with sandpaper.
Trying on the future glass in place. It should fit tightly enough.
After that, gently heat the insert on gas.
Here I was in a hurry, and, as a result, I made a mistake (slightly overheated the edges where the bubbles appeared). In order not to repeat such a mistake, it is better to keep the part higher. It will take a little more time, but "boiling" will not occur.
After warming up, quickly put the insert in place and, pressing with a glove along the contour, make a bulge.
It remains to assemble the "sandwich" in the reverse order and the lid for the teapot is ready.
If, nevertheless, you need an original plastic insert for a teapot, then for a while, you can get out of the situation as follows.
We disassemble the cover. Take the baking sleeve. Fortunately, it is intended for food and high temperatures.
We put between the two parts of the lid and assemble in the reverse order. We make holes with self-tapping screws during assembly. We cut off the excess with scissors or a clerical knife. Be careful not to damage the rubber seal.
If the article was useful, do not consider it a work, share on the social network:
Thanks for the idea.
Thank you. Somehow I didn’t think about such an option.
Hello chela, with the coming you! Question to inventors: how to make a whistle for a kettle? )) | Topic author: Svetlana
Andrey It is enough to solder two tin corks from beer bottles together and drill a 3-4 mm hole in the center and fit to the spout of the kettle.
Margarita Easy! The only question is, what kind of spout does the teapot have)
Vyacheslav Screw the usual whistle into Nikolay's cork, and plug the teapot spout with the cork.
Vera If you put a skull on a teapot, something will work out.
Roman And weld the lid? Or poxipol?
Daria the usual children's whistle, put imu in the nose - sniffs - ptom how to roar
Ruslan You can even go into the exhaust pipe. Tasty prank. Drove out of fright falls out of the car.
Peter put the alarm on the kettle)))
Tags: How to make a whistle for a kettle with your own hands
VIDEO 26 nov. 2012 - If the whistle suddenly breaks or is lost, then it is almost impossible to resume it, it remains only to fork out for.
... another whistle kettle. These accessories are not sold separately. You can make an exceptionally useful whistle for a kettle with your own hands.
You're not right. I'm sure. I can prove it. Email me at PM, we will talk.
I advise you to look at the site, which has a lot of information on this issue.
Quite right! Exactly.
I'm sorry, but I think you are wrong. Email me at PM.
The electric kettle has become an indispensable attribute of any kitchen and is the bestseller in comparison with other household appliances. This device is widely used both at home, in the kitchen and in the office. But unfortunately, like any electrical appliance, the kettle breaks down after a while. Since the price of this water heater is not too high, it is easier to buy a new one than to repair it. But if you consider yourself a home craftsman, or an apparatus for boiling water is dear to you as a memory, you can try to repair the electric kettle with your own hands.
An electric kettle works on a fairly simple principle, regardless of whether it is an expensive model or a budget one. At the bottom of the device there is a heating element connected to a thermostat, consisting of bimetallic plate ... A tubular heater, when an electric current is applied to it, heats the liquid to a boil. When steam forms during the boiling process, it passes through a special channel to the thermostat, as a result of which the latter turns off the power supply.
If you look at the operation diagram of the device, you will notice that it works on the principle of an iron, and does not differ in the complexity of its design. But before you repair an electric kettle, there are always difficulties when disassembling the case , since the latches (holding the handle) are located differently for different models of units, in addition, the fastening screws can be with a head for a special screwdriver.
An electric kettle is a simple device that contains few elements that can fail. But still, there are common problems, among which the following can be distinguished:
slow heating of the liquid;
the device shuts down prematurely;
the kettle does not turn off;
the device does not turn on;
burnout of the heating element;
water leaks from the housing.
If you notice that the kettle does not heat up the water quickly, then pay attention to the condition of the heating element. Thick layer of limescale on it, formed due to insufficiently good maintenance of the unit, it has poor thermal conductivity, which is why it takes more time to heat the water. If the scale is not removed, the heating element may burn out.
In addition, the entire contact group of the device suffers from overheating, as a result of which the contacts melt or burn out.
To get rid of limescale, you can use a regular citric acid sold in stores. It is enough to pour 1-2 bags of citric acid (20 grams each) into the tank, bring it to a boil and leave the heated solution in the container for 30 minutes. After that, the container must be thoroughly rinsed with running water to remove scale residues. If necessary, the procedure can be repeated.
This behavior of an electric water heater is explained by the fact that the device may turn off due to scale formed on the heating element. Since the heating element has a fuse against overheating, it works and breaks the electrical network. To eliminate the malfunction, it is necessary to descale the heaters.
During the boiling of water in the vessel of the apparatus, the steam must be collected under the lid and directed through a special channel to the thermostat. If the lid is not closed tightly, then this does not happen, and the electrical appliance will work without shutting down. If everything is in order with the lid, check that the steam hole on the side of the handle is not clogged with limescale. In the case when everything is in order with the hole, it can be assumed that the kettle does not turn off due to breakdown of the thermostat .
The thermostat at the electric kettle is located at the bottom of the case, and in order to get to it for replacement, you will have to disassemble the device completely.
As an example, a conventional budget device was taken, which does not differ in design from more expensive models - an electric kettle Vitek, Tefal, Polaris, Scarlett and others. By the way, in this model, as in the Vitek VT-7009 (TR), the container is made of heat resistant glass ... So, let's analyze the unit according to the following algorithm.
Repairing a kettle should start with disconnecting it from the mains ... Next, remove the device from the stand (base) and unscrew all the screws on its bottom panel.
After that, it is necessary with special care to pry off the plastic cover on the handle using a thin screwdriver. This should be done carefully because in different models of devices the latches can be located in different places, and it is easy to break them.
Removing the trim reveals the mounting screws. They also need to be removed.
After unscrewing all fasteners, using light force, detach the handle with the cover from the body.
Next, detach the housing from the bottom of the unit.
At the bottom of the case, you will see all the main elements of the device: contact group, thermal relay and heating element.
pay attention to bimetallic plate (on the right in the figure). If damage is visible on it or it looks worn out, then this may be the reason that the appliance has stopped turning off. The plate is not repaired, but replaced with a new one.
But how to disassemble a Bosch kettle if, when you unscrew all the screws on the bottom, it cannot be removed? Those who disassembled such a device faced difficulties, which often ended in a breakdown of the device. Since the process is quite complicated to describe, it is better to watch a video on this topic.
There are various reasons why your boil machine will not turn on.
Faulty electrical cord and plug ... To do this, you need to “ring out” the cord with the tester, touching the test leads to the contacts of the plug and the contacts on the base (base). If a break is found, replace the cord with a new one.Poor contact in the stand (base). From prolonged work, the contacts can burn, due to which their conductivity is disturbed. If fumes have formed on the contacts, they can be cleaned using fine sandpaper. But in the case when they are melted, they will need to be completely replaced.Internal switch defective in the device. Since the switch has to experience quite large loads (from 1500 to 2000 W), its contacts can melt over time. This may cause the device to not work. The switch is located at the bottom of the handle, and in case of malfunction it looks as shown in the figure below.In this case, the button must be replaced. But there is a malfunction of the button, in which you can fix the kettle with your own hands without replacing it. If you look at the button from the side, you can see 2 contacts, which in the “on” position close. If on them carbon deposits form , the device will not turn on.
To remove carbon deposits, you can use fine sandpaper, a nail file, or a thin file. To make it more convenient to do the stripping, you will need a small "revision" of the button, namely, removing the sides with a pair of nippers.
Another reason that the device does not want to work can be called malfunction of the mechanical power button ... This breakdown is most often found in the Tefal vitesse model, since plastic slats are built into the handle of the electrical appliance, which transmit the translational movement from the outer button to the inner one located at the bottom of the unit.
After this part breaks, it becomes impossible to turn on the Tefal kettle. To understand in more detail how to repair an item that has broken, you can watch a video that describes one original way to fix a defect.
When repairing electric kettles, both old and newer, the most common breakdown is heating element burnout. The problem with heating elements arises, first of all, due to their overheating due to untimely descaling.
Before you repair a kettle with a disc heater or a heating element in the form of a spiral, it is necessary to disassemble the unit as described above. After that, take a tester and connect the test leads of the device to the output contacts of the heater. If the light on the device lights up, or it emits a sound, then the heating element can be considered serviceable.
How to check the heating element if no measuring device ? It turns out to be very simple. It is necessary to connect zero from the mains to one contact of the heater, and a phase to the other. Next, insert a 220 light bulb into the socket, from which 2 insulated wires are taken out. Touch one stripped end of the wire to one contact of the heater and the other to the opposite.If the light is on, then the heating element is working properly.
If it turns out that the disc heater has burned out, then it cannot be replaced, since it is one piece with the bottom of the electrical appliance, such as in the Scarlett kettle, or Vitek VT-7009 (TR). Therefore, you will have to buy a new unit. Only open-type heating elements can be replaced.
If you notice that water is flowing (leaking) from the reservoir of the device, then it is recommended to use such a device for a while, until scale forms in the microcracks, which can block the seepage of liquid. If this does not help, then you will have to buy a new "boiler" if the warranty period has expired.
Another reason that the reservoir is leaking may be loose connection of the electric heater with the device body (if the heating element is open). In this case, you can tighten the fasteners holding it. If this does not help, then you will have to remove the heating element and change the rubber gasket, which is worn out.
Thus, we can summarize: in some cases it is quite possible to repair the unit for boiling water on our own. But if you do not have enough certain skills in the repair of household appliances, then the best option would be to buy a new kettle. Repair in a service center, from a financial point of view, does not justify itself, and there is no guarantee that the breakdown will not happen again.
VIDEO Oddly enough, for all the years of brewing tea, no one could explain exactly why the kettle whistles.
Researchers have finally figured out why the kettle is whistling. This problem has puzzled scientists for over a century! It's a pity that you won't find whistling kettles in modern kitchens during the day with fire. The discovery, however, is not so useless and promises to overcome other unpleasant noises.
The conclusions of two researchers from Cambridge University will help engineers stop unwanted, annoying whistles of a similar nature, which occurs, for example, in domestic plumbing or when a car exhaust pipe is damaged.
“The effect we have discovered can be applied to a myriad of situations — wherever the structure that restrains the flow of air is like the whistle of a kettle,” said Ross Henrywood of the Faculty of Engineering. - Pipes inside a building are a classic example of this effect. It is also observed inside the damaged exhaust system of a car. If you know where the whistle is coming from, you can get rid of it. "
Henrywood, who conducted research on his own thesis project, and his supervisor, Dr. Anurag Agarwal, were able to show exactly how the sound inside the kettle appears when the steam reaches the spout.
Perhaps most people have never considered this a serious reason for scientific controversy, only this problem goes far beyond the scope of ordinary teapots. Using the knowledge gained from the research, scientists can isolate and suppress the annoying noises that accompany our daily life everywhere.
Typically, a teapot whistle consists of two plates close together to form a cavity. Both plates have a hole in the middle that allows steam to escape. It is clear that the whistle of a kettle is a vibration generated by an increasing volume of steam coming out of the spout. But scientists for many decades have not been able to understand what exactly makes the sound.
Henrywood and Agarwal created some simplified whistles and then ran a series of experiments in which air passed through them at different speeds (the resulting sound effects were recorded). This allowed scientists to construct graphs of the dependence of the frequencies and amplitudes of sound on the parameters of the nose. Finally, they used two microphones to determine the frequency of sound vibrations inside the nozzle.
The results showed that if the flow rate is high, sound appears due to two small vortices (sections of a swirling steam flow), which produce noise at certain frequencies. When steam rises to the spout of the kettle, it hits the first hole, which is much narrower than the spout itself. The steam flow is compressed and a steam jet is created through the hole.
Of course, the jet of steam is unstable (like, say, the jet of water from a garden hose). By the time it reaches the end of the whistle, it is no longer a uniform flow. This instability causes a small pressure pulse when it enters the second hole. This impulse causes the formation of water vapor vortices at the outlet. These vortices produce sound waves, creating a noise signaling that the water for the future tea has boiled.
Henrywood and Agarwal also explained why this effect leads to whistling rather than some other kind of noise. In their opinion, this mechanism is similar to that observed in the pipes of an organ or flute. A certain frequency dominates among the sound waves, which is determined by the size and shape of the hole, as well as the length of the nose. The longer the nose, the lower the tonality will be.
The researchers also found that the kettle will whistle even if the flow rate is lower than that required for vortices to occur. They also discovered another sound-producing mechanism that works when water boils. The difference is that the tonality of the sound at this stage has the same frequency, despite the wide range of speeds. It turned out that at a speed below the critical one, the source of sound are vibrations of air trapped between two plates. This is similar to the action of a Helmholtz resonator - the same mechanism produces sound when blown into an empty bottle.
When air enters the open neck of the bottle, the air inside the neck bounces up and down like a spring. A similar mechanism is observed when some kettles are boiling.
According to scientists, the study helped them evaluate various mechanisms in action. The discovery, worthy of next year's Shnobel Prize, will allow design changes and noise prevention. Henrywood and Agarwal are currently developing a silent high speed hand dryer project based on their research.
Details of the study are in a scientific article in The Physics Of Fluids.
Hello chela, with the coming you! Question to inventors: how to make a whistle for a kettle? )) | Topic author: Svetlana
Andrey It is enough to solder two tin corks from beer bottles together and drill a 3-4 mm hole in the center and fit to the spout of the kettle.
Margarita Easy! The only question is, what kind of spout does the teapot have)
Vyacheslav Screw the usual whistle into Nikolay's cork, and plug the teapot spout with the cork.
Vera If you put a skull on a teapot, something will work out.
Roman And weld the lid? Or poxipol?
Daria the usual children's whistle, put imu in the nose - sniffs - ptom how to roar
Ruslan You can even go into the exhaust pipe. Tasty prank. Drove out of fright falls out of the car.
Peter put the alarm on the kettle)))
Tags: How to make a whistle for a kettle with your own hands
VIDEO 26 nov. 2012 - If the whistle suddenly breaks or is lost, then it is almost impossible to resume it, it remains only to fork out for.
... another whistle kettle. These accessories are not sold separately. You can make an exceptionally useful whistle for a kettle with your own hands.
You're not right. I'm sure. I can prove it. Email me at PM, we will talk.
I advise you to look at the site, which has a lot of information on this issue.
Quite right! Exactly.
I'm sorry, but I think you are wrong. Email me at PM.
I want to share my experience. I made a mini drill out of a motor from an unsuitable imported drive made in the USA.The principle of the floppy drive is shown on page 4 of the cover. Such. "
In order to make a whistle that will inform you that the water in the kettle has already boiled, you will need a metal box of shoe polish (plastic or aluminum is not suitable for this) and a strip of sheet zinc or tin from a tin can. If you don't have a box, you can use bottle capsules. Make holes about 4 mm in diameter in the middle of both parts of the box. From a strip of tin, make a tube with a diameter equal to the diameter of the spout, solder it. It will serve to connect the box to the spout. Make cuts at the end of the tube and bend them outward. Solder them to the bottom of the box. This connection must be done very carefully so that the steam from the kettle enters the box and does not escape through the cracks.
The magazine "Horizons of technology for children" No. 6-75.
This entry was posted on Thursday, April 12th, 2012 at 13:33 and is filed under Ideas, Crafts, Tips. You can follow any responses to this entry through the RSS 2.0 feed.
The electric kettle has become an indispensable attribute of any kitchen and is the bestseller in comparison with other household appliances. This device is widely used both at home, in the kitchen and in the office. But unfortunately, like any electrical appliance, the kettle breaks down after a while. Since the price of this water heater is not too high, it is easier to buy a new one than to repair it. But if you consider yourself a home craftsman, or an apparatus for boiling water is dear to you as a memory, you can try to repair the electric kettle with your own hands.
An electric kettle works on a fairly simple principle, regardless of whether it is an expensive model or a budget one. At the bottom of the device there is a heating element connected to a thermostat, consisting of bimetallic plate ... A tubular heater, when an electric current is applied to it, heats the liquid to a boil. When steam forms during the boiling process, it passes through a special channel to the thermostat, as a result of which the latter turns off the power supply.
If you look at the operation diagram of the device, you will notice that it works on the principle of an iron, and does not differ in the complexity of its design. But before you repair an electric kettle, there are always difficulties when disassembling the case , since the latches (holding the handle) are located differently for different models of units, in addition, the fastening screws can be with a head for a special screwdriver.
An electric kettle is a simple device that contains few elements that can fail. But still, there are common problems, among which the following can be distinguished:
slow heating of the liquid;
the device shuts down prematurely;
the kettle does not turn off;
the device does not turn on;
burnout of the heating element;
water leaks from the housing.
If you notice that the kettle does not heat up the water quickly, then pay attention to the condition of the heating element. Thick layer of limescale on it, formed due to insufficiently good maintenance of the unit, it has poor thermal conductivity, which is why it takes more time to heat the water. If the scale is not removed, the heating element may burn out.
In addition, the entire contact group of the device suffers from overheating, as a result of which the contacts melt or burn out.
To get rid of limescale, you can use a regular citric acid sold in stores. It is enough to pour 1-2 bags of citric acid (20 grams each) into the tank, bring it to a boil and leave the heated solution in the container for 30 minutes. After that, the container must be thoroughly rinsed with running water to remove scale residues. If necessary, the procedure can be repeated.
This behavior of an electric water heater is explained by the fact that the device may turn off due to scale formed on the heating element. Since the heating element has a fuse against overheating, it works and breaks the electrical network. To eliminate the malfunction, it is necessary to descale the heaters.
During the boiling of water in the vessel of the apparatus, the steam must be collected under the lid and directed through a special channel to the thermostat. If the lid is not closed tightly, then this does not happen, and the electrical appliance will work without shutting down. If everything is in order with the lid, check that the steam hole on the side of the handle is not clogged with limescale. In the case when everything is in order with the hole, it can be assumed that the kettle does not turn off due to breakdown of the thermostat .
The thermostat at the electric kettle is located at the bottom of the case, and in order to get to it for replacement, you will have to disassemble the device completely.
As an example, a conventional budget device was taken, which does not differ in design from more expensive models - an electric kettle Vitek, Tefal, Polaris, Scarlett and others. By the way, in this model, as in the Vitek VT-7009 (TR), the container is made of heat resistant glass ... So, let's analyze the unit according to the following algorithm.
Repairing a kettle should start with disconnecting it from the mains ... Next, remove the device from the stand (base) and unscrew all the screws on its bottom panel.
After that, it is necessary with special care to pry off the plastic cover on the handle using a thin screwdriver. This should be done carefully because in different models of devices the latches can be located in different places, and it is easy to break them.
Removing the trim reveals the mounting screws. They also need to be removed.
After unscrewing all fasteners, using light force, detach the handle with the cover from the body.
Next, detach the housing from the bottom of the unit.
At the bottom of the case, you will see all the main elements of the device: contact group, thermal relay and heating element.
pay attention to bimetallic plate (on the right in the figure). If damage is visible on it or it looks worn out, then this may be the reason that the appliance has stopped turning off. The plate is not repaired, but replaced with a new one.
But how to disassemble a Bosch kettle if, when you unscrew all the screws on the bottom, it cannot be removed? Those who disassembled such a device faced difficulties, which often ended in a breakdown of the device. Since the process is quite complicated to describe, it is better to watch a video on this topic.
There are various reasons why your boil machine will not turn on.
Faulty electrical cord and plug ... To do this, you need to “ring out” the cord with the tester, touching the test leads to the contacts of the plug and the contacts on the base (base). If a break is found, replace the cord with a new one.Poor contact in the stand (base). From prolonged work, the contacts can burn, due to which their conductivity is disturbed. If fumes have formed on the contacts, they can be cleaned using fine sandpaper. But in the case when they are melted, they will need to be completely replaced.Internal switch defective in the device. Since the switch has to experience quite large loads (from 1500 to 2000 W), its contacts can melt over time. This may cause the device to not work.The switch is located at the bottom of the handle, and in case of malfunction it looks as shown in the figure below.In this case, the button must be replaced. But there is a malfunction of the button, in which you can fix the kettle with your own hands without replacing it. If you look at the button from the side, you can see 2 contacts, which in the “on” position close. If on them carbon deposits form , the device will not turn on.
To remove carbon deposits, you can use fine sandpaper, a nail file, or a thin file. To make it more convenient to do the stripping, you will need a small "revision" of the button, namely, removing the sides with a pair of nippers.
Another reason that the device does not want to work can be called malfunction of the mechanical power button ... This breakdown is most often found in the Tefal vitesse model, since plastic slats are built into the handle of the electrical appliance, which transmit the translational movement from the outer button to the inner one located at the bottom of the unit.
After this part breaks, it becomes impossible to turn on the Tefal kettle. To understand in more detail how to repair an item that has broken, you can watch a video that describes one original way to fix a defect.
When repairing electric kettles, both old and newer, the most common breakdown is heating element burnout. The problem with heating elements arises, first of all, due to their overheating due to untimely descaling.
Before you repair a kettle with a disc heater or a heating element in the form of a spiral, it is necessary to disassemble the unit as described above. After that, take a tester and connect the test leads of the device to the output contacts of the heater. If the light on the device lights up, or it emits a sound, then the heating element can be considered serviceable.
How to check the heating element if no measuring device ? It turns out to be very simple. It is necessary to connect zero from the mains to one contact of the heater, and a phase to the other. Next, insert a 220 light bulb into the socket, from which 2 insulated wires are taken out. Touch one stripped end of the wire to one contact of the heater and the other to the opposite. If the light is on, then the heating element is working properly.
If it turns out that the disc heater has burned out, then it cannot be replaced, since it is one piece with the bottom of the electrical appliance, such as in the Scarlett kettle, or Vitek VT-7009 (TR). Therefore, you will have to buy a new unit. Only open-type heating elements can be replaced.
If you notice that water is flowing (leaking) from the reservoir of the device, then it is recommended to use such a device for a while, until scale forms in the microcracks, which can block the seepage of liquid. If this does not help, then you will have to buy a new "boiler" if the warranty period has expired.
Another reason that the reservoir is leaking may be loose connection of the electric heater with the device body (if the heating element is open). In this case, you can tighten the fasteners holding it. If this does not help, then you will have to remove the heating element and change the rubber gasket, which is worn out.
Thus, we can summarize: in some cases it is quite possible to repair the unit for boiling water on our own. But if you do not have enough certain skills in the repair of household appliances, then the best option would be to buy a new kettle. Repair in a service center, from a financial point of view, does not justify itself, and there is no guarantee that the breakdown will not happen again.
Video (click to play).
VIDEO 
