The heated towel rail does not heat or there is no circulation: reasons

All domestic bathrooms are equipped with a heated towel rail. After all, he has such a role! Entering almost any bathroom of our compatriots, you can see things drying on it after a little “washing”, children’s mittens dangling after a winter party and much more. But the main functionality of this device is to heat the room and maintain a dry climate in a humid environment. And its failure means not only the loss of a place for drying, but the appearance of dampness in the bathroom and its attendant troubles: fungus and mold. These factors lead to damage to the finish and make staying in the bathroom uncomfortable. If the dryer is made of steel, as in most cases, then as it cools down, corrosion processes begin. This is already fraught with depressurization of the pipe and flooding of the home. What to do if the heated towel rail stops heating? How to deal with this problem? What factors lead to equipment losing its operational properties? Let's look further.

What you need to know when choosing a heated towel rail

Shapes of heated towel rails: a - m-shaped; b - U-shaped; c - f-shaped; g - “snake”; d - “ladder”.

Manufacturers of sanitary equipment use mainly two materials in the manufacture of heated towel rails - stainless steel and brass coated with a layer of chrome. At first glance they look exactly the same. All of their differences lie in their different ability to withstand operating pressure differences inherent in the supply of heat and hot water to multi-storey buildings.

Steel products are more durable than those made of chrome-plated brass, therefore, in multi-storey buildings, steel is mainly used, since in heat supply and hot water supply systems pressure drops sometimes reach 8-10 atm.

When choosing a steel heated towel rail, you should choose products made from seamless pipe, the thickness of which must be at least 3 mm. The absence of a welded seam on the pipe guarantees that there will be no leaks that are possible during the operation of a product made from a welded pipe.

Domestic manufacturers practically do not produce brass heated towel rails. The plumbing products market offers imported products, which are mainly used in low-rise, private construction when equipping houses with an autonomous heating system.

Of course, imported brass plumbing has a more varied shape and is more attractive in appearance, but it is designed for much less pressure than sometimes occurs in the pipelines of multi-story buildings. Therefore, they are purchased for installation in cottages, country houses and country houses, where an autonomous system with an operating pressure of about 3 atm is installed.

When choosing a heated towel rail, you must take into account an important feature of its design - the product you like must have a valve through which you can bleed air if necessary. Such a valve is manufactured by domestic manufacturers under the name “Mayevsky tap”. With its help, the problem of first starting up a heated towel rail after its installation or after connecting the system to the water supply after a maintenance break is easily solved.

Design of the “Maevsky crane” and its correct installation

Installation of a heated towel rail to the wall (diagram).

Many people who are not very knowledgeable in technology, hearing the name “Maevsky faucet”, imagine that this is a very complex piece of plumbing equipment, and some do not even know what it is needed for. In fact, there is nothing complicated in its design; the simplest “Maevsky tap” includes only two parts - a body and a conical screw.

At its core, this design is a reliable air outlet. The principle of its operation is as follows: when the tap is open, air from the heating system enters its body through the inlet, and at the same time is removed through the outlet located in its side. When closed, the screw fits tightly to the inside of the housing, preventing liquid from escaping from the pipeline.

“Maevsky tap” is available in different sizes with external thread diameters corresponding to the diameters of pipes used for the manufacture of heating systems. Depending on the design, the devices can be opened either by hand or using a screwdriver or a special key.

Before you begin installing a bathroom heating device, you should take care of purchasing:

• “Maevsky tap”, if it is not included in the heating device kit;
• ball valve (3 pieces);
• a screwdriver or a special key for the faucet;
• containers for collecting water.

Since the heated towel rail must be installed by a master, he will have everything else necessary for the job.

Reasons for lack of circulation: neighbors or housing office?

Have you removed all the plugs, but your bathroom heated towel rail still doesn't work? Let's move on to the following methods to solve the problem. It is possible that there is no hot water circulation in the device. The cause of this unpleasant phenomenon can be many factors, including:

1. pipes of the wrong diameter have been installed;
2. the hot water supply circuit was switched to open summer mode;
3. neighbors blocked the common riser.

The connection diagram for the towel dryer provides for its installation on the hot water return flow pipe. Hot water must constantly be in motion, otherwise it will stagnate in the risers and cool. The consequence of this stagnation is cold water, which flows even when the hot water tap is turned on. Only after the cooled water has been drained does warm water begin to flow.

Installation of a heated towel rail

Naturally, the meters at this time show that hot water is being used, for which you have to pay extra money. This is a reason for a complaint to the housing office, whose specialists must rectify the situation as soon as possible. There is another reason for the lack of heat in the heated towel rail. Often, the housing office turns off the return flow in the hot water supply circuit, motivating their actions by switching to summer mode, while saving on heating the water flow. And since heated towel rails are usually connected to the return line, they are instantly cooled, even if hot water comes from the taps. Again, without complaints to the housing and communal services sector, it will be very difficult to solve such a problem.

However, a cold heated towel rail is not always the merit of the housing office. In some cases, the problem is caused by neighbors who are connected to the same riser as you. In some multi-storey buildings, devices for drying towels and other items of clothing are part of the main line. If you try to remove such a device for the purpose of cleaning or removing blockages, the result will be the cessation of activity of the entire circuit. Even knowing about such consequences, many try to fix the problem using these methods, while forgetting about disconnecting the pipes. This will ensure normal water circulation around the apartment. If you do not do this, then the operation of the hot water system is disrupted, and the heated towel rail does not heat. And all the neighbors at the same time.

But you shouldn’t blame your neighbors and housing office representatives for all your troubles. If your apartment has incorrectly selected outlets for the pipes from the main line, this may also disrupt the operation of the heated towel rail. As practice shows, the cross-section of the pipes should be smaller than the main line. This helps to quickly and easily overcome linear resistance and create the necessary pressure. Otherwise, the flow will go along the main line, bypassing the heated towel rail, choosing less resistance.

Finally, we note that a cold heated towel rail can be a consequence of the design of the device itself. For example, the heat exchanger is connected from below, but is vertically elongated. In this case, hot water flows only to the lower part of the device, but simply cannot reach the upper slats due to lack of pressure. Fortunately, such problems arise only with low-quality and cheap units, since modern devices are distinguished by excellent balancing.

Causes, troubleshooting methods

So, your heated towel rail remains cold, there is no necessary heat from it. And why is this happening? Why is the dryer cold? This could be an air lock with excess air in the heated towel rail, or failure of the entire device. Let's try to understand the main reasons, and also find out how this or another malfunction can be eliminated.

https://youtube.com/watch?v=c7scEb7HLQI

There is no hot water in the system. If you use a dead-end system, where water is supplied only when the tap is opened, then it’s hardly worth bothering with your dryer. Here the water option is unlikely to be relevant anymore. Change it to electric. Here is the entire solution to the problem.

Traffic jams and blockages. Many people installed their heated towel rail a long time ago, but they do not know that it should be cleaned periodically. It’s no longer enough to simply bleed air. You will need to first close the tap and then remove the device. It would be correct to put special plugs on the pipes. Arm yourself with a soft wire with a brush at the end, with which you can clean scale, blockages, and plugs from the walls. After cleaning, be sure to flush the system. And not just water, but a solution of hydrochloric acid. Pour it into the system and wait a while. After that, drain. Due to the work of hydrochloric acid, the sediment will become softer and easier to remove. Unfortunately, even after this, the dryer may remain cold. You tried to ventilate the device, the detected plug was removed, but it still does not heat. This happens due to the age of the heated towel rail or not very good quality. Therefore, there is only one solution to the problem - replacement. Incorrect installation. In some situations, dryers were installed recently, but they still do not heat. Due to inexperience, many home craftsmen install it far from the water riser. Due to the resistance that arises, hot water simply cannot enter the dryer pipes. Of course, the way out of this situation is to remove the device and install it in the correct place. Old pipes. Unfortunately, pipes can only survive for a short period of time. As a result, the hot water supply system pipeline becomes clogged and clogged. As a result, we are dealing with low water pressure. Because of this, the dryer does not work well.

To clean the pipe, you must first close the tap and plug the hot water supply system. On the circulation line, the plugs are screwed in, after which the tap is opened. Sludge and water should flow down the drain. If hot water does not flow through it, it means that the supply is clogged, or the problem is in the dryer itself. Clean the system using the same method as above. Then put everything back in place and open the taps. If it doesn't heat up, you'll have to change it. Cork. Often it is the air lock that causes there to be no circulation and the water heated towel rail does not heat the room. The presence of air in the heated towel rail is easily eliminated if the device has a special Mayevsky tap

It is very important to consider its availability when purchasing a dryer. And you can earn money on it in Slovakia through https://ivs-llp.kz/rabota-v-slovakii. Unfortunately, air locks are one of the most common occurrences when problems arise with water types of heated towel rails

Resumption of circulation is carried out by simply bleeding excess air from the system. After this, the device will start working again.

https://youtube.com/watch?v=V2OBwjAUTRQ

As you may have noticed, the reasons why the heated towel rail does not heat can be very diverse. One way or another, most of them can be corrected without even resorting to the services of specialists. The most important thing is to correctly identify the malfunction and act carefully when removing equipment, cleaning it, washing it, and so on. Follow safety rules and put your dryer in order.

We eliminate the causes of ineffective work

Although a heated towel rail is a fairly simple device, finding the reason for ineffective operation can be difficult. To reduce time and not do unnecessary work, the search for the “weak link” is carried out according to a certain algorithm:

• de-air the heating device;
• determine the hot water pressure at the inlet to the heated towel rail. This can be done either with a special device - a pressure gauge, or using one of the calculation methods;
• analyze and eliminate the causes that lead to a drop in pressure in the circuit;
• the heated towel rail is dismantled and cleaned of dirt and deposits.

If the heated towel rail does not heat up at normal pressure in the DHW system and there is good flow through the circuit, it means it is installed incorrectly. In this case, it is necessary to change the connection diagram, and possibly move the device to another location. We'll move on to a look at installation errors and how to fix them a little later. Now let's remember the simplest methods for solving the problem.

How to remove air locks

You can check whether an air lock is the cause of the trouble and remove it from the heated towel rail using a special air vent, which is also called a radiator air valve or Mayevsky tap. To do this, the valve locking screw (needle) is turned out of the seat so much that air begins to hiss out of the radiator.

The process of removing an air lock using a Mayevsky tap does not cause any difficulties - any home craftsman can handle this procedure

You can determine the end of the process by a thin stream of water without bubbles or hissing, which will begin to flow out of the valve hole. After this, Mayevsky’s tap is turned off and checked to see if the coil has begun to heat up.

If the heated towel rail is built into an individual heating system, de-aeration of one device is not enough - a comprehensive removal of air from the entire system will be required, starting from the boiler and ending with the radiator in each room. In systems with forced circulation of coolant, it is better to turn off the pumps - this prevents the movement of air pockets and facilitates their complete removal.

Often our readers are faced with a situation where the heated towel rail was initially installed without an air vent. In this case, we recommend installing this useful and inexpensive device - in the future it can save you a lot of time and effort.

The simplest design makes the Mayevsky crane reliable and easy to use

As a temporary measure, it is recommended to bleed the air by depressurizing the circuit. To do this, you need to stock up on some kind of container (a bowl or bucket), and lay a rag on the floor under the PS. Next, you should slightly unscrew the top nut, with which the “towel” is connected to the riser. At the same time, water mixed with air bubbles will begin to ooze from under the connection. After waiting until the hissing stops, the tightness of the system is restored.

Video: how to bleed air from a heated towel rail

How to get rid of blockages

In old “Stalin” and “Khrushchev” buildings, utility lines are so worn out that blockages and breaks due to rusty pipes are as common as air leaks. To remove the blockage, you need to turn off the water and disconnect the heated towel rail from the riser. At the same time, several liters of water remain in the coil, so it is better to place some empty bowl or bucket under it.

To determine in which part of the circuit the blockage is located, a hose with good water pressure is connected to one of the outlets of the heated towel rail, and the second is lowered into an empty container or bathtub. A decrease in water flow pressure indicates that the coil needs cleaning.

Oxalic acid is an excellent agent for removing scale, rust and calcium deposits

To remove internal deposits, both mechanical and chemical methods are used. In the first case, you can use a plumbing cable with a small homemade brush at the end. It is introduced inside and with translational and rotational movements the walls of the device are cleaned of scale and rust.

To clean the inner surface of the heated towel rail and heating and hot water system pipes, you can use a plumbing cable with a metal brush

In case of severe contamination and the presence of persistent deposits, you cannot do without special chemical reagents such as “Mole”, “Mr. Muscle”, “Brawler”, etc. Dissolved chemicals are poured into the device with the pipes installed upward and kept for the time indicated on the packaging.

Along with household chemicals, folk remedies can also be used to clean heated towel rails. For example, a good result is obtained by combining a solution of acetic acid and regular baking soda poured into a heating device.

The most stubborn deposits of rust and scale can be removed by dry cleaning using a hydrodynamic method

In cases where a drop in pressure occurs due to old, clogged pipes, you can try to restore their permeability using a plumbing cable. If this option does not give the expected result, then one of the companies that provides hydraulic pipe cleaning services (using high-pressure units) can be involved in solving the problem.

What to do if circulation in the DHW circuit is disrupted for subjective reasons

When looking for the reasons that lead to a decrease in pressure, the human factor cannot be discounted. Most often, the heated towel rail is connected to the return line of the hot water supply with constant circulation, thanks to which it is possible to maintain the temperature of the hot water within the specified limits. In order to ensure equal thermal conditions for each consumer, all outlets from the riser are equipped with bypasses. It is thanks to these simple sections of the pipeline that it is possible to avoid a significant difference in the temperature of the hot water between the first and last points.

Installing taps and plugs on the bypass is prohibited, as it changes the hydrodynamic characteristics of the hot water system

In order to increase the temperature of the substation in a separate apartment, it is enough to close the bypass using a ball valve - in this case, the entire flow of hot water will go through the heating device. The result of such “innovations” is a drop in temperature and an increase in the hydraulic resistance of the system. You can guess for yourself that several “innovators” living in your building are capable of leaving the bathrooms of all other apartments without heat. That is why carrying out work that can change the hydrodynamic parameters of the hot water supply system is prohibited by law.

Another example of an irresponsible attitude towards communal communications is the removal of a heated towel rail created by bending the riser without restoring the integrity of the latter. In other words, during the renovation, one of the neighbors cut out the unaesthetic structure and installed plugs at the ends of the pipes. In this case, bypassing this apartment, it is necessary to install a jumper from the same pipe that made the riser.

Installation of shut-off valves on the riser is prohibited not only to avoid interference by residents in the operation of the hot water supply system, but also due to the increase in hydraulic resistance of the main line

According to sanitary standards, it is possible to turn off the hot water supply only in case of repairs or maintenance work, so substations must be heated in any season. In reality, with the end of the heating season, the housing office often turns off the return branch in the DHW circuit, transforming the circulation connection circuit into a dead-end one. In this case, the heating device will only work when the “hot” tap is opened.

If you are confident in the correct installation and serviceability of communications, you should talk to your neighbors or file a complaint with the management company. If this does not help, then you have two options to solve the problem. The first is to become the same offender by reconnecting to the DHW supply branch, shutting off the bypass or installing an additional circulation pump. The second is to remain a law-abiding citizen, power the device from the heating system or install an electric (combined) device.

Modern electric heated towel rails are equipped with thermostats that allow you to regulate the temperature of the device over a wide range

Correcting installation errors

All the methods described above for restoring the functionality of a heated towel rail are quite simple even for people who have picked up an adjustable wrench for the first time. Much more difficult is the situation with the heated towel rail, which was installed in violation of the laws of thermodynamics.

One of the most common mistakes is a lateral or bottom connection, in which the heating device (in whole or in part) is installed below the point where the return line inserts into the riser. In this case, gravitational forces are not enough to create the pressure necessary to lift the cooled coolant layers to the level of the return pipeline. Of course, natural circulation will not work in this case.

An error in installing the return line above the bottom point of the heated towel rail makes circulation of the coolant impossible

Often, for the sake of convenience and aesthetics, careless craftsmen connect a heated towel rail, hiding the supply pipeline behind the suspended ceiling, and lay the return line under the floor. The “loop” located in the supply area is an excellent trap for air bubbles - a plug formed in this place will most likely block the path of water flow. As for the lower “loop,” it prevents the cooled coolant from being pushed out for the reasons already discussed above.

Attempts to hide the heated towel rail connections in the floor or behind the ceiling lead to the formation of “loops” that impede or completely stop the circulation of hot water

If the connection diagram includes an offset or narrowed bypass, then with a lower supply of coolant, the forced circulation pressure can be equalized with the efforts of the “gravity pump”. In most cases this does not happen because the pump “wins”. And, nevertheless, stopping the flow of hot water can be caused either by lengthening the connecting lines and reducing their cross-section, or by installing a bypass tap by one of your neighbors.

A circuit with a narrowed or offset bypass is best used with an upper coolant supply

To correct the situation, a complete or partial change in the connection diagram is necessary. You may even need to move the “towel” to a new place. If such measures do not suit you, then you can correct the situation by installing a circulation pump in the circuit. The only thing you need for this is to find out from specialists from the housing office the direction of movement of the coolant in the riser.

Read about all the features of moving a heated towel rail to another location here:

In all other cases, you should take into account the recommendations of experienced plumbers. So, for all cases of lateral connection (including diagonal), the following conditions will need to be met:

• the upper outlet of the heated towel rail should be below the outlet of the riser, and the lower pipe - above the entry point of the return line;
• there should be no “loops” on the highway;
• the cross-section of the pipeline must take into account the hydraulic resistance of the coil;
• if the upper crossbar of the PS is located above the hot water sampling point, then the heating device must be equipped with a Mayevsky tap.
  If all the necessary conditions are met, then no bends in the connecting pipeline can interfere with the normal operation of the design radiator

With a lower connection, the following will help correct the situation:

• moving or changing the bypass cross-section;
• compliance with the required slopes and removal of “loops” from the diagram;
• ensuring the condition that the corresponding riser outlets will be located below the connection points of the “towel”.

When considering the bottom connection diagram, you should definitely analyze the direction of water flow when it is cooled in the coil and determine whether it will circulate with the top or bottom supply.

The erroneous opinion that without installing a narrowed bypass, water will not circulate through the device’s coil leads to unjustified installation of bypass sections with a reduced flow area. But in a circuit with a lower coolant supply and weak circulation, such a narrowing can precisely be the reason why the coil remains cold. The cross-section of the bypass section should not be reduced by more than one step, and in the case of a displaced bypass, this is not recommended at all.

If the heated towel rail does not heat with a lateral or diagonal connection and an offset or narrowed bypass is used, then you should check the direction of movement of hot water in the riser. As noted above, with lower supply such schemes are inoperative due to the fact that the circulation of the coolant is hampered by the operation of the “gravity pump”.

You will receive more information about the methods of installing heated towel rails and installation technology by reading this article:

Causes and troubleshooting of water heated towel rails

Water heated towel rails are very popular today. Many people choose them, refusing to buy electrical devices. The fact is that water dryers are more common in our country. Almost every user is familiar with them. Various problems that arise with such products can be solved on your own. Let's take a closer look at how you can independently repair a water heated towel rail in different cases.

Low heating temperature

Low heating temperature can be due to various reasons. Often the problem lies in the formation of a so-called air lock in the dryer. If such a plug appears in the device, you will need to bleed off excess air until the water flows again

For these purposes, when buying a heated towel rail, you need to pay attention to the presence of a special air drain valve. Otherwise it is called the Mayevsky crane

If you have such a part at hand, then there will be no unnecessary difficulties in solving the problem that has arisen. You just need to open this tap and then wait for the water to appear.

If the heated towel rail heats very poorly compared to the rest of the system, then the reason may be that the conductive line is clogged or a lot of scale has appeared on the walls of the pipe. To fix these problems, you will have to resort to dismantling and cleaning the device.

Leakage

Leaking is a common problem that occurs for various reasons. Often such consequences result from wear of the gasket. In this case, it will need to be replaced with a new one. When making the necessary replacement, you should use special fluoroplastic gaskets, which are more durable and reliable. If you have a rotary dryer, you should not overload it. It’s better to install a couple of auxiliary hooks than to call plumbers.

If the source of the leak is observed in the body of the dryer, then this malfunction will be much more serious. It is unlikely that you will be able to solve this problem yourself, so it is advisable to turn to the services of specialists. The main pipe may also leak. This often occurs due to a lack of power in the water dryer itself during pressing. If the unit leaks because of this, then it makes sense to call specialists.

Complete absence of heating

In some cases, a problem may arise due to the complete lack of heating of the water heated towel rail. Most often, the cause of this problem is a shutdown of hot water in the general system.

System clogging and breakdowns - mechanical defects

Sometimes the cause of device failure is mechanical faults, for example, breakdown of shut-off valves. Ball valves, although made of durable and strong metal, can break and crack over time. In this case, there is only one way out - replacing the faulty equipment. It is very difficult to change ball valves yourself; it is much easier to contact a plumber who will do all the work quickly and efficiently.

A heated towel rail can also become cold due to clogging of the entire system. This phenomenon is typical for houses with low quality water, which contains large quantities of salts and metal impurities. As a result, build-up and contaminants form, which reduces the coolant pressure in the device.

Installation of a heated towel rail
If replacing the components of a heated towel rail is quite problematic, then cleaning the system is much easier. It is necessary to ensure the availability of special chemicals that are poured into the unit itself. After a certain time, the chemical mixture is completely removed. All that remains is to carefully clean the pipe cavities using a metal brush or wire, as well as a stream of water under enormous pressure.

Installation features: how to start a heated towel rail

Before installing a heated towel rail, you first need to select it. For apartments, it is recommended to choose devices from a domestic manufacturer that will comply with certain GOSTs, since imported ones may not be suitable for our installation. But for private homes, foreign brands are also quite suitable.

It is also impossible to allow the pipes of the device to be smaller in diameter than the main system. If this happens, then you need to select and install the necessary adapters. For main connections it is best to use “American” ones. They will allow, if necessary, to easily and without problems remove the entire device. It is also recommended to install ball valves and special jumpers for convenience.

Installation of a heated towel rail:

• First of all, the device needs to be assembled: to do this, it is necessary to install shut-off valves on the supply line, which have detachable connections;
• Attach the assembled device to the wall;
• Bring pipes from the main riser.

Having completed all these steps, you can begin the initial launch of this device (heated towel rail). To start the device we need a pre-installed Mayevsky tap, which is usually located at the top of the device. Having opened the tap, you need to gradually fill the entire device with water so that it does not become airy, that is, air jams should not form. In order for the launch to take place correctly, you need to have enormous professional skills, and not just turn off the water.

Rules for installation and operation of equipment

In order for the equipment to work efficiently and not malfunction, when installing an electric heated towel rail and operating the device, you should follow some simple rules:

1. The unit should not be placed in close proximity to a place where water flows. To avoid problems, you should hang the household appliance as far as possible from the bathtub or shower stall.
2. When connecting the device to the power supply system, you must use a connection that can withstand intense current loads.
3. For correct and safe operation of the heated towel rail, protective shutdown devices should be installed. A differential circuit breaker, a circuit breaker and an RCD will protect equipment from burnout and ensure normal operation even during unauthorized power surges.
4. The presence of a grounding contact is the most important position when installing an electric heated towel rail. In case of insulation breakdown, it will prevent electric shock to the user.

The connection socket should not be built-in, but external and must be waterproof. If possible, it is better to place it outside the bathroom by drilling through it in a suitable place on the wall.

Correcting possible breakdowns with your own hands

Tool required:

• indicator screwdriver;
• Phillips screwdriver:
• pliers;
• adjustable wrench;
• tester;
• funnel.

To fix this:

1. Remove the heated towel rail from the brackets and unscrew the plug with the Mayevsky valve and the gasket, which is located in the upper part.
2. Turn over and drain the liquid into a container prepared for this purpose.
3. Unscrew the connection of the heating element of the heated towel rail with the device (in the lower part), that is, in the place where the leak formed, using a key.
4. Remove the old gasket and replace it with a new one.

Reference! The plumbing store asks for a seal made of fluorine-containing polymer and the appropriate diameter.

If the device does not heat

Check the entire electrical circuit. First, inspect the socket of the heated towel rail: insert a plug from another device into it. If it doesn't work, unscrew the socket.

First, the switch labeled “bathroom” is turned off on the electrical distribution panel. If there is no such inscription, turn off the general packet switch.

Important! The socket must be grounded and have an automatic shut-off system. It is recommended to install a waterproof socket

The problem with a faulty heated towel rail socket is solved in this way:

1. The burnt-out contact of the heated towel rail is restored and reassembled.
2. If this does not help, change the entire outlet to a waterproof one.

The next possible breakdown is a malfunction of the connection to the heated towel rail (cable with plug). Use a tester to check the continuity of the circuit by resistance to direct current. Sometimes it is possible to access the wire at the junction with the thermostat, sometimes this is not possible, because the cable is sealed.

If the tester shows no network, change the entire line or just the plug.

Photo 1. Checking the heating element of a heated towel rail using an electrical resistance tester. If the voltage is insufficient, the entire circuit must be checked.

Then, using a resistance tester, they check the integrity of the thermostat circuit - the heating element. Most likely, the breakdown is in this element.

Most companies provide the ability to replace heating elements, regardless of whether they are intended for wet or dry dryers.

Replacing the heating element

When purchasing a heating element, they also purchase gaskets for connection to the housing. The seller is asked to dispose of the old NE, if such a service is available.

Replacement steps

1. An adapter is inserted into a nut with an internal thread, a gasket is placed inside, a ring is put on the protruding part of the adapter from below, and the pin is screwed into the ring with a screwdriver, securing the adapter immovable.

   This design is put on the heating element. Carefully screw the nut with the heater into the heated towel rail and tighten it with a wrench.

2. Install the entire set of “towels” in their original place. Place a funnel in the top hole and pour it into the coolant (oil, water, antifreeze) in small parts. Check the lower threaded connection for fluid leakage. If necessary, tighten with an adjustable wrench. Install a nut with an adapter, gasket and Mayevsky valve in the upper part.
3. The upper part with the valve is wrapped with a rag to prevent the coolant from leaking onto the floor when the heater is connected.
4. Turn the thermostat to maximum and wait: when heated, excess liquid will come out through the Mayevsky valve. Remove the rag, tighten the valve and screw on the cap that hides it.

When replacing a dry heating element, the procedure is simpler and does not require a detailed description.

Remove the plug and if the phase wire burns out at the junction with the heater, correct the breakdown, wrap it with heat shrink and put it in place. If the thermostat in the device fails, they replace it or try to connect it directly, without this device.

If the problem is a broken heating cable, the fix will require replacing the heating element.

Attention! Before installing a new heating cable with a thermostat in place, check it with a tester

If the heated towel rail connected to electricity does not work

Electric heaters are considered quite reliable, but they can also fail.

Causes of failure

• Burnt out heating element.
• Thermostat malfunction.
• Wiring problems.
• Blockage.

Electric heated towel rail Domoterm Classic DMT

Remove the blockage

Blockages appear only in combined devices - they operate on hot water supply and electricity. To check if there is a plug inside, turn on the device and after a few minutes check its temperature next to the heating element and in another area of ​​the coil. If the heater is warm, but the rest of the pipe is cold, there may be scale in it. Remove the equipment so that the liquid does not leak out and clean it with a plumbing cable.

Instagram @lis_nadya_lis

Instagram @lis_nadya_lis

Check electrical

If the heater remains cold, the problem lies in the electrical part. You can search for a malfunction using the following scheme:

• Inspect the outlet. If there is no visual damage, check it using an indicator screwdriver. Replace the outlet if necessary.
• Some devices have a thermostat. Give it a spin. A faint click indicates serviceability.
• Set the multimeter to record the DC resistance level and check the resistance of the heating element and wires. The indicators of the first should be less than 1 Ohm, the second should approach infinity. If other numbers are displayed, the wiring is changed.

Electric heated towel rail TERMINUS Classic 32/18

Diagnostics of heating elements with a multimeter:

• Disassemble the heating element and carefully disconnect the wires connecting it to the electrical system. The user manual will help with this.
• Set the measurement scale to Ω and indicate the maximum value.
• Ring all the wires and the heating element itself separately.
• If the indicator tends to zero, there is a short circuit in the system.

Replace equipment

Replacing the electric heater is easy. You will need a screwdriver and wrenches. The dry heating element is unscrewed and a new one is installed. If it comes into contact with the coolant liquid, the coil is unscrewed, the liquid is poured into a suitable container, the heater is replaced and the coolant is poured back.

Electric heated towel rail TERMINUS Classic

In the article, we explained why the heated towel rail in the bathroom does not heat, and what to do in each case. To repair equipment connected to the hot water supply, work in the sequence that we have described.

Third party connections

In the bathroom of an apartment building, the PS is the only heating device. It is in the bathroom that heated floors are most often used. Therefore, the water heating circuit is often connected to the hot water supply/heating riser via a tee.

The heated water-type floor is powered from the riser of the heated towel rail.

Initially, such additional heat consumption was not included in the building design. Therefore, a neighbor or owner several apartments down the riser may simply not be able to provide the required temperature of +60°C in the hot water supply line.

Illegal substation connection diagram.

Such actions are strictly prohibited by law. It is enough to contact the housing office with a complaint or notify the heating and hot water supplier (usually the same management company) about this, so that the violator is subject to fines. He will be obliged to return everything to its original form in court, and the deadlines for completion will be monitored.

For clarity, you can use the table:

The management company is obliged to ensure normal operation of the PS, that is, to fix the problem free of charge. However, the owner does not need to call the management company, but go there in person to submit an application. If there is no response to this request, you can complain about the management company to the State Housing Inspectorate.

Thus, the reasons for a cold heated towel rail can be incorrect assembly diagrams, installation errors, incorrect choice of diagrams and components, ignorance of the design of heating systems, DHW in an apartment building. To restore the functionality of the PS, you can contact the management company or troubleshoot the problems yourself

Conclusions and useful video on the topic

The video clearly demonstrates the process of replacing the phase wire of an electric dryer:

Troubleshooting and subsequent repair of the heated towel rail can be done at home. This requires a multimeter, a screwdriver, an adjustable wrench and pliers.

When carrying out work, you must observe basic safety rules and follow the advice contained in the instructions included with the equipment. If you have doubts about your abilities, you should contact the company’s warranty service center or call a qualified specialist to your home. He will quickly detect the problem area and fix any problems that may arise.

You can write a post about how you repaired an electric dryer with your own hands and attach a photo in the block located under the text of the article. Please comment on the information we provide, ask questions, and provide useful information on the topic.

How to start?

Now let’s try to figure out how to eliminate the above-mentioned problems and get the heated towel rail into working condition. Let's start with a situation where an air plug has formed in the system. Removing the air can help here.

The easiest way to do this is in a private house, where the owner knows the structure of the water supply mechanism and where the tap is located, when opened, the air can be released. If the house is multi-story, then there is a high probability that it will be necessary to bleed the entire riser. The algorithm of actions will depend on the type of building, because the structure of the riser varies everywhere:

• In 5-story buildings built in Soviet times, the hot water riser goes to the last floor, after which it goes down again. Air accumulation usually occurs on the top floor at the highest point. And the descent should be made here. Usually in apartments on the top floors there is a special hose on the top tap of the riser. When you turn the valve, water flows out of the hose until the air cushion disappears.
• In 9-story panel-type buildings, all communications usually end in the attic, which is why all problems will be eliminated there. Considering that there is not always access there, you will have to call a plumber from the organization that services the house. If you have access, then you can do everything yourself. The procedure here will be the same as in the case of 5-story buildings.
• In other types of buildings, you should not engage in arbitrariness and you need to call a plumber who will carry out all the necessary actions.

If we talk about removing air directly from the heated towel rail, then there are 2 solutions. If the equipment is old, then the algorithm of actions will be as follows.

You should place a container under the equipment where the water will drain. This will prevent the room from flooding. Using an adjustable wrench, you need to unscrew the nut that connects the dryer to the hot water pipe

You need to be extremely careful not to strip the threads. This is especially important if the equipment is really old. You must wait until the hissing stops and water begins to pour into the container. Carefully tighten the nut.

If the heated towel rail model is relatively new, then everything will be much simpler, because it is equipped with a special air bleeder, which is called a Mayevsky tap. In essence, it is a shutter in the shape of a narrow, cone-shaped cylinder. Its components are a locking screw, as well as inlet and outlet openings, which are small in size.

To bleed air using such a device, you will need:

place a container where the water will drain under the above-mentioned tap; using a screwdriver or wrench, carefully turn the special screw (it is important not to overdo it here, so that later there will be no problems with installing this element back); wait until the hissing sound disappears from the hole and water flows out without air particles in the form of bubbles; carefully close the tap.

If it is determined that the cause of the breakdown is that the heated towel rail is clogged, then it will need to be cleaned. To do this, you need to remove it for a while. The washing process itself is carried out as follows.

• Turn off the hot water tap to prevent water from spilling onto the floor. To be on the safe side, we install plugs on the pipes.
• After this, we unscrew the nuts that secure the device. To do this, you can use a special pipe wrench. We dismantle the heated towel rail.
• Use a soft wire rope equipped with a brush at the end to clean the towel. To knock down salt deposits from the inner surface that have already hardened, you will need to tap the device.
• Now we rinse using strong water pressure. The best way to do this is to put a hose on the tap and put its other end inside the heated towel rail.
• If it becomes clear that water comes out of the heated towel rail perfectly, it can be replaced.

If the problem is turning off the hot water, and the heated towel rail is built into the heating pipe, then the only solution here is to transfer it from this pipe to the hot water supply pipe. But nothing can be done here on your own, and you will need to involve heating system specialists and plumbers.

If there is simply no coolant circulation, then you can still try to drain the hot water in the most basic way. You just need to open all the taps in your home - in the kitchen and bathroom. The method can hardly be called cheap, but sometimes it helps.

Electric heated towel rails - is it difficult to replace heating elements?

Electrical appliances come in two main types - cable and those equipped with tubular electric heaters. If the cable heated towel rail is cold, then most likely it will not be possible to repair it; the only way out is to replace the equipment with another one. The situation is much simpler in the case of electric heaters. You should know that the heating element is located at the bottom of the equipment, so access to it is not limited in any way.

Electric heated towel rail

A heating element heated towel rail may not heat due to a lack of coolant, as well as due to natural wear and tear. Its design consists of the following elements:

• tubular heater;
• quartz sand located in a tube;
• spiral in the sand.

The spiral is necessary to heat the sand, which transfers thermal energy directly to the tube. This is how water is heated, while the coil is always in a cooled state. The lack of coolant causes the spiral to fail due to melting and overheating. In working condition, the heating element must always be in water. If there is a problem, you can purchase another heater and install it - this is a fairly quick and simple operation.

First steps. Slab countertops

Sano published a blog entry in Furniture made from slabs, solids, and various differences, October 6, 2022, blog entry

The first attempts to make something from the brought slabs. Although there may be some attempts, the material costs money and the right to make mistakes is as much as there is money in your pocket. Train at your own expense, as they say.

Therefore, each board is carefully inspected and tried on; the proverb about measure seven times is in action.

The work itself is not tricky, creative, there are several boards and they need to be selected so that they look beautiful and there is no overspending. All sizing and trimming is done with the minimum possible removal of material, simply sawed off a little here, cut a little there with a chisel.

Connection to hot water riser

A dead-end circuit has one hot water supply pipe without a return outlet. If the water is not used for a long time, it cools down. In order for the heated towel rail to heat up, you need to open the tap and let the water run until it gets hot.

Nowadays in multi-storey buildings they make distribution risers for hot water supply to the bathroom, kitchen, and to heat the dryer towels. At the lower end they are connected at one point to the pipe supplying hot water.

The upper ends are connected by jumpers and cut into a pipe that passes cooled water back to the boiler. It's called return. With constant circulation, the water temperature in both pipes is approximately the same. With this scheme, the towel dryer can be connected both to the supply pipe and to the return pipe. It will work properly if there is hot water circulation.