Repair of gas boilers do-it-yourself signal instruction

In detail: do-it-yourself signal gas boiler repair instructions from a real master for the site my.housecope.com.

The gas burner control unit of the KOV-ST “Signal” boiler has stopped responding to a turn of the control knob of the gas burner device. Naturally, he made a request to call the masters of Sakhatransneftegazsbyt. Having examined the boiler, the masters came up with the verdict: the gas burner control unit is out of order, therefore it is necessary to find this unit or buy a new boiler. In the city, no one sells such boilers, therefore the spare parts are the same.

I looked at the marking of the gas burner adjustment unit on the boiler, it says BRGG-2EN. I found this block on the Internet and ordered

Ten days later I received an order for the BRGG-2EN. When they wanted to install it, the unit turns out to be not the one installed in the boiler, it has a different type of thermocylinder. A study on the Internet showed that I have a block of a sample before 2006 and is called BRGG-1E, i.e. at the factory, the marking was written by mistake of a block of a new sample.

In my boiler, the thermal bulb is installed in a pipe, which is closed with a union nut. And the resulting block is a new-sample thermal cylinder, as they say on the Internet, is fixed with a clamp.

I had to look for the causes of the malfunction in the old control unit. They removed the control knob for the mode of the gas burner device from the old and new units and compared the stroke of the pusher. The moves of the pushers are the same, which means they are in good order. By unscrewing 4 screws from both blocks, the gauge units were opened. The new block has a simpler gauge unit than the old gauge unit. On the old gauge assembly, the assembly of the assembly is more complicated. There are two disks with a complex configuration. One disc is thin concave of non-ferrous metal with 4 holes and a protrusion in the middle, and the other is thicker with a hole in the middle on one side with a conical notch. After discussing the gas flow, we changed the relative position of the two discs and assembled the unit. To our surprise, when the boiler was started, the control knob for the mode of the gas burner device started working and began to increase the gas supply.

Video (click to play).

Many malfunctions of a gas boiler can be eliminated with your own hands, without resorting to expensive services of the gas service or no less expensive private specialists for the maintenance and adjustment of gas equipment. The only rule that we will immediately make a reservation about is that you need to understand what you are doing and for what purpose.

Seasonal maintenance of a gas boiler consists in cleaning it from contamination and checking its functionality. To access the boiler elements, it is necessary to dismantle the casing or casing. To do this, we decide on the method of its fastening, for different models of boilers this can be done in different ways. Most often these are several self-tapping screws and several latches in the upper part of the casing.

Having gained access to the internal parts of the boiler, we do not remove anything else when performing seasonal maintenance. Using a soft metal brush, a toothbrush and fine-grained sandpaper, we proceed to remove carbon deposits from all parts of the boiler:

heat exchanger;
burners;
igniter, if available.

We use the aforementioned tool wherever it is convenient, without especially leaning on the brush for metal. Next, blow out the collected dust with a compressor. You can use a rubber tube or a medical dropper tube by simply blowing into it and guiding the other end into the boiler.

Important! Any work on the boiler is carried out with the gas valve closed.

Using a thin awl or a strong needle, you need to clean all the holes on the burner and igniter, and then, after cleaning them again, for example, with a toothbrush, blow again.If there are overhead sensors, the places where they fit to the parts of the boiler should be lightly cleaned with emery paper and then wiped with a soft woolen cloth.

The ignition and flame control electrodes are well cleaned only with a woolen cloth, without the use of cleaning agents. If there are immersion temperature sensors, it is necessary to remove them from the sleeves, select the liquid present there from the sleeve, thoroughly clean the sleeve inside using a small metal brush or a loose piece of steel cable of a suitable size. After rough cleaning, the sleeve is cleaned with a cloth wound on a screwdriver, then the sleeve is filled two-thirds with machine oil and the sensor is installed.

After completing these works, the boiler is thoroughly vacuumed. In accessible places, dust and dirt are cleaned with a damp cloth. We put the trim in place. We check the presence of draft in the chimney by attaching a sheet the size of a notebook to the chimney opening, or by throwing a stream of smoke into the ignition ignition hole, the gas valve at the lowering to the boiler must be closed.

We check the seals and possible gas leaks using the soaping method. In the presence of normal draft, a test run of the boiler is carried out, which must be filled with a coolant. In parallel with the work on cleaning the boiler, it is visually inspected for mechanical damage and coolant leaks. At this point, the seasonal service can be considered complete.

It is produced with a solution of hydrochloric acid, purchased in the trade network and designed specifically for this purpose. Cleaning is carried out for the main heat exchangers of wall-mounted gas boilers and heat exchangers for hot water preparation. The channel cross-section of such heat exchangers is small, which is why they are susceptible to contamination with salt deposits.

Cleaning of the water jacket of floor-standing gas boilers, as a rule, is not performed. The heat exchanger must be removed for cleaning. To do this, remove the boiler casing, unscrew the supply pipes to the heat exchanger, after draining the water from the boiler.

We take out the heat exchanger from the boiler. Wear rubber gloves and use a plastic container to collect the used acid. The method is not complicated. Carefully pour the acid solution inside the heat exchanger until it is completely filled. In the event that the heat exchanger is clogged with scale, active foam will be released. Let us leave the heat exchanger for 10-15 minutes.

We drain the spent acid into a container and re-fill the heat exchanger with a new portion. We are waiting for the same ten minutes. We drain the solution and rinse the heat exchanger with running water. We put on a piece of hose on the nearest water tap and spill the heat exchanger with water. Let's fill the heat exchanger with the acid solution again. If there is no active foam generation, and when the heat exchanger is spilled with water, no significant resistance to the flow is visible, then the heat exchanger is flushed and you can reinstall it in the reverse order.

The method of cleaning the burner from carbon deposits has already been described above. However, with strong soot, it is not always possible to cope with only mechanical cleaning. For such cases, special chemicals are used. It makes no sense to recommend anything, all tools are quite effective. The cleaning method boils down to applying the agent in the form of a solution to the surface to be cleaned, holding it for a certain time and then removing the exfoliated carbon deposits, usually mechanically. In more detail, you must familiarize yourself with the cleaning method by one means or another when purchasing it.

In especially difficult cases, for example, when a heat carrier gets on the burner, it must be completely removed from the boiler, immersed in a cleaning solution for several hours. Then remove the burner, ignite in the flame of a portable gas burner. After another application of the solution, using a metal brush or a brush, remove the remaining carbon deposits.

The flue gas duct is checked using a mirror. We introduce the mirror into the channel at a slight angle. In the mirror, we should see a light at the end of the chimney. When performing this operation, it is convenient to use the so-called selfie stick, with a mirror attached to it.

To eliminate the leak, it is necessary to unpack the connection, clean the threads from the old tow and paint. Then, using FUM tape, thread sealing or thread lock, seal the connection again. Check the quality of work by filling the pipeline and the boiler with water.

All accessible areas of gas leaks must be washed with a soap solution or a special gas leak checker. The solution for soaping is prepared from laundry soap by shaving it into a container with warm water and stirring until a thick foam is obtained. If gas leaks, a soap bubble will blow out on the foam. The leak can be repaired in the same way as the water leak through the threaded connections.

Replacing a gas boiler burner will require more attention and care. The purchase of a new burner should be exactly the same model as the one installed on your boiler. Never install a burner not designed for your boiler model.

The beginning is the same - we remove the boiler casing. Having gained access to the burner, we carefully inspect the tubes and sensors connected to the burner. Their location should be remembered so that when assembling a new burner you do not confuse which one to connect to.

How to remove a gas burner. 1. Fixing the burner to the combustion chamber housing. 2. Wires for electrode igniter and flame sensor. 3. A branch pipe for supplying a gas-air mixture

Due to the wide variety of boiler models, it is impossible to give specific recommendations, but in any case, there will be:

a tube for supplying gas to the burner;
gas pressure sensor to the burner;
gas valve.

It is possible that there is a control tube from the draft sensor or electrical connection (wires) from the same draft sensor or temperature sensor. When using a burner of the same model as yours, remembering and connecting all the wires and tubes will not be difficult.

Replacing a horn burner installed in a wood-burning stove is even easier to cope with. We unscrew the screws of its fastening to the plate and two tubes: gas supply and gas supply to the igniter. We take out the old burner, insert a new one, screw on the tubes, tighten the burner mounting bolts.

It is not worth repairing the primitive automation of such a burner, the result may lead to unsafe operation of the boiler. The most difficult thing is to replace the burner of a wall-mounted gas boiler, stuffed with electronics and a large number of sensors. But do not panic here, the principle is the same: it is good to remember the location of all connections to the burner.

Trying to increase their importance, gas specialists say that such a burner should be "tied" to the boiler by flashing the electronic unit or by adjusting the boiler. The burner is just iron, which cannot be adjusted in any way. The settings may require combustion as such, but this is no longer relevant to the replacement of the burner itself. If the burner is made for the model of the boiler on which it is installed, then the combustion will be correct, however, provided that they did not try to regulate it on the old burner.

The need to replace the temperature sensor arises when, when setting a specific temperature mode of operation, the boiler either does not comply with it, or, even worse, goes into boiling mode, which can lead to rupture of the water jacket of the boiler or its heat exchanger.

Temperature sensors, according to the method of installation in the boiler, can be overhead and submersible. Clamp-on sensors are installed on the boiler pipes with clips that press the sensor against this pipe. Replacing them is very simple. Disconnect the old one - put the new one. We put the chip (electrical contact) in place of the old one.

Immersion sensors can be of two types: direct immersion and located in a well filled with oil. When replacing the first, it is necessary to drain the water from the boiler, unscrew the sensor. Pay attention to how the threads were sealed at the sensor mount. This can be simply a tapered thread, using a thread lock (adhesive), gaskets, or O-rings. Sealing with flax and other materials is not used. Install a new sensor using the same sealing method.

When replacing the sensors installed in the sleeves, there is no need to drain the water from the boiler. After loosening the fixing nut, pull out the sensor, check for the presence of oil in the sleeve, install a new sensor, fixing it with a nut. The simplest version of such a sensor is an alcohol thermometer installed in the sleeve for visual monitoring of the temperature in the boiler.

A modern gas boiler is a complex device consisting of both mechanical elements and electronic equipment. Therefore, not in all cases can you figure out how to repair a gas boiler yourself.

However, if an element that is not directly related to the gas supply breaks down, then with minimal skills, it is possible to eliminate the malfunction without calling a specialist. How to do this is described in detail in the article.

A typical gas boiler consists of many elements, which can basically be grouped into 3 groups:

Burner.
Blocks providing safety.
A heat exchange unit equipped with several additional devices, which include a fan, a circulation pump and many others.

The structure of this mechanism can be simplified as follows.

But if you detail the picture, you can find about 2 dozen different elements in the device.

The main danger during repairs is a possible gas leak. This can happen due to improper repair, dismantling or installation of equipment that is associated with the fuel supply.

Therefore, it is better to entrust the repair of these parts of the structure to a specialist. Also, do not troubleshoot the electronic equipment of gas boilers on your own. Automation is a specific device, therefore, without appropriate qualifications, it is almost impossible to correctly carry out restoration work and repair such equipment yourself.

All other elements can be repaired by yourself, for example:

Heat exchanger flushing performed manually (for this, the unit is dismantled, after which it must be correctly put in place). It is possible to carry out these works without dismantling - using pumps.
Chimney cleaning will be needed in cases where there is a problem with traction (mechanical or chemical removal of blockages is performed).
Fan repair pressurization by lubricating its bearings with technical oil.

In fact, it is possible to repair a gas boiler on your own only in those cases when it comes to mechanical damage or blockages that can be easily identified visually (or by smell).

The rest of the breakdowns are considered more serious, therefore they are eliminated with the help of a specialist, and not with your own hands.

Before figuring out how to repair a gas boiler with your own hands, it is useful to understand exactly why malfunctions occur. Correct understanding of the reasons will help to avoid the problem in the future. Practice shows that 4 harmful factors are most often affected:

Electricity drops - this problem is especially relevant in remote settlements and villages. Modern equipment is necessarily equipped with stabilizers, as well as energy storage devices, which ensure the operation of the device for a short time even after the source is turned off. Therefore, if there are no such devices, you should purchase them in advance.

Poor quality water - this problem arises in cases where the equipment is used not only for heating, but also for obtaining hot water for domestic purposes (double-circuit gas boiler). The equipment is not damaged by the water itself, but by the presence of salts in it, which increase the hardness. If the concentration of these insoluble substances is high enough, it can lead to equipment wear in as little as 1-2 seasons. Therefore, it is necessary to take care of the installation of filters that purify water.

Installation errors can lead to rather serious consequences, including fatal breakdowns, failure of all equipment. Therefore, this work can only be entrusted to qualified specialists.
Finally, a role can also be played by frosty winters... Usually, during such a period, the neighbors turn on the equipment at full capacity, and in this mode it works for a long time. As a result, the pressure in the gas pipeline system drops significantly, and the boilers begin to work largely in vain. At this point, you can use equipment that runs on a different fuel (for example, diesel). It makes sense to purchase it if the region has long, harsh winters.

If you are not sure what is faulty, it is strictly forbidden to start repairing the gas boiler yourself, since this carries a potential danger. Correct diagnostics is the most important requirement for work, especially if they are carried out independently.

In modern devices, breakdowns are diagnosed by electronic systems (sensors) that show the temperature and other important indicators. If a serious malfunction is detected, the system simply turns off the gas boiler in order to avoid unwanted, dangerous consequences.

In other cases, it is possible to detect a breakdown on your own only with the help of the senses:

visually;
by smell (gas leak);
by the sound of the equipment;
to the touch.

First of all, you need to refer to the instructions. Even if the original version is lost, it can be easily restored by downloading the desired brochure from open Internet sources. Almost all instructions have a section and cards describing the most common malfunctions, as well as ways to diagnose and eliminate them.

Such short tutorials describe in detail what signals the automatic display system gives in case of certain malfunctions:

blinking of lamps in a certain mode (fast, slow) and in a certain color (red, yellow, green);
continuous burning of a light bulb;
the display shows a specific error code (usually a two-digit number).

Even if repaired on one's own the gas boiler does not work, you still need to print the instructions specifically for this model. A specialist called at home should also familiarize himself with the features of the mechanism, including with the help of a brochure from the manufacturer.

The most common breakdowns of a gas boiler are described in the table.

Any gas equipment (including boilers) belongs to high-risk household appliances. The mixture of natural gas and air is extremely explosive. Therefore, the repair of gas boilers with their own hands can only be carried out by a specialist who has experience of this kind of work and is well acquainted with the design features of modern heating boilers. At the same time, timely diagnostics of possible malfunctions of such equipment makes it possible to facilitate the task of the gas service specialists called for urgent repairs, and extends the period of reliable operation of the boiler itself.

poor ventilation of the room;
unsatisfactory traction.

Unlit natural gas can be sucked into the room from under the upper housing cover. An explosion can also occur as a result of a gradual increase in concentration.

Pressure meter

Control and follow-up systems of double-circuit gas wall-hung boilers Image - Do-it-yourself signal repair of gas boilers instruction

Gas boiler complex mechanism... It can be divided into 3 main parts: electronics, gas pipes and burners, heat exchange unit (pump, tank, fan). Only the last part can be repaired on your own.

Attempts to restore the first two parts, without proper skills, will lead to final breakdown boiler, gas leakage and other negative consequences.

Gas boilers rarely break... This is due to natural wear and tear equipment, or because of factory marriage... Other cases of breakdowns are necessarily associated with the following factors.

The boiler can break down due to water. At risk, first of all, there are two-circuit devices used not only for heating, but also for hot water supply.

The fact is that rust from the pipeline, other fractions, clog the thin tubes of the heat exchanger during the year.

Avoiding water quality troubles can help coarse filter... It is installed during installation per feed pipe liquids. For greater security, you can add to the system fine filter, or install a complete cleaning system.

Household appliances are resistant to power surges and shutdowns electricity. But a gas boiler is a finer piece of equipment. A power surge will cause the boiler to shut down or damage the electronics. A malfunction of the device or a power outage will lead to freezing of the heating pipes.

In order to avoid sad consequences, they establish at least one of the additional devices.

Stabilizer - a device that will solve the problem of power surges. Its size is small, it is installed both in an apartment and in a private house.

Photo 1. Electronic voltage stabilizer Resant Lux for a heating boiler. The device is wall-mounted.

Uninterruptible power system. Will equalize the input voltage. Allows the boiler to work for a while in the absence of electricity. Suitable for use both in the apartment and in the house.
Gas generator. It does not affect the stability of the network in any way, but it can save with a prolonged power outage. Used only in the private sector.

Attention! When buying a generator, check if it really is single-phase.

Installation of complex equipment layman will entail serious consequences. In frequent cases, the following problems occur:

During installation neglected grounding... This leads to a build-up of static on the body of the device. When an electric arc occurs, the boiler automation often fails.
After installation did not release air from the system... The resulting plug will lead to rupture of the coolant pipes and damage to the pump.
Harness violations a gas boiler system, with a cast iron heat exchanger, will cause a split in an important part of the apparatus.

If the installation of the gas boiler is carried out correctly, operational problems arise only due to weather conditions... In cold winter, the desire to keep warm pushes people to use the boiler at maximum mode.The equipment withstands such conditions, but the gas system does not. A decrease in fuel pressure leads to interruptions in the operation of the apparatus. The automation starts to turn off the boiler. The problem is that this cannot be called a breakdown and it will not be possible to eliminate it.

Any malfunction of the gas boiler must be dealt with by a specialist. However, the opportunity to use the services of a master is not always there, and breakdowns are trivial... Let's consider the problems that can be solved on our own.

Usually the smell of gas appears when it leaks from the threaded connection of the supply hose... If there is a smell in the room where the boiler is installed, you need to open the window and turn off the boiler... Then follow the instructions:

Prepare the necessary things: soap solution, FUM tape, open-end wrench or adjustable wrench.
To apply mortar on all threaded connections. If bubbles begin to inflate, the leak has been found.
Close the gas valve.
Key expand the connection. Rewind on the external thread of the FUM tape and collect everything back.
Reapply solution and restart the gas supply.
If the leak has been repaired and the gas smell has disappeared, remove leftovers solution.

Attention! When the leak cannot be found, turn off the gas, call a specialist.

If during the operation of the boiler the sound emitted by the turbine has disappeared or has decreased - indicates a malfunction of the blowdown fan. For repair you will need: screwdriver, new bearing, cloth, grease.

Necessary turn off boiler and turn off the gas.
Remove the turbine.
With a rag to clear with turbine blades dust and carbon deposits.
Inspect Electric Coil fan for blackening. If everything is in order, move on or replace the fan.
Disassemble the fan housing. Inside the turbine shaft is installed bearing, his needs to be replaced. Some fans have sleeve instead of a bearing. In this case, her need to be lubricated.

The turbine may also not work due to undervoltage or malfunction of the control board. The first is eliminated with the help of a stabilizer, but the second only by calling a specialist.

Chimney problems arise only at boilers floor type... This is due to its size and vertical position. Hinged devices do not need to clean the chimney.

Chimney consisting from metal parts, cleaned with a metal brush. It must be disassembled and the accumulated soot removed mechanically. Whole the chimney is cleaned with special vacuum cleaners or chemicals. But for this you need to call a professional.

Photo 2. Three ways of arranging a chimney for a floor-standing gas boiler. The first option is the hardest to clean.

Boiler overheating is associated with contamination of the heat exchanger... To clean the device you will need: special hydrochloric acid solution, adjustable wrench, FUM tape, metal brush. Then follow the instructions:

Turn off the boiler, shut off gas and water.
Remove heat exchangerusing an adjustable wrench.
Clear it with a brush.
Through the pipe pour over into the heat exchanger acid solution... If foam appears, it means there is a lot of scale inside.
Pour out solution and repeat procedure.
Rinse.
Install back, beforehand wrapping all threaded connections with FUM tape.

Problems usually arise with combustion electrode. If the flame of the burner goes out after a few seconds, and the boiler gives an error, then the problem is in the combustion sensor. We turn off the boiler, turn off the gas.

To repair the electrode, you will need sandpaperwith the help of which the probe probes are cleanedwithout removing it. If the breakage remains, the sensor changes.

Exists two problemswhich lead to spontaneous boiler shutdown. The combustion sensor is broken or chimney clogged... The repair of both faults is described above in the article.

Watch the video, which tells about the malfunctions that occur during the operation of the boiler.

Most boiler breakdowns are repaired on their own, but this does not mean that you need to neglect the help of a specialist. Gas equipment is potentially life-threatening.

And also do not forget about maintenance... Cleaning the heat exchanger and chimney will save you from possible breakdowns.

Gas boilers today are in enviable demand, they are distinguished by a high level of functionality. But at the same time, over time, their performance is greatly reduced, and such problems lead many users to a dead end. To avoid unexpected repairs, timely maintenance of these devices is essential. If you are already having difficulties, then you can repair gas boilers with your own hands. In this article, we will provide ways to eliminate typical malfunctions of such devices.

In fact, any part of the boiler can break down, because there are many reasons for this. Most often this happens due to poor-quality assembly of units, improper operation and foreign objects getting inside the expansion tank. Be that as it may, before you repair a gas boiler, understand its device. It is recommended to pay special attention to the safety group, which is responsible for the correct operation of the instruments.

These elements include:

Traction sensor with a plate that is rated at 75 degrees. This device monitors the operation of the boiler chimney, it reacts to any malfunctions during the removal of combustion products into the chimney and their exit from the smoke trap.

Important! In the event of a malfunction, the device heats up, starts to work, so many equip it with an additional gas alarm.

Protective monostat. It protects the boilers from incomplete fume extraction due to a clogged chimney or heat exchanger.
Limit thermostat. Responsible for controlling the water in the boiler - as soon as it boils the overheating sensor, it immediately turns off the device.
Ionization electrode. This element controls the presence of a flame. Repair of many boiler models begins precisely with checking the electrodes, because if the device starts working without a flame, it can explode.
Disruptive pressure control valve. The system causes the device to dump dangerous excess when the pressure exceeds 3 bar.

Important! If any of the listed sensors fail, then the residents of the house can breathe in carbon monoxide, missed by the system. An explosion may occur as a result of malfunctioning of the electrode.

Modern boilers are rather complex household appliances. As we have already specified, even a minor malfunction can lead to an explosive situation. Therefore, if you are not confident in your abilities, it is better not to undertake repairs yourself.

When repairing a gas boiler, the following factors must be taken into account:

If the room is filled with smoke or there is a clear smell of gas, then immediately turn off the device, open all windows and doors.
It is quite possible to repair the device on your own, if, for example, it is necessary to replace a broken combustion sensor. It is enough to disconnect it from the gas supply, then let it cool down completely, check for the presence of traction, and restart.

Important! If you plan to check for traction, the first step is to make sure that the room does not smell of gas. Then bring a sheet of paper to the chimney, if it does not move, then there is no draft. Do not turn on the boiler under any circumstances, call the master immediately.

Basically, such devices fail due to clogging of the heat exchanger. It is easy to solve this problem: in order to repair the heat exchanger of a gas boiler with your own hands, you just need to clean it.

Important! If the automation has broken down, then you cannot do without a professional.

When the fuel supply pipe becomes clogged, it is enough to disconnect it from the system, thoroughly clean and rinse it, then dry it and return it to its place.
If a flame that is constantly burning in standby mode suddenly dies out, then you should use the instructions and use it to check the serviceability of the unit.

Of course, it's not worth repairing the gas boiler control board with your own hands, because, as we found out, it consists of a large number of elements responsible for the safe operation of the device. If the problems turned out to be typical, then feel free to get down to business.

Perform troubleshooting according to the instructions:

Heat exchanger. This is the weakest and most problematic part of the boilers, which is made of copper or stainless steel. It should be cleaned once a year from accumulated soot with an ordinary metal brush. A metal dishwashing sponge is ideal for this, as it is more gentle and gentle.
Blower fan. Even though the fans run at the lowest RPM and DC, they rarely break down. The most problematic places are the bearings. If you find that the fan has stopped developing the required number of revolutions, then first of all disassemble the boiler, remove its rear part, then pull out the stator and lubricate the bearings with machine oil.
Chimney. Often it is the coaxial chimney that clogs up, and the device stops working normally. To fix the problem, you need to remove it from the system, thoroughly clean every part of soot, then return everything to its place.
Valve. Do-it-yourself gas valve repair of a gas boiler is even easier - you just need to purchase a new part and replace the failed element with it.

Important! A gas boiler is a potentially dangerous equipment that, if used incorrectly and untimely elimination of problems, can behave unpredictably.

DIY gas boiler repair

Knowing the main causes of malfunctions and the procedure for eliminating them, you can repair your gas boiler with your own hands. This is a very painstaking, responsible, but in most cases relatively easy job.

Contents of step-by-step instructions:

First of all, it is necessary to establish why any malfunctions may occur in the operation of gas heating boilers. A number of different factors can lead to problems.

Modern gas boilers are equipped with various automation equipment. These funds, in turn, are powered by electricity. And, despite the fact that the 21st century is already in the yard and systems for the use of alternative energy sources are being actively developed around the world, the problem of stability of power grids remains relevant for many regions, especially for remote villages and all kinds of summer cottages.

A sudden power outage or a strong surge in electricity is one of the main enemies of any modern gas boiler.

To avoid all the accompanying troubles, buy a quality stabilizer in advance. Do not spare money to buy this device - there is little sense from cheap models, so it is better to immediately allocate funds to purchase a good stabilizer from a well-known manufacturer.Be sure that in the event of a breakdown of the automation, you will spend much more money on its repair and replacement.

At home, wall-mounted models of gas boilers are often used. Such devices are simultaneously responsible for both space heating and hot water preparation.

The design of wall-hung boilers includes a flow-through heat exchanger. Low-quality hard water with various impurities is the main enemy of the heat exchanger of a gas boiler. At the same time, under the influence of low-quality water, the heat exchanger can fail in just one season.

Install special filters to prevent such damage. The best option is a complete water purification system. With it, your boiler will work as long as possible, and using purified water is much safer for health.

Any knowledgeable person will tell you: only qualified specialists should be engaged in the installation and piping of gas heating equipment.

Even the slightest mistakes at the stages of installation and connection of equipment can lead to irreversible consequences. For example, an incorrectly executed piping in the case of a cast-iron gas boiler more powerful than 50 kW will lead to the fact that the unit will simply split at low temperatures.

If you are not an experienced gas operator, entrust the boiler installation to professionals.

Therefore, if you are not an experienced gas operator, entrust the installation of the boiler to professionals - this way you will save yourself from many problems in the future.

Unfavorable weather conditions can also lead to the appearance of many different problems. In frosty winters, people turn on the heating at almost full capacity. This leads to a significant decrease in pressure in the gas pipeline system. As a result, boilers cannot fully realize their potential.

You will not be able to solve this problem on your own - you still cannot explain to your neighbors that by their actions they only aggravate the situation. As a solution to the problem, you can install an additional boiler that runs on a different fuel.

Automatic solid fuel coal-fired boiler with hopper

A modern gas boiler is a complex and potentially dangerous system. The main danger of such units is the risk of a gas explosion in the event of improper handling of the equipment or untimely elimination of various malfunctions.

Various kinds of automation are responsible for maintaining the operation of the gas boiler at an optimal level. An inexperienced user is often unable to understand its device. Therefore, it is better to immediately invite specialists to troubleshoot serious problems.

On your own, you can try to eliminate only visible damage and various contaminants that have led to the failure of the pipe, chimney and other parts of the boiler.

Typical malfunctions of gas boilers

There are a number of typical problems that you can fix yourself in most cases. Problems will also be listed, in the event of which you can only protect yourself before the arrival of a specialist.

If a distinct smell of gas or smoke appears in the room, immediately turn off the boiler and leave the room, opening it for ventilation.

Gas boiler functionality diagram

Call a professional immediately. Trying to solve the gas leak problem on your own without the necessary skills is extremely dangerous and unreasonable.

If the flame sensor or the gas supply pipe breaks down, turn off the boiler, close all gas valves and let the unit cool down completely.

Return to the area after a while to check for the smell of gas. If everything is in order with the draft, try to turn on the boiler again. If there is no thrust, immediately call a repairman.

Overheating is one of the most common problems in modern gas boilers.The reason for this may be a malfunction of the automation equipment or a clogged heat exchanger.

It is impossible to cope with the repair of automation without the appropriate knowledge.

You can also clean the heat exchanger with your own hands. The most common materials for the manufacture of heat exchangers are copper and stainless steel. There is usually no problem cleaning them, but be extremely careful anyway.

Primary heat exchanger for wall mounted gas boiler Beretta

According to the recommendations of the manufacturers, the heat exchangers must be cleaned of soot every few years (each manufacturer indicates a specific interval in the instructions for their equipment).

Primary heat exchanger (heating circuit) of the gas boiler Rinnai SMF

To clean the heat exchanger, simply remove it and clean it thoroughly with a metal brush. In the case of a copper heat exchanger, it is best to replace the brush with a metal sponge used for washing dishes.

The problematic place of fans is their bearings. If the fan of your boiler stops developing the set number of revolutions, try to eliminate the problem as soon as possible.

Fan (3311806000) for Daewoo gas boiler

To do this, remove the back of the fan, take out the stator and lubricate the bearings. Machine oil is fine for lubrication, but it is best to use a higher quality carbon compound with heat-resistant properties if possible.

Fan RLA97 (Aa10020004) for gas boiler Electrolux

Also, an interturn short circuit can lead to problems with the fan. Only a specialist can cope with the elimination of this malfunction. Return the stator for repair to replace the winding, or immediately replace the faulty unit with a new device.

Gas boiler chimney diagram

Often, excessive clogging of the coaxial chimney leads to the appearance of various malfunctions in the operation of a gas heating boiler.

Remove the chimney and thoroughly clean all of its components from soot. So you will not only return the previous level of efficiency of the unit, but also significantly increase the efficiency of the boiler.

The boiler can shut down spontaneously for several reasons. This usually happens due to a malfunction of the combustion sensor. This problem, in turn, most often leads to contamination of the gas pipe.

Draft sensor 87 ° C for Thermona boiler

Remove the branch pipe, rinse it thoroughly with water, clean it with a cotton swab and blow it off the remaining moisture. Put the pipe back in place and try to turn on the boiler. If it doesn't help, call the wizard.

No wonder they say: the best repair is prevention. Gas boilers require annual preventive maintenance, which must be carried out before the start of the heating season.

Whenever possible, maintenance should be carried out twice a year, before and after the heating season.

Check all the previously discussed boiler elements for their serviceability. Follow the preventive maintenance recommendations given by the manufacturer in the instructions specific to your boiler. Eliminate any malfunctions that arise in time, if possible.

Remember! A gas boiler is a potentially hazardous equipment. Incorrect use and untimely troubleshooting can lead to irreparable consequences. Therefore, be careful and do not engage in any repair work if you doubt your ability and correctness of action. Otherwise, follow the instructions provided.

Video (click to play).