Do-it-yourself Keber gas boiler repair

Found a malfunction with a burner on a Keber floor boiler. When it is turned on, the burner takes all the gas on itself so that it is not enough for the igniter to work. The automatic equipment of the Eurosit-630 system has been installed. Can this be somehow eliminated?

Perhaps the problem is the gas pressure in front of the automatics. You should check it in static and dynamic modes. The difference between them should not be more than 50 mm. Also, you may have an obstruction in the pipeline. Maybe a breakdown of the gas meter or a clogged tap in front of the device. Low pressure in the network and malfunctions in the EHR automation also give similar symptoms.

The gas floor boiler Keber 12.5 works somehow strangely for me. The burner works for 4-12 minutes, I think it is too long. If it goes to the fuse, then the combustion is 10 minutes. What could be the problem?

The burner operates until the device reaches the temperature set in the settings. You may have a lot of heat loss in the system.

In 2016, we connected the Keber KSG-10K-06 gas floor boiler (manufactured in 2012). Recently, he began to turn off himself. What could have happened to him?

We recommend that you pay attention to the igniter, as well as check all contacts and the serviceability of the draft sensor.

The problem with the regulation of the Keber KS-G-8K floor-standing boiler. Regardless of which mode to set on it (from 1 to 8), it always shows a temperature of 80C. Why is this happening?

Most likely, a breakdown of the thermal sensor. There may also be a problem with the bypass valve.

Keber KS-G (automatic Comfort-36) broke down. The burner, after switching on, works for a couple of minutes and goes out. The device was cleaned, everything that could be blown through. The problem has not gone away. I also found an incomprehensible adjusting screw. Tell me why you need it, and can you touch it?

In your case, there are two possible reasons: the thermocouple is not warming up well or there is a signal from the draft sensor. We do not recommend touching the adjusting screw, it will not affect your situation.

I have a gas floor boiler KSG-12.5 connected with Eurosit 630 automatic equipment. The following malfunction occurred with it. After turning it on, the igniter is also turned on. Then the main burner comes on. After a while, they both gradually fade out. If you turn on only the igniter, then it will work without problems for as long as you like.

Your unit is running low on gas supply. Perhaps the system is clogged somewhere (filter, valve, meter, etc.).

It is not possible to turn on the gas boiler KS-G-10. When I hold down the gas button, I hear that it has gone. Then I do it strictly according to the instructions. I light a match, wait a couple of seconds, release the button and turn the knob to the value I need. The unit goes out as soon as I remove my hand from the button. What's happening?

A huge number of breakdowns can provoke your problem. For example, poor operation of the igniter, breakdown of a thermocouple, no contact with the draft sensor.

We have a gas boiler KS-G-25-06 with Eurosit 630 automatic equipment in operation. In the process of work, we lost the door on which a factory sticker was applied with data about it. We know that the approximate year of issue is 2011-2012. Is there any other way to identify him?

If only the year of manufacture is needed, then it can be viewed on the burner, and also all the data is in the passport of the device.

Is it possible to install a 24 kW burner on a 10 kW machine?

No. A 12 kW burner is suitable for you.

I have a problem with the device. To eliminate it, it was decided to completely replace the automation and the burner. The store recommended a Hubert 24 burner. Is it true that it can be installed on a Keber floor boiler? And will this help to eliminate the fact that my main burners do not want to go out in any way?

Personally, I have not seen or used this burner, but judging by the instructions, it is no different from all other burners.The only thing that confuses is that instead of the SIT gas valve, a cheaper Chinese analogue is installed there. The main thing is, when you buy, see that it fits your boiler in terms of power. And yet, check the possibility of the correct operation of the temperature sensor.

Why does Keber run on gas, there is a flame coming from the jets?

Bypass valve replacement required.

Why does Keber 12.5 with Arbat automatics constantly turn off?

Most likely, the problem is contacts. Look at the wires going up from the thermocouple and wiggle where they are attached.

Malfunctions occur during the operation of the Keber KS-G gas floor boiler on installation 6. When operating in this mode, it heats water up to 60C and turns off. He starts heating the water again only after it reaches 40-50C. Why such a strange cycle of work?

You may need to reconfigure the thermostat. I also admit the presence of traffic jams in the system.

When the water is heated, you can hear the puffing of the igniter in the Keber KS-G 12.5 boiler. I do not like it. I also note that if the regulator is set to values ​​higher than three, the burner starts to work continuously, without shutting down. If the regulator is put at risk 2, then the burner works out a cycle, as described in the instructions. Which knot is broken?

If everything is normal with the regulator itself and the temperature is reached as specified, then the device simply does not have enough gas.

It was necessary to buy automation at Keber 12.5 (automatic Arbat), instead of the faulty one. After the purchase, I saw that the new thermocouple did not have a union nut, but the old one did. What to do?

The unit has an absolutely standard thermocouple, feel free to unscrew and put the purchased one.

Problems with Keber KS-G-10 with Eurosit 630 automatic equipment. When the regulator is set to a position less than 3, the boiler works absolutely without problems (having typed the desired temperature, it switches to the wick, maintaining it). If the regulator is set to a higher position (from 4 and higher), the transition to the wick does not happen, and it heats up continuously. For example, in position 3, the device stops heating at 60C, and in position 4, it already brings it to a boil, and only after that it slightly reduces the heating. A couple of days ago there was no such problem, and in position 6 it worked stably at 80-90C.

If you have such a problem with the transition to a more powerful mode, then most likely there is a problem with the gas supply. It is also possible that your device does not have enough power or there is a strong heat loss in the system. If the sensor, which is responsible for temperature control, broke down, then the problem would be in any mode. Although, perhaps not all of the kerosene has leaked out, and it partially prevents the gas from flowing. Work on more than three more modes. If the problem persists, try changing the sensor.

Why can't my Keber heat water above 50C?

Problems with the Keber floor boiler 12.5. I hear a click, but the regulator moves smoothly, but there is a deformed bellows at the end (its metal body where it connects to the spring). The flame is regulated automatically. I could not determine if there was a transition of the apparatus to the wick (there were no observations for 30 minutes). But, as it seems to me, the flame has become larger than usual. It seems to me that the screw located inside the bypass was screwed on. I put the traction sensor in its place, while unscrewing the screw for some reason. All possible leaks were checked and eliminated. I put the gas filter in place. How to set up the unit so that it can switch to the wick as needed?

The bypass screw should not be touched as it regulates a low flame. It is bad if you tried to adjust the thermal valve, since you cannot return it to the correct settings yourself.

I have Keber 10 in operation, it has been working for 3 months already. And here's what I noticed. If I put the regulator on the device in position 3, then it heats the water up to 50C and turns off.In this case, the batteries remain cold. The presence of air pockets was checked and eliminated. Did not help. Then I called the technician from the service center, who, after inspection, recommended replacing the pump (due to heating). Performed by putting more powerful one. But he also began to warm up like the previous one. How do I get my unit repaired?

If your device turns off only after reaching the set temperature, then it is fixed. Check the heating system.

For your house of 250 sq. m I installed a boiler KS-G. Arbat 1 stands on it (it seems I was not mistaken). We have this problem, it does not turn off after it starts working, and, as it seems to me, gives too much flame.

You have a problem with your thermal sensor. Adjust it or buy a new one.

The gas floor boiler Keber KS-G-16 K has been in operation for about 6 years, it worked without any problems. But lately he began to emit some clicks incomprehensible to me during heating and cooling. There is no pump in the system and metal pipes are installed. Will he be able to work all winter, and is it possible to repair it with his own hands.

These sounds are made by the metal in your system, which is heating up and cooling down. Your boiler will work quietly for more than one winter, do not worry. Please note that the water outlet from it must be organized higher than the air outlet.

I installed KS-G-10 at home (Eurosit 630 automatic). I checked everything and put it into operation. There was one problem. For some unknown reason, only the left side of the burner lights up. If you release the handle, the burner will go out completely. I do the ignition again and I am already lighting the right side. After that, the boiler starts to work normally. All modes are debugged and work as they should. How can this flaw be corrected?

On a previously removed igniter, it is required to slightly unbend the central and right sides (it is better to do this with a screwdriver with a thin sting).

Keber-12.5 with automatic Arbat, manufactured in 2005, broke down. A gas leak has formed at the junction of the thermocouple and the automation. When the flame passes from the burners to the wick, the accumulated gas ignites, and from this the automation is very hot. How can I repair the device, and why did the automation not track this problem and stop the operation of the device?

Fire could damage the magnetic plug and rubber ring. Better to change them.

This question worries me. If the electricity is cut off, and the pump stops, and the gas continues to burn in the boiler, will something burn out from this?

If you keep the automation in good condition, it will shut down the unit if it overheats. Only the igniter will work, and from it the device will turn on again when it becomes cold.

I changed the automation to Keber 12.5 (Arbat). I specially chose a domestic manufacturer. With modes from 1 to 5 - it works for one and a half minutes and goes to the wick. And the burner no longer starts up (fire from the nozzle is observed). In mode - 6, at first the burner works for one and a half minutes, and then the flame begins to extinguish (and again the fire from the nozzle). Work on the wick for 20-30 minutes, and start the burner again. And already even burning does not decrease and does not increase. How can this be fixed?

You should adjust the bypass valve and the temperature valve.

The use of gas for heating a private house or cottage is very convenient and cost effective. However, this type of fuel is fraught with a serious threat. If, for any reason, the burner suddenly goes out and the gas supply is not shut off in time, a leak will form and this can turn into serious trouble and endanger the lives of people in the room. In order to immediately shut off the gas if the flame is suddenly extinguished and a thermocouple is used for a gas boiler.

In this article, we will talk about what a thermocouple is, why it is needed and how it works, we will consider the main types and most common malfunctions associated with these devices, as well as a method for eliminating them.

Thermocouple is a classic thermoelectric transducer that is used to measure temperature in various fields of industry, science, medicine, as well as in automatic control and monitoring systems for gas boilers, stoves and columns.

It is arranged very simply and can be easily made by yourself. Two conductors of different materials are connected in a ring. One of the connection points is placed in the measurement area, and the other is connected to a measuring device or a converter device.

Photo 1: Thermocouple for gas control device

The principle of operation of a thermocouple is based on the thermoelectric effect, or as it is also called the Seebeck effect. It consists in the fact that a voltage appears at the junction of two conductors of different metals connected in a ring. If the temperature of the junction points is the same, the potential difference is zero. But as soon as one of the junctions is placed in an area with a higher or lower temperature, a voltage other than zero appears and is proportional to the temperature difference. The coefficient of proportionality is different for different metals and is called the coefficient of thermo-EMF.

Photo 2: Design and principle of operation of the thermocouple

The main materials for the manufacture of thermocouples are precious and non-precious metals. Most of the alloys of them have rather exotic names, which are very popular among the compilers of various crosswords and scanwords. There are several types of thermocouples depending on which metal pairs are used in the manufacture. Below is a table with their main types, designations and characteristics:

In automation systems for gas water heaters, stoves and boilers, thermocouples TXA from chromel-alumel (type K), THK from chromel-copel (type L), TLC from iron and constantan (type J) are usually used. Sensors made of precious metal alloy are designed for high temperatures and are mainly used in foundries and other heavy industries.

Photo 3: Sakhalin gas burner for heating boilers and furnaces

Some models working on solid fuels, such as the solid fuel heating boiler "Lemax" Forward, can be equipped with gas burners, in which thermocouples are used to protect against gas leaks.

If you decide to install a solid fuel boiler in your country house, you do not need to worry about what will happen if the fire suddenly goes out. However, when you use gas equipment, you need a non-volatile automation that can shut off the gas supply as quickly as possible if the burner suddenly goes out. For these purposes, a gas control system is provided in modern gas boilers. How does it work?

The system consists of two main parts: a solenoid valve and a thermocouple. One end of the sensor is placed directly in the burner flame, and the other is connected to the solenoid valve, which consists of a core with a winding, a cap, a return spring, an armature and a rubber band that blocks the gas supply.

Photo 4: Non-volatile gas control system for stoves and boilers

Gas control works quite simply. By pressing the gas button, you push the stem inside the coil, charging the spring. According to the instructions for igniting a gas boiler, the supply valve must be held pressed for about several tens of seconds. This time is necessary in order for the thermocouple to warm up and there is enough voltage at its ends to hold the valve inside the coil.

At the moment when the burner goes out, the thermocouple begins to cool down, the voltage at the ends of the thermocouple decreases and at some point, the return force of the spring outweighs the electromagnetic force holding the stem inside and returns the valve to its original position, shutting off the gas supply. This process usually takes several tens of seconds.

One of the features of gas control is that it is completely electrically independent. In large heating complexes, like the domestic pellet boiler "Svetlobor", when the power supply is cut off, the entire control system ceases to function. The thermocouple gas control system is completely electrically independent, and is able to function reliably without the need for an electrical connection.

One of the common malfunctions of gas boilers looks like this: you press the gas supply button, ignite the igniter, hold it for the prescribed 30 seconds, release it and the burner immediately goes out. One of the reasons that can lead to this result is a faulty thermocouple or poor contact with the solenoid valve.

Photo 5: Connecting and checking the thermocouple on the measuring device

You can fix this problem with your own hands without resorting to the services of a master. To do this, follow these steps:

1. Using a wrench, unscrew the clamping nut holding the thermocouple in contact with the solenoid valve and remove its end.
2. We inspect the connector for the presence of various oxides and contaminants. If necessary, carefully clean the contact point with a fine sandpaper.
3. Next, check the thermocouple with a multimeter. To do this, we connect one end to the measuring device, and heat the other with a manual gas burner. The voltage at the ends of a good thermocouple should be about 50 mV.
4. If all indicators are normal, you should put everything back together and try to start the boiler.

If the problem persists, most likely the solenoid valve itself is faulty or there is still poor contact between it and the thermocouple. If the valve is working properly, you should re-clean the connection and try to find such a position of the clamping nut at which good contact is achieved.

Useful: A compensation wire is usually used to connect thermocouples to measuring instruments. In this cable, the cores are made of the same material as the sensor itself. This allows you to significantly reduce the measurement error.

If the thermocouple is out of order, you need to buy a new one. There are many different manufacturers producing these sensors on the Russian market: Arbat, AKGV, AOGV (Zhukovsky plant), Honeywell. Prices for different types are in the region of 600 - 2000 rubles.

For more information on how to repair a thermocouple in a gas boiler yourself at home, see the following video:

Thermocouples are actively used not only in the automation of gas stoves, boilers and water heaters. On their basis, many different thermostats and thermometers have been produced, both for household and industrial use. Many craftsmen on the basis of a thermoelectric converter make chargers and mini power stations with their own hands that can charge phones and other low-power devices directly from a fire or other open fire. We hope you liked our story, and you learned a little more about the nuances of the work of such familiar household appliances.

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 troubles with water quality 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:

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

Attention! When it was not possible to find the leak, 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.

1. Necessary turn off boiler and turn off the gas.
2. Remove the turbine.
3. With a rag to clear with turbine blades dust and carbon deposits.
4. Inspect Electric Coil fan for blackening. If everything is in order, move on or replace the fan.
5. 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:

1. Turn off the boiler, shut off gas and water.
2. Remove heat exchangerusing an adjustable wrench.
3. Clear it with a brush.
4. Through the pipe pour over into the heat exchanger acid solution... If foam appears, it means there is a lot of scale inside.
5. Pour out solution and repeat procedure.
6. Rinse.
7. 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 problemsthat 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.

Modern gas boilers are quite sophisticated technological equipment. With proper care and proper handling, the gas boiler will serve for a long time without any interruptions. However, even the most expensive and functional equipment has its own resource, after the exhaustion of which all sorts of malfunctions begin to appear.

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 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 manufacturers, heat exchangers should 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 if possible it is best to use a higher quality carbon compound with heat-resistant properties.

Fan RLA97 (Aa10020004) for gas boiler Electrolux

An interturn short circuit can also lead to problems with the fan. Only a specialist can cope with the elimination of this malfunction. Send 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.