Gas boiler does not start: reasons. What to do if the gas boiler does not work

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After purchasing and installing a new gas unit, inexperienced users may have a question about how to light a gas boiler. Please note that the first start-up should only be carried out by a gas service specialist. He can also give some recommendations on how to turn on and subsequently operate the unit.

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1 Preliminary work
2 The process of igniting a gas boiler
3 Features of ignition of different models of gas boilers
4 Problems when igniting a gas boiler

Localizing the problem of boiler malfunction

With the development of modern low-rise construction and gas networks, the boiler has become a common household appliance in every house or apartment. Basically, after installation, the boiler does not cause users any trouble. Modern boilers operate completely autonomously and require only regular maintenance or inspection. In our opinion, the average operating time of units before the first breakdown is from 4 to 6 years. Some users encounter problems even after 9 years, and some, on the contrary, earlier. In this material I will tell you what can be done if the boiler simply does not turn on, and I will also consider the most common malfunctions of gas boilers. The concept of “does not turn on” can mean completely different problems:

There is no indication (the display is not lit)
The boiler does not light up
The boiler does not operate in any particular mode

Therefore, these different situations should be considered separately in detail. Please note that to eliminate some malfunctions, user intervention is sufficient, but in some cases it is necessary to call a qualified specialist.

Why doesn't the boiler start?

Often problems are shown as an error code on the display. All modern models Vaillant (“Valiant”), Baxi (“Baxi”), Ferroli (“Ferroli”) are equipped with a self-diagnosis system. Each brand has its own codes and their meanings. If the display does not show symbols, then you need to look for the cause of the problem yourself.

Problems with wall and floor units can be caused by external and internal factors.

External ones include:

Insufficient gas pressure in the main;
Chimney problems;
Power surges in the network;
Draft, low temperature in the room/boiler room.

Internal factors include breakdowns of electronics - sensors, wiring, as well as individual components - pump, heat exchanger.

Popular models

The range of Junkers water heaters is represented by a small assortment. There are only two main models available to users, which have 2-4 additional modifications: Junkers WR (standard) and Junkers miniMax (mini). Also, all speakers differ in series: G, P, B, KDP and others. The two most popular configurations of these two models are:

Junkers WR 13P - electric ignition, works great at low water pressure, high power, but leaks are common and very noisy operation;
Junkers miniMAXX WR 15P – attractive, strict appearance, easy and intuitive controls, less noisy than other similar models, but various breakdowns and leaks are common.

Judging by user reviews, problems with German speakers of this brand are not uncommon: they do not want to ignite quickly, can heat water poorly over time, constantly require repairs and regularly leak. Speakers rarely go out - but this problem still occurs.

How to deal with problems

If the boiler goes out and does not light up again, check the quality of ventilation in the room. This is a common cause of problems for atmospheric models “Proterm”, “Navien”, “Ariston”, “Bosch” with an open combustion chamber, because they take combustion air from the room.

Organize high-quality ventilation in the room;
Install ventilation valves on sealed window packages;
Open the window in the boiler room for air flow.

Check the presence of draft in the boiler chamber. To do this, light a match and bring it to the control window or chimney outlet. If there is draft, the flame will deviate to the side. If not present, it will burn evenly. In the latter case, a chimney inspection is required.

This is excess, deficiency or backdraft. All this leads to the fading of the wick and automatic shutdown of the equipment.

Backdraft or blowing out occurs due to weather conditions: strong winds, pressure changes lead to the burner extinguishing. During installation, take into account the requirements for the height of the chimney:

The height of the pipe on a flat roof is at least 50 cm;
With a distance from the roof ridge of 1.5 meters - from 50 cm above the ridge;
At a distance of 1.5–3 meters - level with the ridge.

Compliance with these parameters will help to avoid blowing and backdraft.

Excess air flow occurs with a powerful kitchen hood or ventilation. The solution is to turn off the hood while the boiler is operating.

Lack or absence of traction provokes:

Blockages. Occurs in stationary chimneys. Clear the mine of leaves, debris, and construction debris. Fixed and coaxial pipes can become covered with ice in winter. Along with combustion products, hot steam escapes into the street, condensation forms, which freezes on surfaces. Insulate the chimney.
Damage, burnout of the pipe. Only replacing the chimney will help.

Does the dual-circuit device “AOGV”, “Beretta” or “Vailant” turn off and not turn on? This is possible when the fuel supply is unstable. For the same reason, the burner does not light the first time. First of all, check:

Pipes and joints for gas leaks. To do this, lubricate them with soap foam. If bubbles appear, there is a leak. Then turn off the valves, open the window and call the gas workers.
Counter. If there is a breakdown, the meter readings do not change; noise and crackling are heard. You can’t fix the problem yourself—you need a specialist.

If everything is fine, wait until the gas supply is restored.

Does your equipment not start after a long shutdown? It may be worth using antifreeze as a coolant. It does not freeze when the temperature drops and allows you to safely start the system after a long period of inactivity.

All boilers with a closed combustion chamber - such as Buderus, Wolf, Danko, Lemax - are equipped with fans. They forcibly discharge combustion products into the street. If you hear strong noises when the blades rotate or do not hear operating sounds at all, carry out diagnostics and replace the element if it breaks.

To find other problems, it will be useful to know the structure of the boiler you are going to repair. “Aton”, “Siberia”, “Buderus”, “Ferolli” or another brand may have their own characteristics. But the following sensors and components often break down:

Circulation pump. If it fails, the boiler may make noise and the flame in the burner goes out. In such cases, the equipment will not work for heating and hot water supply. The only solution is to replace the pump.
Igniter. Incorrect pressure adjustment results in flame failure. The protection is triggered and the operation stops. Set the correct fuel supply.
Burner. The appliance has switched off and will not re-ignite. Check the burner nozzles for blockages. Clean them from soot and dust. Also clean the sensor photocell and try ignition again.

Diagnostics and replacement are also carried out in case of breakdown of the thermocouple, pressure and draft sensors.

Does the device not start after turning off? Check the remote control, replace the batteries. Examine the display. If it does not work, diagnose the controller.

Heating equipment that is additionally connected to the network suffers from power surges. If the values are lower or higher than the nominal value, the unit will not work. It is recommended to connect a voltage stabilizer.

It is important to understand that a boiler emergency stop can happen for a variety of reasons. It's good if a code appears on the display. For example, the display of the Proterm model may display error A6. This means that the temperature in the room has dropped and you need to connect an additional heater. So, thanks to symbolic codes, it is easier for the user to detect the problem. In other cases, you will have to check all boiler systems.

It is always easier to prevent a breakdown than to repair it. Therefore, monitor the operation of the boiler and carry out maintenance once a year.

To understand the reasons why a gas boiler does not light up or goes out, it is important to understand the principle of operation of the system. An analysis of the most common practical situations - why the boiler does not turn on or light up, and recommendations for repairs - is presented in the material.

How to light a flame on a gas boiler

When you purchase and install gas equipment, the first question that arises is how to light a gas boiler. The first start-up of a gas boiler is carried out by a specialist, from whom you can get recommendations on the use of the equipment. During subsequent starts, you can also set the required temperature using the coolant heating level control knob.

Read more about the procedure for starting gas equipment in the material: Starting gas into a private house. Primary requirements

At the same time, the circulation pump is connected. Excessive noise indicates stagnant air in the pump. To release it, you need to remove the boiler cover, then unscrew the pump cover. When water appears from under the lid, screw it back on. As soon as the pump starts, automatic ignition occurs and the boiler operates normally.

The feed tap is of great importance for the operation of double-circuit boilers. Due to it, pressure is maintained so that the equipment operates without interruption.

Information about the manufacturer Junkers

The German company produces several lines of water heating devices. The brand has been known since 1895, when Hugo Junkers opened a factory for the production of water heaters. The engineer was able to implement all the innovative solutions of the century before last, for example, in 1968, piezo ignition was introduced into the devices, and a little later, ignition from two elements.

Interesting! The German founder patented more than 200 different inventions, a record at that time.

Since the 19th century, it has been one of the leaders in the production of water heating devices for general purposes. At the end of the last century, the company introduced the first mounted combination boiler on the planet with a power regulator.

The Junkers geyser is one of the achievements in the field of the household industry, in which the company was able to implement all the innovative developments of our time. Today Bosch Thermotechnology is the largest manufacturer of heating and water heating systems.

The principle of operation of a gas burner

It consists of the following: air and fuel are mixed, and the combustion products must go through the entire combustion process.

We can conditionally distinguish three tasks in the operation of this element of the system:

preparing air and fuel for combustion by determining temperature, speed and direction;
mixing these elements;
combustion, that is, oxidation of combustible elements with the help of oxygen, combustion due to the nozzle at the end point of the tube.

The reasons that the burner does not light up must be sought in the principle of its operation.

The burner itself is essentially a metal tube that is hollow inside and has several holes called nozzles. The gas burns in it, heading towards the combustion chamber. The mixture of combustion products is discharged outside. And if the air is collected by natural injection, then the gas is distributed and directed inside thanks to the system of indicated holes.

If the gas boiler does not ignite, it means that the combustion conditions are not met: there is no gas, no air is supplied, and combustion products do not come out. Understanding the cause of problems allows you to eliminate them in a timely manner and restore system operation. When lighting a gas boiler, be careful. This equipment requires special care.

Information about the manufacturer Junkers

Interesting! The German founder patented more than 200 different inventions, a record at that time.

How to start a gas boiler: step-by-step instructions

If the heating system has been idle for a long time, before performing any actions, check its integrity, all threaded connections, taps and valves, and the expansion tank.

If water is used as a coolant, the heating system must be filled at above-zero temperatures to avoid traffic jams. It is also worth remembering that it is not recommended to drain it more often than once a year; untreated and hard water forms scale and settles inside the system, narrowing the cross-section of the circuit. It is better to use boiled or purified and softened water, or buy distillate.

In an open heating system, it is enough to fill the coolant through the expansion tank until it is filled to the proper level. In a closed heating system with a floor-standing boiler, the coolant is poured through a specially designated drain and fill valve. In modern wall-mounted boilers, the fill and make-up tap, as a rule, is already installed from the factory and is located below, between the supply and return (most often it is blue). The exact location is always indicated on the diagrams in the model passport.

Location of the feed tap in wall-mounted gas boilers.

When filling from the water supply, keep in mind that the pressure there is high, from 3-4 bar, so the make-up tap must be opened gradually and not completely. You need to stop filling the water when the pressure on the pressure gauge reaches the operating range, higher to the upper limit. Typically the operating range is 1.3-2 bar, it differs depending on the model, so the exact values are always indicated in the operating instructions.

Air locks lead to uneven heating of radiators; they can form in both new and old heating systems. Modern wall-mounted models are already equipped with an automatic air vent, which is located inside: in the upper part above the heat exchanger or at the circulation pump. For floor-standing models, the air vent is installed as part of the safety group.

In any of the cases, everything happens automatically; the end of air bleeding is indicated by a decrease in pressure in the system (if it drops below the operating level, add coolant).

If automatic air vents are not provided either in the boiler configuration or in the piping, the air is bleed from the radiators using the Mayevsky valve. To do this, you need to prepare a small container, since a small amount of coolant will escape with the air.

This is what Mayevsky's crane looks like.

Place a container under the radiator, use the special wrench from the installation kit (or any other suitable tool) to slightly unscrew the tap until air begins to come out with a characteristic hiss.
Next, the air will begin to escape with the “spitting” of the coolant.
We wait until only a trickle of coolant flows, without air impurities, and close the tap tightly. Depending on the presence of air in the system, the process takes 2-5 minutes. It is recommended to repeat with each radiator.

In properly designed heating systems with natural ventilation, air is released under the influence of the laws of physics: it itself exits through an open expansion tank.

Pressure testing is an optional step, which, first of all, must be carried out for safety reasons: if depressurization of the heating system occurs during the heating season, there will be much more hassle and discomfort. It is carried out using a pressure test pump, the pressure is set to x1.25 of the working pressure, the duration is 8-10 minutes. If a decrease in pressure is noticed during the run, there is a leak.

Flushing is carried out every 4-7 years to remove deposits on the walls of the pipeline, radiators and heat exchanger.

To clean the entire system, hydrodynamic flushing is used at once - running a chemical composition with abrasive particles under high pressure, carried out using a booster. The run pressure should be as high as possible, but not exceed the permissible limit of the most vulnerable element (usually a steel heat exchanger with a limit of 1.5-2 bar). The cost of the equipment is about 35-45 thousand rubles, so everyone usually calls a team of specialists every 5 years.

Piezo ignition works on the principle of ignition by a spark (as in lighters); it is used not only on old-style non-volatile models, but also on modern boiler units. Before starting, make sure the gas valve is open. To start a gas boiler:

Designation of boiler control elements using the example of common Danko models. The controls for non-volatile models from other manufacturers are practically the same.

Turn the mechanical thermostat counterclockwise until it stops.
Press and hold the start button (usually inside the thermostat), then press and release the piezo ignition button to light the igniter (wick) of the gas boiler. It may take several presses of the piezo ignition button to ignite the wick. We hold the start button all this time and then for 30 seconds, until the burner goes out when it is released.
Turn the mechanical thermostat to the desired temperature. If the gas boiler is started in a cold private house in high frosts, the temperature must be increased gradually, over 5-10 minutes, to warm up the chimney and prevent backdraft. When igniting after a short break or in warm weather, this is not necessary; you can immediately set a comfortable temperature level.

The location of elements and time intervals and the process itself may vary slightly depending on the model, configuration and version of the automation. The exact algorithm is always indicated in the operating instructions. If it is lost, try to find an electronic version; today there are electronic copies even for quite old models.

Volatile boilers require connection to the electrical network, are equipped with auto-ignition and multifunctional automation, so starting them is much simpler and comes down to pressing a couple of buttons. Accordingly, their location and order may differ slightly. Let us explain using the example of the most common wall-mounted double-circuit BAXI Eco Four 24f. To turn on the gas boiler:

Connect the boiler to the mains and make sure the gas valve is open.
Press the Start/Stop button ( ) to turn on the boiler and select one of the modes, they are in the sequence Summer>Winter>Heating Only>Off. Accordingly, to work only on heating, you need to press the button 3 times. Summer mode means working only to heat hot water.
Use the “+” and “-” buttons to set the desired heating and hot water temperature values. All the rest of the work is done by automation and auto-ignition.

Once again we would like to remind you that the described instructions are intended for the next start before the heating season or after a short-term shutdown/fading. The first start-up of a new gas boiler must be carried out by a certified specialist who will put the appropriate stamp in the model passport. Without a stamp, the warranty on the boiler will not apply.

Digest - Industrial safety

The readings of thermal expansion benchmarks are recorded in the operational log. Then they begin to fill the boiler with water, having first opened the valves of the air outlet pipes on the drums to release air.

Before kindling, the water level is raised to the lowest permissible level. Before starting kindling, the firebox and flues are ventilated for 5-10 minutes, for which the smoke exhauster is turned on, and if the kindling is carried out using gas or fuel oil, then the fan is also turned on. Kindling is carried out at low heat.

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and a little traction. The gas burners are ignited one at a time using a pilot light. First, the igniter is brought to the burner, and then gas is supplied.

If the torch breaks or if the Fuel (dust, gas) does not ignite, as well as in the event of explosions and explosions in the firebox and flues, the supply of fuel and air to the firebox is immediately stopped, and the kindling device is turned off.

Kindling is resumed only after thorough ventilation of the firebox and flues. You cannot light a torch from hot masonry or ignite fuel with open manholes and peepholes.

Inspection hatches for observing the torch must be covered with glass. During kindling, carefully monitor the water level in the drum and the readings of pressure gauges on the water and steam lines. When lighting the boiler, uneven heating of the drums, collectors and individual pipes is possible, which can lead to the formation of cracks and ruptures in them with the release of a large amount of hot water into the room and a couple. The cause of destruction may be pinching of screen pipes in places where they pass through the furnace lining, the presence of foreign objects between the collectors and platforms that prevent their free movement.

The causes of overvoltages in the metal of boiler drums can be faults and pinching in the movable drum supports.

All these shortcomings are identified and eliminated before the boiler is fired up.

Control over the movement of benchmarks (see.

Safety requirements when working with gas burners when installing a new soft roof or repairing an old rolled weld-on waterproofing material

2.1.

rice. 6-1) during the heating period makes it possible to timely identify areas of pinching or sluggish heating. In order for the heating of all areas and elements of the boiler to be uniform, the torch core is supported in the center of the firebox and the lower points of the collectors are periodically blown.

When working with gas-flame equipment, it is recommended to use safety glasses.

2.2. When lighting a manual gas-flame burner (working gas - propane), you should open the valve 1/4 - 1/2 turn and, after briefly purging the hose, ignite the combustible mixture, after which you can adjust the flame. 2.3. Light the burner with a match or a special lighter; it is prohibited to light the burner from random burning objects.

With the burner lit, do not move outside the workplace, do not climb ladders and scaffolding, and do not make sudden movements.

The burner is extinguished by closing the gas supply valve and then lowering the locking lever.

During breaks in operation, the burner flame must be extinguished and the valves on it must be tightly closed.

During breaks in work (lunch, etc.), the valves on gas cylinders and reducers must be closed. 2.4. If the burner overheats, operation should be stopped, the burner should be extinguished, and cooled to ambient temperature in a container with clean water.

2.5. Gas-flame work must be carried out at a distance of at least 10 m from groups of cylinders (more than 2) intended for gas-flame work; 5 m from individual flammable gas cylinders; 3 m from flammable gas pipelines.

2.6. When igniting a manual liquid burner (working fuel is diesel fuel), first turn on the compressor, supplying a small amount of air to the burner head (adjustment with a valve), then open the fuel supply valve slightly and ignite the resulting fuel mixture at the cut of the head. By successively increasing the flow of fuel and air, a stable flame is established. The compressor can only be moved when it is switched off.

2.7. If a gas leak is detected from the cylinders, work should be stopped immediately. Repairing cylinders or other equipment at a gas-flame work site is not permitted.

2.8. If the reducer or shut-off valve freezes, warm them only with clean hot water. 2.26. Gas cylinders must be located

Possible startup problems

The gas boiler slams when the main burner starts

The most common problem, the cause of which is most often clogging of the igniter (dust, combustion products, etc.). It is recommended to call a specialist to clean it.

The reason may also be that the pilot flame is too low: below the main burner. When using electrode ignition, the electrode may be clogged or faulty. In rare cases, the cause may be excess gas pressure in the line. It is important to understand that slight, barely audible pops are characteristic of most models of gas boilers that do not have a sound insulation layer.

Only the wick burns and cannot light the main burner.

The reason may be the same clogging of the igniter or its incorrect installation, when the flame simply does not reach the main burner. Clean the pilot nozzle (it is advisable to entrust this to a specialist) and check the operation: its flame should reach the main burner and simultaneously “wash” the thermocouple. Sometimes the reason lies in a malfunction of the thermocouple, which does not open the gas supply.

Features of column selection

The main difference between different models of geysers is the method of ignition, whether it is a product from junkers, bosch, Neva or Lux. Today it is very rare to find a device that is lit with matches, so this option is not even considered.

The most popular speakers today are units with piezo ignition. In them, you just need to press a button located on the device panel. In addition, such units provide the ability to set the desired temperature of the supplied water.

Dispensers with electric ignition are the most expensive option, which allows you to significantly save gas. The device is turned on automatically by a flow of water. Purchasing such products allows you to save on energy costs and get heated water with maximum convenience, which justifies the high cost of the water heater. Modern geysers, which are offered by well-known brands, as a rule, have three-level protection:

From the flame dying out.
Lack of draft in the pipe.
The occurrence of such a process as reverse thrust.

Why the gas boiler does not turn on, what to do

Over the years of uninterrupted operation of gas heating equipment, you have probably become accustomed to warmth and comfort. But suddenly the boiler stopped turning on, the burner did not light, and meanwhile the room quickly cooled down. We have to look for the reasons for the failure in order to restore the operation of the equipment. Our recommendations will help you find the problem and fix it on your own.

Problems with wall and floor units can be caused by external and internal factors.

External ones include:

Insufficient gas pressure in the main;
Chimney problems;
Power surges in the network;
Draft, low temperature in the room/boiler room.

Internal factors include breakdowns of electronics - sensors, wiring, as well as individual components - pump, heat exchanger

What to do:

Organize high-quality ventilation in the room;
Install ventilation valves on sealed window packages;
Open the window in the boiler room for air flow.

This is excess, deficiency or backdraft. All this leads to the fading of the wick and automatic shutdown of the equipment.

The height of the pipe on a flat roof is at least 50 cm;
With a distance from the roof ridge of 1.5 meters - from 50 cm above the ridge;
At a distance of 1.5–3 meters - level with the skate. Compliance with these parameters will help to avoid blowing and backdraft.

Excess air flow occurs with a powerful kitchen hood or ventilation. The solution is to turn off the hood while the boiler is operating.

Lack or absence of traction provokes:

Blockages. Occurs in stationary chimneys. Clear the mine of leaves, debris, and construction debris. Fixed and coaxial pipes can become covered with ice in winter. Along with combustion products, hot steam escapes into the street, condensation forms, which freezes on surfaces. Insulate the chimney.
Damage, burnout of the pipe. Only replacing the chimney will help.

Pipes and joints for gas leaks. To do this, lubricate them with soap foam. If bubbles appear, there is a leak. Then turn off the valves, open the window and call the gas workers.
Counter. If there is a breakdown, the meter readings do not change; noise and crackling are heard. You can’t fix the problem yourself—you need a specialist.

If everything is fine, wait until the gas supply is restored.

To find other problems, it will be useful to know the structure of the boiler you are going to repair. Aton, Siberia, Buderus, Ferolli or another brand may have their own characteristics. But the following sensors and components often break down:

Circulation pump. If it fails, the boiler may make noise and the flame in the burner goes out. In such cases, the equipment will not work for heating and hot water supply. The only solution is to replace the pump.
Igniter. Incorrect pressure adjustment results in flame failure. The protection is triggered and the operation stops. Set the correct fuel supply.
Burner. The appliance has switched off and will not re-ignite. Check the burner nozzles for blockages. Clean them from soot and dust. Also clean the sensor photocell and try ignition again.

Diagnostics and replacement are also carried out in case of breakdown of the thermocouple, pressure and draft sensors.

Does the device not start after turning off? Check the remote control, replace the batteries. Examine the display. If it does not work, diagnose the controller.

Great Encyclopedia of Oil and Gas

Page 3 Switching devices must be provided on branches to devices. To ignite gas burners and monitor their operation, inspection hatches are installed in the combustion doors or front stoves. If there is no draft, it is necessary to warm up the chimney, for which the brick wall at its base is dismantled and a fire is laid on a sheet of steel (baking sheet).

Before igniting the gas burners, the baking sheet with the remaining coals and ash is removed from the chimney, filled with water, and the hole in the wall is filled with bricks.

These works are carried out under the direction of the person in charge of the boiler room.

Explosions and pops in the combustion chamber and gas ducts of the boiler unit are a consequence of gas contamination of the firebox or its unsatisfactory ventilation.

Most often, explosions occur when gas burners are ignited due to violation of safety rules and current instructions by operating personnel. It should be remembered that in all cases, if the burner does not ignite, re-igniting it is permissible only after thorough ventilation of the combustion chamber and boiler flues.

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Ignition of gas fuel units is carried out after checking the condition of the explosion safety valves.

On industrial furnaces that do not have explosion valves, when igniting gas burners, open the loading and tilting doors or remove their latches.

The main feature that distinguishes the Promenergo-gaz igniter from other electric ignition devices is the refusal to use a spark plug or a pair of electrodes operating from high-voltage transformers, cars or motorized reels. For ignition, an electrical device for igniting the EUR (Fig. 52), developed on the basis of commercially produced electric igniters (for igniting household gas burners), is used, designed to operate at a voltage of 220 V.

It is located outside the boiler outside the zone of high temperatures and the main flow of the gas-air mixture moving through the ignition burner mixer. If boilers operating on different types

Typical causes of heating boiler breakdowns

The main reason is the destruction of electro-automatic devices, including the “safety unit” and the control unit. Flame, draft and temperature are controlled by bimetallic sensors. If the integrity of the protective fuses or the rules of use are violated, the servomotor will block gas access to the boiler and an error will appear on the information panel. To resume operation, use a multimeter to detect a break in the circuit or a burnt-out temperature sensor.

Low pressure in the expansion tank is the second reason. For correct operation, a pressure of 0.8-1 bar is required. At 0.7 bar the condensing boiler will not turn on. To increase it, remove the water from the boiler and pump up the air with a bicycle pump. The flexible hose connects to a built-in nipple, the pressure is controlled by a mechanical pressure gauge.

The electronic board of the boiler is faulty. An incorrectly selected voltage stabilizer, lack of grounding in the socket and lack of power supply protection unit increase the risk of board burnout. It is impossible to repair the electronics yourself; dismantling and diagnostics by a master electronics engineer will be required. A burnt-out circuit is difficult to restore after moisture has entered; you should order and install a new circuit board according to the model of the electric boiler.

The spark clicks and the burner does not start - the ignition electrode or the boiler ionization sensor is faulty. If the electro-automatic ignition constantly clicks, and upon completion of the start-up the red LED flashes (go into emergency mode), you should inspect the spark plug and high-voltage wires for cracks. If the insulation is broken and the spark strikes away from the main burner, the ceramic spark plug must be replaced.

Insufficient water pressure is reason number five. If the pressure in the heating system drops below 0.5 bar, the boiler will turn off. To resume operation, the system must be recharged with water. Open the feed tap until the pressure stabilizes. For control, a pressure gauge is installed on the front panel. If the fall continues, invite our technician to your home to check the tightness of the pipe welds and threaded connections of the batteries.

DHW or hot water supply does not turn on - the three-way valve of the boiler is faulty. The electric valve is dismantled, disassembled and washed from rust. Then they check the power button, visually it sticks in one position. After assembly, apply voltage to the motor to check the rod. If after repair the boiler does not start, the 3-way valve must be replaced.

Lack of annual preventive surveillance is the seventh reason. We offer qualified cleaning assistance from experienced craftsmen. Write in the chat window or submit a request by phone. An engineer will remotely diagnose a defective device and advise the owner on the cost of services. We will draw up a defective work report and provide a guarantee for equipment repairs for up to 1 year.

Popular models

Junkers WR 13P - electric ignition, works great at low water pressure, high power, but leaks are common and very noisy operation;
Junkers miniMAXX WR 15P – attractive, strict appearance, easy and intuitive controls, less noisy than other similar models, but various breakdowns and leaks are common.

Why does a gas boiler go out? Causes and solutions

Today, gas boilers are used everywhere, especially in winter. They act as the main part of an autonomous heating system. It happens that the boiler refuses to work correctly, for example, the flame may go out. When a consumer has a question about why a gas boiler goes out, it is necessary to analyze whether the device is working differently. Therefore, wind noise may be heard. It is important to pay attention to the display, which may show an emergency sign. In this situation, diagnostics should be performed to identify the causes that led to the problem. Otherwise, the temperature in the home may drop significantly, as a result, the system will defrost, which will then become unusable.

Is it legal to turn off heating in winter for scheduled work?

Debt to the supplier. In other words, power cuts for non-payment. This reason worries consumers the most, since there are many nuances with turning off debtors’ electricity.

The Investigative Committee of the Russian Federation knows of several dozen cases where, under the guise of employees of a management company, fraudsters tried to “strip” money from citizens. One of the cases occurred in Moscow, when two men went to apartments in residential buildings and informed citizens about their debt. If the residents themselves were sure that they did not have any debts, they showed the receipts, after which the “employees of the management company” apologized and referred to the fact that the payment apparently had not yet reached them. For the rest, who doubted the existence of a debt trap, the men offered to pay on the spot or they would immediately turn off the power.

Dear readers! Our articles talk about typical ways to resolve legal issues, but each case is unique.

In this article we will try to answer these questions. This article will also discuss the reasons for power outages, rules for power outages, legal or illegal power outages in various situations, the procedure for turning off electricity for debts and many other issues.

Exceptions to this rule are established by the above laws and government regulations. All other cases of turning off electricity, except those given in the listed documents, are illegal.

The electricity went out, the boiler automation stopped working, the fuel pump stopped circulation. In this case, the liquid in the heat exchanger continues to be heated by the remaining fuel in the burner and the temperature of the heat exchanger itself. Boiling of the liquid causes damage to the heat exchanger itself or the heating pipes.

Today it is impossible to imagine our life without electricity, but this remains only loud words until the light in the apartment goes out at the most inopportune moment. To prepare for power outages, you need to know why they happen and what to do in such situations.

Useful tips

To start the boiler, it is necessary to supply power and set the heating regulator to the required operating position. The presence of a weak hum indicates that the circulation pump has started working. Using a screwdriver, lightly unscrew the cover on the detected part. But this must be done before the water begins to flow. If liquid begins to seep out, screw the cap back into place. Such actions are performed several times and after this the air pockets will be completely removed from the system. The gurgling sounds will also disappear and the pump will run quietly.