The most common problem. the height of the pipe above the roof. The chimney must be higher than 10. 15˚ from the centerline of the slope and ridge of the roof. Often new constructions, high trees affect the air flow and backflow in the pipe and then the rule does not work.
Too close to the chimney supply vent pipes can cause reverse draught. Sometimes during the construction gross mistakes were made in the internal arrangement: the chimney has more than three bends or the bends have an angle of less than 90˚, the horizontal channels have a reverse slope angle.
In these cases, it is enough to increase the outside pipe, the cross-section of the built-up pipe must be the same diameter as the chimney itself. You can install a deflector. A deflector is a fan without an electric motor of special design.
Under the influence of combustion products the internal blades are untwisted and more air rarefaction is created, which increases the draft. Minus. the deflector requires periodic maintenance and can freeze.
Causes of fading
Before looking for the problem and how to solve it, you need to find out the type of boiler installed:
- power-dependent. the design of the device operates solely on electricity;
- energy-independent. its automatics does not interact with electricity.
Once you understand what type of unit the boiler belongs to, you can start looking for the cause of the boiler failure:
- lack of power supply;
- Power supply with fluctuations and spikes;
- Incorrect factory setting data;
- remote control.
These reasons come to mind for everyone who has encountered the problem of flame extinction in the burner. After checking each point, you should begin to think more globally.
You can, of course, immediately call a master, but the fault of the heating outage can be the real trifle, which can be handled by anyone:
- gas-based boiler fails due to a weak gas supply of the central pipe;
- The breakdown can be hidden in some chimney malfunction;
- the cause of the breakdown can be a failure of the device’s automatics;
- weather conditions, strong wind blows out the igniter;
- Unstable operation of the unit’s electronic system, where it will be necessary to check every detail.
To determine the likely problem in the operation of the AOGV system, you need to pay attention to the type of unit:
Each type of equipment has a number of functions, thanks to which the wick ignites and extinguishes, uninterrupted operation of the heating boiler is made.
Open type equipment
This type of boilers is equipped with an automatic valve, which is able to stop and resume the gas supply.
The causes of malfunction in open boilers are many, but each of them is solvable.
- The chimney may lose the draft.
- Reduced gas pressure in the central pipe, due to which the boiler stopped working.
- Lack of necessary amount of air.
- Strong wind can negatively affect the operation of the heater. When there is a draught, the flame breaks off, respectively, the device goes out.
- System failure, for example, failure of the thermocouple sensor.
With a closed chamber
Boiler equipped with a closed combustion chamber is in higher demand. The appearance of the device looks like a miniature boiler room, which is equipped with an additional degree of protection.
It is this protection that stops the gas supply if there is a good reason:
- The flow of the heating medium in the heating system has stopped;
- The air flow has been reduced or stopped altogether;
- A voltage surge occurs in the electrical system;
- A banal power outage.
Electric and gas appliances
Devices that are additionally connected to the mains can also shut down for unknown reasons. The most important thing is to check the electricity supply. In the case of the presence of current in the socket, the fault of the breakdown should be looked for on a larger scale.
The main signs of failure of electric and gas appliances:
- the device does not show signs of life, the indicators are not lit, there is no sound of the unit;
- The indicators are lit, the device display shows that operation is being performed, but the mains ignition does not occur;
- the unit works without errors, but when you ignite the burner immediately goes out.
Blows out the gas boiler in the wind what to do study in detail
Even installed according to all the requirements of the manufacturer, the gas boiler can work with malfunctions, because nature has a great influence on the operating conditions. Blows on the gas boiler, what to do, users often have such a question, since it is the wind and changes in draft causes the largest number of trips of automation equipment.
Blows out the gas boiler: why and how to fix this problem?
Installing the boiler, the owners hope that the equipment will work steadily. However, malfunctions occur even if the unit is installed according to all the rules. Users often ask why the gas boiler blows out and what to do so that the wind does not affect the operation of the equipment so much?
Many owners of private houses notice that in case of a strong wind the automatic system often shuts down the boiler. Occurs due to changes in the draft in the chimney. In bad weather, there may be a back draft, which makes normal operation of the heating unit impossible.
But what to do if the wind regularly blows out the gas boiler? The answer will depend on what type of unit is used in the house. atmospheric or turbocharged.
Why does the gas boiler goes out in the wind
All causes of blowing out of the gas boiler in strong winds, one way or another, connected with the work of automatics, in particular, the pressure valve. The sensor works as follows:
If the draught characteristics are sufficient, opens the gas supply.
There are several reasons for the triggering of the automatics:
Back flow of air into the chimney in a strong gust of wind.
Most of the problems can be prevented by installing the chimney in accordance with current standards and using special equipment to prevent back drafts.
Gas boiler is blowing in the wind what to do
Often the reason for stopping the work of the gas heating boiler is blowing in the wind. Its shutdown in winter is a very unpleasant surprise for the owners. This can lead not only to a drastic decrease in the temperature inside the house, but also damage the entire heating system. Let’s deal with the problem.
If you suddenly turned off the gas boiler, do not panic, and to begin with exclude such a possible cause as a sharp drop in gas pressure in the pipeline. To do this, you can simply turn on the gas stove and look at the flame, its size, check how quickly the water boils. Low gas pressure on the cooktop you will notice immediately. In this case, your boiler is definitely not to blame, call the gas company and find out the cause of the problem. Most likely, it is not just for you, but for all the neighbors.
In addition, check and rule out the possibility of gas leakage. with a soapy solution, which is applied with a sponge or sprayer to the joints of pipes and parts. No smell and bubbles. then the problem is not in the leak.
However, often the reason for turning off the gas boiler is obvious. there is a hurricane wind outside, which just whistles through the pipes. Strong gusts of wind, hitting the chimney, cause a reverse thrust, the valve is triggered, and automatically the flame goes out in the boiler.
To think about preventing the risk of blowing out the boiler should be at the stage of installation of the chimney. It is very desirable to consider the wind rose in your area. Incorrectly located relative to the zone of wind backflow chimney significantly increases the risk of blowing out of the boiler burner. The wrong chimney configuration can also cause this problem.
Deal well with the problem of blowing the boiler deflector installed on the head of the chimney. This is a fairly simple design, which increases the draft in the chimney, protects it from precipitation and blowing. Always think about installing a deflector, or immediately buy a design with such a device.
Important! Gas appliances must be approved by the Service Center. Therefore, before installing a deflector or fluegarki consult a gas engineer
The cause of blowing out of the gas boiler can also be a burned metal chimney pipe. A burnout results in a hole where the air flow enters. there are problems with the chimney. To cope with the situation will only help to replace the pipe. In the case of coaxial chimneys there is no risk of burning, because the hot gas from the boiler goes through the inner tube, cooling the counter cold air flow.
Two more possible causes of blowing out the gas boiler:
Frost formation on the chimney. This often happens with coaxial structures in the frost.10.-15 °C. Hot steam comes out of the chimney, gradually cools down and turns into water droplets, condensate, which freezes, forming icicles and a thick layer of ice. This leads to a breach of the draught, the boiler automatics are triggered, it stops operation. If you have such a problem, do not hurry to knock down the ice build. you can damage the chimney itself. It is best to remove the cap, the upper part of the pipe and bring it into a warm room so that the ice melts naturally. Before removing and cleaning the pipe, the gas supply must be shut off! Helps to avoid the appearance of ice additional insulation chimney;
Poor ventilation in the boiler room can lead to problems in the operation of the atmospheric boiler. Will help arrangement of forced ventilation in the room or a hole with a fine mesh in the bottom of the door of the boiler room.
Manipulations with the chimney will help to cope with boiler blowing. the diameter of its outlet can be reduced or its length can be increased. Excessively large chimney opening can be reduced by installing an additional inner tube. Remember that the vertical chimney must be 50 cm above the roof ridge.
In this case, too long a chimney can cause excessive, strong draft, which will literally tear the flame from the boiler burner.
We strongly advise you in the case of problems with the operation of the gas boiler to call specialists! Only they will be able to pinpoint the exact cause of the unit’s shutdown and fix it.
Changes in gas pressure do not occur very often. In this case, the differences are so small that the cause is unlikely to be. Don’t look for a problem with the equipment straight away. The design of the latest models of gas boilers is quite simple, but reliable.
Most often the following drawbacks are detected:
- Formation of an ice clod that blocks the ventilation duct. It prevents the exchange of air particles that provides combustion. The appearance of ice. a natural phenomenon, because in addition to spent fuel in the pipes penetrates condensate. It’s what’s freezing on the walls.
- Reverse draught, which occurs due to strong and gusty winds, as well as a sharp change of motion. It advances along the entire length of the structure and eventually reaches the boiler. The flame goes out in it.
Ice is an artificial obstacle, and its formation means that the structure was assembled incorrectly. To correct the errors, you must immediately stop operating the furnace and contact a specialist. They will clean the chimney, install a condensate drain (umbrella, visor) or a loop through collector.
Почему задувает котёл и тухнет. 8 причин
Reverse draught is a great danger, in view of attenuation of the burner flame. The system in the boiler equipment of the latest generation is more modern. Automation quickly actuates and stops feeding gas into the furnace. However, the products of combustion first enter the heating unit, thus contaminating the chamber. They will get in on subsequent turns. The cause of this phenomenon is most often insufficient length of the chimney. To remedy the situation, the following steps are necessary:
Blows out and blows out the gas boiler. What can be the problem?
If you have a gas boiler goes out and blows out, then you should examine a number of reasons that can cause this problem, and then take the necessary steps to stabilize and resume normal operation of the boiler as quickly as possible.
We suggest eight main causes of such problems and their solutions.
What to do if the gas boiler blows out in the wind: methods of solving the problem of the causes of boiler back draft
Back draft in the combustion chamber of gas boilers, arising from gusts of wind is a fairly common problem. Gas boiler periodically dies out in strong gusts of wind, which worsens its efficiency, at the expense of frequent switching off reduces the resource, and models with manual ignition have to be constantly kindled.
This problem occurs in floor standing boilers with an open combustion chamber with a vertical chimney, and in boilers with a closed combustion chamber with a coaxial chimney. However, correcting the situation in more than 90% of cases is not difficult.
The scheme of air movement in gas boilers