Using a gas boiler for heating in your home is a very good and economical solution. This device is easy to install and also easy to operate. However, like any equipment, the unit tends to become faulty, often it all lies in the damping of the gas burner. To find out the cause of the problem, you need to understand the types of gas boilers and their device. In this article, we will tell you why the gas boiler goes out, we will tell you what to do and how best to solve this problem.
Varieties of gas boilers
These units are divided according to the type of installation:
- outdoor;
- wall.
The first type of gas boilers is more powerful, thus it can heat a large area of the room. They also have a long service life, this was achieved through the manufacture of heating elements from metals such as steel and cast iron. However, these gas boilers require a separate room for installation and better performance.
As for the wall units, they have smaller dimensions, respectively, and the weight is also less, this allows them to be mounted on walls. This type of boilers has a lower power, they also have a significantly reduced service life, and they are more demanding to clean the coolant element, and the type of heated liquid. The advantages of these devices include their small size, which greatly simplifies installation, without requiring a separate room, like floor-standing units.
See also - How to start a gas boiler for the first time
Gas boiler design
Their principle of operation is the same, they are divided only by design, there are several types:
- single-circuit - mainly used for heating small rooms and residential buildings;
- double-circuit - they are also capable of heating rooms, however, in addition to this, they can heat water for domestic or technical purposes.
As for the removal of waste products - gas boilers are equipped with special systems with:
- natural cleaning - in this case, gas boilers are directly connected to chimneys, which are led to the top of the roof. Thus, combustion products are taken by natural draft. The combustion air is taken from the room, but the chimney must be high, at least 500 mm from the ridge of the gas boiler. Otherwise, your boiler will blow out and go out.
- forced cleaning - gas heating units are connected to a coaxial chimney, this design is a "pipe in a pipe", both lead to a closed combustion chamber. Combustion products come out through one pipe, and air enters through the second, which supports combustion.
Let's move on to the circulation method. There are gas boilers dependent and not dependent on electricity. In the first case, there is an electric circulation pump in the system, which creates pressure. Also in such boilers there are many complex machines and sensors, thanks to which the process is regulated.The latter do not require an electrical connection, thus they gain an advantage, and when you do not have electricity, you can still use a gas boiler.
See also - The best manufacturers of gas boilers according to customer reviews
Possible malfunctions and ways to eliminate them
Now let's move on to the breakdowns of these units. Basically, the signs of breakage are as follows:
- Gas boiler does not turn on - in this case, the problems may be as follows:
- malfunctions with the burner ignition system;
- lack of voltage on the gas boiler;
- check the gas valve, it may be closed;
- insufficient gas pressure in the gas boiler chamber;
- check the burner itself, it may be clogged.
As for boiler repairs, it is not recommended to do it yourself (except for minor external repairs), since this unit is dangerous, and in case of violation of any element, it can lead to malfunctions. All repair activities must be carried out by specialists. As, for example, improper cleaning of the nozzles on the burner can lead to the fact that the light will come off and go out, which will lead to fading.
- Gas burner dies out - the causes of this problem may be associated with:
- lack of reverse thrust in the gas chamber;
- malfunctions with the thrust sensor;
- Possible poor contact with the thermocouple;
- if you have an electric boiler, it is possible that voltage drops occur in the network;
- there was a depressurization of the connections on the supply gas pipeline.
Draft problems are mainly found in boilers with an open waste disposal system. Today, all gas boilers are equipped with special draft sensors, which automatically dim the burner if there is a lack of draft. However, if there is a lot of thrust, on the contrary, this is hello to the rapid intake of already worked out gases, due to which flows can tear off the flame from the burner - the automation in this case also closes the gas so that it is not wasted after a flame break.
It is easy to determine the state of draft in a gas boiler, for this, simply bring a match into an open boiler, in cases of normal draft, the flame will burn normally, and it will be slightly directed towards the inner body of the gas boiler. If the thrust is excessive, then the flame on the match will simply go out.
Such problems arise due to a violation of the rules for building a chimney for a boiler, namely, insufficient height above the roof, or, on the contrary, with too high a height. The solution to the problem is quite simple - you need to find out the state of the draft, and if there is a lack of it, reduce the height of the chimney, and, accordingly, vice versa, if there is an excess, increase it. It is also recommended to flush the chimney in order to give the waste products a large outlet area. Depressurization is also common, and can be found with soapy water and patched.
The boiler does not light up if the sensor responsible for measuring the draft is faulty - it cannot be repaired, only a complete replacement of the element is required. It is easy to identify the malfunction, it is necessary to close both terminals on the sensor, and to ignite the boiler, in cases of complete functioning of the unit, replacement is required.
If the thermocouple contacts are bad, the gas burner will immediately extinguish, in this situation you can clean them yourself.
- After switching on, the boiler does not pick up the temperature inside the combustion chamber - any breakdown is specific and has a reason, in this situation they can be as follows:
- there is not enough air in the chamber where the gas is burning;
- incorrect design of the chimney or it is simply dirty;
- failure of the electrical elements of the boiler system;
- if you have a double-circuit boiler, then the water heating system will consume a large amount of electricity.
- The boiler does not respond to shutdown commands - in automatic units, shutdown occurs by itself when the temperature in the room has reached the set value according to the program. The device with which the ambient temperature is determined is called a thermostat, it transmits data to the processor, which is built into the command board.
We told you why the gas boiler goes out and how to fix these problems. However, do not forget that any malfunctions, other than working with the chimney, must also be carried out by a trained specialist with a certificate.
See also:
- Choosing a solid fuel boiler for long burning: rating of the 10 best boilers
- 11 best water heaters for home according to user reviews
- 13 best gas heating boilers according to buyers' opinion
- 17 best electric boilers according to buyers' opinion
- 19 best indirect heating boilers according to customer reviews
