Reasons for a drop in pressure in a gas boiler

Content:

General information
Causes of the problem
Eliminating the problem

In order to heat their country houses or premises with a large area, people purchase double-circuit gas boilers... What are the main advantages of these boilers? The advantage is that the natural gas used by the devices is economically readily available. In our country, it is now difficult to imagine even the smallest town without a gas pipeline. Although there is a problem with this in villages, no one forbids filling a cylinder with natural gas and heating the living space with it. Also, the advantage of double-circuit boilers is that there is no need to heat water in the house, plus setting the required temperature in the room, the boiler itself will maintain it, which in itself saves you energy and money, since there is no need to install boilers and columns. Nevertheless, like any technique, a gas boiler can break down or become unusable. Most often this is expressed in a drop in pressure. How and why the pressure in the gas boiler drops, we will tell in this article.

General information

modern gas heating boilers

In most modern gas heating boilers, when the pressure in the system drops, it ceases to function, that is, it turns off. At the same time, there is a threat of failure of the heating system and equipment itself. In order to find out the reason why the pressure in the boiler drops, it is necessary to know its operating value. Typically these are static, dynamic and maximum working pressure. In our case, in order for the system to function normally without malfunctions, this is the dynamic working pressure. When installing and connecting a gas double-circuit boiler to the system, it is necessary to study the instructions and instructions for its correct operation. For each device and the system assigned to it, there is its own pressure, as well as a position in which it is indicated in which cases it can exceed or be less than the permissible working pressure. The pressure in the heating system piping is measured in atmospheres or ATM for short. Typically, the minimum pressure is possible during the initial injection of the heat carrier into the system. This is due to the fact that after the system heats up, the pressure also rises to an acceptable level.

All double-circuit gas boilers have a complex design, therefore, if one of its constituent parts fails, a malfunction occurs. Therefore, self-repair of the equipment is not recommended. If a malfunction of the system is found, it is required to call a specialist who will perform the necessary maintenance efficiently and without difficulty.

Causes of the problem

If you find malfunctions and malfunctions in the operation of the gas heating boiler, you must immediately start looking for the cause. In most cases, a breakdown occurs for a number of reasons, and without special equipment it cannot be detected:

there was a water leak from the system;
equipment downtime in the absence of electricity;
malfunction of the heater tank;
this boiler is not suitable for your system.

Prevention of air congestion

If there is a reduced pressure in the water supply system, then it does not enter the reservoir. If the gas pressure is low, the device turns off, while giving a certain signal. In order to avoid such equipment problems, it is necessary to carry out diagnostics and maintenance as often as possible to prevent the cause of the malfunction. Also, low pressure can occur due to air locks. This is because:

the water was originally pumped incorrectly;
air is not pumped out from the coolant;
the heating system is poorly sealed;
valves are clogged.

The first sign of congestion in the system is the occurrence of noise and vibration. In this case, all connections can be loosened by these vibrations, which leads to leaks, and naturally a decrease in pressure. Also, air is a poor conductor of heat, and therefore the pipes may not warm up to the desired temperature, which will cause the equipment to wear out, and you will feel a blow to your wallet.

Eliminating the problem

How can you fix this problem? First of all, do not panic and take up repairs if you do not have sufficient experience and knowledge in this area. Although in some cases, intervention is still necessary.

If water or gas leaks are detected, first you need to close the supply valve and take up the place where the malfunction was detected. Further, depending on the complexity of the system, it is necessary to replace the area where the problem is noticed, while disconnecting the outputs to the radiators and the boiler. This type of work is done by people with special equipment for this.

After correcting the leak, the system is pumped in a new way and the pressure and serviceability of the devices are checked. This process can take quite a long time, it depends on the size of your system as a whole.

We hope that this article helped you understand the question of why the pressure in the gas boiler drops.

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