Repair the gas column with your own hands. Malfunctions of a gas column

Many of us were wondering about the use of a flow-through water heater. When considering the purchase process, for sure, in a special account, everyone had gas columns. These devices, unlike their electrical and storage counterparts, are more convenient and economical to operate. Choosing a gas column for your home, you can save money by reducing the tariff for electricity and gas prices, as well as making your life more comfortable and using warm water when necessary. However, like any device, gas columns have a habit of failing. And from this can not escape. In this article we will try to describe the main breakdowns and understand how to repair the gas column with your own hands.

About how the gas columns work and work

These devices resemble an unremarkable kitchen cabinet. Inside it are built a heat exchanger and two burners (about what the two are for, we'll find out just below) A pair of pipelines is suitable for the hull: one is gas, the other is water.

The process starts after one of the hot water tap opens. The valve that feeds gas to the burner opens. Due to the combustion of the energy carrier, heat is generated, which is transferred through the coolant to water, which is directed to the tap used at that moment. All that remains of the combustion of the energy carrier is taken to the street through the chimney.

Varieties of gas columns

These devices are classified according to the type of ignition on:

• Electronic;
• Manual;
• With a piezo spark.

Hand-held gas columns are the last century. For their use, it is necessary to feed gas to the column and to light the ignitor with the help of matches. To activate the main burner, you must provide the appropriate control signal.

Now there are more practical gas columns that meet the requirements of modern people, accustomed to the fact that all work for them makes automation. The electronic ignition system works as follows. Again, it all starts with the opening of hot water. The system detects a water pressure drop and sends a signal to the gas supply and spark formation. After these actions, the fuse lights up, and then the process is the same as in manual-operated burners. The main burner will enter the case, and the heated water will flow to the connected faucet. The burners are also switched off in automatic mode - after the tap is closed and the pressure is restored.

Gas columns with piezo-spark use a so-called piezoelectric effect for operation, which can be judged by their name. When the device is turned on, a button is pressed, which converts the mechanical action into an electrical discharge. As a result of the discharge, the ignitor will light up, and then the second burner. After the hot water is turned off, the main part comes out of work, but the ignitor burns further. Therefore, when the hot tap is turned on again, everything will work in automatic mode.

Common Faults

Like any other device, this unit requires periodic maintenance and compliance with certain rules. And then it will work for a long time, and the gas column malfunctions will not disturb you. Despite this, breakages are not excluded, for example, due to poor quality of water or energy carrier. In such cases, knowledge of how to repair the gas column with your own hands will be very helpful. Consider what kind of breakdowns are the most frequent and how to deal with them.

Scum on the heat exchanger - what to do?

Not all residents of country houses and urban flats can boast of quality tap water. If you make a rating "Malfunctions of the gas column", then the first place in it will be the contamination of the heat exchanger with scum due to too hard water. Scum is formed when the water is heated above eighty degrees. To combat this phenomenon, one can resort to prevention. To do this, just do not use very hot water. It's not a secret that it will be enough to heat water up to 45 degrees in order to be washed. The same temperature is enough for washing dishes, and given that modern washing facilities cope with their task in cold water, and even less. In order to wash clothes, it will be sufficient to have temperatures of about sixty degrees.

Promotes the appearance of scale and the fact that for convenience many do not disconnect the fuse of the gas column. Because of this, the temperature in the heat exchanger can rise to values higher than the threshold for the formation of scale. Therefore, it is necessary to switch off the fuse if the heater is not needed at the moment, and turn it on when such a need exists. Also experts do not advise to climb into the settings of the automation in case of poor water pressure. To solve this problem, it is recommended to buy an up-pump.

In cases where preventive actions are already irrelevant, since a failure has occurred, in order to perform the repair of Neva's gas columns (or any foreign brands - it is not important), it is necessary to clean the heat exchanger. The first step is to make sure that this is a clog. Symptoms are as follows: insufficient hot water pressure, the unit turns off immediately after switching on, or does not turn on at all.

In order to repair the gas columns "Neva" or foreign analogs, the following tools will be needed:

• A set of carob keys;
• Screwdriver Set;
• hose;
• Gaskets are paranitic;
• Special abrasive "Antinakipin".

First, you need to parse the column. Then, close the water supply to the device, open the nearest hot tap. Next, remove the feed tube from the heat exchanger. From it you need to drain the water, about a liter. Then you should put the phone back on. With the help of a funnel into it and you need to fill in the cleaning solution, preferably slowly and accurately. "Antinakipin" should be left inside the heat exchanger for two hours. There is a small trick: to make the cleaning process more rapid, you need to heat the solution with a fuse.

After a while, you should resume the water supply and check that it is poured out of the hose. If the traces of scum and other extraneous things are visible in the liquid, and then the pressure becomes better - everything went well, no - the action should be repeated.

The gas column radiator flows

It is worth noting that the replacement of the heat exchanger that gave a leak to the serviceable one is not the only option for fixing the columns. If you take into account the fact that it will be very expensive to buy a new radiator (one-third of the cost of the whole device), it will be very useful to know how to repair the gas column with your own hands in this case. The repair will consist in soldering the coil. Due to the fact that the solder melts at higher temperatures, compared to those that occur in the radiator, this repair option is quite reliable. Spare parts for gas columns are very expensive, therefore repair is an excellent alternative to their replacement.

Statistics show that cracks are formed mainly on the pipe located on the outside of the heat exchanger. Before starting the soldering, it is necessary to release the heat exchanger from water. If this is not done, the water, removing heat, will not allow the solder to grasp well. To get rid of water, you must open the hot tap, then remove the cold water supply to the device. After these actions, the main mass of water should drain. What's left can be purged with a compressor.

Now you can proceed directly to soldering. Using nazhdachki need to handle the place of the crack, and then clean and degrease it. Tinning is performed at a temperature of 180 degrees, the soldering iron is best used at least 100 watts. It is recommended to use rosin for soldering, but if it is not available, you can replace it with regular aspirin tablets. The place of soldering should be covered with a uniform layer of solder. It is recommended to increase this layer to two millimeters, and then this defect will never manifest itself. After this, the whole radiator tube should be inspected. In the presence of green impregnations, these places must also be disappeared, since, most likely, they were formed also because of cracks, only smaller ones. If this is not done, they will eventually become larger, because of what again will have to repair the gas column with their own hands.

In cases where cracks are located in inaccessible places, soldering will be impossible. This will require the removal of the heat exchanger, which will require a complete analysis of the gas column. This procedure is very dangerous, therefore the repair of the gas column "Junkers" from Bosch, as well as domestic, is best entrusted to specialists.

Does not ignite the gas column

Most often, the cause of such a breakdown is the lack of traction in the ventilation. This is due to the ingress of foreign matter into the mine or its clogging with soot. It is possible to make sure that there is no traction: if the flame of the lit speech is deflected to the side - the thrust is present, if the flame does not shake - there is no thrust.

There are other reasons for not lighting the gas column. For example, if the elements of the apparatus responsible for generating a spark in automatic ignition systems are not charged, it can also lead to an inoperative state.

There may be insufficient pressure in the water supply system to cause the column to malfunction. If the pressure of cold water is worse, then most likely, the fault lies in the water supply system. If the pressure of the cold water is good, and the hot water is hardly flowing, then it may be necessary to fix the water unit of the unit (repairing the membrane or cleaning the filter).

The filter clogs due to the shutdown of the water supply. It is necessary to remove it and rinse it under the pressure of water. It is more difficult to remove the membrane, but the gas column layout will help. If the membrane surface is deformed, it must be replaced. To do this, you can choose a silicone product that has a longer service life. Shops selling spare parts for gas columns can offer such options.

There are situations when the unit goes dead right after the ignition. The reason for this is poor-quality contact of the thermocouple and the e / m valve. If the thermocouple is in good condition, the gas flow column is suitable for repair (cleaning of the contacts and the automation unit).

Characteristic claps when the unit is turned on

They talk about the following things:

• There is no draft in the ventilation shaft.
• Bad charge of batteries.
• Blockage of the jet.
• Excessive gas supply.

The first thing you need to watch is the flame. It should burn steadily, the color should be blue. Yellowish-red color, as well as a small flame indicate the need to clean the ignitor nozzles .

Improper heating of water

The cause of this problem may be the wrong choice of the power of the installation. To do this, when buying, you need to make sure that the gas column "Bosch" or another company has the necessary characteristics for your home. In addition, there may be clogging of the device. This is confirmed by the presence of soot and uncharacteristic color of the flame. If there is insufficient heating, you can try to adjust the supply of energy. This is done with a special crane.

There is also the opposite situation - the water is too hot. Here, the Bosch gas column does not require repair, since this does not count as a malfunction. All because in summer the water temperature in the water pipe is warmer, and the pressure drops. Many gas columns are not designed for this mode. The characteristics of the gas columns include the optimum water pressure at which the normal operation of the unit is ensured. The solution to this problem is the following: reduce the supply of energy.

Replacement of gaskets

It happens that in the connections of the gas column there is a leak. Connect water pipes in columns using nuts with gaskets. All of them with time become less elastic, as a consequence - their ability to not pass water is lost, hence the leak. The flowing gas column, which began to flow, probably requires replacement of this part. It does not take much time, but if the leak does not stop after repair, you can try using one more additional gasket.

Beware of gas!

The most dangerous malfunction of gas columns is a gas leak, while a characteristic smell is felt. When it occurs, do not take risks and try to fix the device yourself. It is necessary to immediately cut off the gas, ventilate the room and call the gas service. Observing these recommendations, you can not be afraid for your health and your life and your loved ones.

So, we found out how these devices are arranged, examined their main faults and how to eliminate them. This instruction on repairing the gas columns will help you to find out the cause of the failure and to eliminate it in the shortest possible time.