Why the geyser goes out: reasons and solutions

We are already accustomed to frequent breakdowns of washing machines, microwaves, dishwashers, air conditioners, vacuum cleaners, and refrigerators. But relatively simple and well-designed technical products rarely fail. Therefore, the situation when a gas water heater lights up and goes out will be unexpected for many users, isn’t it? This type of equipment falls into the category of reliable and durable devices.

But should you worry and call a specialist? In this article we will talk about the reasons for such a breakdown, look at common and rare situations. We will figure out how to independently adjust the operation of the heater and when it is better not to do this, but to immediately contact specialists. We will also provide recommendations on how to prevent malfunctions from occurring.

Typical problems

Let's look at why the gas water heater goes out.
Attenuation can be caused by a number of reasons. A sensor may turn on and detect a gas leak. There may be problems with the operation of the chimney. A clogged igniter will also often cause damping problems. Sometimes the automation fails. Often the problem of attenuation is also related to the quality of the fuel. Some gas facilities do not supply pure gas, but diluted gas. Such low-quality fuel is easily identified by the orange color of the flame. If serious automatic protection systems are installed in the column, they will turn off the system

It is also worth paying attention to gas leaks. Even minor leaks are the reason why these units fail

Repairing geysers at home can help. But you should only turn to professionals - gas is not something to joke about.

Does water pressure affect the performance of the column?

The reason why the equipment does not ignite may be low water pressure in the supply water supply. This is easy to check; you just need to open the cold water tap at the sink. If you see that the pressure is weak, then this is the reason. But if the pressure is excellent, then the problem of the malfunction lies in the water unit of the gas device itself. Most likely, the filters are clogged or the special membrane is deformed. In some cases, the hot water supply tap becomes clogged and becomes covered with scale from the inside.

In very rare cases, the cause of low pressure is a deep cleaning filter, which is installed additionally. How to fix the problem? If the cold water supply pressure is very weak in the general water supply system, you need to call the utility services to find out why this is happening. If the column does not light up due to the fact that the filters are clogged, then they should be removed and washed using special means.

If the filters are heavily soiled, they need to be replaced, as cleaning them is no longer useful. If the hot water pipes are clogged, you need to call a technician who can clean them; you do not need to do this work yourself. If the membrane is deformed, there is no need to try to straighten it; you need to purchase a new one and install it. If the column becomes clogged with combustion products and soot, turn it off, then remove the casing and clean its components from traces of soot.

The column refuses to light up when turned on or goes out immediately, due to the fact that the supply of cold or hot water is not adjusted. In this case, there is no need to try to dilute the hot water by increasing the flow of cold water, as this will lead to a gradual attenuation of the flame and the column turning off. Such incorrect actions lead to a reduction in the service life of the device. It is also necessary to correctly adjust all the taps during installation; if you cannot do this yourself, then it is better to call a specialist.

The column does not turn on

If the gas water heater does not turn on, you do not always need to call the experts. There are a number of malfunctions in the gas water heater that the user can repair independently.

Insufficient pressure

The automatic system blocks the gas supply in case of insufficient water pressure. You can estimate the pressure by simply opening the water taps. If it is small or absent altogether, it means that an emergency shutdown in the gas water heater is not due to a breakdown of the device.

In the case of normal pressure in the tap, it is worth looking for reasons in the water heating system. As a rule, a decrease in pressure is a consequence of filter contamination or membrane damage.

During the connection process, some models are equipped with special filters for coarse cleaning, which, when clogged, also significantly affect the strength of the liquid flow.

Coarse filter

To correct the sources of failure due to which the wick of the geyser goes out, the owner will have to:

clean or change the filtration system;
install a new membrane partition for the water unit;
clean the pipeline.

Faulty ignition system

Depending on the models, there are three types of ignition: electric ignition (in modern versions), an igniter, which has a small constant flame, and a hydraulic turbine - from pressure.

The electric ignition runs on built-in batteries. According to manufacturers, they last for about a year. But as practice shows, the service life of such batteries is shorter. For example, in the Bosch gas water heater models W 10 KB or WR 10-2 B, there is an LED on the front panel that indicates the status of the batteries. The Neva Lux range of gas water heaters is also equipped with this type of ignition. If necessary, old batteries are replaced with new ones.

In the case of a hydroturbine type of ignition, for example, as in the Bosch WRD 13-2 G or WRD 10-2 G, a malfunction may occur due to the lack of water pressure on which it is based.

The geyser goes out when switching to shower

Does the heater keep turning off when switching to shower? What's happened:

clean the chimney; replace ignition batteries; remove scale and soot from instantaneous water heater components; Ensuring good air ventilation in the room is important not only for the normal functioning of the device, but also for the safety of people.

These are the most common problems that cause the gas water heater to turn off and go out. As you can see, in most cases the owner of the device can eliminate them on his own. If repairs are unsuccessful, or maintenance requires special equipment or knowledge, you should call a qualified specialist.

Main burner extinction

If the main burner accidentally goes out, the flame sensor will trigger, and the gas supply will be blocked. This happens under the following circumstances:

There is a strong draft in the room. It causes a phenomenon called “flame lift-off”. Therefore, in windy weather, windows should not be opened wide open.
The burner was blown out by a strong gust of wind, which caused the air in the chimney to move in the opposite direction.

This happens very rarely, the column just needs to be started again.

Gas pressure

If the gas water heater does not light up when you turn on the water, the reason for this situation may be problems with gas pressure or a complete lack of gas in the system.

In this situation, usually the water pressure is normal, and the piezoelectric element gives a spark. The first thing you need to do is check the presence of gas in the gas pipeline; to do this, you need to try turning on the gas stove. If the stove does not turn on either manually or automatically, and the characteristic hiss of flowing gas is inaudible from the burner, then with a high probability it can be said that there is no gas in the gas pipeline.

The option when gas does not flow in the gas column while there is normal gas flow to other devices and when there is a spark on the piezoelectric element indicates a malfunction of the gas equipment or a clogged gas filter. When the gas water heater does not ignite when the water is turned on and the ignition system is activated, it is necessary to check the condition of the gas filter installed in front of the device.

The fact is that the composition of natural gas, the presence of impurities and gas condensate can clog the gas purification filter. Because of this, the gas pressure decreases, the pilot light does not light, or the gas safety valve turns off. One of the symptoms of filter contamination can be cases when the device does not light up immediately, or if it does turn on, it starts working intermittently at first, and then after a few minutes it reaches the desired mode.

What to do if the gas water heater does not light up due to low gas pressure or a clogged filter? First of all, you need to turn off the gas supply valve and open the vents for ventilation. Next, you need to inform the gas service about the problem and if this is not a centralized gas shutdown, then call a gas service technician.

The main thing in this case is not to try to do the repairs yourself and wait for the specialists to arrive.

Overheat

Most often, overheating occurs for the following reasons:

The user dilutes hot water with cold. Due to the addition of cold water, the consumption of hot water is reduced, therefore, the heat extraction is reduced and the water in the heat exchanger overheats. Remember: you can regulate the temperature of hot water only by changing its pressure or using the regulator on the column.
The heat exchanger is clogged with scale somewhere. This also leads to a decrease in water consumption with subsequent overheating. You can guess what happened by the clearly weakened pressure of hot water, despite the fact that cold water flows properly. To prevent such troubles, the heat exchanger must be periodically washed with special anti-scale compounds.

If the mesh filter (dirt filter) installed on the water supply in front of the column is clogged, the flow rate in this case will drop with all the ensuing consequences.

Design features of gas devices

Some gas stoves of certain European brands are noisy by definition. This is due to their design features and the introduction of technologies aimed at saving resources. These technologies allow you to save gas.

To maximize gas consumption, this stove uses the turbo effect. Some modern burners have two or three rows of perforations (unlike older devices), which results in faster heating. But this can also cause additional background noise.

Those. The combustion intensity increases, but due to all the innovations, the burners begin to make a lot of noise. In addition, on new stoves, the burners suck in air directly under the flame, which is why characteristic sounds are heard (whistles, hissing, tapping, etc.).

On old tiles, this process took place inside the burners, so it was barely audible. If the noise is too loud, you can try to reduce it by increasing or decreasing the gas.

When purchasing modern gas stoves, you need to be prepared for the fact that it will not be possible to completely get rid of the noise of the burners.

Also, the appearance of background noise when a gas stove is operating may be associated with the installation of inappropriate parts. A set of new plates often contains additional elements that can be mistaken for spare parts, but they are not.

In most cases, such parts are designed for different gas pressures. But only an employee of the GorGaz department, with whom the owner of the residential property has entered into an agreement for the maintenance of gas units and the supply of blue fuel, should replace parts of the gas stove with new suitable elements.

If an ordinary gas stove was moved from an apartment with main gas and installed in a country house, connected to a cylinder, and it began to make noise during operation, then in most cases this is due to unsuitable jets.

The jets are responsible for supplying gas in the required volume at a certain pressure. The fact is that the gas in the main pipes and cylinders has a different composition, therefore the nozzles differ in structure and size.

What if the equipment is still noisy?

If, after these manipulations, the gas water heater still ignites with a bang when you turn on the water, then it is better to stop further independent research. In such situations, you will have to seek help from qualified specialists.

They will carry out competent diagnostics of the equipment, will be able to clearly determine what is causing the cotton and, based on the data obtained, will be able to provide you with options for solving the problem.

In certain cases, independent repair is impossible, then cooperation with qualified specialists will be a rational solution.

Principle of operation

This wall-mounted water heater does not have a storage tank for storing and heating water. The device is compact in size. The water temperature rises instantly as it passes through the heat exchanger. The main advantage is the provision of warm water to several water intake points simultaneously. The energy source of such water heating systems is natural or bottled gas. This is precisely what explains their popularity of installation in those houses where installation of gas equipment is possible.

Gas is cheaper than electricity, and although the cost of such units is several times more expensive, they pay for themselves during operation. In turn, the quality of these raw materials must be at the proper level, otherwise the service life of the equipment will not be long. In addition, constant clogging of the filtration system due to the poor quality of the gas mixture will lead to the device constantly turning off.

Read more about the design and operating principle of a gas water heater.

What other reasons are there for extinction?

Failure of the gas water heater can also be caused by these elements.

Outdated membrane

The polymer material from which the membranes are made has sufficient elasticity, but after many years of use it disappears and the element becomes rigid, and it is possible that cracks or lime deposits may appear in it. Such defects will not allow the gas water heater to work regardless of how the tap is opened. Therefore, it is worth removing and inspecting the membrane: if its condition causes concern, a replacement for this element should be found as soon as possible.

Ignition system and piezo element

In devices that do not have an igniter, its functions are performed by electronic ignition, where the spark is generated by batteries. Perhaps the fault lies with them, since they are not always able to work for a whole year. In other geysers, a piezoelectric element driven by a water turbine is responsible for producing a spark. Such an ignition system will not help if the water pressure is low.

A regular igniter is also at risk of clogging; this can be easily determined by the yellow color of the flame. If the burner ignites with a loud bang, this is your case. After cleaning the element, everything returns to normal.

The shower turns on - the speaker goes off

If the water heater only turns off when the shower is turned on, then it is entirely its fault. The reasons may be:

The mesh filter installed in the shower head is clogged.
When the watering can becomes clogged, the water pressure decreases. You can try to unscrew it. If the column starts working, the reason has been found.
The inner rubber pipe of the hose has become twisted, blocking the flow of water.

Reasons for column attenuation after ignition

When identifying the cause of a malfunction, it is important to pay attention to two points: how the igniter goes out (are any extraneous sounds heard); this happens immediately after ignition or already during the combustion process.

Reason #1 - failure of the flame ionization sensor

If the device turns on and goes out, the ionization sensor is 70% to blame.

This element is constantly in contact with the flame. The ions produced during the combustion process are attracted to the sensor and produce a current. If there are enough ions, the device works. If there are few of them, the column does not function.

The ionization sensor is a thermocouple that is heated by a flame. It is also called a gas sensor because it prevents the device from leaking when the burner is turned off

Signs of malfunction:

the burner went out 3-5 seconds after ignition;
when restarted, the device operates longer;
You just need to start the device several times and it is already functioning normally;
problems appear only after a long break.

It is necessary to inspect the wiring that runs from the part to the control board. Why do we check all contacts? Then unscrew the holding screws and place the heating electrode at the hottest point of the flame.

This technique can extend the life of the sensor by another year. If everything is in order with the contacts and connections, the element needs to be replaced.

Reason #2 - the membrane of the water unit is worn out

A polymer part must have sufficient elasticity. Over time, this property is lost - the element becomes hard, cracks, and becomes overgrown with scale.

A water block or “frog” is a fairly simple device. The cover is held together with screws, by unscrewing which you can get to the membrane

If the element becomes unusable, the heater will go out. It is necessary to inspect and replace the membrane, if necessary, with a more durable silicone one.

Reason #3 - the wick is clogged with dust

In models with an igniter, this part often becomes clogged. The flame becomes weak and a yellow tint appears. But a change in the color of the flame may also indicate a lack of air in the gas-air mixture.

The result is that the device is either completely unable to ignite the burner, or performs its function after a large volume of fuel has been supplied. In the latter case, a characteristic bang is heard.

To clean the element you will need two screwdrivers (Phillips, slotted) and an adjustable wrench.

The algorithm is as follows:

We remove the case - pull out the adjustment knobs, unscrew the bolts in the corners from the bottom, lift and remove the cover.
We unscrew the draft sensor tube and the one that supplies fuel to the wick.
We unscrew the screws and disassemble the structure.
We clean the nozzle, blow out the tee, and assemble it.

There may also be a blockage in the draft sensor, which causes the igniter to smoke. After removing dust and dirt, the pilot light should burn with a stable blue flame.

After cleaning, the device may make a slight noise. The sound is produced by air that is sucked in through the slots in the wick guide housing. There is no danger, but the noise can be eliminated if you slightly tighten the wick with screws

If desired, all parts of the structure can be washed. But don't forget to dry them well before assembling.

Not enough charge

When you open the water, you observe a normal flow, when you turn it on, there is a characteristic click, a spark is formed and everything is generally visually good. But there is one noticeable point: the burner itself in the gas water heater does not ignite. If you look through the window, there is no flame. This is the reason why there is no hot water. The owner does not have hot water, which causes a lot of inconvenience. This reason must be eliminated as soon as possible.

The reason for the malfunction and lack of hot water lies in a completely simple phenomenon. When the batteries stop working, the speaker stops functioning. It does not heat up and therefore the hot water supply stops.

The battery charge in the final stages is only enough to produce a spark. Therefore, visually you observe a spark, and there is also a noticeable click. But the battery energy is not enough to ignite the burner itself.

Replacing the batteries yourself is not difficult. To do this, you need to open the box with the batteries and take them out. Next, you should replace it with new, high-quality, powerful batteries.

More about batteries

Polarity in batteries matters. If you insert batteries without taking into account their polarity, the column will not light up. Batteries can sometimes get stuck in the pack, so keep an eye on them.

Replacement with new functioning batteries is carried out if two main criteria are met:

The polarity of the batteries must be taken into account;
The box intended for batteries must be closed until it clicks.

The batteries used in geysers must be standard D (in other words, barrel batteries). Salt options are not suitable because they have the ability to quickly fail. In most cases, alkaline batteries are used for geysers. They are otherwise called alkaline batteries.

There are often cases when a person purchases batteries, but they do not light the column. Here, too, several questions arise as to why even new batteries cannot cope with their functions. At this stage, the owner may also become confused and look for a completely different reason. In order not to find yourself in such an unpleasant situation, you need to wisely choose batteries for the operation of the gas water heater. There are a few tips to keep in mind...

Tips for choosing batteries

It is not advisable to choose too cheap ones. In this case, it is recommended to choose more expensive batteries (normal ones cost about 200 rubles). If you buy cheap ones, they most likely will not work properly, which means that in the future you will need to overpay

Therefore, initially purchase good quality expensive batteries; Pay attention to the expiration date of the batteries; As for brands, Duracell and Energizer brands are preferred. The battery must be alkaline or lithium

It will be more informative to use a specific multimeter tester that accurately determines the charge. Anyone can use such a tester; it won’t be difficult. This method is convenient and practical to use, and you can purchase a battery tester at any store.

Troubleshooting new equipment

New equipment may also experience various problems. Most often they manifest themselves in the operation of the flow sensor, in the operation of the candle, or in the power system. Let's take a closer look at these problems.

Column microswitch failure

Often the problem with a loud bang during ignition is the insufficient discharge of batteries, which provokes the inability to instantly ignite the gas-air mixture.

The power supply is connected to the control unit via special microswitches, which are responsible for generating a signal to activate the ignition when the DHW tap is opened. If the signal arrives at the wrong time, this causes the problem. This malfunction occurs most often due to oxidized contacts. The microswitch cannot be repaired; it will need to be replaced.

If the microswitch breaks down, repairs cannot be carried out, since this system will have to be completely replaced

Flow sensor malfunction

Often the problem with popping is the flow sensor. It is located in the input circuit. A signal is sent to the control unit controller indicating the presence of liquid in the pipe. The data instantly activates the ignition system. Intensive use of this element creates an increased risk of breakdowns. For example, contact groups can be oxidized.

Such sensors are most often manufactured in a non-separable design, therefore, if a problem occurs, they cannot be repaired and must be replaced.

Working candle offset

The problem may be with the spark plug. After applying voltage, it provokes the formation of an electric spark. Modern candles are made in such a way that they can last for a long time. Element failures are rare, but they do happen.

The most common occurrence is that the ignition device is displaced relative to its nominal position. It can occur as a result of repeated heating and cooling. Such processes are associated with changes in the dimensions of individual structural elements. As a result of adjusting the position of the spark plug, the spark parameters become normal, and extraneous noise completely disappears.

Incorrect operation of the ignition retarder

A rare breakdown is considered to be incorrect operation of the ignition retarder. When disassembling the column, you need to remove the water regulator. On its cover there is a hole in the bypass channel, in this hole the ball is located. The adjusting screw determines the position of the ball.

If, when shaking the lid, you hear the sound of a moving ball, then you should not manipulate this part further. If there is no knocking, then you can move the ball using a thin copper or aluminum wire through the passage channel hole, which is located in the regulator cover.

Most often, the retarder is a ball of metal or plastic that blocks part of the bypass channel in the water regulator. In most column designs, this moderator is located in the boss of the water regulator cover.

As a last resort, you will have to resort to the procedure of parsing the element. It must be said right away that the external screw does not affect the position of the ball in any way.

The inner screw must be removed very carefully. You should first remember its initial position, and also clearly determine the number of revolutions by which this screw is screwed in

This will allow you to maintain the required location of the element (ball) during subsequent assembly.

After repair work, be sure to check all connections to completely eliminate leaks of both water and gas. All connections must be treated with a sealant to ensure tightness. After which you can put the casing in place and use the column as usual.

Eliminating the problem

Temporary. To reduce the temperature in the room, you can open the window slightly. At the same time, due to the decrease in temperature, the relay protection against overheating will stop turning on and the water heater will not go out.

Final. You can completely get rid of the problem only by replacing the bad relay.

Malfunction of the ignition system.

One type of ignition system for geysers is a pilot burner. But more modern models are equipped with an electronic ignition system for switching on. To create a spark, there are two options: using batteries (batteries); using a piezoelectric element, which is turned on by a device in the form of a turbine placed in a water system.

water heater

If batteries are used to generate the spark, then perhaps they should simply be replaced. Despite manufacturers' assurances of trouble-free battery life for a long time, experience shows that they have to be replaced approximately every year.

Weak or completely absent cold water pressure.

To start a gas water heater, sufficient pressure of cold water entering its system is required. When the cold water pressure decreases, the Oasis heater will simply go out. The protection will work, turning off the column, as if the tap is closed and the column will go out. In this case, you should find out the cause of the problem. Open any cold water tap:

If the water pressure is weak there, then you will not be able to do anything, since such pressure comes from the city system.
If water flows normally from the tap, the filter will probably need to be cleaned or replaced. If the problem is not in the filter, then you will have to clean the gas water heater radiator.

The procedure looks like this:

Close the gas supply valve;
Unscrew the pipes;
Remove the water heater from its hinges;
Turn it upside down and, in this position, place it on the table;
We draw the washing liquid previously purchased from a specialized store into a syringe and inject it into the column;
Leave in this state for two to three hours;
After this, drain the liquid, rinse with water and install in the reverse order.

Some models are equipped with a special handle that regulates the amount of water passing through. If the water pressure in the tap is good, but it is not enough to start the water heater, then the handle is moved to the extreme left position and moved to the right until the water heater turns on. As a rule, the flow has to be adjusted once during startup.

Membrane damage.

One of the reasons why a gas water heater does not ignite is a faulty membrane. If it has mechanical damage or has lost elasticity, then normal operation of the column becomes impossible.

This fault falls into a more complex category. To determine whether the membrane is faulty, it must be disassembled, remembering the location of all parts. To do this, you need to remove the water block from the water heater, disassembling it to remove the membrane. When purchasing a new membrane, you should opt for the silicone version, since such parts have a longer service life.

Internal breakdowns

Now let's see what undesirable phenomena can occur inside the column itself:

Water circuit

Most often you encounter the following problems:

The “original” filters included in some speakers are clogged.
The flow area has decreased due to scale deposits.

Solid deposits, commonly referred to as scale, are formed by magnesium and calcium salts dissolved in water. The higher the water temperature, the higher the rate of scale formation, so the heat exchanger is the first to suffer from this problem. Its thin tubes clog very easily, resulting in a drop in pressure with all the consequences described above.

Today, a number of effective products are produced to clean the pipeline from scale. If a special composition for geysers is used, the heat exchanger does not need to be dismantled. It is enough to disconnect the supply pipe from it and drain the water by opening the hot water tap on the mixer.

Gas water heater water circuits

Then a rubber hose is secured to the inlet pipe of the heat exchanger using a clamp, into which the reagent is poured through a watering can. You need to pour it slowly, otherwise the product will splash out due to a violent reaction.

Descaling products contain very aggressive components, for example, hydrochloric acid. When working with them, you must carefully follow safety rules and use protective equipment - gloves and goggles.

After a 2-hour soak, the supply pipe is again connected to the heat exchanger, the root valve is opened and a certain amount of water is driven through the column.

If you couldn’t get a special product for speakers, you can use any, but then the heat exchanger will need to be removed and washed separately. Otherwise, an important element of the column - the aluminum gearbox - may be damaged.

If for some reason you cannot purchase a factory-made reagent, use a folk remedy - a solution of 100 g of citric acid per 0.5 liter of water.

Ignition system

In some columns, the spark to ignite the burner is generated by batteries - this is the so-called. electronic ignition.

The reason for the “strike” declared by the water heater can be very simple - the batteries are dead and need to be replaced.

The igniter may go out due to the fact that the ignition button was not held down long enough (less than 20 seconds) - the bimetallic plate did not have time to heat up.

Smoke removal system

Soot build-ups can form not only in the chimney, but also inside the column - on the heat exchanger. It needs to be cleaned periodically.

In turbocharged engines, the cause of poor draft may be a malfunctioning fan.

Modern instantaneous water heaters are very different from outdated models, so before purchasing you need to study the main characteristics of the equipment. : recommendations from experts and review of models.

We will consider the technology for pumping a well after drilling in the article. And also read useful tips on choosing equipment.

Automation

The most common type of automatic equipment that fails is the rubber membrane in contact with water. It may become deformed or crack. This element needs to be replaced.

When choosing a new membrane, give preference to silicone-based products - they are the most reliable and durable.

The traction sensor also fails relatively often. To check its functionality, you need to measure its resistance by connecting a tester to the terminals. The device should show “infinity”.

Boiler problems

All systems have been checked, but there is still no heat? So, the problem is still in the boiler itself. Let's figure out why it doesn't work. Malfunctions may appear as follows:

The burner does not turn on or burns weakly
. The injectors may be clogged. They can be cleaned with a soft brush or thin wire. In addition, air could get into the gas line (especially if the connection unit was disassembled). Usually in such cases the gas boiler is blocked and an error code lights up on the display. It is necessary to restart by resetting the lock (how to do this is written in the instructions);
The burner does not turn on when trying to manually or automatically ignite.
Perhaps the gap in the ignition electrode is broken, contact with the current-carrying wire is lost, or the air supply filter to the burner is clogged. It is quite difficult to adjust the gap yourself, but cleaning the filter and checking the wire connection is quite possible;
The burner goes out after burning for some time.
It is possible that the ionization electrode is dirty, the gap in it is broken, or the connecting wire is unsoldered. You need to do the same as in the previous case;
Flame separation
. With such a malfunction, the injector makes a lot of noise (or a characteristic whistle is heard from it). It is necessary to adjust the gas pressure at the igniter. Separation is also possible with excessively high draft and increased supply ventilation (air blows out the flame in the burner). This situation can arise, for example, if the chimney pipe is too high;
The boiler makes noise and switches off spontaneously
. The cause may be a breakdown in the pump or built-in fan (for turbocharged models), failure of the thermostat (water boils), flame separation or breakthrough.

Hot water supply, without a doubt, can be considered a prerequisite for a comfortable life, therefore the occurrence of interruptions in the operation of the gas water heater requires the most urgent measures to be taken.

But you shouldn’t immediately rush to the phone and call a repairman, because the cause of the breakdown may well be trivial and easily fixable even by the user.

Let's try to figure out why the geyser goes out and in what cases the owner himself can restore its functionality.

The main working elements of the gas water heater are:

gas-burner;
the heat exchanger located above it is a long coiled tube in which the water flowing through it is heated.

Auxiliary components of the gas water heater include:

Ignition device:
can be electronic (generates a spark in one way or another) or have the form of a pilot burner (pilot or wick) that burns constantly. In old speakers, the igniter had to be lit with a match. In modern ones, a piezoelectric element is installed for this purpose, which the user activates by pressing a special button.
Water-gas unit:
consists of an interconnected membrane (installed in the water supply) and a gas valve (installed in the gas path). As soon as the user opens the tap and water flows through the column, the membrane bends and opens the gas valve, thus supplying gas to the burner.
Safety automation:
consists of several sensors and a special solenoid valve in the gas path, to which these sensors are connected mechanically or. If deviations occur in the operation of the column, the corresponding sensor will close the valve, thereby turning off the device. In columns with an igniter, a thermocouple is also connected to this valve, heated by the igniter flame. It is triggered when the pilot burner goes out.

The lineup

The company's product range is quite wide. Classic, chimneyless and turbocharged models, varying in their power, operating principle and appearance, are presented to consumers. The most popular are the mid-price columns, which provide an uninterrupted supply of hot water for very little money. Among them there are a number of models, the customer reviews of which are most common.

“Oasis Glass 20 VG” is a flow-through device that requires a chimney and has a unique design. Thanks to its small dimensions of 34x59x14.5 cm, the speaker fits harmoniously into small rooms, does not clutter up the space and does not spoil the interior. The model is powered by batteries, which ensures complete energy independence of the unit and makes its operation independent of power outages. The dispenser starts automatically immediately after opening the hot water tap at a pressure in the water supply pipes of at least 0.02 mPa. The dispenser is equipped with an RCD, thermostat and anti-freeze function, and the presence of the “Winter-Summer” mode allows you to save up to 70 cubic meters of gas per year. The model’s productivity is 10 l/min, which with an optimal power of 20 kW is quite enough for the bathroom and kitchen. The efficiency of the device is 90%, and the cost varies from 4 to 4.8 thousand rubles.

“Oasis TUR-24” is a device from the “Turbo” series that operates from an electrical network and does not require regular battery replacement. The gas burner is ignited synchronously with the opening of the tap. The model does not require the installation of a chimney: combustion products are removed forcibly using an electric fan built into the housing. Exhaust gases are discharged to the street through a corrugated pipe.

Column productivity is 12 l/min. The turbocharged model is equipped with a liquid crystal display that allows you to monitor the temperature and overheat protection that automatically turns off the device if the permissible temperature is exceeded. The dimensions of the column are 33x62x18.5 cm, the cost is 9 thousand rubles.

“Oasis B-12W” is a miniature flow-through chimneyless model with dimensions of 29x37x12 cm and a capacity of 5 l/min. It is usually installed on one of the intake points, which is due to its fairly low power, not exceeding 11 kW. Ignition is carried out using replaceable batteries. The device is equipped with a copper heat exchanger, overheating protection and a display. The cost of the column is 4 thousand rubles.

“Oasis 20-OG” is an economical, energy-independent device designed to operate on liquefied gas from cylinders and used in homes that are not connected to central networks. The model is equipped with a “Winter-Summer” function, gas control, thermometer and ionization sensor. The heater productivity is 10 l/min, the power is 20 kW, and the cost does not exceed 5 thousand rubles.

External fault factors

What to do if the gas water heater does not light? Malfunctions of the gas water heater can be caused by circumstances beyond its control. Let's look at them in order:

Gas supply

There is nothing special to talk about here, and everything is clear: if the gas is turned off, the water heater will not work.

Just don’t rush to blame the gas workers for everything.

If the system has a filter, first make sure it is not clogged.

Water pipes

Here are the surprises the water supply system can present:

Pipe connections were made incorrectly

This is quite a likely reason, especially if an amateur undertakes the installation of the column. If a newly installed water heater refuses to work, check the connection diagram again.

Insufficient pressure

Some of the geysers are equipped with an ignition system, which is driven by a flow of water - it rotates a turbine connected to a piezoelectric element.

With low pressure, naturally, such a system will be inoperative.

The opening of the gas valve is also carried out by water pressure - through the membrane mentioned above. If the water flows barely, the valve will remain tightly closed.

Most often, pressure problems occur in rural areas.

When purchasing a water pump, their residents should definitely check at what minimum pressure it can operate.

However, even in urban conditions, the pressure in the pipe can be negligible. The reason is a clogged mesh filter installed in front of the column. To test this hypothesis, open the cold water tap on your faucet. If the pressure here is normal, then the problem is really local in nature - you need to check the mesh filter or heat exchanger (more on this below).

The inlet water temperature has risen

Due to inexperience, some users forget to take into account the fact that the water in the water supply becomes warmer with the beginning of the spring-summer season. If the speaker remains set to winter mode, it will constantly turn off due to overheating.

Smoke removal system

If there is no draft in the chimney, the automatic protective equipment, despite all your admonitions, will not allow you to use the column.

For example, if the chimney is clogged, the gas water heater will not light.

External reasons due to which the outflow of combustion products may deteriorate include the following:

Chimney blockage:
debris or birds may get into the chimney. In addition, over time it becomes overgrown with soot, so it needs periodic cleaning.
Installation of large objects above the chimney head:
in most cases, such an object becomes a television satellite dish. It prevents the free flow of gases, to which the traction sensor immediately responds.
Lack of outside air flow:
the user must not forget that for normal draft it is necessary to provide air supply to the room from the outside. When the speaker is operating, at least the window must be open. This is especially true for sealed double-glazed windows in metal-plastic frames.
Unfavorable weather conditions:
the column can go out due to the fact that a strong wind or whirlwind worsens the draft or, conversely, sharply increases it, causing the flame to break off.

The presence of traction is checked by holding a column of paper sheet or a lit match to the “viewing window”. If the smoke exhaust system is in proper condition, the flame will be drawn into the “window” and the paper will be pressed against it.

Sources of accident

There are several reasons for burner failure, the main ones being the following factors:

1. Lack of traction.

For any model, be it Neva, Oasis or Vector, the flame goes out or does not light up due to the fact that the chimney is often clogged with dust, dirt and foreign objects. In modern equipment, in this case, a safety valve is activated, shutting off the fuel supply to the gas column automatically. This happens because combustion products are not removed in full and in accordance with technical requirements.

To verify the malfunction, you need to check the traction. To do this, open a window and bring a lit match or a sheet of paper to the pipe. If the chimney is clogged, the wind will not be felt, so the gas water heater will not light. Specialists are engaged in cleaning the combustion waste removal system

It is important not to miss this moment, as exhaust gas enters the room, which can lead to serious consequences

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Sometimes the automation is triggered when a nearby hood is on, and the flame goes out or does not appear. If the device has high power, it interferes with the removal of waste, so you should never install two units in one place, especially in small rooms.

2. Sensor malfunction.

If the pilot flame goes out, it is necessary to inspect the device that controls the exhaust of gases. To do this, disconnect the wires and check the resistance using a special device. The indicator must be indicated in the passport; if it does not reach the optimal value, the sensor will have to be replaced. The burner goes out if the thermocouple breaks down. In this case, the geyser does not ignite due to low voltage, the optimal parameter of which is 10 mV.

3. Discharged batteries.

The main function of the batteries is to keep the valve open during operation. The service life of the elements is no more than a year, so manufacturers of gas units such as Neva recommend changing batteries on time. In addition, the reason that the burner does not ignite may be a malfunction of the piezoelectric element or the power cable. It is necessary to disconnect the wires and check them for internal and external breaks. If there is still no spark, the column does not turn on, then the source of the problem is different.

4. Interior clogged.

If dirt and soot get into the gas supply tunnel from the fittings to the burner, the flame goes out or does not ignite. The injectors need to be cleaned. If the fuel pressure is not adjusted, a characteristic whistle will be heard, the flame will come off, and then it will disappear. Also, a burner of the wrong diameter can create such a malfunction. In this case, you need to adjust the gas supply or replace the elements. When aired, the gas water heater ignites, but immediately goes out. To eliminate the defect, you need to unscrew the nut on the fitting and bleed the air, then return the mount to its place, fix it and check whether the burner goes out.

5. Deformation of elements.

If the water is too hard, scale appears in the pipes, which gradually clogs the filters, so the gas unit goes out or does not turn on. The grate is removed and thoroughly cleaned. If it has become damaged due to deposits, it is better to replace it.

The membrane of the water supply unit often breaks, so the column does not turn on. To determine its condition, remove the top cover of the case. The plate should not have cracks or breaks, have the correct shape, smooth and even. In case of the slightest deformation, it will have to be replaced. It is better to choose a part made of durable and elastic material that is resistant to temperature fluctuations and the influence of scale. The membrane must be installed carefully, pressing the fasteners around the perimeter.

6. Water pressure.

As in the situation with draft, the automation blocks the gas supply; if the supply is poor, the burner goes out immediately. It is worth contacting the utility services to find out the reasons and turn off the unit until then. You can use the column only if the water pressure is normal. In private homes, pressure is increased using a compact station and regulator. If the column turns on and works normally, but the water still comes out cold, the device may not have enough power, the parameters are noted in the passport.

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What is the reason for the speaker turning off during operation?

Sometimes the user is faced with a situation where the column lights up, but goes out during operation. This may indicate a problem with the device's security system. The fact is that inside the column there is a temperature control sensor, which is triggered when it overheats. It consists of two plates. When the temperature inside the device rises sharply, these parts open, the electricity supply ends, and the column turns off.

If you have the necessary device (multimeter, tester) at home, you can check the resistance of the sensor. The operating device will display an infinity sign. If this is not the case, then it is better to call a specialist to repair it.

Soot accumulates on the heat exchanger

During operation, soot, soot, and scale may accumulate on the heat exchanger. As a result, it will simply clog. This can be determined by the changed color of the flame: it will change from yellow to blue. You can clean the heat exchanger yourself by performing the following work.

Remove the casing.
Remove the screws and turn off the water supply.
Drain any remaining hot water in the system.
Disconnect the heat exchanger.
Prepare a 3% hydrochloric acid solution.
Pour it into the heat exchanger and wait a while.
Drain the solution, rinse the tube with water and replace it.
Place the casing in place and tighten all screws.

Clogged hose and shower head

Some speakers owners are faced with the fact that it works fine, but immediately turns off when switching to a shower. This may be due to a clogged shower head or shower hose. To eliminate the problem, you need to wash these parts or soak them in a solution of citric acid. It's also worth checking the faucet. If it is clogged, clean it.

Why does the speaker turn off during operation?

If the gas water heater lights up normally, but for some reason goes out during operation, this may indicate that the device’s security system is functioning properly.

The column design has a sensor that is triggered when the internal temperature rises. There are two plates inside the system that repel each other, stop the power supply, and turn off the column. This happens when your core temperature rises quickly and uncontrollably.

The gas water heater automation system includes three sensors: draft, flame, overheating. Plus two valves: gas and reset. They ensure safe operation of the device

You can check the sensors by resistance. A working part shows an infinity sign. When a different value is displayed, we call a technician.

If the device works for a long time and then turns off, check the settings. Sometimes users accidentally set it to turn off automatically after a certain time.

What else causes the shutdown:

poor water or gas pressure;
broken contact between the thermocouple and the solenoid valve (you need to clean the contacts and tighten the connections);
oxidation of the power supply contacts, when the device clicks but does not light up.

It is also useful to check the batteries. Standard replacement of power supplies is carried out every six months. Batteries hold a charge longer.

Traction is poor or completely absent

The accumulation of combustion products is most often associated with clogging of the chimney with soot, soot, and debris. When there is no traction or it is insufficient, the work is not carried out.

To check the draft, you need to bring a burning match or lighter to the control window of the column. If the flame deviates to the side, there is draft. It remains to burn evenly - it’s gone

It is important to remember that the flame can go out due to external factors - gusts of wind, for example. The draft in the shaft increases or decreases under the influence of a draft

You can clean the chimney through the “pocket” located 25 cm below it. If such manipulations do not help, call the utility company.

Soot accumulation on the heat exchanger

During operation, the heat exchanger accumulates soot, soot, and scale. When it becomes clogged, the color of the flame changes from yellow to blue.

How to clean the heat exchanger:

We remove the casing.
Unscrew the screws holding the casing.
We turn off the water supply.
Open the faucet to drain hot water.
Disconnect the heat exchanger thread and tap. You will need a stand as water may leak.
Prepare a solution of hydrochloric acid (3-5%).
Take a pipe with a diameter of 1/2” or use a hose.
We connect one end to the input, the other to the output.
Pour the solution into the funnel. If foam appears when washing, this is normal.
As soon as a strong pressure appears at the outlet, we stop the procedure.

While working, be sure to wear gloves. After descaling, you need to thoroughly rinse the heat exchanger to remove acid residues.

If during the cleaning process defects were noticed on the tubes, then the heat exchanger will have to be repaired.

To clean the heat exchanger from scale, you can use citric acid (80 g of powder is needed for 700 ml of water). Boil the radiator in the solution for half an hour, leave until cool and rinse

It is recommended to carry out cleaning work once a year. Regular maintenance will help the device function properly.

Clogged shower head and hose

It happens that the gas water heater turns on and for some reason immediately goes out when switching to the shower. This may be due to clogged holes in the watering can.

You need to unscrew the watering can, clean and rinse the holes. Soaking metal elements in a solution of citric acid is also effective.

Scale on the watering can forms due to the increased hardness of tap water in some regions. To prevent this from happening, install filters or buy a faucet with a shower equipped with a built-in anti-scale system

The next part that can cause the wick to go out is the shower hose. If it gets tangled or clogged, the pressure power decreases and the column goes out.

The mixer can also break or become clogged. You need to disassemble it, check it, clean it if necessary.

At the entrance to the water supply unit there is a filter that retains small debris. It is also useful to clean it periodically. To do this, unscrew the screws, remove the element, rinse, and clean with a brush with citric acid.