The geyser lights up and goes out: why it turns off and how to fix the problem

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.

Ways to prevent malfunctions

When purchasing a device, you should pay attention to the minimum water pressure required for the normal functioning of the device. The passport data must be compared with the water pressure in the apartment.

For the column to work properly, you must:

• carry out preventive maintenance once a year or more often;
• inspect the chimney a couple of times a year and clean it, if necessary;
• clean parts from scale and soot;
• provide adequate ventilation.

And don’t forget to change the batteries on time.

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.

Reasons for the attenuation of double-circuit gas boilers with hot water supply function

Double-circuit models of gas boilers spontaneously extinguish (among other things) when the water overheating protection system is triggered. Main reasons:

• mixing hot and cold running water;
• thinning of the gearbox membrane (water unit).

The instructions for most boilers with a water heating circuit (DHW) indicate that two taps cannot be opened at the same time: when cold water is turned on, the hot water flow is reduced, and heat continues to be produced, overheating the heat exchanger. Therefore, at low pressure the gas shuts off and the flame goes out.

To avoid overheating, it is recommended to select a comfortable hot water temperature by changing the position of the regulator on the boiler control panel. If the dual-circuit unit turns off during proper operation, then it is necessary to change the gasket of the water unit, since it is probably already worn out.

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.

Why does a gas water heater light up and go out?

• The wick of the gas water heater is clogged with dust;
• Poor traction or complete absence;
• Large accumulation of soot on the heat exchanger;
• The flame ionization sensor is faulty;
• The solenoid valve or servomotor is faulty;
• Poor contact between sensor and control unit;
• Ionization sensor outside the flame range.

DIAGNOSTICS

On this page we have described in detail all the faults, so the cost of this service for you is

0 RUBLES

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.

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.

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.

Video card

Also, a similar phenomenon can be caused by incompatibility of computer components with the screen. This is a normal phenomenon, and in practice it does not occur too often.

The most common case is the incompatibility of the video card with the monitor. It is enough to connect the screen to another PC to make sure that the component is working - it will perform its functions normally.

Does the monitor turn on for 2 seconds and then go off? If there is a possibility of incompatibility with computer hardware (for example, an old video card and a new screen or vice versa), the only correct solution is to fix the problem. The user will have to either change the monitor, or look for an incompatible computer part and replace it.

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.

Computer connection

Does the monitor turn on for 2 seconds and then go off? The reasons for this phenomenon are varied. The first thing you need to do is make sure that the device is connected to the computer correctly.

In general, it is recommended to disconnect the monitor from the PC and then reconnect it, checking all wires for integrity. The fading problem may be caused by some contacts coming loose. No one is immune from this.

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:

1. The mesh filter installed in the shower head is clogged.
2. 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.
3. The inner rubber pipe of the hose has become twisted, blocking the flow of water.

Faulty ignition system

This means that a sensor that reacts to combustion products is working. There are so many of them that they simply cannot be removed from the system.

• Clogged with debris, soot, and soot.

Because of this, there is no normal traction, waste simply is not removed outside. Then the owner just needs to clean the hole on his part. If this does not help, you will have to call representatives of utility services. They will help you understand why geysers turn off.

• Powerful ventilation working nearby.

Because of this, the waste is drawn into the ventilation hole. It is recommended to turn off the ventilation while the speaker is operating. Or you need to set the minimum power.

• Heat exchanger clogged.

In this case, during operation, soot, soot, and scale are deposited on the internal surfaces. Because of this, the color of the flame begins to change. It turns not blue, but yellow. Then you will need to remove the casing, unscrew the heat exchanger mount, and clean the structure.

• In the absence of ventilation.

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.

Wear

Does the monitor turn on for 2 seconds and then go off? LG or any other manufacturer is not that important. The main thing is that the main causes of problems and methods for eliminating them always remain the same.

Sometimes this phenomenon occurs due to simple wear and tear of the device. Any equipment has its own warranty period. After its completion, you should not be surprised by failures, malfunctions and refusals of devices to perform their functions. That is, the monitor may simply “die of old age.” This is normal. It’s not hard to guess that this arrangement is relevant mainly for older devices.

What to do? Your best bet is to buy a new monitor. It will 100% work fine for a long time. Devices that are already worn out, even after repair, either will not cope with their tasks, or they will quickly fail.

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.

Internal breakdowns

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

Water circuit

Most often you encounter the following problems:

1. The “original” filters included in some speakers are clogged.
2. 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”.

Dim picture

But that's not all. The proposed scenarios are relevant for situations where, when the PC is turned on again, the monitor completely refuses to show signs of life. But, as already mentioned, other situations are also possible.

What should I do if the monitor turns on for 2 seconds and the backlight goes out? Or, for example, the user can see his desktop, after which the image fades?

The cause of the breakdown is either burnt fuses or damaged backlight bulbs. As already mentioned, it is best to take the monitor to be repaired. Service centers will help you correct the situation for a small fee.

If you have the desire and at least some skills to repair complex mechanisms, you can try to replace the lamps and fuses yourself. After correct actions, the monitor will work again.

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:

1. 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.
2. 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.
3. 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.

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:

1. Chimney blockage:
   debris or birds may get into the chimney. In addition, over time it becomes overgrown with soot, so it needs periodic cleaning.
2. 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.
3. 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.
4. 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.

The most common causes of breakdowns

We will consider breakdowns using the example of simple Oasis and Neva units.

The design of these devices is not complicated, so any man who has the skills to work with tools can repair them.

Let's consider a number of possible malfunctions and reasons why the gas water heater does not ignite:

• lack of traction;
• water pressure is too weak;
• insufficient gas pressure;
• the ignition system has stopped functioning;
• the hot water supply pipes or filter are clogged;
• the burner is clogged;
• problems occurred with the membrane or gas block;
• inaccurate mixing of cold water in the mixer;
• faulty electronics or sensors.

Traction disorder

If there is no draft, then the gas water heater will not ignite and users will have to forget about hot water. Many dispensers are equipped with draft sensors, and if their readings indicate insufficient draft, then ignition will not be possible.

If the gas water heater does not ignite well, or the flame ignites and immediately goes out, this is due to the fact that the combustion products do not find an outlet and remain in the combustion chamber, and the flame goes out due to lack of oxygen.

In such a situation, it will be necessary to inspect the flue gas collector and the chimney itself. If blockages are present, they can become an obstacle to the normal passage of combustion products. The column perceives this as a lack of traction and does not allow the gas to ignite (or it goes out immediately after switching on). You can independently check only a certain section of the chimney, which is visible before entering the wall - subsequent work should be carried out by specialists.

The problem is related to water pressure

If your gas water heater does not light up and there are no problems with draft, then the possible cause of the problem is the water supply. A small pressure very often becomes the reason that the ignition does not work.

You can try to adjust the pressure on the column itself using the appropriate regulator - sometimes such manipulations lead to success. In addition, you need to check the filter, which is located at the entrance to the column - it could be clogged.

If there is no pressure even in a cold water tap, then all that remains to be done is to write a statement to the authorities that are responsible for water supply - the pressure must correspond to the standards set in the country. If no one is going to solve this problem, then you need to install a pump that increases the pressure - it will increase the pressure to the required standard and help ignite the gas in the column.

You can check the pipes passing through your apartment/house. It is possible that they are clogged or rusty.

Insufficient gas pressure

If the gas water heater stops igniting, the reason may be due to insufficient gas pressure in the line itself. In order to verify this, you need to light the gas stove - and if the gas pressure is very low, then you need to call the gas service and file a complaint. It will not be possible to carry out repairs yourself in such a situation, since such problems can only be solved by specialists.

Problems with ignition

There are often situations when there is a gas supply, there are no problems with draft, the pressure is normal, but the gas water heater refuses to ignite. If we are talking about a Neva or Oasis gas water heater with electric ignition, then you need to listen to understand whether there is a spark generation.

Column ignition malfunction

The fact that a spark is present will be indicated by the crackling sound that occurs when the tap is opened. If you hear a crackling sound, but the gas heater refuses to ignite, then you can try changing the batteries. Very often there is no ignition for precisely this reason.

If you are the owner of a gas water heater with piezoelectric ignition, then make sure that the igniter is working properly. If it lights up, then the column should light up overnight. If there is no flame visible, you can try to ignite it using the ignition button. If the gas in the igniter does not ignite, then the nozzle is probably clogged. You will need to clean it. To perform this procedure, it is necessary to disassemble the equipment, find the fuse and clean it with steel wire.

It is important to be very careful when repairing a geyser. It is imperative to shut off the gas supply before carrying out any operations.

As for hydrodynamic ignition, it is a symbiosis of a small generator and an electrical circuit that generates a spark and powers other electronic elements. If there is a breakdown of the generator or electrical circuit, then of course the gas water heater will not ignite. You can carry out repairs in such a situation yourself only if you have sufficient experience and relevant knowledge.

Problem with clogs

Very often, filters are installed at the entrance to the gas water heater, which remove small impurities from the water. This is where salts settle, which impede the normal movement of the liquid. All this leads to the fact that the water heater stops lighting and, accordingly, all households are left without hot water. To solve the problem, you need to turn off the water supply, unscrew the filter and clean it. If the condition of the filter is critical, it will be easier to replace it.

You can find out more about how to clean the column from scale, soot and soot here

In addition, clogging can occur in the pipes and heat exchanger. Here you need to check the permeability of the water unit and make sure that the heat exchanger is permeable. Blockages can be removed by washing with special reagents, which can be purchased at any hardware store. After this procedure is completed, the functionality of the gas water heater will be restored.

In order to avoid the appearance of deposits on the inner surface of the column, you need to install a filter at its inlet that will remove small impurities from the water and soften it.

Removing burner blockage

We have to admit the fact that the burners in the Neva and Oasis gas water heaters are subject to blockages. This often happens in models with piezoelectric ignition. Blockages appear due to the accumulation of soot. It must be removed; to do this, you will have to disassemble the column and remove the burner. You can clean it with any available tools. After cleaning, the burner must be returned to its place and its functionality checked. If necessary, you can immediately clean the heat exchanger, because its clogging causes weak traction and poor heating.

If your gas water heater does not light and you decide to clean it, then this procedure is best performed outside, or at least on the balcony. If you clean it at home, the soot flying into the air will definitely stain your furniture and walls.

Gas block and membrane repair

There are cases when a geyser does not ignite due to damage to the membrane - it responds to water pressure and controls subsequent ignition. If this part breaks, then the further operation of the gas water heater will be simply impossible.

More information on how to replace the water unit membrane.

Difficulties in repair are due to the fact that it is difficult to find a suitable membrane - you rarely see them on sale, and they are quite expensive. In addition to the membrane, it is necessary to check the entire gas block, since there are a large number of parts that can break.

In order to disassemble the gas block and repair it, you can use the instructions, of which there are many on the World Wide Web today.

Mixing cold water in the mixer

Most users, instead of adjusting the degree of heating on the gas water heater itself, begin to torment the mixer. If you make the pressure of cold water too powerful, the lit column will simply go out. If at that moment it was not burning, then there is no question that it will catch fire. That is why you first need to turn on the hot water supply, and only then turn on the cold water supply. Better yet, adjust the degree of heating using the appropriate regulators.

Also, do not forget that intensive mixing of cold water is not welcomed by the developers of geysers, because... it may damage them.

Electronics malfunction

Modern geysers are equipped with a large number of electronic units and sensors - only the simplest models lack them.

The sensors are responsible for controlling draft and the presence of flame (ionization control), monitoring the water temperature and automatically adjusting the degree of its heating. If a failure occurs with one of the transmitters, the gas water heater will no longer function fully, with periodic malfunctions.

Users note that most often the draft sensor in the exhaust gas manifold breaks down, which ultimately leads to the fact that the electronics do not allow ignition.

Failures can also be associated with electronic modules, which are present in many geysers. Repairing them is not easy because you need to have the appropriate knowledge and skills. It is best to contact specialists in such a situation.

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.

1. Remove the casing.
2. Remove the screws and turn off the water supply.
3. Drain any remaining hot water in the system.
4. Disconnect the heat exchanger.
5. Prepare a 3% hydrochloric acid solution.
6. Pour it into the heat exchanger and wait a while.
7. Drain the solution, rinse the tube with water and replace it.
8. 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.

The column goes out after ignition

If it was discovered that the column began to fade after ignition, then it is worth paying attention to how this happens: are there any strange sounds, does the igniter go out immediately after being turned on or after some time. A common cause is improper use of the device by users. When such a water heater is in working condition, it is strictly forbidden to open cold water to dilute hot water. This action is a most dangerous violation of the rules of its use. It can cause serious damage to the device. The temperature of the liquid is regulated solely by supplying gas.

Lack of draft in the hood

As a rule, this is caused by a dirty chimney. During operation, combustion products enter it and settle in the form of soot on the walls. Therefore, the ventilation duct requires systematic (once a year) maintenance.

Checking the presence of draft is simple: you need to bring a lit match to the hood. If it functions adequately, the flame should move towards the exhaust path.

Often, a lack of normal draft occurs when plastic windows into a room are tightly closed - they impede the flow of air. During operation, the protective relay overheats, the security system is activated and the device turns off.

Flame ionization sensor malfunction

The fact that the problem is related to the ionization sensor can be understood by the fact that the column goes out almost immediately. The fact is that it is in constant contact with fire, during which ions are produced. They, in turn, are responsible for generating current. And if there are few ions, then the equipment will not turn on normally.

The main signs of a faulty sensor are as follows:

• the burner lights up, but goes out after a couple of seconds;
• If you turn on the column again after this, it will work a little longer;
• the column will light up normally after several consecutive turns on;
• This defect appears when the device is rarely used.

You can try to solve the problem yourself first. To do this, you need to check all the wiring connecting the sensor and the control board. It is important to make sure that all contacts are working properly. After this, unscrew the screws, remove the cover and move the heating electrode closer to the center of the flame. This will extend the life of the part. If these manipulations do not help, then it is better to turn to professionals.

The problem is in the membrane of the water unit

The membrane must be made of elastic material. During operation, its properties are lost, it becomes hard, cracks and scale appear on the surface. As a result, the part may deteriorate so much that the column will go out.

To eliminate this malfunction, you should inspect the membrane and, if it is damaged, replace it.

Advice! In this case, it is better to purchase a part made of silicone - it will last much longer.