Why does the geyser turn on with cotton: finding the cause and tips for repairing the breakdown

Traction violation

One of the reasons why the Neva gas column does not light up is a violation of draft in the duct. Most often, the ingress of a third-party object into the air duct causes the operation of the automatic protection of columns with an open combustion chamber.

Under normal conditions, when the natural air circulation is disturbed, the protective relay reacts to a sharp increase in temperature in the outlet duct and turns off the gas supply. In this case, the device starts to work normally, but does not work for a long time.Devices with a closed combustion chamber work similarly, for example, vektor lux eco often does not ignite because even one of the channels is blocked - either air supply to the combustion chamber, or removal of combustion residues.

Solving the problem of why the geyser does not work in this case is quite simple - clean the air duct and ensure normal air circulation in the room. By the way, one of the reasons for the violation of the natural circulation of air in the house and the draft in the ventilation duct can be metal-plastic windows and tightly closing entrance doors.

Types of noise and its diagnosis

If water makes noise in the heating pipes during the operation of the heat supply, then there are certain reasons for the occurrence of this effect. First you need to identify them, and then proceed to reduce noise or completely eliminate it.

Why does water make noise in heating pipes and how to correct this deficiency? Let's deal with the main types of extraneous sounds. They indicate the objective factors for the occurrence of an undesired effect:

• Crack in pipes. Occurs when the heating system is turned on;
• Clicks that appear at regular intervals;
• Constant hum in highways;
• A barely audible knock.

All these extraneous effects - noise in the radiator or radiators significantly reduce the comfort of living in the house. In addition, they may indicate improper operation of the heat supply. If timely action is not taken to correct the situation, any heating element may fail.

If the heating pump or another component of the system is noisy, you should first try to localize the cause of extraneous sounds. To do this, it is recommended to use the following method:

1. Track the frequency of occurrence of the effect.
2. Try to identify the dependence - temperature increase in pipes, pressure surges, etc.
3. Make sure that the noise in the heating boiler comes from it, and not from other objects in the boiler room.

If it was found that the source is a component of the heating system, certain actions should be taken to eliminate this phenomenon.

Water node malfunction

Most often, gas water heaters are repaired due to a malfunction of the water block. Its job is that, under the influence of fluid pressure, the membrane inside it, bending, transmits movement to the rod, and already it moves the pusher of the gas unit. As a result, the spring valve opens and the power supply to the control module is switched on. Therefore, if the water unit is faulty, then the device will not start.

The failure of the water block can be determined by external signs.

1. If you opened the water supply, and the rod pressing the switch plate remained motionless (shown in the figure with a blue arrow), this means that the membrane located inside the main component of the water unit, the “frog”, is damaged.
2. Jamming of the stem may be due to its sticking.
3. There may be a leak in the place where the gas and water units are interconnected, or seepage of liquid from under the control valve (shown by red arrows).

If you notice at least one sign, then the node will need to be removed and repaired. The water unit is removed only together with the gas module, since they are a single structure. You can do this in the following way:

• after you have made sure that the gas valve on the pipe is switched to the closed state, you can disconnect the supply hose (a);
• similarly, when the water supply is turned off, the nut on the water block pipe (b) is unscrewed;
• then, using a wrench, unscrew the nut that connects the water block to the heat exchanger (c);
• disconnect the terminal block (d) on the conductors connecting the solenoid valve with the control module;
• in the same way, the wires (e) going to the switch are disconnected;
• using a screwdriver, it is necessary to unscrew the 2 screws (e) that attach the branch pipe to the water-gas unit, through which fuel is supplied to the burner manifold;
• after unscrewing the fastener, the entire assembly can be easily removed from the device.

Next, you need to disassemble the gas-water module itself.

After removing the device, it is required to separate the water unit. To do this, unscrew the 2 screws (indicated by arrows). It is not necessary to unscrew them completely. With the help of a clamp, they fix the “frog” in the gas unit. The fastening of the “frog” to the latter in different models may differ, as, for example, in the gas column Neva 3208.

This is what the gas module looks like with the water module disconnected.

Next, you will need to disassemble the “frog” itself by unscrewing 6 screws. They can stick and twist out tightly or even “lick off” with a screwdriver if you apply a lot of effort. To prevent this from happening, you can first drop a special liquid WD-40 on them, after which they will easily unscrew, and none of them will break.

After successfully unscrewing the screws, the module opens into two halves, and you will see a rubber membrane.

The membrane must be carefully examined, and if it is found that it has been greatly stretched, or there are gusts on it, it must be replaced with a new one.

To get to the plate with the spring, you need to remove the membrane. If it is intact, it must be done carefully so as not to damage the ring with which it is put on the pipe (indicated by the red arrow in the figure above).
After removing the membrane, you will see a plate with a spring.

So that you do not disassemble the unit once again, inspect the oil seal

To do this, carefully remove the plate with the rod.

Remove the spring and you will see a plug with a slot for a screwdriver. There is an o-ring underneath.

The plug must be unscrewed from time to time to lubricate and replace the rubber seal.

Having previously purchased a repair kit for the “frog”, change the failed gland and membrane. When you install the oil seal back, do not forget to lubricate it with silicone grease, and also lubricate its location.

The assembly of the water block of the geyser occurs in the reverse order. The plug must be tightened so that the stem passes through it without much effort. When you fully assemble the “frog”, the repair of the water block can be considered finished.

The repair of the Neva 3208 gas column due to a “frog” malfunction is similar and intuitive, although the internal view of the unit is slightly different. The gas column Neva 4511 is also disassembled, the repair of which is quite feasible with your own hands.

When a Chinese geyser is being repaired, the size of the water unit is always surprising.It is quite small in size, and to disassemble the “frog”, you need to unscrew only 4 screws.

Signs of incorrect operation of the igniter (wick)

Why does the wick go out in the gas column - reasons

Recall that the igniter is designed to ignite the main combustion system when water is supplied. The flame occurs as a result of the combustion of the heat-air mixture. The igniter heats the thermocouple by physically pulling out the main burner.

If the wick goes out, this process fails. In order to prevent overheating of the technical components of the column and, most importantly, gas accumulation, an emergency shutdown of the gas supply is triggered. As a result, the wick goes out automatically.

It is possible to understand that a gas boiler needs extraordinary maintenance without professional knowledge. The consumer can easily verify this by noticing:

• the predominance of yellow and orange highlights of the flame. Normally, the color of fire is blue with a permissible inclusion of yellowness up to about 10%;
• excessively noisy equipment. There will be no absolute silence when the speaker is turned on, but a strong crackle and rattling indicate possible problems in some node.

Why is the speaker whistling and buzzing

If, when the gas is turned off, the column works quietly and buzzes only when it is turned on, then one of the gas control valve assemblies has failed. In the case of automatic water heaters, a whistle from a geyser indicates the following:

• scale in the heat exchanger;
• gas valve failed.

The problem is solved by cleaning the pipes. You can clean it yourself with the help of improvised means and special chemicals. A boiler that whistles when hot water is turned on can also be noisy due to malfunctions in the gas control valve.Usually, third-party sounds stop when another heating mode is set.

In the event that a semi-automatic gas boiler makes noise during operation, a breakdown may be caused by an ignition burner. A characteristic feature: the column buzzes if the water is not turned on. The fault is related to contaminated jets. In fact, this is the noise of the igniter. After cleaning, all atypical sounds will go away. The boiler will operate normally.

What can be repaired in a geyser with your own hands

Of course, not always a gas water heater wears out or breaks so thoroughly and irrevocably that it is impossible to do without the help of a specialist. According to the reviews of the same mechanics of the gas maintenance service, in 70% of cases, the repair of gas water heaters comes down to routine maintenance and the elimination of minor defects, usually associated with poor quality parts or improper adjustment.

The following activities can be included in the list of works available for repairing gas water heaters at home:

• Minor repairs and repacking of coupling and nut joints of pipelines;
• Replacement of the elastic membrane in the water-gas column regulator;
• Cleaning and adjusting the operation of the thrust sensor;
• Cleaning and flushing of the heat exchanger;
• Ignition board repair.

In a separate category, one can single out such an operation as the repair and soldering of heat exchangers.

It is clear that there is a certain category of expensive water heaters, saturated with automation and electronics, which simply does not make sense to even try to repair at home. For example, repairing Electrolux or Vaillant gas water heaters will cost less at a service center due to the high cost of spare parts.The exceptions are particularly critical components, such as a three-way valve or an ignition board, it is better to buy them from an authorized dealer, even if the price is higher. This is the only chance to repair and not kill an expensive Italian or German column with a substandard spare part.

Columns with ignition wick

The previous generation of instantaneous water heaters "loved" to clap when turned on. Their design today is considered unsafe and less convenient compared to advanced devices. However, the repair of such equipment was much cheaper.

The most common cause of gas accumulation in unintended spaces is incorrect pilot wick placement. This results in a smaller flame that is unable to reach the edge of the burner edge. All this is caused by insufficient amount of gas supplied to the wick. The root of the problem, as a rule, becomes a clogged jet.

Brass jets from where gas enters the burner

You can fix the problem at home, but this will require a complete disassembly of the device. The main part of instantaneous water heaters is arranged according to the same type of scheme, so the instructions for the procedure will not differ much. You need to act as follows:

• shut off the gas and water supply;
• dismantle the protective casing of the column;
• provide free access to the ignition wick tee;
• unscrew the fastening screws of the guide tube, and then remove the nuts of the draft sensor and feed tubes;
• carefully pull the tee out of the groove intended for it;
• having examined the lower pipe, you will find a small screw with a through hole - this is the jet;
• pulling the part out of the tube, clean it with a thin wire or needle;
• assemble the column in reverse order.

Upon completion of the procedure, the water heater should turn on without pops. After finding out why your geyser sometimes turns on with a pop, troubleshoot. In case of complex breakdowns, contact a competent specialist.

No ignition

If for some reason the column does not ignite at all, the first thing to check is the battery that powers all the electronics (including the piezo ignition system).

When the water heater is powered by a built-in generator, you should make sure that the piezoelectric element is in good condition, as well as that there is no break in the supply wires. In addition, it is necessary to inspect the electrode (wick) for damage.

The same actions are performed when the power supply is working. If it turns out that the battery has run down or leaked, you just need to replace it. In the absence of clearly visible external damage, check the condition of the ignition elements with a multimeter. With it, you should ring the lead wires and the start button. If they are in good condition, an audible signal will sound, if there is an open circuit, the device will show an infinitely large resistance.

The same device, included in the voltage measurement mode, checks its presence at the input contacts of the ignition element. The presence of a certain potential on them indicates that all parts are in good order, except for the piezoelectric element.

Whistles in geysers when turning on hot water and after turning it off

Rattles new equipment? Perhaps the reason is not in the boiler, but in an installation error. To find out, inspect all connections, correct connection.

The cost of troubleshooting when the gas burner does not go out depends on the degree of breakdown, the brand of equipment and the period of operation, it is determined during a visual, detailed inspection, but the master will preliminarily announce the approximate cost by phone. If you could not determine the problem yourself, but the clicking does not stop, contact the competent craftsmen immediately.

Set the water control knob to the lowest setting. Due to membrane wear, there may not be enough water pressure to turn on the column.

A normally working wick will have a 90% blue flame and may include some red flecks, and its tip may be yellow.

A normally working geyser produces a rustle or a characteristic whistle that occurs during the ignition process.

If the pilot flame is predominantly yellow or orange, the wick is not working properly, the thermocouple will not heat up enough, causing the burner to go out.

If after turning off the water you hear a click - a piezo discharge, this may mean that there are problems with the frog water regulator. The element responsible for ignition remains in the active position even after switching off. In this case, replacement of the part is recommended.

If there is no draft, clean the chimney. During operation, it becomes clogged with soot and debris.

Another problem is the gradual extinction (reduction) of the burner flame after a short operation of the column. This is clearly due to the destruction of the water block membrane.

If the product whistles and squeaks, you need to find out where the sound comes from.What to do:

• Shut off the gas supply.
• Open the mixer in the "hot" position.
• Did the whistle get louder? So, the problems lie in the water path. The main reason is the deposition of scale on the parts of the heat exchanger or on pipes, blockage. It is necessary to clean all the elements in order to resume the performance of the equipment and eliminate the cause of the whistle. Reverse flow of water can clean the pipes from clogging.

To solve the problem, seal all gaps with self-adhesive heat-resistant tape. An example of sealing in the photo below shows a turbocharged geyser.

This device is shaped like a box. It is made of metal. It has two pipes leading to it. One supplies gas, the second - water.

When starting hot water or during water heating, the machine may whistle. Vibration may be felt when drawing water. This is a sign of the movement of water through the pipes. If the equipment begins to whistle and make more noise, To reduce noise levels.

Scheme for connecting a geyser to utilities: 1 - gas pipe; 2 - gas valve; 3 - water valve; 4 - pipe with cold water; 5 - pipe with hot water; 6 — column controls; 7 - column body; 8 - chimney pipe.

Repair with disassembly of the column, as well as replacement of parts: water unit, ignition unit, membrane, stem repair, etc.

There may be several reasons for such a problem, and in order to understand them, you should check each of the nodes in turn that can cause the column to turn off.

Seals in such windows interfere with the natural ventilation of the room. In this case, to eliminate noise, you just need to control the air flow.

The column or flow heater, as it is called, is a metal box (casing).Two pipes for supplying water and gas are brought to it. The main structural elements are:

• Radiator (water flows through it).
• The main and pilot burners (serve to heat the liquid in the radiator).

Backpressure should be done only after turning off the gas and water. It is also required to unscrew the eyeliner at the inlet.

Weak or no water pressure

Automation in all columns powered by gas is configured to turn on only if there is a certain pressure of water in the water supply. If there is no water at all, or the pressure is too weak, this will be the reason why the column does not turn on. First of all, you need to check the presence of water - for this you just need to open the valve with cold water.

The next steps will depend on the situation:

• If the water does not flow or its flow is very weak, then the problem is in the water supply. In this case, you just need to wait until they give water with normal pressure.
• If cold water flows normally, then the problem is the clogging of the column itself (read: “Why do you need to clean the gas column and how to clean it correctly“).

To clean the column, you can perform the following actions:

1. Close the supply valve on the gas pipeline.
2. Unscrew the pipes.
3. Remove water heater.
4. Turn the column upside down and place it on a flat surface.
5. Using a syringe, inject the cleaning fluid into the heater. Such a special composition can be bought at specialized points of sale.
6. Wait a few hours for the liquid to work. The time is indicated in the instructions.

If you do not want to do the dirty work yourself, you can invite a specialist.

Water flow problem

Often the column does not ignite when the water is turned on due to a decrease in the water flow. With such a malfunction in the tap, the jet of water when turned on is very thin, weak. There is a feeling that the geyser in appearance is faulty. This happens with absolutely any brand: Neva, Oasis, Bosch.

A decrease in water flow can occur:

• Abruptly, the loss of efficiency disappears instantly.
• Gradually, with a noticeable decrease in the efficiency of the gas column;

A sharp loss of efficiency of the gas column can occur in connection with street work. During this time, street water pipes can be repaired. Accordingly, the total pressure of cold water everywhere will be drastically reduced. The owner can easily skip this moment and look for the cause in the geyser, disassembling it. The reason lies on the surface, but a person gets confused and looks for it in a completely different one.

Also, the water pressure in the gas water heater may gradually decrease due to the banal contamination of the aerator designed for the mixer. To eliminate the cause of the malfunction associated with the aerator in the faucet itself, it is necessary to remove and clean it.

This is a typical aerator that is installed on the mixer. Try to clean it

Owners who have a mesh filter at the inlet should also not forget about it and periodically clean it.

Coarse filter. It is installed on the supply of cold water to the column. Clean it up too

The filter flask can also cause a gradual decrease in water pressure in the geyser

You should not forget about this and, first of all, when the wick of the gas column does not light up, pay attention to this. If you miss the reason that lies on the surface, there is a risk of investing in unnecessary diagnostics or repair of the geyser

Repair and diagnostics of the geyser, in this case, are not appropriate.

Two filters for water purification in flasks. They can also get stuck

There is another case associated with the lack of water pressure when the gas water heater is turned on. This happens due to mechanical clogging of the hose. Scale was found in the hose, and it blocked the path of water. Scale could come from the heat exchanger.

If the equipment is still noisy?

If, after the manipulations done, the gas water heater still ignites with cotton when the water is turned on, then it is better to stop further independent research. In such situations, you will need to seek help from qualified professionals.

They will make a competent diagnosis of the equipment, they will be able to clearly establish what is the cause of the cotton and, based on the data obtained, they will be able to provide you with options for solving the problem.

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

2 Causes of equipment failure

There are many reasons user complaints about the performance of gas water heaters, starting with mechanical damage, improper operation and other man-made factors, ending with poor quality equipment or wear of individual parts.Depending on the root cause and complexity of the breakdown, you can fix it on your own, for example, in the case of smoking and attenuation of the device, or you will have to call the wizard if it is impossible to fix the problem yourself.

The reason for the failure of the igniter may be the lack of draft in the chimney, as a result of which the electronic control system automatically stops the supply of fuel. It is quite simple to check whether this really became the reason for poor ignition. It is necessary to bring a lit match to the hole with a thrust. If the fire is not moving, then the chimney is blocked. This suggests that he needs urgent cleaning, because dust and other construction or household debris constantly accumulate there. In addition, you should carefully inspect the roof for the presence of foreign antennas or receiving devices satellite signal installed by craftsmen.

If there is no ignition spark during the ignition of the gas installation, then this indicates damage to the piezoelectric element. Dead batteries are considered another common cause, because there are many models of battery-powered water heating equipment on the market. For example, devices from the manufacturer "Junkers". To fix the problem, just change the batteries.

Why does the geyser light up with cotton: reasons. troubleshooting methods

There can be several reasons for igniting a geyser with cotton:

• the battery charge has decreased; the smoke channel is clogged and the draft has weakened;
• the jet supplying gas is clogged;
• the opening of the main burner is clogged;
• delayed gas ignition;
• no supply of fresh air into the room;

All types of geysers can be divided into two categories:

• with a constantly burning wick;
• with automatic ignition.

The interior of a gas burner

Cotton comes from the explosion of the air-gas mixture accumulated in the ignition zone. If nothing is done, there may come a moment of such a loud bang that the windows in the apartment will be blown out. No jokes with gas. Therefore, when the first small pops appear, take measures to eliminate this phenomenon. There are two options for resolving this issue: 1. Call a locksmith. 2. Solve the problem yourself. Why does popping occur when the gas column is turned on and what should be done first? For those who decide to eliminate the problem of "pops" on their own, our step-by-step instructions