Why does the geyser slam when you turn on the water?

The use of a gas water heater makes it possible to obtain hot water at any time at the request of the residents. Warming up with gas is very convenient, but the use of such fuel requires careful adherence to safety precautions. Sometimes you can hear a pop when you turn it on. Its appearance is associated with wear and tear of equipment during operation. To take measures against the occurrence of such a malfunction, it is important to know why the geyser turns on with a bang and what needs to be done to correct the problem.

Gas water heater ignition device Source tehnofaq.ru

Video description

Why does the gas water heater light up with a bang?
Troubleshooting. Ignition should occur immediately after switching on, while a small amount of gas is still supplied. Next, the user uses hot water at his discretion. After closing the tap, the burner goes out.

Checking the presence of traction Source tehnofaq.ru

Nature of the phenomenon

When the gas begins to flow, it does not ignite immediately. During the time elapsed before it, a certain amount of gas accumulates, which ignites almost instantly. If this happens with a delay, you can hear a pop when the gas water heater is turned on.

This is what a clogged chimney looks like Source tehnofaq.ru

If the flame appears quickly, the column begins to operate silently. However, if there is a delay or as a result of various types of malfunctions, ignition occurs with a bang. Its sound is a signal that the column is faulty and needs to be repaired.

The presence of a pop indicates that gas is accumulating before switching on, which in some cases can cause an explosion. Therefore, if such cotton occurs, the owner must repair the geyser. If this is not done, gas may leak into the chimney. In the event of a fire, this will lead to an emergency situation. A fully functional column should light up silently.

Modern gas ignition system Source tehnofaq.ru

Air shortage

In a kitchen with PVC windows, air circulates worse. This negatively affects the operation of the column. And when it is turned on, cotton appears due to a lack of air.

This dilemma also arises because of the door leaf, which fits tightly to the lower threshold.

It is necessary to install supply valves on the window.

It is also important to install special grilles on the door.

In accordance with SNiP standards, a gap of 5 cm should separate the kitchen door and the floor.

Possible reasons

In order to notice a problem in time, you need to know what can lead to its occurrence. Below are the most common reasons why a gas water heater slams when turned on.

Insufficient traction

Gas burner combustion products must be removed through the chimney. In some cases, they can sometimes re-enter the geyser when overheated. As a result, the mixture of air and gas becomes contaminated and ignition becomes more difficult.

In such a situation, fire occurs with a bang. To eliminate this cause, it is necessary to eliminate the formation of backdraft in the chimney.

To detect this problem, you need to do the following: There is a special hole in the upper part of the casing with which you can check the presence of traction. To do this, just bring your hand to it - you should feel the flow of air. You can also use a burning match by holding it close to the hole. If everything is in order, you will see a noticeable deviation of the flame.

The video talks about repairing a gas water heater that slams when turned on:

Troubleshooting Tips

Why doesn't the gas heater light up? The proper operation of gas equipment begins with a competent choice of systems, since each manufacturer of geysers has its own “pain points”:

for example, Bosch's thermocouple and igniter are initially weak. Why does the wick go out in a Bosch geyser? After 3-4 years of operation, the thermocouple needs global cleaning;
Russian water heater Ladogaz VPG 10 is sensitive to water pressure;
the popular “state budget” OASIS quickly begins to act up if the water quality is poor. All these points and upcoming operating conditions must be taken into account when purchasing equipment.

If troubles start, you need to act as follows:

stop using the speaker;
read the instructions to understand possible reasons;
Call a gas service specialist.

Standards for servicing gas equipment require hardware fault testing, and the specialist must have permission to service networks.

Therefore, in case of any problems with heaters and boilers, the services of home craftsmen are not the best way out. Entrust repair work only to employees of professional certified organizations for servicing gas networks and equipment.

Here you can watch a video on how to repair a gas water heater igniter yourself:

See also Phone numbers for consultation Nov 29, 2022 kasjanenko 391

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Discussion: 2 comments

5master5 says: 12/02/2018 at 04:59 pm
Extensive and detailed instructions on the cause of problems with the gas water heater. But there is only one answer - turn off the gas and immediately call the gas service. Another piece of advice is to sign a service agreement for gas equipment.
Answer
Serge says:
02/29/2020 at 18:50
Pi@or
Answer

Video description

The gas water heater is slamming loudly, we are treating it.
Another reason for the deterioration of the chimney is its contamination with soot. To inspect the pipe from the inside, you can use a small mirror. If there are soot deposits on the walls, cleaning will be required.

The draft through the chimney significantly depends on the quality of ventilation in the room. If it is missing, then this may cause reverse draft. When using a gas burner, you must at least open the window or window. A more reliable way would be to install a modern indoor ventilation system.

Sometimes the problem is caused by too much craving. In this case, the relatively high pressure in the ventilation duct can force the exhaust gases back into the burner. This usually occurs when there are powerful exhaust fans. In this case, it is recommended to interrupt their operation for a while and then turn them on again.

Dead batteries

To ignite the gas-air mixture, the automatic ignition system uses a special electrical device. If the batteries are low, instead of a flame appearing, you will hear a pop or a prolonged crackling noise. At the same time, gas accumulation continues, which increases the risk of an accident. If such a situation occurs, it is recommended to install new batteries.

Sometimes for repairs you need to contact specialists Source 101studio.ru

How to determine power

First of all, you need to decide on the power or performance of the gas water heater. These are two interrelated characteristics that simply reflect different characteristics of the unit. Performance is how many liters of water a column can heat per minute, and power is how much heat it can release. Some manufacturers indicate power, others indicate performance, so you need to understand exactly what you need.

Let's first figure out what kind of performance you need from your geyser. This depends on the number of consumers who need to be provided with warm water. There are consumption standards for different types of equipment:

kitchen sink, washbasin - 4 l/min;
shower - 7-10 l/min.

If you have a kitchen sink, shower and washbasin connected to hot water, so that all three points work simultaneously and the water temperature does not drop, you need a capacity of 4 + 4 + 10 = 18 l/min. This is a lot, the price tag will be substantial. If you think about it, you will realize that all three devices are almost never turned on at the same time. There are situations when the shower and one of the taps work together. To provide them with hot water, the capacity must be 14 l/min. This is a little more modest, but quite enough for a comfortable stay. Look for the found value in the technical specifications; it should not be less.

Now let's look at power. Gas water heaters can allocate from 6 kW to 40 kW of heat for heating water. Here the division is:

a gas water heater with a capacity of up to 19 kW is suitable for heating water for one water collection point;
for two points the power should be from 20 kW to 28 kW;
three require more than 29 kW.

Now, you can definitely say which geyser is better in terms of power in relation to your needs.

Features of speakers with automatic ignition

When purchasing a modern device, the owner can use a convenient and reliable method of igniting gas in the dispenser. However, the complexity of the design increases the likelihood of failure. In order to ensure the reliable operation of the speakers, you need to know what problems may arise and understand what to do in this case.

If the column begins to click when ignited, you need to check the following:

Make sure you are using fresh batteries. If this is not the case, you need to replace them.
It is necessary to pay attention to the correct operation of the liquid pressure microregulator. This sensor sends signals to the electronic control unit. Based on them, the device operates. As soon as the water supply begins, a command is given to ignite the gas. If the sensor is faulty, it may not arrive on time. To check the correct operation, you can use a multimeter or similar device. If a breakdown is detected, the sensor must be replaced.
The gas ignition unit must be correctly positioned. If it has moved for any reason, this can lead to popping noises. Such a malfunction can be checked visually. If necessary, the device for igniting the gas mixture is given the correct location. The shift can occur due to exposure to temperature changes or due to the gradual loosening of the mounting screw.

Sometimes problems arise due to oxidation of contacts. In this case, it is necessary to inspect them and clean them. If the fault cannot be detected on your own, you will need to return the device for repair. However, with careful operation, you can count on long-term and trouble-free operation of the gas burner.

To clean the nozzle, you can use a thin wire Source dns-magazin.ru

Why doesn't it light up?

Let's start a review of breakdowns using the example of such simple geysers as Oasis, Orion or Neva. These are fairly simple devices, so almost any man who knows how to work with tools and has relatively straight hands can handle their repair.

Here is a short list of possible faults and causes:

Lack of traction;
Insufficient water pressure;
Insufficient gas pressure;
Inoperative ignition system;
Clogged tubes and water supply filter;
Burner clogged;
Malfunction of the membrane or gas block;
Inaccurate mixing of cold water in the mixer;
Faulty electronics or sensors.

Now we will look at how to eliminate breakdowns and causes of lack of ignition.

Elimination of traction disorders

If there is no draft, the gas water heater will not light and users will not receive hot water.

Many dispensers are equipped with draft sensors, and if they show insufficient draft, ignition will be impossible.

Situations are possible when the flame lights up and immediately goes out - this is due to the fact that the combustion products simply have nowhere to go, they remain in the combustion chamber, and the flame goes out due to lack of oxygen.

Lack of draft will require an inspection of the flue gas collector and the chimney itself. If there are blockages here, they can interfere with the normal passage of combustion products.

The column perceives this as a lack of traction and does not allow the gas to ignite (or the gas goes out immediately after turning on).

Unfortunately, you will be able to independently check only the part of the chimney that is visible before entering the wall - further work must be carried out by specialists. If the house is private, you can try to figure out the chimney yourself.

Water pressure problem

If your gas water heater does not light up, but everything is fine with the draft, then there may be a problem with the water supply. A small pressure often leads to the ignition not working.

You can try to adjust the pressure on the column itself using the appropriate regulator - sometimes this helps (although the regulator is not present in all models).

We also check the filter installed at the inlet of the column - it could be clogged.

If there is no pressure even in a cold water tap, all that remains is to complain to the authorities responsible for water supply - the pressure must correspond to the standards established in the country.

If no one is going to do anything, we install a pressure-increasing pump - it will raise the pressure to the required limits and help ignite the gas in your column. Installing a pump is a completely legal operation.

You can also check the pipes passing through the apartment/house; it is quite possible that they are clogged or rusted to such an extent that the clearance has become very small - this has a negative effect on the pressure.

Insufficient gas pressure

The dispenser may not ignite even if there is insufficient gas pressure in the line itself.

To check, try lighting a gas stove - if the gas pressure is very low, you need to call the gas service and complain.

Unfortunately, in this case, independent repairs will be impossible; problems with the gas supply should only be dealt with by specialists.

Problems with ignition

Situations are often observed when gas is supplied, there is draft, the pressure is normal, but the gas water heater does not ignite.

If you have a Neva or Oasis gas water heater installed with electric ignition, listen to see if there is a spark being generated.

The presence of a spark is indicated by a characteristic crackling sound heard when the tap is opened.

If you hear a crackling sound, but the gas heater does not ignite, try replacing the batteries - this is a very common reason for the lack of ignition (a weak spark makes normal ignition impossible).

Owners of speakers with piezoelectric ignition need to make sure that the igniter is working. If it lights up, then the column should light up immediately, without hesitation. If there is no flame, try to light it with the ignition button.

If the gas in the igniter does not ignite, then the problem is in the igniter itself (in the nozzle) - it needs to be cleaned. To do this, we disassemble the gas water heater, get to the fuse and clean it with steel wire. Next, we try to light the column again.

When repairing your geyser, be careful and always turn off the gas supply before carrying out any operations.

As for hydrodynamic ignition, it is a combination of a small generator and an electrical circuit that generates a spark and powers some other electronic components.

If the generator or circuit fails, the gas water heater will not light. Self-repair here is only possible if you have the appropriate knowledge and experience in electronics repair.

Blockages

Filters are often installed at the entrance to the gas water heater, which filter out small solid impurities contained in the water. Salts also settle here, becoming an obstacle to the normal passage of liquid.

As a result, the water heater stops lighting up and providing the household with hot water.

In this case, you need to turn off the water supply, unscrew the filter and clean it. If the condition of the filter is very severe, then it is easier to replace it.

Also, during many years of operation of the column, the tubes or heat exchanger may become clogged. In this case, you need to check the permeability of the water unit and make sure that the heat exchanger is permeable.

Blockages are removed by washing with special reagents; to purchase them, you should contact your nearest hardware store. After flushing, the functionality of your geyser will be restored.

Problems when using old speakers

Some apartments still have speakers that are not equipped with automation. They have a simpler structure, but are much less convenient. If you hear a popping noise during use, the most common cause is that the igniter head has become misaligned.

As a result, the flame moves and cannot ignite the mixture of gas and air. Sometimes this happens because the flame is too far away. In this case, a significant volume of gas is supplied, which is ignited with a delay. In this situation, it is necessary to check the correct position of the burner and adjust as necessary.

If the problem is related to the jet, then for self-repair you will need to perform the following steps:

Before starting repair work, you need to shut off the flow of water and gas to the device.
Next, you need to carefully remove the protective cover.
It is necessary to provide convenient access to the ignition wick.
Next, the fasteners are removed from the guide part, then the supply tube and sensor are disconnected.
Remove the tee from the groove.
In the lower pipe you need to pay attention to the jet. It can be found by the screw, which has a through hole.
The screw is pulled out and the hole in it is carefully cleaned. This is convenient to do using thin and soft wire.
After completing the procedure, assembly is performed in reverse order.

It is important to understand that not only popping noises, but also any unexpected noise are signs of possible problems. After disassembling the device and cleaning the jet should work without popping.

Gas water heater design Source dns-magazin.ru

Diagnostic method

If you decide to carry out repair work yourself, the owner must strictly follow the instructions. First of all, experts advise checking the intensity of the chimney draft. The main part of the geysers is equipped with a casing, which has holes provided just for this procedure. If the column manufacturer has not made such holes, the draft can be checked right next to the slot located at the smoke hood. In addition, the draft is perfectly felt at the chimney cleaning hatch.

Cylinders in cars

Why do propane gas tanks in cars explode? Today this is also a fairly pressing question.

The most popular reasons for this are:

Poor quality of system units.
Incorrect hardware setup.
Leakage due to subtle cracks and rust.
Lost seal due to constant impact.
Constant overheating of the gas tank.
Excessive filling of the cylinder, not according to the norm.

P.1 deserves special attention

It is very important to purchase high-quality gas equipment and maintain it correctly. Also, drivers often do not observe the simplest safety measures when refueling and operating the tank.