Repairing geysers with your own hands - general repair tips. Self-repair of geysers at home: types of typical faults and ways to eliminate them How to repair a geyser

Professional experts argue that gas equipment is a potentially dangerous piece of equipment, so it must be repaired and maintained by experts. You can independently figure out which parts are broken, and this will help restore functionality faster. gas equipment, some problems can be easily fixed with your own hands.

Malfunctions that do not affect the operating principle of the gas water heater can be repaired by home craftsmen themselves. It is important to know the list and description of the most common breakdowns and follow the recommendations from the manufacturer.

Geyser does not light up

When technical device refuses to ignite, there may be several reasons.

Broken igniter. When the igniter is faulty, it cannot burn, in this case you need to contact gas service. A qualified specialist will replace the faulty element; it is not recommended to replace it yourself - this is a real danger.

Repairing a geyser cannot be compared with any other home appliance in terms of its complexity and the number of possible technical problems. More complex and rich in possibilities technical nuances There may only be repair of gas boilers at home. If you can still try to repair the water heating device yourself, then maintenance and renovation work The heating boiler, regardless of the amount of built-in automation, the presence of a second circuit and the manufacturer, is best entrusted to a certified specialist.

What can you repair in a gas water heater with your own hands?

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

The list of works available for repairing geysers at home can include the following:

• Minor repairs and repackaging of coupling and nut joints of pipelines;
• Replacing the elastic membrane in the water-gas column regulator;
• Cleaning and adjusting the operation of the draft sensor;
• Cleaning and washing the heat exchanger;
• Ignition board repair.

It is clear that there is a certain category of expensive hot water heaters, full of automation and electronics, which there is simply no point in even trying to repair at home. For example, repairing Electrolux or Vaillant geysers will cost less service center because of high cost spare parts The exception is particularly critical nodes, such as three-way valve or ignition board, it is better to buy them from an authorized dealer, even if the price is higher. This is the only chance to carry out repairs and not destroy an expensive Italian or German speaker with substandard spare parts.

Repair of geyser Oasis

Chinese water heating devices Oasis have attracted attention on the domestic market, primarily due to their low price and simplicity of design, which allows for do-it-yourself geyser repair in almost any problematic situation. The structure and format of the main parts are very similar to most domestic systems, so there are no problems with disassembly and repair, even if there are no repair instructions or diagrams for the Oasis gas water heater.

It is known from practice that Chinese gas apparatus Oasis suffers from three types of defects:

• Rapid battery discharge;
• Failure of spark plugs;
• Water leakage on the seal of the membrane water pressure sensor.

In the first case, the problem with the batteries manifests itself in a rather unusual way; the indicator display pleases with blue or green light, but when you try to turn on the gas water heater, nothing happens. Repair of such a defect is carried out by simply replacing conventional salt batteries with alkaline cells with increased charge capacity. They should last for at least a year.

Disassembling the Oasis for repairs

If drops of water begin to appear under the column, this most likely means that repair of one of the flow parts of the water heating apparatus will be required. To determine the cause of water leakage and carry out repairs, the Oasis must be disassembled. First of all, you need to remove external cladding apparatus. To do this, remove the handles and unscrew the screws in the lower part of the body.

The next step is to disconnect the connectors from the indicator panel and microswitch.

We gain access to the future place of repair - the membrane water pressure control unit.

We repair the gas water heater control unit

In order to remove the pressure control unit, you must carefully disconnect the microswitch connector and remove the two screws securing the heat exchanger flange to the unit body.

It is clear that before repairing a gas water heater, the water must be turned off and the remaining water pressure in the system must be released by opening the tap.

For repairs, you will need to additionally remove the gas block of the water heater and the burner device.

The removed unit can be disassembled for repair by removing four steel screws. Typically, steel fasteners stick strongly to brass, so the joint is pre-treated with VD-5 or brake fluid.

The pressure control unit operates as follows:

It is clear that the surface of a steel rod, when in contact with rubber, intensively corrodes and becomes covered with cavities. Each movement of such a rod leads to catastrophic wear of the oil seal, which begins to leak within a year. In addition, during any repair, at the first opportunity it is necessary to change the membrane to a high-quality rubber one.

A situation often occurs when, before repairing the seal, the geyser begins to boil and spew steam. This suggests that the membrane also needs to be cleaned of dirt and, if possible, replaced.

Repair of the geyser electrode system

Chinese manufacturers of Oasis geysers always like to save on the quality of the materials used. An example is a situation where a new, fully operational gas water heater stops igniting even with a working water and gas control unit and ignition board.

The reason is the failure of one of the three spark plugs of the burner flame. The design of the burner device is such that in order to ignite the gas, it is necessary that all three spark plugs be in good working order.

Repairing the gas water heater ignition system begins with identifying the faulty spark plug. To do this, you need to remove the cladding, turn off the lights and shade the room. When starting the gas water heater, you can see how on one of the spark plugs the electric discharge strikes not into the gas flow, but much lower, into the housing.

The situation is extremely dangerous and requires urgent repairs ignition systems for gas-air flow in the column. Repairs cannot be postponed, even if the column lights up the second or third time it is started. When starting, the fuel chamber and exhaust device are pumped a large number of mixture of gas and air, and if the ignition of the column is triggered with a long delay, an explosion and fire are possible.

For repairs, it is necessary to dismantle all three spark plugs, clean them of carbon deposits and oxidation products. One candle definitely pierces the body, the rest are unknown in what condition, so all three are put in an insulating heat-shrinkable polymer tube, at least three or four layers. During the repair, you will need to insulate the clamping bar in the same way, which secures the spark plugs to the burner body.

Repair of geyser Neva

Most models of Neva geysers have proven themselves to be simple and easy to repair. water heating devices. They are far from the reliability of European models, but repairing them is much cheaper, and you can almost always do it yourself.

Failure and subsequent repair of a spark plug is considered by the rules to be an atypical case of breakdown, therefore, after performing repair work, it would be correct to look for the cause of the defect. Most often, plastic burnout occurs due to condensation flowing through the ventilation system onto the body of the gas burner.

How to repair a heat exchanger union nut

One of the most common defects of Neva geysers for almost all models is the low quality of the metal of the heat exchanger. According to the rules, the heat exchange circuit through which water moves should not come into contact with aluminum parts, for example, a gas burner or a control unit. Any such contact can cause electrochemical corrosion of the copper walls, and then repair will simply be useless.

In addition, the rules for tightening the union nuts that secure the heat exchanger to the regulator and outlet pipe are not always followed. With each heat exchanger removal and repair, the nuts cut a thin, barely visible path into the copper wall. Ultimately, the flared end and part of the copper pipe simply break off the tenth time of twisting.

In this case, you have to trim and level the broken area, install a new nut with external thread and connect the heat exchanger to a conventional block regulator flexible hose. Any other repair option, as practice shows, turns out to be short-lived.

Repair of a microswitch in the geyser starting system

A situation similar to the Oasis with dead batteries also happens with the Neva gas water heater. When you try to start the Neva, the indicator board lights up, but the gas burner does not ignite. Sometimes the column can be turned on 4-5 times.

In this situation, repair of the microswitch is required due to premature wear of the part or improper adjustment of the unit.

The switch is located next to the water pressure control unit. When the column starts, the membrane on the block pushes out the rod, which unlocks the switch contact. Unlike the Oasis, all parts of the unit, including the rod, are made of brass, so there is no corrosion; the microswitch itself must be repaired and replaced.

To perform repair work, you need to disconnect the connector, unscrew two M3 screws and remove the switch housing from the strip, as in the video

Replacing the microphone is easy. You can buy an original part for 400-500 rubles. in a specialized salon or purchase an analogue for 50 rubles. in any radio parts store. There is no difference for repairs; in both cases they will sell a part from Chinese consumer goods.

In order to carry out repairs, you will need to unsolder two wires with a connector from the switch legs, put on heat shrink tube and solder to the contacts of the new part.

At the final stage of repair, the switch is screwed onto the mounting strip on the block. Next, you need to adjust the position of the microswitch body so that the rod completely releases the contact when moving. This is done using mounting screws. One of the screws bends with a radius; accordingly, by rotating it, you can move the switch body in the desired direction.

Repair of the Junkers geyser

The advantage of domestic geysers is their high resistance to overloads and low quality water, and primarily gas. Experts say that German equipment traditionally shows long service life without repair, but under one condition - the system must be protected from power surges in the network and equipped with protective filter elements that soften the hardness of the heated water.

But even in such conditions it is necessary to periodically perform minor repairs DIY gas water heater Junkers. The reason is simple: automation, ignition and ignition devices turn out to be very sensitive to dirt, dust and rust in household gas. On the dirty gas fuel The igniter is the first to fail.

To restore the column, you will need to remove the cover and pull out by hand the thin profiled aluminum tube that ensures operation in standby mode. The tube is carefully cleaned copper wire and washed with alcohol. Due to the high content of iron pentacarbonyl in the gas, fine metal dust falls on the walls of the gas pipeline, killing the spark plugs and igniter.

Filters practically do not retain pentacarbonyl, so craftsmen often replace the aluminum tube with a copper one of larger diameter. The new gas pipeline is wrapped around a heat exchanger, which ensures the decomposition of carbonyl in the pipe before entering the ignition zone.

In addition, dirty gas requires regular opening and cleaning. gas burner columns.

Repair of heat exchangers of geysers

One of the most severe cases of column damage is considered to be burnout, fracture or through corrosion of the copper heat exchanger. In the first two cases, repairs are performed only by replacing the part with a new spare part. In the case of through corrosion, thin, 02.-0.5 mm holes are formed on the walls of the heat exchanger, through which water flows out of the circuit.

A defect, as a rule, is detected by intense soot formation, water leakage and a drop in pressure in the circuit when the tap is closed.

To repair the heat exchanger, you will need to remove it from the geyser mount. Next, the copper surface is cleaned of layers of soot and scale and subjected to a hydraulic test.

The easiest way is to identify the location of corrosion by pumping air or water under overpressure. For example, the output of the heat exchanger is plugged with a rubber plug, and at the inlet hand pump air pressure is supplied. The geyser heat exchanger is immersed in a container of water and the location of the damage is determined.

You can repair the damage at home by soldering with copper-silver tin solder. The first is used to restore the hottest spots located close to the flame front. To seal with tin, the copper surface is etched with a solution of zinc in hydrochloric acid, heat it with a torch and tin it with a massive piece of solder. For normal operation the thickness of the tin patch should be at least 0.5-0.7 mm.

After repair, the heat exchanger is checked twice more - using traditional air injection and holding it under operating water pressure after installing the unit on a gas water heater. The pressure in the circuit should not drop for at least 15 minutes.

Bosch geyser repair

Water heating gas appliances produced by Bosch differ compact size and a huge saturation of automation. The more components and mechanisms there are in the design, the greater the likelihood of failure.

Bosch WR10 water heating systems are characterized by two types of breakdowns - random shutdown after a successful start and leaking seals due to high water hardness.

Arbitrary shutdown can occur for three reasons:

• Loss of draft in the chimney;
• The ignition electrode is dirty, as a result of which the automation does not recognize the very small ionization current and turns off the gas supply. Repair comes down to regular cleaning of the electrodes;
• Triggering of the heat exchanger overheating sensor.

The last case is the most relevant. The overheating sensor is a bimetallic plate with contacts. When a certain temperature is reached, the plate bends and opens the contacts.

To restore it, you first need to check the operation of the sensor, for example, short-circuit the contacts directly with a paper clip or copper wire. If the gas water heater continues to operate normally, then you need to buy and replace the sensor. Severe overheating means that the gas flow regulator will need to be adjusted and tested.

Let’s say right away that repairing a geyser, like any other gas equipment, is a matter exclusively for professionals. But, although repairing speakers with your own hands is not allowed, knowledge is never superfluous. The ability to determine on your own what exactly is broken, what this breakdown threatens, and what the repair could cost will not hurt anyone. What kind of breakdowns of geysers happen, and what “symptoms” are they accompanied by?

How does a gas water heater work?

To begin with, before getting acquainted with the basics of fault diagnosis, it is useful to find out how the gas water heater is designed; repairs will largely depend on the device. We will not delve into the intricacies of the design of many speaker models; we will limit ourselves to just getting acquainted with the general principles.

Centralized hot water supply appeared relatively recently by historical standards. The issue of heating water at home has been resolved different ways, but the most common one we had was a storage solid fuel heater - the so-called titanium. Titanium was heated with coal, less often with wood or fuel oil. The water in the boiler had to be heated in advance. So it took at least an hour to take a bath. Of course, using such a device was very inconvenient. The problem of quickly heating water was solved in geysers.

The operation of the column is accompanied by popping noises

Possible reasons are as follows:

• The gas pressure is too strong, the burner ignites too actively, causing the flame to fail.
• The gas pressure is too weak, air gets inside the burner, which is accompanied by a micro-explosion.

The burner needs cleaning and adjustment. In principle, nothing complicated, but you don’t need to take on this work yourself; repairs to the geyser should be carried out by a specialist.

Low water temperature

Insufficient water heating may be due to low power columns. Do not open the hot tap in the bathtub, sink and kitchen at the same time, or buy a more powerful unit.

Another possible reason the burner may be clogged, as indicated by yellow flame. Call a gas technician, a specialist will solve this problem in an hour.

When you turn on the speaker you smell gas

This is already serious and threatens with the most dire consequences. Immediately turn off the column, turn off the gas supply valve, ensure constant ventilation in the room, call the emergency service (104) and wait for the brigade to arrive.

In conclusion, once again I would like to remind you about safety. Do not attempt to disassemble, clean or repair gas equipment yourself. This work is for qualified professionals only.

A geyser can be classified as a structurally complex water heating device, which, if the operating rules are strictly followed, can last for decades without breakdown. But as you know, nothing is eternal, and even such reliable device, may break. First of all, this is due to the discrepancy in the quality of water and gas supplied by utilities to the house.

If you follow safety regulations, then any malfunction of gas equipment must be repaired by the appropriate services or certified specialists. But I would like to note that there are some typical geyser breakdowns that the homeowner can fix with his own hands, without waiting for a technician to arrive.

Design features of the geyser

Before learning how to properly diagnose various malfunctions geyser for further elimination with your own hands, It is advisable to familiarize yourself with the design of such a water heating device. Naturally, familiarize yourself with the design of all models gas units for heating water is impossible, but you need to know the general principles of the column design.

Centralized supply hot water appeared in residential premises not so long ago. At the same time, the problem of heating water in private houses and apartment buildings was solved different methods, the most common of which was heater accumulative principle actions, running on solid fuel.

Heating of water in such boilers had to occur in advance, since in order to it took from 60 to 90 minutes to take a bath or shower. Naturally, this made the use of such devices very inconvenient and impractical. Therefore, to solve the problem of quickly heating water, a gas water heater was developed.

The principle of operation of geysers is to heat the water coming from the water supply due to the combustion of gas. Wherein to speed up as much as possible this process The water heating device is equipped with a heat exchanger, distributing the water flow through thin tubes located directly above the burner. Thanks to this, it was possible to quickly warm up the water directly during its use.

This design of a geyser is the basis of most such water heating devices. All other design additions serve to ignite gas and set temperature parameters, as well as ensuring the protection and safety of the device. Moreover, if we consider the ignition of the column, then it differs in its operating principle.

• Ignition using an igniter involves constantly maintaining a small source of open fire. In turn, the igniter itself is ignited either with a match or with a piezoelectric element built into the column.
• Piezo ignition system without using an igniter.
• Electronic ignition unit geyser, powered by alternating current.

If we talk about the security system, then in most cases it is mechanical. Even the most modern geyser, stuffed with various electronic components, has the simplest protection, mechanically connected to the membrane and the water intake device, as well as gas valve. The gas valve opens only when there is sufficient water pressure on the membrane. Simply put, there is no water, the gas does not burn - the water is turned on, the burner lights up.

Gas water heater won't ignite

One of the most common problems with a geyser not igniting is a lack of draft due to clogged ventilation wells. It is possible that there was a foreign object in the chimney or that it became clogged with soot during the process. long-term operation. In this case, the protection system is activated and, as a result, the gas supply is cut off.

To repair a fault with your own hands, you need to check the draft in the exhaust gas pipe. For this a lit match is brought to the exhaust well and if the chimney is working properly, the flame is diverted to the side. If the flame does not start, you need to check the well and remove dirt or foreign objects and everything will work without contacting specialists.

Another problem in which there is no ignition of the column is the banal lack of power, naturally, if we are talking about units with automatic system battery-powered ignition devices, such as Electrolux products. At the same time, despite all the assurances from manufacturers that the batteries should last for a year, they should be replaced much more often. To repair you need to do the following:

• check the operation of the button, power on gas appliance;
• banal replacement of the power source (battery).

Also, problems with ignition in a gas water heater may be due to the lack of sufficient water pressure. Checking the water pressure yourself is also not a problem. You just need to open the tap and visually assess the water pressure. And if a problem is discovered, the pipeline needs to be repaired.

If it is discovered that cold water is supplied under high pressure, then the problem must be looked for in the water unit gas water heater. Common reasons for decreased hot water pressure are clogged filters or a deformed membrane. To fix the problem, you need to do the following:

• first you need to inquire about the lack of cold water pressure from utility services;
• check and, if necessary, wash or replace the filters yourself;
• descale the gas appliance, but such preventive measures It is better to entrust it to specialists;
• replace the deformed membrane.

You can often encounter a problem when a gas water heater catches fire and immediately goes out. This often occurs due to improper adjustment of the water supply. To repair a breakdown, the water supply is reduced, which you can do yourself.

When the device is turned on, a characteristic pop is heard

A micro-explosion or pop that appears when the gas water heater is turned on may appear due to a lack of draft in the ventilation system. If this device is equipped with an electric ignition, the cause may be a dead battery. The problem may also be accompanied by clogged jets or other structural elements appliance or due to excessive gas inflow. In this case, to fix the problem you need to perform the following manipulations:

• cleaning the chimney yourself or calling a stove technician;
• replacing batteries;
• all other breakdowns must be corrected by a specialist called from the gas service.

It is important to remember that when the gas water heater is turned on, there should be no foreign odors, especially gas. If you detect a smell, you must immediately turn off the gas supply valve, open the doors and windows in the apartment and call the gas service. But under no circumstances should you try to fix the problem yourself.

No gas supply

When you turn on the speaker you can always hear characteristic sound ignition of gas, which indicates the operation of the water heating device. If you don’t hear anything when you turn on the device, then perhaps the gas is not entering the column. To solve the problem, you need to check whether there is gas at all. To do this, you can light the burner gas stove or call the utility company for the possibility of carrying out scheduled repairs. If there is gas in the house, but the heater does not light, you need to seek help from specialists.

Gas water heater leaking

If an old gas water heater is used in the house, it can often leak. In this case, to repair the water heater, it is advisable to replace the entire radiator. However the cost of such a spare part can reach 30% of the price of the speaker. Therefore, it is advisable to solder the damaged area yourself.

Most often, holes are found on the tube located with outside heat exchanger. If the location of the damage is identified, the first step is to take certain measures.

1. Water is draining from the radiator by opening the tap in the sink or bathtub and unscrewing union nut on the pipe of the column supplying cold water.
2. Due to the fact that in most cases the column is installed above the taps in the house, then water from the water heater radiator will drain by gravity.
3. To eliminate remaining liquid use a compressor or household vacuum cleaner.

Typically, the soldering procedure itself should not cause problems. The first step is to clean the place where damage is found using sandpaper and treat with solvent. Tinning is done with any available solder using a powerful soldering iron. Rosin is used as a flux.

After coating thin layer Solder the damaged area and increase it to 2 mm thickness. Then it executes visual inspection pipe along the entire length. If green formations are detected, you can be sure that a new hole will soon appear in this place, so this section of the tube is also soldered.

The gas heater is on, but the water does not heat up

Several reasons may precede the release of slightly warm water from the column. First of all, the device may have insufficient power. To make sure of this, you must carefully study the documentation for the device.

In addition, insufficient heating of water can occur due to banal clogging of the unit, which will be indicated by color of gas combustion and the appearance of soot under the water heater. Also, the water temperature may not warm up to the specified parameters due to low pressure gas To repair the problem you need to do the following:

• adjust the hot water tap;
• clean the unit yourself;
• contact a specialist.

Typical geyser breakdowns, which occur most often and can be fixed with your own hands, were discussed above. But if the homeowner does not have confidence in his abilities, then it is better to entrust everything to specialists.

When performing adjustment or repair work on a gas water heater with your own hands, you need to pay due attention to this process, otherwise it can lead to irreversible consequences. Therefore, before you disassemble a gas water heater yourself, you need to be sure that the gas pipeline or other important components will not be damaged, which could lead to a gas explosion.

2016-11-13 Evgeniy Fomenko

To understand in detail how to repair a gas water heater with your own hands, we will consider the most common breakdowns, their causes and solutions.

All repair work must be performed with the gas valve closed (read how to repair an Oasis gas water heater), even if you do not plan to disassemble the gas part. There is a chance that you accidentally unscrew the wrong nut and gas will begin to escape.

Scale on heat exchanger pipes

The heat exchanger consists of a casing and pipes into which cold water flows and is heated. In any case, over time, a small layer of scale appears inside. The main reasons for its occurrence are high water hardness and operation of the water heater at temperatures above 80 degrees.

You can determine that the pipes of the dispenser are clogged with scale by the fact that cold water from the tap flows actively, and hot water from the dispenser flows in a thin stream.

You can repair the column without removing the heat exchanger. The gas is turned off and the water valve is closed. You need to remove the casing from the device and drain the water. To do this, unscrew the union nut from the water inlet to the water heater and turn on the tap located lowest in the system, usually a tap in the bathroom. Termaxi geysers have a special tap for draining water from the system. In this case, it is easier to drain the water into a substitute container.

After this, the nuts at the inlet and outlet of the heat exchanger are unscrewed and a special anti-scale liquid, which can be bought at hardware stores, is poured into it through a hose. You can also use a solution with vinegar or citric acid.

The column is left in this form for several hours. Then everything is connected back and the water valve is turned on. You need to slowly turn on the hot water tap. Dirty liquid should flow out. If after this the pressure increases, then the heat exchanger pipes have been cleaned. If necessary, you can repeat the entire cleaning procedure several times.

In order to avoid this breakdown, you need to use the water heater at temperatures of about 40-50 degrees. You can also install a filter at the inlet, which will purify the water from salts, which form scale.

Radiator clogged

The heat exchanger radiator consists of pipes and metal plates located close to each other. The plates are in direct contact with the flame, so soot accumulates on them over time.

You can determine that this is a problem by the following indicators:

• Yellow color of flame.
• The fire tends not upward, but to the side, heating the body.
• When operating at full power, the water heats up slightly.
• Soot is pouring out from under the column.

In order to clean it, you need to remove the heat exchanger. To do this, remove the casing and unscrew all the elements that hold it. During disassembly, cover the burner with a rag to prevent soot from getting into it.

After removal, the knot is carried to the bathroom and washed there. It is best to leave it in a container with high sides for several hours to allow the soot to soften. Next, the space between the fins of the heat exchanger is cleaned under running water using a long bristle brush and detergents. At the end, drying and installation is carried out in the reverse order.

Leaking pipes

If water begins to drip from the column, perhaps the reason is that fistulas have formed on copper pipes. In order to find the location of the leak, you need to carefully inspect the heat exchanger with the water turned off. Some fistulas are easy to find; you will see water coming out of these places. Small holes can be seen by the green spots and rust around them.

There are three ways to fix a leak:

1. Place the clamp with rubber gasket. If space allows and the pipe does not fit tightly to the casing, the simplest, fastest and most effective way is to install a metal clamp with a rubber gasket. Despite its simplicity, this method allows you to eliminate the leak without damaging the structure.
2. Solder the fistula. Having previously cleaned and degreased, the leak area is covered with flux. After this, using a powerful soldering iron or torch with gas cylinder the fistula is soldered. In this case, it is necessary to ensure that the solder covers required area pipes with a layer of 1-2 mm.

   If several holes are nearby, it will be effective to solder a piece of copper plate. It is not recommended to solder cheap Chinese heat exchangers. They are usually painted on top to hide the uneven color of copper with impurities. In such columns, the pipes are too thin and will burn through during soldering.

3. Use cold welding. In this case, it is important to carefully look at the instructions and make sure that it can withstand high temperatures. A piece of cold welding is taken out of the packaging and kneaded with gloved hands until it begins to harden. After this, it is applied to the pipe and smoothed until it hardens completely.

After soldering is completed, water is turned on to the water heater to check it. It is advisable to additionally clean and solder all areas with a greenish tint. Perhaps, over time, new fistulas will appear there.

A leak can also form due to worn gaskets. If water leaks from the pipe joints, you should simply replace the gaskets there with new ones.

Weak traction

The fact that the thrust is not strong enough can be seen from the following attributes:

• The column lights up and then goes out. This triggers the flue gas sensor.
• The water heater only works when the window is open. If the window is closed, the flame will go out after some time.

To check whether the problem is really weak draft, you should hold a hot match to the chimney. The flame on it should deviate to the side. This is also noticeable in the direction of the flame in the igniter.

There may be several reasons for weak traction:

1. The chimney is clogged. Perhaps a large amount of soot has accumulated in it or a foreign object has fallen into it. In this case, you need to clean it. If you live in apartment building, then the chimney shaft may be clogged much higher. In this case, you should contact utility services.
2. Powerful hood. If an active hood is turned on in parallel in the kitchen, then exhaust gases can be drawn into it, instead of going straight up. Then the exhaust gas sensor will work and turn off the column.
   You should turn off the hood fan while the column is running, or change it to a less powerful one.
3. Insufficient chimney height. If the heater operates in its own home, it is possible that the chimney is not high enough. Its end should rise at least 50 cm above the roof ridge.
4. The chimney is covered on top. Installation is prohibited satellite dishes over chimneys. Also, umbrellas, weather vanes and caps should not be installed too low.

For prevention, you should check the chimney draft yourself once every three months.

The membrane has deteriorated

The membrane is located in the water regulator. When water gets into it, the membrane bends under pressure and puts pressure on the rod, which is connected to the gas fittings and opens the gas. Over time, the membrane may stretch or rupture. If the gas switching system is broken, the water heater will either stop turning on completely, or the flame will be very weak.

New Chinese water-gas systems are installed in the Neva Lux, Oasis and Termaxi water pumps. They are located horizontally, with a gas unit on the left and a water unit on the right.

Also, turbocharged dispensers (for example, Termaxi JSG 20R) and dispensers with a hydraulic turbine are distinguished by a more complicated design. It is also advisable to call specialists to repair them.

If you smell gas, you should immediately turn off the heater, close all gas valves, turn off electrical appliances, open the window and call the gas service.

Below watch 3 videos on repairing a Bosch gas water heater.