Bosch geysers: how to ignite a semi-automatic machine with piezo ignition and turn on the machine, what to do if the wick lights up and immediately goes out, customer reviews


Preparatory work before turning on the Bosch instantaneous water heater

Before turning it on for the first time, you need to remove air from the water heater tubes; this can be done by turning on the hot water tap and waiting for a stable flow of water from the tap; this will be indicated by the absence of any extraneous sounds when the hot water tap is open.

Important! This action can protect the metal parts of the water heater from excessive overheating in places where this is not desirable, namely at the joints of the tubes. You may also have to bleed off excess air in the gas pipes; this is done differently on different water heaters.

This usually happens by pressing the gas supply button or unscrewing the screw from the gas adjustment tube; of course, how to do this on a specific heater is written in the instructions for that same water heater. Also, if the water heater is installed after repair, it is necessary to remove air from the pipes, to do this, open the free valve, or do this using the water heater.

Before turning on, make sure there is draft - this may be the reason why the Bosch gas water heater does not ignite, this is stated in most instructions for instantaneous water heaters, to do this, simply bring a lit match to the window on the control panel and by the behavior of the flame you can understand the presence of air draft: case when the flame deviates towards the window on the control panel, it indicates the presence of sufficient air draft, and this means that the operation of the device will be stable.

For full operation of the device, a large amount of air is needed, since the burner of the water heater consumes a large amount of oxygen, and it takes this oxygen from the room where it is installed, to do this, ensure normal air flow, for this, the door to the room with the instantaneous water heater should not be tightly closed, also in An apartment or house must have a constant supply of fresh air from the atmosphere, otherwise there is a high risk of poisoning by the products of the instantaneous water heater burner.

Important! It is not recommended to use a fan or air conditioner while the instantaneous water heater is operating, as this disrupts the normal removal of gas oxidation products through the collector. It is also not recommended to approach the window while the burner is operating, as there is a risk of burns.

Preparing for work

If you want to start a geyser for the first time or after a long period of inactivity, you need to follow some rules.

Ventilation

It is necessary to ensure a constant flow of fresh air. This is necessary for normal combustion and removal of carbon monoxide residues from the room. There is usually a gap of a few centimeters under the kitchen door specifically for ventilation. For safety reasons, bridging this gap is not recommended. This is especially true for those houses where modern sealed windows without a supply valve are installed.

If the column is located in the bathroom, the door cannot be completely closed. For air circulation, it must remain open at least 3-5 cm. You can use a child door lock.

Traction test

Check the quality of draft in the chimney. This is necessary to remove combustion products (gases) from the kitchen. This is easy to do: you need to hold a thin strip of paper or napkin to the chimney outlet window. If the draft is good, the sheet of paper will be inclined towards the hood.

READ How to Disassemble a Bosch Grinder

The flame is deflected towards the chimney. This means the traction is good

Lack of traction is a problem that needs to be solved. We need to check the passage is blocked. To do this you need to look into the inspection hatch. It is located in the chimney of the column up to the point of its connection with the building. Many, unfortunately, close the hatch for decorative purposes. There is no other way to check and clean the chimney, so the hatch must be open.

Most often, the problem is solved immediately: all the dirt, dust clouds, and fragments of bricks falling from the pipe accumulate in this place. Then, using a mirror or phone with a camera and a flashlight, you need to check for congestion in the upward direction.

Sometimes the following situation arises: the passage is clear, but there is no traction. There may be an airlock. A certain amount of cold air accumulated at the bottom and clogged the pipe. You need to warm the air. To do this, you can burn something right in the hatch or isolate the place using AL-KO (tourist match).

Gas leak test

After turning off the column, unscrew (open) the valve on the gas pipe. There should be no smell of gas coming from the device or any connection. To be safe, you can use soapy water on taps and at intersections. If there is a leak, the foam will bubble quickly. If a problem is found, contact your gas supply company to have it fixed.

If there are soap bubbles, gas will flow

When is adjustment needed?

It is necessary to configure the operation of the column after purchasing and installing the equipment, so that the performance of the device and gas consumption for heating water are optimal for a specific model. In addition, adjustment is carried out in situations where previously established settings are lost, for example, if the equipment was handled carelessly.

How to light a bosch Therm 4000 O WR 10/13/15 -2 P gas water heater.

The difference between these models is the amount of water heated per minute. A device equipped with piezo ignition is designated by the letter P at the end of the name. It has the ability to regulate two parameters, water and combustion power. To turn on the column, you need to move the slider to the ignition position and press it down.

Press the piezo ignition button several times until a flame appears on the pilot burner. Wait ten seconds, release the slider and move it to the desired power position. Moving the slider to the right increases the power and to the left decreases it. The column is in standby mode all the time; if you need to get hot water, you just need to open the hot water valve.

When you need to turn it off, move the slider all the way to the left. After a couple of seconds, the pilot flame will go out. Turn off the gas valve and water taps.

Watch the video below for instructions on how to turn it on:

A simple ignition method: how to turn on a Bosch gas water heater

Using modern geysers usually does not cause difficulties

When purchasing speakers, you should pay attention to the presence of a passport and warranty for the product

It is also very important that the seller provides instructions for its use along with the speaker.

How to light up a Bosch speaker:

Move the control to the right if it is in the “Off” position. The regulator should move to the “Piezo ignition” position. This means the spark icon and vertical buttons will connect. The start button should be pressed down with your finger while pressing the piezo power button

The fact that the piezoelectric element has triggered will be indicated by characteristic clicks. It is important to ensure that the flame does not go out for the first ten seconds. Then you can transfer the power to the desired level.

After the power is switched to the desired value, the flame constantly burns in the mode that was set. But when you turn on the hot water, the column starts automatically heating the water. It’s easy to turn off the column – you just need to move the slider all the way.

Rules for turning on a Bosch geyser

When working with geysers, be sure to follow safety precautions; they are written in the instructions for the water heater. It is important to remember that the heater uses natural gas, and therefore, before putting the instantaneous water heater into operation, you should make sure that the design is reliable, as well as the tightness of the connections of the gas and water hoses. Also, before commissioning, it is necessary to check all heat exchanger hoses for defects from the factory, that is, any leaks or dents.

Make sure that the heat exchanger and burner structure itself is correctly secured. And be sure to make sure that all protection sensors are fully connected, since without them the speaker simply will not start working. Also make sure that all fasteners are in place. This cannot be done because there is a possible risk of some kind of defect at the factory, and simply in order to make the operation of the column as safe as possible.

When working with water heaters with electric ignition, observe the following precautions when using the provided battery cells:

  • It is very important not to throw away batteries with a low charge that can be considered used with household waste. Batteries must be disposed of at special collection points.
  • For stable operation of the device, use only new batteries, always of high quality.
  • It is not allowed to change the type of batteries provided by the manufacturer; this is also necessary for stable operation of the device.

How to turn on a Bosch gas water heater with different types of ignition from the company

The fact is that speakers have different ignition methods, there are three in total. To determine the ignition type of a specific column, you can use the instructions; the instructions will contain the name of the column; you can determine the type by the indices at the end of the column name:

  • Index P: indicates that the column has piezo ignition.
  • Index B: indicates that the instantaneous water heater belongs to the class of water heaters with electric ignition.
  • Index G: columns with this letter at the end of the name refer to the type of ignition with a hydraulic turbine, in which activation occurs automatically from water pressure.

Important! All of these types have certain nuances when introduced into work.

Piezoelectric ignition

This type of inclusion of instantaneous water heater from Bosch is used in several models: WR 10-2P, WR 13-2P, WR 15-2P, as well as in the W 10-2P column. In most cases, these models have similar ignition patterns. This type of ignition is semi-automatic

To turn on the column for the first time and further debugging, first remove the metal protective casing from the column. After this procedure, check the pilot flame length setting, and also check the air gap between the nozzle and the pilot tube, it should be sufficient for the pilot flame to burn.

To ignite the device, move the slider on the control panel to the ignition position, usually this is the central position. Next, you need to make sure there is gas supply. Press the button on the slider of the control panel, at the same time press the piezoelectric ignition button, which is located just below the slider and the control panel itself, as a rule, one press of the piezoelectric ignition button is enough to ignite the pilot flame, but you should still make sure that the igniter is working, otherwise, repeat pressing the button until the pilot flame turns on. Next, you need to release the button on the control panel slider; the flame, of course, should not go out.

The next step is to set the maximum temperature: to do this, move the slider to the maximum power position, that is, to the right, turn the temperature regulator to the maximum position, and open the hot water tap, the instantaneous water heater should start working. Next, it is necessary to check the gas pressure; if the gas pressure is higher than necessary, the temperature of the combustion products will be higher than normal, which may cause unstable operation. If necessary, make adjustments.

Electric ignition

This type of ignition is used on models with an index at the end of the name: B.

Important! You can clarify the type of ignition of a particular model using the instructions. This type of ignition is used in Bosch instantaneous water heaters: W 10 KB, WR 15-2 B, WR 10-2 B, as well as in the WR 13-2B water heater.

To begin, install two R20 batteries with a power of 1.5V into the battery compartment, usually they come with the water heater, the batteries are installed with positive contacts on the same sides, the positive contacts should face the latch of the battery compartment cover. Also, the instantaneous water heater of these models has a battery charge sensor; when the battery charge is low, the LED on the control panel will glow red, and when the battery charge is sufficient, it will glow green. If the charge is insufficient, the batteries should be replaced.

Before putting the instantaneous water heater into operation, make sure that the gas used to operate the device matches the gas required for operation. Of course, open the gas valve, as well as the cold water valve.

To turn it on, press the power button located on the control panel. The device is in standby mode, now it is enough to turn on hot water to start operating the device. Next, make the necessary adjustment of the water temperature using the regulators. If the device is unstable and constantly turns off, then the problem is most likely a poor gas pressure setting, but such troubleshooting should be carried out by certified specialists.

Hydro turbine

Installed in models: WRD 13-2 G, WRD 10-2 G, WRD 15-2 G.

Important! As with the electric type of ignition, igniting a Bosch dispenser with a hydraulic turbine is very simple; it works from water pressure and does not require the installation of any additional tools, generally in automatic mode. it should also go out automatically.

Bosch geyser device

Most consumers, when purchasing water heaters, do not even have an idea about how a Bosch geyser works. The structure inside the unit, made in Germany, consists of a housing, a mounting hole, an inspection window, a water pressure regulator, a fitting for a gas hose, a chimney section of pipe, a draft sensor equipped with a protective manifold, a firebox, piezo ignition and a water unit.

If we consider the operation of a gas water heater, for example, with piezo ignition, then it is incredibly simple and elementary to operate. In order to start using such a column, you must first set the water temperature regulator to the “On” position and only then press the button. It stays at the thermostat until the column turns on. It is also used to select the desired water temperature.

If we consider the specifics of the operation of a gas water heater with automated ignition, then in this case it is even easier to use. If you purchased this particular Bosch gas water heater, how do you light it? This is quite easy to understand. To do this, you need to open the hot water tap, which is located on the mixer. After which the device will turn on on its own.

Common causes of unstable operation of Bosch speakers

If your Bosch gas heater does not light up, you can try to solve the problem yourself. You can find out why the speaker is unstable very easily.

Doesn't light up

The reason may be insufficient water pressure; to do this, clean all filters or check the pressure in the main line, in which case install an additional pump.

The pilot flame goes out

It is necessary to check the safety sensors, if necessary, connect them, or replace them.

Goes off when mixing

The mixer filter may be clogged; if so, clean it. Also, the flow of cold water can simply reduce the pressure of hot water; to do this, you need to set the appropriate temperature of the hot water on the column.

Goes off during operation

It may be a matter of insufficient draft, solve the problem with oxygen access to the burner, and also seal the burner manifold.

Possible other reasons

The main reasons why a Bosch dispenser does not ignite is due to incorrect gas pressure settings. To do this, you need to make the necessary adjustments, and then the burner will burn stably.

Tips and tricks for caring for a Bosch geyser

For stable operation of the column, it makes sense to install a filter on cold water, this will prevent wear of the membranes and clogging of the heat exchanger. Also, constantly clean the combustion product collector and heat exchanger.

Important! And the most important thing: use the column in normal operating modes. The Bosch column may not ignite due to various blockages that should be prevented

Many apartments and residential buildings today use gas equipment to heat water. It makes it possible to get running water at a comfortable temperature at any time of the year. However, the prevailing stereotype that “gas water heaters in the house is unsafe” protects a large number of consumers from purchasing HPG. But this is just a prejudice, and modern units have a high level of reliability and safety, and if used correctly, pose absolutely no danger to households.

Therm 4000 S WTD 12/15/18 AM E23/31.

Before starting, you must make sure that, on the plate installed on the device by the manufacturer, the gas marking corresponds to the gas connected to the device. The device has the ability to connect a remote control panel, which completely duplicates the operation of the display on the column.

Open the gas valve and water valves. Connect the device to the power supply.

The water temperature set by the manufacturer is 42 degrees, this is the optimal temperature.

To turn on the device, you just need to press the turn on button and open the hot water tap. To regulate the temperature, you need to press the “+” or “-” button and select the temperature you need. Until your selected temperature is reached, the display will flash.

If it does not reach this value within thirty seconds, a water tap icon is displayed on the monitor, which indicates the need to increase or decrease water flow. If you press the P button, the programmed constant temperature of 42 degrees will appear. Setting the minimum temperature reduces energy consumption and makes it possible to reduce the formation of limescale in the heat exchanger.

But if you know how to turn on the column, but are faced with malfunctions (the flame goes out, does not ignite), then read this article, which describes the reasons and methods for eliminating them.

How to light a gas water heater: ignition methods

Many consumers are confident that using geysers at home is life-threatening, as a gas leak may occur or the water heater may explode. Previously, old-style speakers were installed in homes, which could fail if the owners ignored safety precautions when using them. Modern geysers are a new type of device that has automatic protection.

If the column fails for one reason or another, then automatic protection ensures that the gas stops flowing.

You should not use outdated models of geysers - they require an extremely careful and careful approach, which will make its use extremely inconvenient. In order to ignite an old-style column, you must use manual ignition. Modern devices turn on and work automatically in most cases.

Methods for turning on units:

  • Manual ignition. It is mainly suitable for igniting older models. Earlier to light the column. It was necessary to use matches to light the wick. First, it was necessary to open the water supply, which was connected to the column. Then open the main valve, and then make sure that gas is supplied to the ignition wick. The pilot wick continued to burn even in the absence of water pressure. The speaker had to be turned off manually. At home, using speakers of this type is not advisable.
  • Piezo ignition. In many types of speakers this element is installed. When you press the button, the wick in the combustion chamber ignites. The ignition wick ignites due to the mechanical force causing a spark. To turn on the main burner, it is necessary to activate the main regulator, which supplies gas.
  • Automation. Modern modifications involve automatic ignition of the wick and main burner. The turbine is responsible for this; it turns on due to the water pressure. The only problem with the operation of such a column may be insufficient water pressure.

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When installing modern speakers, you can be sure that they are safe to use. In order to use them you do not need special knowledge and skills. But if the column breaks down, you need to contact the gas service directly. Repairing speakers yourself is strictly prohibited.

Installation and connection

The choice of this type of device must be taken extremely seriously, since placing such a device in a home in the kitchen of which there is no chimney duct (this should not be confused with a ventilation duct) is prohibited according to the standards. The best way out of this situation is to purchase a product with a closed combustion chamber. A similar device like a chimney uses a coaxial pipe that will be led through the wall directly to the street. The specialist designing the circuit should warn about such a solution to the problem. The installation location of the product is usually determined by an existing and approved project, so those who want to have a high-quality water heater in their kitchen should be clearly familiar with the rules for locating the unit in a residential building.

Such products can only be placed in the kitchen or in any other non-residential space, with the exception of the bathroom, since according to updated standards, the presence of this type of device is not allowed in it. To connect the outlet needed to remove the remaining burnt fuel from the device and to enter the chimney, which is located in the wall, you can choose a steel pipe with a wall thickness of 1 mm. Its diameter is from 1.2 cm. The use of a pipe made of aluminum sheet or corrugated type is not recommended. The section of such a pipe when exiting the product should have parameters of approximately 30–50 cm.

The device is installed at such a height that children cannot reach it, but adults should be able to easily reach all available controls. The distance from the wall closest to the device is at least 0.15 m. There should also be no obstacles in front of the product itself at a distance of 0.6 m. The pipe, which is intended for the removal of fuel combustion products, should only go to the chimney, if it is a separate building, or to a special chimney channel, which is usually built into the walls. Connecting the product to ventilation is strictly prohibited, since combustion products can enter the neighbors’ home, which is not very good.

Good chimney draft is the main condition, which is confirmed by documents. They state that the traction force is in full compliance with the necessary standards. The room where the device is located must be well ventilated; for example, you can install a window with an opening window.

A good solution is to mount the purchased device on the wall according to an existing special design and connect only the water supply hose to the unit’s branch pipe. Only an experienced specialist should connect the product to a gas hose and carry out other work with flammable fuel.

The procedure for installing the device is not original. Where the device is mounted on the wall, you need to make markings for future fasteners. The entire height of the fastenings is calculated so that the chimney pipe that exits the device vertically has parameters of at least 30 cm. The pipe to the chimney is installed at a predetermined angle. Its parameters can be calculated using the installation diagram.

After determining the hanging height of the device, you need to take the following steps:

  • measure how many centimeters are between the fasteners on the product, transfer these parameters to the wall using a level and ruler;
  • make small holes in the wall for dowels or hooks;
  • after installing the hooks, you need to hang the device on them;
  • Next, water hoses are installed, they are screwed to the water heater inlet pipe and to the drain pipe;
  • to check the tightness of the connection, you need to open the taps with cold and hot water;
  • the chimney pipe is secured to the placed unit using a diagram; the use of corrugation is permitted;
  • to connect the gas pipe, you will have to invite a professional who will do it as correctly as possible and give you documents on the registration of the device; at this stage, the connection of the water heating device can be considered complete, the boiler can be started for operation.

Poor pressure

Let's look at what affects the water pressure in a gas water heater:

  1. Presence of blockages. Every pipe through which water moves tends to become clogged with debris. If we take an Electrolux geyser as an example, the blockage occurs in the mesh filter filled with lime and rust. If the water flow is low, the pressure will be minimal.
  2. Engineering works. In this case, scale appears inside the heat exchanger. When the water is shut off and the water unit of the gas water heater resumes operation, a “water hammer” occurs, after which some of the scale penetrates into the mixer and forms a blockage.
  3. Device power. For Bosch geysers and other models, the power of the device is important. It will create good pressure in the system. If the power of the device is less than eight, then the pressure will be minimal. For good operation of the geyser water unit, it is worth purchasing a device with a power of eight to ten kilowatts.
  4. Scale. It usually occurs in metal containers in which water is brought to a boil. In a gas water heater, the heat exchanger is considered a tank. With hard water, scale forms on its walls, which subsequently moves into the tubes, due to which the pressure decreases.
  5. Preventive actions. Any device, including a geyser, needs regular maintenance, namely the prevention of blockages. In most cases, a decrease in water pressure occurs due to careless use of the device.

Prevention of geyser malfunctions

In addition to troubleshooting, you need to know how to properly disassemble a gas water heater. These skills are essential for doing DIY maintenance. Why do you need to know not only the constituent elements, but also the sequence of actions when disassembling the column.


You can perform all maintenance items on a geyser without the help of a technician. The main thing is to follow the sequence of actions and do everything quite carefully

Carrying out periodic preventive maintenance throughout the entire operational life of the gas water heater will contribute to correct operation.

Annual cleaning is recommended in the technical documentation by the manufacturer. After all, it is the lack of cleaning during prolonged use that can lead to all of the above problems.

Characteristics of Bosch WR 10-2P Yandex.Market data

Main characteristics
Water heater typeflow-through
Heating methodgas
Performance10 l/min
Thermal power17.40 kW
Maximum water heating temperature+60 °С
Inlet pressurefrom 0.10 to 12 atm.
Characteristics of gas water heaters
Combustion chamber typeopen
Ignition typepiezo ignition
Modes and functions
Water heater controlmechanical
Heating temperature limitationThere is
Protection systems
Protectionfrom overheating
Characteristics of heating elements and heat exchangers
Heat exchanger materialcopper
Installation and equipment
Installationvertical, bottom connection, mounting method: wall
Dimensions (WxHxD)310x580x220 mm
Weight11 kg
Connecting diameter½ »
Additionally
Life time5475 days
Guarantee period730 days

Bosch speakers - faults and solutions

Bosch water heaters are of good build quality and are guaranteed to last the entire period of operation declared by the manufacturer. Minor malfunctions occur.

Repair and maintenance of Bosch geysers is carried out by specialists and representatives of the service center. The warranty applies for the first 24 months from the moment the boiler is put into operation. During the entire warranty period, service is free of charge.

The manufacturer has the right to refuse warranty repair of Bosch speakers under the following conditions:

  • self-installation of the boiler;
  • violation of operating rules.

Minor faults can be corrected yourself. To identify what kind of repairs a Bosch gas water heater needs, below is a table of common breakdowns and troubleshooting methods:

Deciphering codes and methods for fixing breakdowns
Code What does the signal mean? Correction method
A0 The temperature sensor is damaged. You should check the serviceability of the temperature sensor and the absence of breaks in the power cable ¹

Repairs are carried out by the service department.

A1 The case is overheating. Overheating occurs due to malfunctions of the modulation burner regulator.

New software installation required.

A4 The air temperature sensor is faulty. The serviceability of the temperature sensor is checked and replaced if necessary.¹
A7 The hot water temperature sensor is faulty. Check the serviceability of the temperature sensor.¹
A9 The water heating sensor is not installed correctly.

Insufficient gas pressure.

Violations associated with the installation of the temperature sensor are detected.

The functionality of the gas supply system is checked.¹

C7 The fan does not turn on. Check that the turbine is connected correctly.

The DHW tap opens again.

C.A. There is excessive water consumption. The filter restrictor is faulty and needs to be replaced.
CF

C1

There is no normal traction.

There is not enough oxygen to start the gas water heater.

The chimney is cleaned.

Reset the water heater software by pressing the (Reset) button.

E0 The programmer has failed. Reset settings.
E1 Overheating of hot water. The column is allowed to cool for 15-20 minutes and turned on again.

If the problem persists: contact customer service immediately.

E2 The cold water temperature sensor is faulty. The serviceability of the temperature sensor is checked.¹
E4 There is a leak of combustion products. The water heater is turned off and the gas service is called.
E9 Overheat protection has tripped. Self-repair is not possible.
E.A. The ionization sensor does not detect flames. The power supply of the column and the functionality of the ionization electrodes are checked. ¹

The settings are reset using the (Reset) key.

E.C. The ionization system does not work. The type of gas and pressure are checked.

Eliminate gas leaks, clean the chimney, remove dirt and debris.

E.E. The modulation valve does not operate. Check the connection of the valves to the control unit. Repairs are not carried out independently.
E.F. The column is not ready for use. Repairs are carried out by the service department.
F7 The ionization sensor detects the presence of a flame, although the water heater is not connected to the power supply system. The serviceability of cables and electrodes is checked.

A visual inspection of the chimney is carried out. ¹

Reset the settings to the original ones (Reset).

F9 The solenoid valve is disabled. Check the connection quality of the three terminals on the valve and the control unit.¹
F.A. Gas valve is broken. Contact customer service.
KO The gas valve button has been pressed longer than necessary. The key is pressed.
Noise During operation, the body vibrates and there are extraneous noises. You should call a specialist.

¹Work performed exclusively by service center representatives.

Reviews of Bosch gas water heaters

Review author: Vladimir Shapranov (Kaluga)

Average quality water heater. The first 5 years I worked with flying colors. After this period, I encountered problems: the heat exchanger leaked. Judging by the reviews, such a malfunction happens quite often. Replacing the heat exchanger costs half the price of the column.

Review author: Yuri Tyumen

Among the advantages we can highlight versatility. The dispenser runs on natural and liquefied gas. Disadvantages include sensitivity to the quality of water used. The problem can be solved by regular maintenance and installation of several filters.

Review author: Konstantin Dubrovin

After 3 years of use, I have not identified any shortcomings. The heat exchanger can be removed quickly for washing without any problems. In hard water conditions, there was a layer of scale no more than 1 mm in the pipes. I washed it with anti-scale agent using a shower hose. Everything is working. The column quickly warms up the water.

Design and principle of operation of Bosch speakers

  • Semi-automatic columns - the device contains two burners: main and ignition. The wick burns continuously. When the DHW tap is opened, the igniter ignites the gas on the main burner. The igniter is ignited using a piezoelectric element.
  • Automatic water heaters - turn on independently when you open the hot water tap. The ignition unit produces a spark to the burner device, igniting the gas. Bosch automatic gas water heaters, in turn, are divided into two subgroups:
  • battery operated;
  • using a hydrogen generator to produce sparks.

In addition to being divided according to the principle of ignition, Bosch speakers are divided into two classes according to their internal structure. There are water heaters with a closed (turbo) and open (atmospheric) combustion chamber. Turbocharged ones have built-in fans that force air onto the burner. Atmospheric boilers use natural convection of air masses.

The service life of Bosch speakers is 8-12 years. The service life is affected by the quality of the heated water, compliance with the rules of connection and use established by the manufacturer.

More information about the technical characteristics of water heaters can be found in the table:

Technical characteristics of Bosch geysers

The Bosch concern can be called one of the recognized leaders in the production of high-quality water heating equipment. The excellent reliability of these products is confirmed by their demand and only positive reviews from professionals and buyers from all over the world. A distinctive feature of Bosch products is a set of simplified functions.

The famous brand produces only high-quality products and has been improving them for many decades. The concern is constantly introducing all sorts of technical innovations into its speakers to make them even more popular.

How to light a gas water heater

After all diagnostic procedures, the column can be started.

Manually

The manual method was used in older models. In this case, you will have to light with matches.

Here you need to perform a number of such manipulations:

  • Open the water supply connected to the device;
  • Open the main valve to supply fuel to the igniter;
  • Light a match with matches;
  • Turn on the gas (main) valve.

When lighting for the first time, you need to pay attention to where exactly the flame is located, and next time raise the match to a specific place.

With piezo combustion

We can say that this column is a semi-automatic machine. How to use this type of geyser? It will be enough to press the button to light the wick in the combustion chamber. With the help of mechanical force, the spark is transformed. This ignition filter is enough to ignite. When using this method, you must also meet a number of mandatory requirements:

  • In order to light the main burner, you will need to turn on the main fuel control;
  • The ignition filter will light up when the regulator returns to its original position and the water turns off.

Automatically

The auto-on feature allows for fully advanced modifications that are easy and safe to use even for beginners. A hydropower system is offered by most modern manufacturers (Bosch, its direct competitor Electrolux and many others). The startup process is simplified to the limit.

  1. For example, in the Bosch Therm 6000 O, water pressure drives a turbine. It triggers an automatic fuse system within the unit for both the wick and the main burner.
  2. Manufacturer Bosch has the Therm 2000 O and Therm 4000 O mowing lines, which provide electric ignition from batteries (you will need to keep an eye on their lifespan).
  3. The Bosch AM1E series speaker systems already have a digital control panel that immediately shows all possible switching errors.

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The fully automated process has one drawback: many homes have low water pressure, which may not be enough for the turbine to operate properly. In addition, such devices are much more expensive than their less advanced counterparts.

Therm 4000 S series

The main characteristic feature of these models is the existence of a forced draft fan. Therefore, they can function without a chimney. They are most often used in apartments.

Another characteristic feature of these speakers is the presence of a digital control panel, thanks to which you can find out all the errors and malfunctions of the column. Models are available with three types of power and productivity from 12 to 18 liters per minute.

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Reviews about the model

The Electrolux geyser described above, according to consumers, has many positive features, among them the following should be highlighted:

  • ease of control;
  • the ability to control the operation of the device;
  • electronic ignition;
  • stainless steel burner;
  • impressive burner nozzle diameter;
  • additional microswitch.

As for ease of control, it is ensured by power switches and a regulator, the latter of which is responsible for changing the water heating temperature. These keys are located on the front panel and are easy to find. Consumers consider the copper heat exchanger as additional advantages, as well as INVERTER Control technology, which provides the ability to maintain the heating temperature and smooth adjustment. The microswitch is located on the body and is responsible for turning off the water heater if errors occur during its operation.

Installation of a geyser Oasis

The Chinese manufacturer of water heating equipment Forte Technologie&Produktion supplies Oasis gas water heaters to the Russian market, customer reviews of which are largely positive. A chimney is required for installation since the combustion chamber is open. Electric ignition is powered by batteries, the compartment with which can be moved if condensation from the cold water pipe gets on them. Powered by natural and liquefied fuel.

The “Winter-Summer” operating mode option allows you to use gas economically. The front panel contains flame and temperature controls, a mode switch and a display.

Operational nuances

Consider frequently asked questions when using geysers.

Why does the geyser itself turn on or off?

Spontaneous activation of the column can occur if there is a hot water supply system flowing to the column. Accordingly, solving the plumbing problem also solves the column problem.

This situation occurs much more often: the column continues to work even when the tap is turned off. This happens because the aperture (loses elasticity) that is installed in the water regulator is incorrect. Once the user turns off the hot water, he will not be able to take the desired position; he presses the gas sensor for a while. In this case, only replacing the worn part will help.

If the membrane loses elasticity, the column may not close

Is it possible to turn on cold water when the water heater is on?

Many users are lazy, do not know how or do not want to set convenient settings for your column, and adjust the water temperature by adding cold to it. You can't do this, here's why:

  • This is prohibited in the user manual;
  • When water is mixed, scale forms on the heat exchanger, which ruins it.

Should I turn off my speaker at night?

In older speaker models and those with piezo ignition, the wick is constantly burning. This, on the one hand, is uneconomical, since gas is constantly consumed, and on the other hand, it is potentially dangerous. It's best to turn off those speakers at night and sleep soundly.

A modern gas water heater does not need to be turned off

Modern geysers have an automatic ignition system. A whole set of equipment is responsible for safety:

  • Traction sensor;
  • Flame sensor (monitors its presence);
  • The temperature sensor allows you to keep it up to 90 degrees.

An alarm from any of them will immediately turn off the speaker. This column cannot be disabled. Usually this point is not even written down in the manual.

Open type: how to start a gas water heater

Flow-through geysers installed in residential premises cause a lot of controversy. It should be noted that modern geysers do not pose a danger if you follow all the rules for their use. Everyone who lives in an apartment or house and uses such a column to heat water should know the rules for handling a water heater.

READ How to Connect a Bosch Gas Heater

If the smell of gas appears in the room while the speaker is operating, the device must be turned off immediately.

If there is a large accumulation of gas in the room, it is necessary to open the windows to reduce the gas concentration. It is important to know that if there is gas in the room, turning on electrical appliances and fire is strictly prohibited. If the water heater is not working properly, you should call the gas service.

How to light an open type column:

  • It is strictly forbidden to light a fire if there is no reverse draft in the chimney.
  • Do not turn on the device without understanding the instructions.
  • It is important that the room is equipped with a constant flow of air.
  • You cannot repair or make changes to the operation of the gas water heater yourself.

When lighting, do not touch the front of the panel. When turning on the speaker, it is better to set it to low power. It should be noted that modern models of speakers are equipped with safety devices that stop the operation of the speaker if there is no traction.

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