Make the repair of gas boilers. Manual for repair, maintenance, technical device, configuration, installation of wall gas boilers Ariston (Ariston). Elimination of current mounted gas boiler faults

Copper "Immergaz" failed? Work is blocked, and errors are displayed on the display? Do not worry, so the security system reports the resulting problem. What to do? Look into the instructions and learn code designation. If the instruction is lost or you do not understand the technical language, contact our publication. We have described the errors of Immergaz boilers.

IMMERGAS boiler operation and device

The Italian manufacturer of heating equipment "Immergaz" is focused on all segments of the population. From a wide range you can choose the models of the Economy class or high-tech devices at a high price.

Equipment adapted for use with unstable pressure in the gas highway - up to 3 mbar. The design is equipped with the following nodes and details:

• Gas burner with electric ignition;
• Circulating pump from the company "Grandfos". The technique has proven itself as reliable and quiet;
• Bypass with the regulation system protects the heat exchanger from overheating;
• The generic sensor measures the temperature of the coolant stream;
• Mode "Anti-massation". If the temperature decreases to 4 degrees, the boiler is automatically launched. After that, constant heating is maintained at 40 degrees;
• In stock Outdoor thermostat. It can be connected at will.

The range includes conventional convection models, as well as condensation. The latter differ in high efficiency more than 100%. According to the design there are single-circuit and double-circuit units. Combustion chambers - open and closed type.

Protection against scale. Upon completion of heating, the pump does not stop. About 3 minutes, he pumps cold water through the system, removing the heat load.

Errors and malfunctions

Technique is not insured against breakdowns. If you saw the error code, you can find its value in the table below and the removal path. First of all, it is recommended to restart the boiler to eliminate the system failure. If the characters will be launched again - proceed to repair.

Codes Errors for IMMERGAS EOLO STAR / MINI	What do you mean	How to repair do it yourself
01	No ignition. The boiler is blocked.	The burner is lit automatically. If the ignition does not occur after 10 seconds, remove the lock. To do this, press the RESET key. This happens after long standing equipment. Follow the excess air from the system and run the re-ignition.
02/12	Overheating happened. The thermostat disables the operation. Problems with ignition.	Wait for a decrease in temperature, restart the unit. Spend diagnostics: Thermostat; The flame sensor, ionization, their contacts and location; Replace faulty parts.
03	Received a signal from the combustion product removal sensor.	Look at: Fan, its motor. To do this, dismantle the body of the device. Make sure the fan wiring integrity. Clean the blades from soot and dust; Look at the chimney hole. Spend the mine's cleaning for your side and from the street.
04	Electromechanical contacts are under great resistance.	Make sure that the protective thermostat and pressure sensor are working. Circling the contacts of both elements. If this does not give results, contact a service center to diagnose the electronic board.
05	The NTC temperature sensor in the heating circuit does not function.	Check sensor, wiring, contact suspension.
06	Thermistor NTC hot water fails.
08	Defective unlock key.	Inspect the contacts of the board. Replace the item.
09	Activated setting mode.	Cancel mode if it is not needed.
10	The contour fell pressure to level less than 0.9 bar.	How to fix the problem: Inspect the circuit, all connections and nodes for the presence of leaks. When detecting, seal this place; Turn on the feed, adjust the pump speed. Wait for the pressure gauge testimony to reach 1.3.
Error 11.	Worked the smoke pressure sensor.	Wall-mounted gas boiler can be blocked with insufficient thrust. After that, the restart is automatically turned on. After three shutdowns, the code is issued and the red indicator lights up. Make sure you have thrust. If it is not, clean the smoking mine. Its arrangement must be conducted strictly according to standards.
15	Incorrect configuration (relevant for EOLO STAR / MINI models).	Contact the service center.
16	The fan does not turn on. The chain is torn off.	Fan diagnostics. Repair of the chain, contact suspension, reconnect.
20	Flame problems.	The control module is tested.
27	The circulation of the coolant is broken, as a result the device overheats.	Check: Cranes. Open them until you stop; Encourage system. Fix the excess air; Circulating pump. Unlock its work, clean the impeller from pollution; Filters. Clean them from dirt. When rusting, we overst the filters in citric acid solution; Heat exchanger. Remove the clusters of scale in its tubes. To avoid plaque, install low temperature and water filters.
28	Flow in the DHW circuit. Simultaneous increase in temperature in the heating system and hot water supply.	How to proceed: Make sure that the faucet cranes are correct; Check for pipe leakage and connections.
31	The electronic board is incompatible with the boiler.	Perhaps the name of the model was incorrectly entered.
37	Racing voltage in the network. Fall until 197-175 V.	Connect voltage stabilizer.
Malfunctions Immergas Eolo Mythos
E00	The work is stopped. No flame in the burner.	Inspect the flame electrode and the control board, as well as their wiring. Install the new items when malfunction.
E02	No ignition.	Open the fuel supply valve; Look, whether the gas valve opens; Diagnostics of the module, its connections.
E04	The boiler is blocked for a long time.	Check all nodes and parts.
E12	The signal of the overheating thermostat.	Diagnostics: Thermostat contacts; Fuse on the electronic module.
E18	The temperature is exceeded on the feed line.	Turn on the feed; Inspect the power pump.
E19	High degree heating on the reverse line.
E28 / E29.	Fallen fan or Hall sensor.	Make sure about: Fan and its connections; Fusher F3; The main module.
E31 / E36	Short circuit (KZ) or sensor breaking on the feed line.	Replacing the temperature sensor.
E32 / E37	KZ sensor or break on the return.
E65	The fan does not hit the air.	Replace the Motor of the node if reduced work is observed (less than 900 rpm).

Immergaz problems with automatic unlocking

As soon as you eliminate the cause of the fault, the fee will automatically resume work and heating.

What codes meet:

• b 18 - disruption of the heating of the feed circuit (over 95 ° C). Eliminate the causes of poor coolant circulation (filters, heat exchanger, pump lock);
• b 19 - The level of heating on the return exceeded the mark 90 ° C. See the solution for B 18;
• b 24 / B 30 - Thermistors of feed and returns give different readings. The difference is 10 ° C. Diagnosis of heat exchanger. Cleansing from scale;
• b 25 - rapid increase in degree on the feed line. Fit the contour with water;
• b 26 - pressure decreased. Measure the readings, add the coolant to the contour, adjust the pump operation;
• b 28 / B 29 - Fan does not function. Replace the node when breakdown;
• b 33 / B 38 - KZ, cluster of the thermistor of the DHW. Connect a new part;
• b 65 - the fan is not started for a long time. Diagnosis and replacement.

Another common malfunction is a yellow uneven flame. In this case, clean the burner from soot and dust. Also remove the dirt from the chimney mine - it breaks the craving.

Not all models are equipped with a display. Some give the damage code with the luminescence of indicators. For example, Immergas Nike Star / Mini.

If you fail to remove the breakdown yourself and the symbols are re-displayed on the screen, it is better to call the wizard.

Many of the gas boiler malfunctions can be eliminated by their own hands without resorting to expensive services of the gas service or no less expensive private service and commissioning specialists. The only rule that will immediately declare, you need to understand what you are doing, and for what purpose.

Seasonal service

Seasonal maintenance of the gas boiler is to clean it from pollution and inspection. For access to the elements of the boiler, it is necessary to dismantle the casing or trim. To do this, we are determined with the method of its attachment, different models of boilers can be performed differently. Most often it is a few screws and a few snaps in the top of the casing.

Having access to the inner parts of the boiler, when performing seasonal service, nothing is removed. With the help of a soft brush for metal, toothbrush and fine-grained emery paper, proceed to removal of a car from all parts of the boiler:

• heat exchanger;
• burners;
• flatbed with its availability.

The above-mentioned tool is used where it is convenient, it is not particularly leaving on a metal brush. Further the compressor blow the gathered dust. You can use a rubber tube or a tube from a medical dropper, simply tooth-facing it in it and directing the second end of it in the boiler.

Important! Any work on the boiler is made with a gas crane closed.

Using a thin sequel or durable needle, you need to clean all the holes on the burner and the stall, and then, cleaned them again, for example, toothbrush, blow again. In the presence of overhead sensors of their adjustment to the parts of the boiler, you need to slightly clean the sandpaper, and then wipe the soft woolen cloth.

The ignition electrodes and flame control are well cleaned only with a woolen cloth, without the use of cleaning products. In the presence of submersible temperature sensors, it is necessary to remove them from the sleeves, select the fluid available there, thoroughly clean the sleeve inside, using a small-sized metal rings or the dissipated segment of the steel cable, suitable size. After coarse cleaning, the sleeve is cleaned with a cloth wound on the dump, then fill the sleeve for two thirds with machine oil and the sensor is installed.

After performing these works, the boiler thoroughly vacuuming. In the available places, dust and dirt are cleaned with a wet cloth. We put the trim in place. We check the presence of thrust in the chimney, applying a sheet size with a notebook to the chimney hole, or while putting the stream of smoke into the ignition hole of the repliment, the gas valve on the omission to the boiler should be closed.

We check the places of seals and possible gas leaks by the method of washing. If there are normal traction, a trial start of a boiler is produced, which should be filled with the coolant. In parallel with the performance of work on the cleaning of the boiler, it is carried out its visual inspection on the subject of mechanical damage and leaks of the coolant. On this seasonal service can be considered completed.

Cleaning heat exchanger

It is produced by a solution of hydrochloric acid purchased in the trading network and intended for this purpose. Cleaning is performed for the main heat exchangers of wall gas boilers and hot water cooking heat exchangers. The cross-section of the channels of such heat exchangers is little, because of which they are subject to pollution of salt sediments.

Cleaning the water shirt of floor gas boilers is usually not produced. To perform cleaning, it is necessary to remove the heat exchanger. To do this, remove the housing of the boiler, unscrew the supply tubes to the heat exchanger, pre-drained water from the boiler.

We take out the heat exchanger from the boiler. Rubber gloves should be applied and use plastic container for collecting acted acid. The method is not complicated. Carefully pour an acid solution into the heat exchanger to full filling it. In the event that the heat exchanger is scored, an active allocation of foam will occur. Leave the heat exchanger for 10-15 minutes.

We drain the spent acid into the container and re-fill the heat exchanger with a new portion. We are waiting for the same ten minutes. We drain the solution and rinse the heat exchanger with running water. We dress the hose segment for the nearest water treatment tap and shed heat exchanger with water. Fill out again the heat exchanger with a solution of acid. If there is no active isolation of foam, and when the heat exchanger is the heat exchanger, water is not visible significant resistance to the duct, it means that the heat exchanger is washed, and you can install it in the reverse order.

Cleaning the burner from Nagara

The method of cleaning the burner from Nagara was already described above. However, with a strong Nagar, it is not always possible to cope, using only mechanical cleaning. For such cases, special chemicals are applied. Recommend anything does not make sense, all funds are quite effective. The method of cleaning is reduced to applying a solution in the form of a solution on a cleaned surface, shutter speed for a certain time and then removing the sucking in a car, more often by mechanical manner. In more detail with the method of cleaning in one way or another, you must read when it acquisitions.

In particularly severe cases, for example, when hitting the heat carrier burner, it must be completely removed from the boiler, immersed in cleaning solution for several hours. Then the burner remove, roll in the flame of a portable gas burner. After another application of the solution, using a metal rosh or a brush, remove the balances of the Nagara.

Checking the chimney channel

Checking the smoke channel is performed using a mirror. We introduce the mirror into the channel at a low angle. In the mirror we must see the light at the end of the chimney. When performing this operation, it is convenient to use the so-called self-stick, with a mirror attached on it.

Elimination of flows of water in places of pipeline connection

To eliminate leaks, it is necessary to unpack the connection, clean the thread from the old paneling and paint. Then, using a fum-tape, sealing thread or thread retainer, pack the connection again. Check the quality of work by filling out the pipeline and boiler with water.

Check and eliminate gas leakage

All available gas leak points need to wash with soap solution or a special means to check the gas leakage. The disintegration solution is prepared from the economic soap, which has been preserving it in a container with warm water and stirring up to obtain thick foam. When the gas leak on the foam will be blown soap bubble. You can eliminate leakage in the same way as water leak through threaded connections.

Replacing burner

Replacing the burner of the gas boiler will require more attention and caution. Acquire a new burner follows exactly the same model as installed on your boiler. Never install a burner that is not intended for your boiler model.

Start the same - we remove the casing of the boiler. Having access to the burner, carefully inspect the tube connected to the burner and sensors. Their location should be remembered so that when assembling a new burner, do not confuse which where to connect.

How to remove the gas burner. 1. Fastening the burner to the body of the combustion chamber. 2. Wires of the electrode stamp and flame sensor. 3. Gas-air mixture supply pipe

Due to the large variety of models of boilers, it is impossible to give specific recommendations, but in any case will be attended:

• gas supply tube to burner;
• gas pressure sensor for burner;
• gas valve.

Perhaps the presence of a control tube from the thrust sensor or electrical communication (wires) from the same thrust sensor or temperature sensor. When using the burner of the same model as yours, remember and connect all the wires and the tube will not be complicated.

With the replacement of the roof burner installed in the wood stove, it will cope easier. We unscrew the screws of its mounting to the plate and two tubes: gas supply and gas supply to the stall. I pull out the old burner, we insert a new one, screw the tubes, tighten the burner fastening bolts.

To repair the primitive automation, such a burner is not worth it, the result may entail the unsafe operation of the boiler. The most complex is the replacement of a mounted gas boiler burner, stuffed with electronics and a large number of sensors. But it is not necessary to panic here, the principle is the same: remember the location of all connections to the burner.

Trying to increase their importance, gas specialists say that such a burner must be "tied" to the boiler by the method of firmware of the electronic unit or adjustment of the boiler. The burner is only an iron that cannot be configured in any way. Settings may require burning, as such, but it is no longer relevant to the replacement of the burner itself. If the burner is made under the model of the boiler, which is installed, then the combustion will be correct, though, provided that it was not tried to regulate on the old burner.

Replacing temperature sensor

The need to replace the temperature sensor occurs when the boiler or does not comply with the specific temperature mode of the boiler, or, which is even worse, goes into the boiling mode, which can lead to a water shirt of the boiler or its heat exchanger.

Temperature sensors on the installation method in the boiler can be overhead and submersible. Overhead sensors are installed on the pipes of the boiler on the clips, which pressed the sensor to this pipe. Their replacement is quite simple. Disconnect the old one - we put a new one. The chip (electrical contact) put in place old.

Submersible sensors can be two types: direct immersion and in a sleeve filled with oil. When replacing the first, it is necessary to drain the water from the boiler, unscrew the sensor. Pay attention to how sealing the threads in the location of the sensor was performed. It can only be a conical carving, using a thread retainer (glue), gaskets or sealing rings. Floor seal and other materials are not used. Apply the same seal method, install a new sensor.

When replacing sensors installed in the sleeve, the water from the boiler is not necessary. After releasing the fixing nut, pull out the sensor, check the presence in the oil sleeve, install a new sensor by fixing it with a nut. The simplest version of this sensor is an alcoholic thermometer installed in the sleeve for visual temperature control in the boiler.

Thermostat(TC) - a device that makes the inclusion and shutdown of the boiler in automatic mode. This occurs depending on the air temperature in the room and equipment settings.

Modern boilers are managed by appropriate electronic payments Which are a kind of "brain" of the device, they have a two-contact connector for connecting the thermostat.

By default, the connectory is worth jumperTherefore, the boiler room without connecting the vehicle will work constantly, which significantly reduces the efficiency of the system.

Possible malfunctions of wall gas boilers

Boiler equipment fails as a result of breakdowns of the main nodes and elements.

Faults are divided into groups:

• damage mechanicalparts;
• problems with electricalnodes;
• breakdown of electronic components;
• violation sealingconnections of pipelines and hoses;
• failure settingsboiler room.

Important! People who are not specialists to repair such equipment can only be engaged elementary repair and maintenance of boilersIn other cases, the master is called.

In accordance with the rules, when the smell of gas appears, it follows spin the input valveand call Gas service specialists.The fact is that the breakdown of threaded compounds should be made by special wrench from bronze alloys, which exclude sparking.

Gas leaks are determined when applied soap foam on pipeline connection. Inflating bubbles suggests that the tightness is impaired, it means that the part of the gas does not reach the burner.

Important! Repair of electric gas boiler is allowed to spend independently if available experience of such workOtherwise, the result may lead to sad consequences.

For repair requires use skills electric tester, knowledge of technology soldering, understanding the equipment scheme.

The failure of mechanical elements is eliminated either by their full replacement, or repairing faults, if there is such an opportunity. In many cases, the owner can work alone.

Cleaning pipelines is a simple procedure, so the challenge of the master is not required, but it should be borne in mind that as a result of non-accurant actions, it is possible to damage the design.

If the work disorder happened as a result reset payment parametersresponsible for managing the functioning of the boiler should be restored by them. Permanent failures may indicate malfunction of electronic circuit boards.

Diagnostics

Competent repair involves compliance with a certain sequence of actions:

1. Detection fault. There are obvious and implicit breakdowns. With a ceasepillary boiler, everything is clear, but there may be defects that are difficult to notice immediately or not strongly affect the work of the boiler room.
2. Diagnostics: Search for the reasons that led to breakage. It can be a filter zoom, a violation of the integrity of the wires, the failure of individual nodes.
3. Elimination of reasons.To begin with, it should be determined whether the boiler will be repaired independently, in some cases it can be significantly saved by performing simple manipulations, and sometimes there is a risk to aggravate the situation in the implementation of incorrect actions.

Reference! Should not be disassembled and repairing the boiler when the warranty period for its work is not yet expired. If repairing the equipment does not succeed on their own, the repairmen will refuse to correct the defects.

Unstable burner work that often fades. To maintain the combustion process, the presence of oxygen is necessary, its lack (when boiler operation) is easy to detect if, for example, open windows in the boiler room. The stabilization of burning indicates the need Improve ventilationin the work room.

Perhaps you have to put the supply valves or the door with the ventilation hole.

The insufficient flow of gas in the highway is determined when disconnecting the hose from the boiler. With an open valve must be heard hissand feel the smell of additivesgas mixture.

The pressure may fall as a result of a filter clogging, it should be removed inside grid., and rinse. If the blockage occurred in the gas meter, they will have to cause gas service workers.

Overheating coolant can cause emergency disable equipment. This often happens due to a pump malfunction that accelerates the working fluid throughout the house.

If the air fell into the working chamber of the pump, then to remove it you need to add there coolant.

Sometimes rotor- Pump element, - sticks and stops rotating, can eliminate the malfunction using the disassembly of the housing, the rotor is scrolled manually, if possible, removing the garbage particle in the chamber.

And also should be checked expansion tankwhich modern models of boilers are embedded in the aggregate itself. Pressure in it is checked by a standard car pressure gauge, its value must be 0.2 atm lessthan working pressure in the pipeline.

If necessary, the air is pumped with a manual or electric pump.

You will also be interested:

Materials and repair tools

To identify and correct the breakage of the gas boiler, you will need:

Repair with your own hands

The following problems with a gas boiler are possible.

Breakdown sensor combustion

The sensor turns off the gas supply in the boiler combustion chamber when the flame is attenuation. Determines the flame by its special properties, for example, by The direction of passing current(fire spends it only one way as a diode), or By the magnitude of the current.

Important! Some models of boilers cease to work if turn the plug in the outlet.

Gas boiler combustion sensor may not work as a result clogged gas pipe. Troubleshooting reduces to dismantling and careful cleaning. If the boiler continues to turn off on their own, you will have to call the wizard.

Overheat

Causes of equipment overheating:

• absence fluid circulation;
• recentsystems;
• rubbishin filters.

Clogging pipelines can be defined on hearingDuring the boiler operation, there will be sounds: Clicks or a light knock.

For washing apply special acid-based solutions.

Cleaning the gas boiler heat exchanger is also carried out. Manufacturers recommend asking them Once every two or three years.

Reference! Heat exchangers made of copperalloys are more "delicate", so when working with them, it is impossible to use rigid metal brushes.

And also should check the health of all shut-off cranesinstalled in the system. If necessary, replace.

To remove air from the system: open the cranes and wait for the release of the gas mixture until the water jet is poured.

Fault fan boost

Fault Fan Gas Boiler:

The weakest place of any fan - bearings. It is recommended to periodically lubricate them.

To do this, remove the back of the cooler, pull out the stator and apply lubricant on the bearing surface.

It is better to use heat-resistant types of lubricantsrecommended by the manufacturer of equipment. They can be purchased, for example, in stores engaged in the sale of auto parts.

• Circuit between the turns of the stator Also leads to a malfunction. In some cases, it is possible to fix the part in the workshop, sometimes it is easier to replace it with a new one.

Dynochod malfunctions

Signs of violation of the normal operation of the chimney of the boiler:

• violation traction- It is found when making matches to the viewing boiler window;
• educated education sahi..

There are several possible options for violation of the gas boiler thrust:

There are reasons that greatly worsen cravings, even if the boiler and the chimney are not clogged. For example, near the house appeared Higher objects (This may be buildings or even trees), which impede the normal functioning of the boiler room. In this case, it will have to build a pipe.

And also on the craving can affect powerful extractor Installed in the adjacent room, for example, in the kitchen.

Problems with electrician and control boards

To begin with, external cables suitable for the gas boiler are damage, bends and festers, the presence of them can say that the power supply is violated.

No luminescence indicatorsit is also evidence that nutrition does not go to the equipment board.

Attention! Some manufacturers refuse to implement warranty repairif the boiler was connected to the electrical network without installation of voltage or UPS stabilizer.

Control Board faults cause failuresin the work of boiler equipment or its full shutdown.For repair, you should invite masters, because without knowing the work scheme, it is impossible to make it even its diagnosis.

The cause of a gas boiler malfunction can perform Separate elements (chip, diodes, condensers, resistors) or cleaning a whole node.

Moreover, the replacement of a particular component, it will not be necessary to restore the performance, since the incorrect functioning of the power supply will cause breakage of other boiler boards.

Therefore, replacing individual elements of the gas boiler to new, it is safe to lose time.

Cleaning valve single and two-circuit gas boiler

It is best to clean every two years, Otherwise, subsequently will be problematic to remove sediments of soot and scale.

In advance, breaking the gas supply valve, you should start disassembling the burner removal boiler:

Gas boiler cleaning process:

1. After removing the top cover of the boiler, disconnect the thrust sensor and remove the chimney pipe, you can access heat exchange. It is covered with insulation and casing, they should be removed.
2. From the heat exchanger pull out tubilizers(Swimpers), they are cleaned with a metal brush.
3. The heat exchanger itself is cleaned by homemade blades and scrapers Suitable size and shape.
4. Used as flushing solutions a mixture of citric acid and vinegar.
5. And there are several types of factory facilities, for example, "Antinakipin".
6. Using self-made flushing aggregates Allows you to clean heat exchangers, without disassembled and without removing them. It is best to apply reversible pumps to assemble that allow you to change the flow direction in one, then the other way.

Useful video

Check out the video in which the process of cleaning the gas boiler is shown.

Proper installation - long-term warranty

The installation and maintenance process of gas equipment is regulated:

• SNiP 2.04.08-87 (gas supply).
• SNIP II-35-76 (boiler installations).
• Government Decree of 2008 for NO 549 (Gas Supply Rules for Citizens of the Russian Federation).

Thus, installation, replacement and maintenance of boilers should be made only with participation and control relevant organsSince gas devices are equipped with increased danger.

For unauthorized installation and replacement of boilers, a fine is provided. Communal services may even disable gas supply.

Installation of gas equipment produced with ignoring basic rules will lead, at best, ineffective work, and at worst - to breakdownboiler.

The destruction of the body can occur with an incorrectly made strapping of the device whose power above 50 kW (at low temperatures, it can split).

Installation Voltage stabilizer Decides the problem of breakdowns of the electrical part of the boiler equipment. This should take into account the total power of the plug-in devices, starting currents, whose value about 3 times higher than Workers (this is true for pumps distributing the coolant at home).

Prevention of boiler equipment will help ensure its uninterrupted work during the season. Recommended to conduct it twice a year

Gas boilers today are envious in demand, they differ in high levels of functionality. But at the same time, over time, their performance decreases greatly, and such problems of many users are at a dead end. To avoid unexpected repair, it is necessary to carry out a timely manner of these devices. If you really have difficulties, then you can repair the gas boilers with your own hands. In this article we give ways to eliminate the characteristic faults of such devices.

Gas boiler device

Broke, in fact, can any part of the boiler, because there are plenty of reasons for this. Most often, this is due to the poor-quality assembly of nodes, improper operation and ingestion of extended tanks of foreign objects. Whatever it was, before repairing the gas boiler, disperse in its device. Particular attention is recommended to pay a security group that is responsible for the proper operation of the instruments.

These elements can be attributed to:

• The thrust sensor with a plate, which is designed for 75 degrees. This device follows the work of the chimney of the boiler, it reacts to any failures in the output of combustion products into the chimney and their outlet of the smoke trap.

Important! In the event of faults, the device is heated, begins to work, so many equip it with an additional signaling device of gaspace.

• Protective monostat. It protects boilers from incomplete removal of smoke due to a chimney or heat exchanger.
• Limit thermostat. Responsible for water control in the boiler - as soon as it boats the overheating sensor, immediately turns off the device.
• Electrode ionization. This element controls the presence of a flame. Repair of many models of boilers begins precisely from checking the electrodes, because if the device starts working without flame, it can explode.
• Pressure control valve. The system makes the device drop dangerous surplus when the pressure exceeds the mark of 3 bar.

Important! If any of the listed sensors fails, then the tenants of the house can be implanted with carbon monoxide, lost by the system. As a result of improper operation of the electrode, an explosion may happen.

What should be taken into account when repairing a gas boiler?

Modern boilers belong to rather complex household devices. As we have previously clarified, even a minor malfunction can lead to an explosive situation. Therefore, if you are not sure about your abilities, it is better not to take for repair on your own.

When repairing a gas boiler, the following factors must be taken into account:

• If the room filled with smoke or a clear smell of gas appeared, then you should immediately turn off the device, open all windows and doors.
• To repair the device is quite real, if, for example, it is necessary to replace the broken combustion sensor. It is enough to turn it off from gas supply, then give it to completely cool, check for the presence of thrust, restart.

Important! If you plan to check for thrust, then make sure that it does not stink in the room. Then bring a sheet of paper to the chimney if it won't move, it means there is no traction. In no case do not turn on the boiler, immediately call the master.

• Basically, such devices fail due to heat exchanger clogging. It is easy to solve this problem: to repair the gas boiler heat exchanger with their own hands, you just need to clean it.

Important! If the automation broke, then without a professional there is no need to do.

• When the pipe supplying fuel is clogged, it is enough to disconnect it from the system, clean and rinse it well, then dry and return to the place.
• If the flame is suddenly fading, constantly burning in the standby mode, then you should use the instruction and check the condition of the unit.

Elimination of typical faults in gas boilers

Of course, it is not worth repairing the gas boiler control board with your own hands, because, as we found out, it consists of a large number of items responsible for the safe operation of the device. If problems turned out to be typical, then beware of the case.

Troubleshoot problems according to the instructions:

1. Heat exchanger. This is the weakest and problematic part of the boilers, which is made of copper or stainless steel. It should be brushed from accumulated soot once a year with an ordinary metal brush. Ideal for this, a metal sponge for washing dishes is suitable, as it is more gentle and gentle.
2. Plug fan. Even despite the fact that the fans work on the lowest revs and constant current, they rarely, but break. The most distant places are bearings. If you find that the fan stopped developing the desired number of revolutions, then you first disassemble the boiler, remove its back part, then pull out the stator and lubricate the bearings with machine oil.
3. Chimney. Often it is precisely a coaxial chimney clogging, and the device stops working normally. To resolve the problem, you need to remove it from the system, to carefully clean each detail, then return everything to your place.
4. Valve. Repair the gas valve of the gas boiler does with their own hands is even easier - it is enough just to purchase a new part and replacing it the element failed.

Important! The gas boiler is potentially dangerous equipment, which, with incorrect operation and late elimination of problems, may not behave unpredictable.

When can I do the repair of the gas boiler yourself? Often, problems occur in the process of operation of this equipment - non-compliance with the temperature mode of water heating, a breakdown of the pump or fan. Part of these defects can be eliminated with their own hands, but before you need to know what to do is prohibited from our own.

What can be repaired independently

Modern gas boilers are reliable devices that ensure efficient heating of the coolant. Their design can be divided into 3 main parts - burner, security blocks and heat exchange assembly with additional elements (circulation pump, expansion tank, fan). If the breakdown arose in the first two - a specialist call.

DIY repair of gas boilers is possible only in the part of the equipment in which the gas supply is not involved. Any interference or a change in the design (configuration) can lead to a serious emergency. It is possible to allocate the main types of restoration work, which are performed at home without the involvement of specialists.

• Washing heat exchanger. Exercised using special pumps or manually. For the latter you need to disassemble the block.
• Problems with a burden. Often the reason is to clog the chimney.
• Fitting a fan, expansion tank, pump.

First of all, you should familiarize yourself with the instruction manual for the boiler. In addition to recommendations for preventive work, a detailed description of the design is given. If this document is missing - you can take the necessary documentation on the manufacturer's website.

Cleaning heat exchanger

A large layer of scale on the inner walls of the heat exchanger can cause uneven water heating. This is due to a significant decrease in thermal conductivity. Once the water heats up to the desired temperature - the automation of the boiler turns off (reduces) the power of the burner. But due to the high inertness, the next "party" of the coolant will heat up much slower. As a result, alternation of flows with different temperature indicators. The greatest discomfort is a phenomenon brings during the use of DHW.

To remove scale, clean the heat exchanger should be cleaned. It is best to make a dismantling of the design - you can make sure of its integrity and at the same time. The procedure for performing work is as follows:

• Disable power and overlap the gas supply.
• Close the water receipt cranes and its distribution through the heating system and the DHW.
• Remove the facial cover of the boiler.
• Reset water residues. For DHW - open a crane with hot water; For heating - a special valve inside the design.
• Dismantling heat exchanger. It is important to remember the order of its attachment.

For washing, special compositions can be used or make a solution yourself. The main components are vinegar and citric acid. Previously cleaned the surface from rust, the heat exchanger is placed in a container with a cleansing composition. The exposure time depends on the level of clogging. Usually for complete cleaning grabs 1.5-2 hours.

Lack of traction

Periodic shutdown of the burner may be caused by bad burden in chimney. The sensor signals a large amount of CO² and the boiler automatically turns off. For cleaning, you first need to check the state of the chimney.

Most often, the problems arise in the winter. They may be associated with the formation of a nappy on the outside of the design. As a result, the useful diameter of the chimney is reduced, which directly affects the parameters of the thrust. To minimize this factor, it is recommended to make outdoor insulation or set the chimney with a basalt wool interlayer.

A large amount of soot is a rare phenomenon for gas boilers. However, with a long service life, it may occur. To eliminate such actions.

1. Disconnect the pipe from the boiler and completely dismantle it.
2. With the help of a special brush, clean the inner surface of the chimney.
3. Using a household vacuum cleaner, blow the design.

If the gas boiler is connected to a stationary pipe (brick) - you need to use special tools to remove soot. They are brushes fixed on steel rope. After cleaning, most soot will fall into the boiler. Therefore, it should be thoroughly rinsed.

Problems with equipment

If separate modules (expansion tank, pump or fan) came out of order - it is recommended to invite specialists to replace them. Qualified repair of gas boilers is possible only if there is a set of tools and a certain practice of performing these works.

The main problem is to diagnose breakage. For this, experts use devices that define a defective node. Based on the information obtained, a further repair plan is drawn up.

In order to avoid emergency situations with a gas boiler, it is recommended to adhere to the rules of operation of equipment. This will significantly increase the unlimited service life of the device.