DIY aeg gas water heater repair

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Repair of gas water heaters AEG

Breakdown of Aeg gas water heaters is a fairly common occurrence today. Neglect of the rules of operation, long-term lack of maintenance have a negative effect on the operational properties of the column, reducing them almost several times. And if you are faced with a malfunction in the operation of the AEG gas water heater - our company "GAZSERVICE" offers to use the services and fix it.

Why is it worth staying at our workshop. The service has five masters for the maintenance of gas equipment living in different areas of the city. Prompt departure for repair of gas water heaters Aeg takes place on the day of the client's request, the waiting time for arrival is 2-3 hours, subject to the low workload of the specialist. Working since 2009, we can boast of a large number of works performed, and a professionally designed service of gas water heaters on an individual program has gathered around us a lot of regular customers.

We offer our customers qualified service for gas water heaters as part of the annual maintenance. Cleaning the main burner to improve the heating quality. Elimination of the symptom of smoking flame. Replacement of consumables and full consultation on correct use.

By giving preference to our service, you will receive a full range of home services for your speaker at an affordable cost. The GAZSERVICE company undertakes repair the AEG column on a tight schedule... The specialists of our company use original spare parts from trusted suppliers in their work. Service workers, specialists certified by official dealers with permits for gas hazardous work. Departure of the master in Moscow and the near Moscow region.

We diagnose the Aeg geyser by phone, so the cost of this service for you is

Warranty and post-warranty repair of AEG, Electrolux, Zanussi gas water heaters.

Authorized service center AEG, Electrolux, Stiebel Eltron.

Service partnership with the federal online store Rusklimat.

Repair and maintenance of gas water heaters Electrolux GWH 275 SRN (RN), GWH 250 LEN, AEG GWH 11 RN, Vaillant MAG pro OE 11-0 / 0.

These geysers were produced by the Spanish plant Fagor and are the most successful of a similar model range. The control is fully hydraulic with a permanently lit igniter. Automation is based on the speed of water flow through the water unit.

During ignition, the control knob is set to ignition, the pusher of the handle axis presses the solenoid valve. Next, we press on the piezoelectric element, the spark jumps into the ignition burner and ignites the flame.

It is necessary to wait about 10-20 seconds and turn the knob into the operating mode (summer or winter). The pilot flame heats up the thermocouple, which generates a voltage of about 30 millivolts to hold the electromagnet in a clamped state. The gas unit is brought into working order.

The column is waiting for the opening of the tap with water. As soon as water begins to flow through the water unit, the activation rod moves up and opens the gas supply valve to the burner. The burner is ignited by the pilot and the water is heated. After turning off the water, the water unit returns to its original state, the burner goes out, the igniter continues to burn.

It consists of separate units of a traction interrupter, a heat exchanger, a burner with a gas supply train and nozzles, a gas unit, a water unit, a thermocouple, an ignition burner. Gas and water units are collapsible and repairable.

For repair, the outer protective casing is removed and a visual inspection is performed. The shroud retaining screw is located under the lower handle.

Leakage can be due to burnout and corrosion of the heat exchanger, wear of the seals and oil seals of the water unit.

There were isolated cases of not turning off the gas burner after closing the water tap. Due to the lack of heat removal, the water in the heat exchanger boils, vaporization occurs and, with the release of steam, melts the parts of the water unit (between the metal half-shells, the units of the water unit are plastic).

Replacing the original heat exchanger does not cause any difficulties. There are heat exchangers of Russian production in Tula, Iva-Service LLC. In the absence of a heat exchanger, a heat exchanger from GWH285 can be installed on the GWH275. There is no need to make changes to the structure, only it is necessary to install a 3/8 ″ extension about 40 mm long between the outlet of the water unit and the inlet of the heat exchanger (in the photo it is assembled from a 1/2 ″ barrel and two adapters).

The stages of repair are shown in the photographs.

Sometimes, when installing the gas handle in the ignition position and pressing the piezoelectric element, the igniter does not ignite. The igniter can be lit with a match. This defect is caused by an incorrect position or contamination of the spark plug and, less often, a malfunction of the piezoelectric element. The presence of a spark, you can see it, and clean the candle and bend the electrode. When the button falls out of the body of the piezo base, the button can be fixed with a ring.

Another malfunction - after igniting the pilot burner, and after waiting for the required time for the thermocouple to warm up and turn the knob to the operating position, the igniter goes out. This breakdown can be caused by a malfunction of the solenoid valve of the gas unit, disruption (oxidation) of the contact between the solenoid valve and the thermocouple, malfunction of the thermocouple, malfunction of the thermostat of the gas control system (soldered to the thermocouple wires and checked by a jumper) and malfunction of the valve of the gas unit.

In the valve of the gas unit there is a plastic cylinder with a groove for moving the axis and when the groove is worn, the valve does not function correctly.

The next possible breakdown is when, when the igniter is on and the gas valve handle is in summer or winter mode, after opening the water, the burner does not ignite. This is a malfunction of the water unit, internal blockages of the filter, vias, tubes inside, damage to the membrane.

Another possible malfunction of the water unit. The stem of the water unit hangs in the upper position due to a breakdown of the water flow valve, which seizes the piston of the stem.

Note the small tab on the membrane. He is responsible for smoothly turning on the gas when the water tap is opened (the flame should increase for 2-4 seconds), and instantaneous off when the tap is closed. If the membrane tongue does not adhere tightly to the lower half (does not cover the via of the Venturi tube) of the water unit, then when you turn it on again, the column will give out a portion of boiling water. All malfunctions of the water unit are eliminated by its bulkhead or replacement.

In May 2017, a repair kit for a water unit manufactured by Nizhny Novgorod appeared. The repair kit includes rubber rings, a membrane, a lubricant. The repair kit can be purchased from us.

The extinction of the column during its operation is associated with clogging of the heat exchanger soot or weak draft and insufficient air flow into the room. At a nominal gas consumption of 2 cu. meters per hour, about 25 cubic meters of air are needed, naturally, when installed in a small room, without providing air flow, the gas column will go out.

Sometimes gas workers, in order to eliminate the problem with the extinction of the column due to soot contamination or air inflow, bridge the sensor (thermostat) of the gas control system, which is UNACCEPTABLE.

Pops during the ignition of the column occur when the igniter nozzle is clogged, or the igniter gas filter is clogged (a small corner of foam rubber in the gas unit). In case of blockage, the flame does not reach the working burner and ignition will occur after the combustion chamber is completely filled with gas. The column must be cleaned and serviced once a year. Some operate without service until the start of breakdowns for 5-7 years. When servicing a column, you must completely disassemble the column.Clean the traction chopper from dust and dirt, flush the soot from the heat exchanger, clean the burner, flush the igniter nozzle, lubricate the gas unit, flush the water unit and, if necessary, change the membrane.

Automatic ignition device:

• Check whether the batteries are installed in a special hole and are used to ignite the column.
• Open the gas cock.

• Set the power control relay to maximum.
• In order for the column to start its work, it is necessary to open the hot water tap on one of the faucets in the apartment. If suddenly it does not turn on, repeat the opening of the valve after 15 seconds.
• Check if there is a flame.

The amount of gas consumed can be adjusted using a relay located on the control panel (indicated by a flame icon). To increase the power, you will need to turn the relay counterclockwise and vice versa to decrease it.

Temperature control is carried out using a regulator (indicated by a temperature column icon), which is located on the control panel. To increase the temperature and decrease the pressure, turn the relay clockwise.

Please note that the cold water shut-off valve on the riser must always be fully open. It is forbidden to regulate the fluid pressure using it.

If you know that the device will not be used for a long time:

• Shut off the gas supply.
• Remove the batteries from the device.
• Close the cold liquid stopcock.
• Set the temperature control relay to the minimum value.
• Open the gas valve.
• Drain the liquid by opening a special valve.

To ensure trouble-free operation, it is necessary to clean it once a year. If you need to replace worn parts, use original parts when replacing, but if you use others, you automatically void the warranty for the device.

So, you need to check:

• System for removing carbon monoxide.
• Clean the burner and gas nozzles. This can be done with a brush.
• Clean the heat exchanger.
• Assess the condition of the ignition and reference electrodes.
• Make a soapy solution and see if the gas joints are airtight.

In order to turn on the unit, you need to drown the knob that regulates the gas supply and turn it clockwise to the position where the asterisk is drawn. When we have set the lever in this position, it is necessary to press the piezo ignition button and hold it for about 7 seconds, until a stable flame appears.

If you are turning on for the first time or after a long period of inactivity, during which the gas was turned off, then you need to do the following. Turn the switch to its lowest position before you hear a click, so that the gas mixture fills the entire pipeline.

Gas column piezo ignition button

You may have to wait about 15-25 seconds, depending on its duration, and then set it to the asterisk position and use the piezo ignition, which is located at the bottom of the column.

After switching on, you must wait 15 seconds for the safety valve to operate. Then you can set a comfortable heating mode using the gas control relay.

In the instructions for the AEG gas water heater, the presence of two operating modes is prescribed: summer is indicated by a low flame, it turns on when the entering water temperature reaches 10 degrees. As a rule, this is from April to October, winter is marked by a high flame.

If the device is turned off due to inadvertence and you need to start it again, you need to wait 5 minutes until the safety valve turns off.

Regardless of the mode that you have chosen for operation, economy or normal, you can still change the heating temperature. Rotating the relay to the left to decrease, and to the right to increase.

When the work is stopped, it is necessary to turn the gas power regulator relay clockwise. Thus, you cut off the gas supply to the ignition group.

The device is not intended to be in subzero temperatures. Therefore, it should be installed in heated rooms. If, nevertheless, this is not possible, it is necessary to drain the water from the system. You can read how to do this above.

Gas water heater in the bathroom

Scale is one of the main problems of this device, due to its accumulation, there is a decrease in the flow of water, a decrease in the temperature of heating the liquid. In order to minimize its accumulation and formation, it is necessary to heat the water to a temperature not higher than 45 degrees. If, however, you notice signs of its accumulation, clean up immediately.

This type of cleaning must be carried out at least once every 12 months, to clean the main burner you will need:

• Close the gas supply, remove the cover of the apparatus.
• Clean nozzles with a brush or a brush, blow off residues of fine dust and debris.

Gas column ignition burner

The pilot burner needs to be cleaned when the flame has changed to orange, normally blue-blue. So, we perform the following actions:

• We shut off the gas supply, remove the casing, unscrew the nuts to remove the burner and nozzle.
• We blow out the ignition burner tube and clean it.
• We also clean the nozzle.
• We put everything in its original place.

If the device does not light up, the following malfunctions are possible:

• Not enough gas. Check if the gas is open, if yes, it may have run out in the cylinder (if it runs on liquefied gas).
• Air ingress into the gas pipeline. Can be eliminated by opening and closing the valve.
• Defective batteries. Perhaps they are discharged, or there was a mistake during installation and they were installed incorrectly. The batteries may have leaked.
  Installing a gas column battery

Check the correct installation, if they are damaged, clean the socket where they were and install new ones. This malfunction can only be with devices with automatic ignition.

Insufficient water pressure. It happens that the pressure of cold water is much less than that of hot water. There are two ways out - either install a pump that will increase the flow, or adjust the heating of the water so that it does not need dilution.

Poor cravings. It is very simple to check it, substitute a burning match or candle to the chimney, if it sways, the chimney is normal and the problem lies elsewhere. And if not, then cleaning is needed, you can do it yourself or contact a special service.

Such a complex device as a gas water heater serves for quite a long time, care and operation is carried out according to the instructions attached to this unit. But all things deteriorate and sometimes minor or major repairs of gas water heaters or their prevention are necessary. As well as replacing some of the components of the gas column.

The internal structure of flow-through gas water heaters is of the same type and almost does not differ from different manufacturers. The main difference may be in additional options (display, automatic gas ignition, second temperature sensor, etc.), in the appearance of the device or in the design.

This is a gas column heat exchanger, it may look different from different manufacturers, but the principle of operation is the same.

A heat exchanger is installed inside - a finned copper tube through which a water flow moves. The burner standing under the heat exchanger heats up the tube and the water passing inside it heats up. With a low water pressure or its absence, the incoming flow is blocked by a valve (curtain), to which a spark ignition switch is attached. This is for fire safety.

To repair a faulty gas water heater or prevent a gas leak (if you smell), you need to call a gas water heater repairman.But if you decide to call the workers of Gorgaz, then do not think that they will immediately come, sometimes they refuse to come, explaining that the repair should be carried out by the company (or store) that installed the gas water heater.

Now a lot of "left" firms have divorced. and calling the workers of such organizations to their homes brings a number of other problems. Many craftsmen, seeing your incompetence in this area, find non-existent faults in the gas column or deliberately raise prices.

To increase the safety of the population, it is prescribed that malfunctions associated with gas equipment be eliminated by employees of the relevant service. But there are some problems that you can fix yourself. If you know how to hold the tool in your hands, you can repair the gas water heater with your own hands.

It is not very difficult if you know the typical problems of these water heaters. Below we will tell you about the most common of them and show you how to fix this or that breakdown. And let's start by setting up the unit.

Adjusting the height of the burner flame - the closer to the maximum the hot water is.
Adjusting the water flow - the closer to the maximum, the greater the flow, therefore, the water is colder.
Winter / Summer - the mode of using the speaker at different times of the year. In winter, the power is greater than in summer.

Not all masters know how to properly set up a gas water heater and simply don’t do it, leaving it as it is (by default). But we do not recommend leaving the factory settings and making adjustments yourself.

• Set the gas and water knob on the heater to minimum.
• Open the gas and water supply valves on the pipelines.
• Open a hot water tap and adjust the water pressure you need using the knob on the gas water heater.
• Wait 1-2 minutes and measure the temperature. Use the gas knob on the column to increase the flame, thereby increasing the temperature of the water to the one you need.
• When the water temperature is comfortable, you can leave all adjustments alone and use the water.

In the future, you can adjust the temperature with another knob (supply of heated water).

This is a membrane in the gas column, if it fails, then the unit stops responding to the pressure of water.

When adjusting the speaker, sometimes unpleasant moments arise. The new column either turns on at a very low pressure, or does not want to start at all. It depends on the increased or decreased water pressure in the pipeline and is eliminated in the following ways.

With our water quality, the heat exchangers in the gas columns are clogged with scale quite quickly and very much, which reduces their thermal conductivity and increases gas consumption.

The longest, in time, process - cleaning the main tube (radiator) from deposits arising from heating tap water. If you turn the gas knob all the way, and the outgoing water is barely warm, then this indicates that the heat exchanger is clogged with ordinary scale, which does not transfer heat well.

This happens quite often in the case of a gas water heater without auto-ignition (with an igniter). Scale also forms if you set the water heating temperature too high. The unit overheats, the tube (radiator) heats up to 80-850, which contributes to the rapid (a little over an hour) the appearance of scale. Isn't it better to just turn off the speaker in time? Then there will be no problems, because 40-600 are enough for all washing and washing processes.

Check the inlet cock or valve before starting work on the heat exchanger. Maybe the whole reason is their clogging. But if they are in good condition, it is necessary to get rid of the deposits in the tube.

There are two ways to deal with the scale problem. We'll look at both options.

The Cillit KalkEx cleaning system does its job pretty well. With its help, you can quickly clean any boilers from scale. Unfortunately, it is not very accessible for ordinary users of gas water heaters.

This is an expensive method using a special device. (Cillit KalkEx) and a set of special preparations for flushing.Your speaker does not even need to be removed from the wall. You just need to disconnect the water hoses (inlet / outlet).

The purification device is connected to the column, and it runs the heated reagents in a closed loop (in a circle). Scale under their action decomposes, is washed out and drained.

Cheap but time consuming and laborious process... For its implementation, it is necessary to disassemble the water heater almost completely and then rinse it manually.

The following materials and tools will help us with this:

• open-end wrenches (set);
• screwdrivers (Phillips and regular);
• paronite gaskets (set);
• rubber hose;
• vinegar essence or anti-scale agent.

To remove the heat exchanger, proceed as follows:

• first, we block the access of cold water;
• then we remove the external elements that prevent disassembly (knobs of switches, regulators);
• remove the casing, and for this we unscrew the screws located on the rear wall of the unit, lift and remove the cover;
• we open the "hot" tap;
• unscrew the supply pipe from the heat exchanger and move it aside;

After the water has completely disappeared, we put the hose on the heat exchanger tube and raise it above the column level. Slowly, pour the solution prepared by us into the hose and leave the column for 4-6 hours.

Next, you need to slightly open the water supply tap and watch the water that will come out of the column, if you saw a lot of scale, then our work was not in vain - we got rid of it... If there is no scale in the outgoing water, then we repeat the whole process again.

1. The failure of a water heater can occur for many reasons. We will list the most likely ones:
2. The simplest reason for this trouble is the lack of normal draft in the chimney. If the chimney is clogged and there is no "draft" in it, then the column may not ignite.
3. To check for a malfunction, you can bring a piece of newspaper, a napkin or a lighted match to the chimney. If they flutter, then the cravings are in order. Otherwise, you will need to clean the chimney.
4. If the device (only in units with auto-ignition from batteries or an electrical network) does not ignite, then it is all the fault of the discharge of the batteries or the malfunction of the wires, the igniter unit. Eliminated by inserting batteries or checking the electric ignition system.

Failure of the igniter system can occur from poor pressure water. Open any tap with cold water and check the pressure, if it is weak, you can call the ZhEK and find out what the problem is.

If the column does not ignite when water is supplied or only turns on at a very high pressure, then the problem is most likely in the membrane, which, due to wear, reacts poorly to the water passing through it. In this case, it must be replaced.

This is a temperature sensor that measures the temperature of the gas column during operation, preventing it from overheating.

A temperature sensor is installed on each gas column, which makes sure that the column does not overheat in the event of a failure the column may turn off spontaneously during operation... It usually looks like this:

After normal operation, for some time, the heater “stalls” for 20 minutes. After this time, it can be turned on for the same period of time. The malfunction, as a rule, is seasonal and appears only in summer or winter with closed windows.

The device turns off when it wants and then does not light up... This can happen when the sensor wire is shorted to the body. Check wires are intact and well insulated.

In order to check the sensor itself for operability, two contacts should be removed from it and short-circuited with a needle, a paper clip, a piece of tin. If the gas appliance turns on and works, the sensor must be changed.

If you see similar spots on your column, then be sure that it is leaking and needs repair.

This malfunction can occur mainly in gas water heaters that have been operating for a long time. The two main reasons for the leak are:

Tubes (bends) or gaskets in the joints are cracked.
Replacing a radiator or taps is quite expensive. Therefore, there is a reason to repair the gas column on your own. For repairs you need:

• screwdrivers (cross and regular);
• open-end wrenches (set);
• solder with rosin;
• a vacuum cleaner;
• solvent;
• "Skin".

Due to the harsh operating conditions, the radiator or bends can burn out and holes appear on them. If you have determined where the leak is, then you can repair the small hole with an ordinary soldering iron.

Preparing the gas water heater for repair

• Drain all liquid from the system - open only the hot water tap, unscrew the nut on the cold water inlet pipe, and most of the water will flow out;
• Remove the radiator completely;
• Examine the entire tube. - if you see "greenery" - clean and inspect these places for cracks.

Soldering a heat exchanger does not always give good results, here a lot depends on your skill. If the soldering is poor, the heat exchanger will quickly flow again.

When you have found the leaks, you need to do the following:

• clean the holes found with "sandpaper" and immediately wipe it with a cloth and solvent (this will remove the remaining grease, carbon deposits and dirt);
• using rosin with solder, tin this place with a 100 watt iron (in the absence of rosin, use aspirin);
• rub the crack or hole with solder, and after it cools down, add more tin (the layer should be 1-2 mm).

Replacing flexible hoses of this type does not require special skills; anyone can do it with a wrench.

Very often, leaks are formed in the places where the outlets are connected to the heater from the outside or to the internal assemblies of the column. All connections are made by "American" with gaskets inside.

Due to constant heating / cooling, the rubberized liners either melt or lose their properties and harden. Cracks appear in them, along which water flows.
If you notice a gas column leak in such connections, then replace the gaskets. Using a wrench (mostly 24), unscrew the nut and replace.

It also happens that the flanges on the pipes crack over time - in this case, you need to replace the entire pipes.

Be sure to change the batteries in the gas water heater in time, because if they are dead, your column will start to emit pops when it is turned on. Also, due to dead batteries, the column may turn off spontaneously.

These startup and operating sounds indicate the following:

• a little air got into the system (into the burner) due to the low gas pressure, which generated a microexplosion;
• the flame breaks down due to the high pressure of the gas;
• nozzle blockage;
• low draft of ventilation;
• the batteries are dead.

On your own, you can only eliminate the malfunctions described in the last two points.

This can happen for several reasons.

• The simplest reason is incorrectly selected gas water heater... You have saved money and bought a low power heater that is unable to meet your hot water needs.
• The second reason is the low gas pressure in the pipes (in the apartment). Call gas workers to check the system.
• The third reason is the usual blockage (jet, filters, scale, hoses, etc.), some types of which are described above. You can check this by the color of the fire, which changes from time to time. This is evidenced by the presence of soot.

You can only adjust the temperature and clean the column yourself.

Any professional will tell you: "a gas water heater is a potentially dangerous equipment, so you can only entrust its maintenance and repair to a qualified specialist." However, the ability to understand which element is out of order and what it can lead to will definitely not hurt.

DIY geyser repair

In addition, you can deal with the elimination of some malfunctions that do not specifically affect gas equipment on your own. Read the description of typical breakdowns and recommendations for action in case of their detection.

Gas column device

Equipment can stop igniting for several reasons.

Gas column device

First of all, you must make sure that the igniter is working properly. If it does not light up, contact your gas service. A specialist will clean or replace the failed element. You cannot touch it yourself - it is dangerous.

Gas column device diagram

In modern units with electronic ignition, in the absence of ignition, gas ceases to be supplied - it is cut off by a valve. The user becomes aware of this through the corresponding indicator. In some situations, this problem can be solved by simply replacing the battery. Check this point in the instructions. If the manufacturer does not give such recommendations, it is better to immediately contact the gas service or a third-party repair service.

At one point, the column may not light up

Battery pack for igniting the column

The column will not light up if there is no ventilation draft. To check the level of traction, we bring a strip of paper to the ventilation grill. If the leaf does not change its position, or if it does not change it sufficiently, there are obvious problems with craving. In apartment buildings, utilities are engaged in cleaning ventilation wells - contact them. You can do this yourself with the help of a metal brush tied to a flexible wire (hose, etc.) of a suitable length, however, utilities usually do not approve of such unauthorized actions.

Burners often fail to fire due to diaphragm wear. This structural element deforms rather quickly, the burner starting mechanism becomes less sensitive and does not work when the water is turned on. Even in expensive heaters, membranes wear out in 5-8 years - unfortunately, nothing can be done about this.

Often burners do not fire due to diaphragm wear

To check, turn on the water to maximum. If the column turns on with a strong pressure, the problem is definitely in the membrane. Replacement of this element can be done on your own.

To do this, do the following:

• unscrew the fastening nuts from the water unit (usually there are 2 of them);
• unscrew the fastening screws, due to which the water unit is held in the gas unit (usually 3 screws);
• detach the halves of the assembly and you will see a rubber membrane. If it is not flat but noticeably deformed, replace it. To do this, buy a similar product from a specialized store. If possible, give preference to a silicone membrane - it will last much longer than its simple rubber counterpart.

At the same stage, you can check the condition of the water intake filter. If it is clogged, clean it or replace it with a new one. To clean, simply unscrew the nut from the water supply side, take out the mesh and rinse it or replace it with a new one, depending on the condition.

If the heater turns on but goes out, the problem in most situations is the bimetallic temperature sensor needed to protect the equipment from overheating. Also, due to malfunctions of this element, the heater may not turn on at all.

This problem has 2 main development scenarios.

1. According to the first scenario, the burner lights up properly, the equipment functions for some time without any complaints, and then goes out and for some time does not show any signs of life - attempts to ignite the heater do not lead to anything. Usually, after 20-30 minutes, the equipment turns on again and history repeats itself. This is due to the excessive sensitivity of the sensor. As a rule, it is "congenital", i.e. this is a factory defect. It is extremely difficult to do something on your own. It is better to immediately contact the manufacturer's service for warranty repairs.
2. According to the second scenario, the column may turn off randomly, and sometimes not turn on at all. The reason usually lies in the wear of the insulating material of the conductor of the bimetallic sensor.There is a banal short circuit to the case, as a result of which the safety valve is triggered, and the column begins to behave abnormally.

Contact the service center for warranty repair

It makes no sense to turn to gas workers - the defect is clearly not a "gas" one. You also don't need to try to get rid of the breakdown yourself - you can only break the unit. Contact the service center for warranty repairs.

Water comes out with a weak pressure

Most often this happens due to clogging of the column heat exchanger with scale. Prolonged “idle” ignitions of the igniter are usually the cause of clogging. The device heats up the heat exchanger to a temperature sufficient to cause the remaining moisture to evaporate.

There is no water flow, scale is not washed out of the heat exchanger, until the next turn on of the equipment, it sets, as a result of which the column ceases to function normally. Cleaning the heat exchanger usually saves. In advanced cases, it has to be changed.

For replacement, it is better to immediately contact the professionals, but you can handle the cleaning on your own. Prepare screwdrivers, rubber hose, open-end wrenches and paranite gaskets. Purchase a descaling mixture from a hardware store. Usually it is called that - antiscale. A more budgetary option is rinsing with vinegar essence. Work in this order.

First step. Remove the fittings and the casing from the heater one after the other.

Second step. Turn off the inlet water and open a hot water tap, preferably as close as possible from the column.

Step three. Unscrew the water supply pipe from the heat exchanger and then move it to the side. After unscrewing the nut, the column heat exchanger will begin to release water. In total, about 1 liter of it will be drained.

Fourth step. Place a hose of a suitable diameter on the inlet of the heat exchanger and lift it just above the heater. Insert an ordinary funnel into the fixed hose and start slowly pouring in the prepared solution in a thin stream (instructions for preparation are given on the package). There is no need to rush. If you pour it too quickly, the antikipine will simply push it back out, and you are unlikely to like it.

Flushing the gas column heat exchanger

Leave the cleaning agent in the heat exchanger of the heater for 2-3 hours (usually the required time is indicated on the packaging).

Place a suitable container under the water tap and carefully re-feed the heater. Observe what comes out of the hose. Was there a lot of slurry coming out, and then the head returned to normal? Things are good. Otherwise, flushing will have to be repeated. Usually, the need for re-rinsing arises only when using vinegar essence. In most situations, decalcification works the first time.

In such a situation, it is better to immediately contact a professional. He will perform the adjustment, which is extremely difficult to make without knowledge of the matter, and the column will start working normally.

You can find out the reasons for the appearance of such a malfunction for general development. There are two main reasons:

• the gas is supplied under too high a pressure. The heater ignites too actively, which leads to the breakdown of the fire;
• the gas flow is too low. Air enters the heater burner, resulting in a microexplosion, which is interpreted by human hearing as cotton.

The column does not heat up the water sufficiently

This usually happens due to the insufficient power of the gas column. The user begins to demand more from the equipment than it can do.

There are two options for solving the problem:

• we stop abusing and do not open hot taps at the same time at all points of the water intake;
• buying a more powerful speaker.

Also, inadequate heating of the liquid can occur due to a clogged burner. Look at the color of the fire. Under normal conditions, it is bluish. If the flame turns yellow, contact the gas company. Such repairs can only be entrusted to a professional, tk. this is already a "gas" breakdown.

The problem is more than serious. Don't even think about any hand-made repairs.Turn off the heater, turn off the gas cock, ensure that there is adequate ventilation at all times, and call the gas service immediately. The arriving team will assess the problem and take appropriate action.

Now you know the main malfunctions of the gas column, and you know how to behave when they appear. The main thing is to remember about safety. There is no need to try to fix breakdowns for which you do not have enough qualifications - this can lead to irreparable consequences.