How to remove limescale without removing the radiator
To perform this procedure, simply remove the front panel of the water heater and disconnect the heat exchanger tubes from the water unit. Do not ignore the second action and do not wash the coil together with the “frog”! You do not know how the detergent will affect the membrane and other parts of the water valve, so it is better not to take the risk, so as not to fix the unit later.
There are 3 ways to flush a heat exchanger internally:
- Connect hoses to the connections of the heat exchanger and pour the descaler manually through a funnel.
- Remove the gas boiler from the wall, turn it upside down and place it on the floor. Periodically pour citric acid solution into the coil and flush out the scale with water through the hoses.
- From a circulating pump for heating to make a booster. a device for pumping fluid through the heat exchanger. The circuit is simple: pump, connecting hoses and an open container with detergent.
The burner and the chamber of the gas-fired column will have to be cleaned with a brush with a long soft lint. Use a home vacuum cleaner to remove dust.
Construction and principle of operation
The gas water heater is a fairly simple equipment. Its construction consists of several elements:
- casing. Located on the outside, it serves both to protect the internal elements and ensure the aesthetic appearance of the appliance. On the front of it there is usually a control panel. From the inside it is connected to various sensors and to the heat exchanger. Accordingly, all the necessary operations you perform from this panel,
- heat exchanger. Also called the coil. Located in the upper part of the speaker, and is connected to the water pipes,
- burner. Located under the heat exchanger. It receives gas, which ignites when a spark is struck. The latter operation can be performed in different ways, which will be described later.
The principle of operation of the speaker is clear as two times two. Water flows through the heat exchanger, under which the gas burns. In the process, of course, it is heated and goes to the appropriate pipe to the water outlets.
Such a simple action and design is the undeniable advantage of the gas water heater. And not the only one. As already mentioned above, the most popular are electric devices. But there is a nuance.
The fact that water heaters on the principle of operation are divided into two categories: storage and flow-through. The first have a large tank, where the water is heated as it cools down. Electricity consumption during the operation of such devices, in principle, is tangible, but not prohibitive. But the disadvantage of such equipment is that the volume of heated water is limited by the volume of the container, so sometimes you have to wait until the new portion is ready. In addition, boilers have considerable size and weight, which makes their installation in small rooms questionable.
How To Install / Replace a Thermocouple in a Hot Water Heater
Flow-through water heaters are much more convenient. They are small, so they can be placed anywhere and hung on almost any wall strength. In addition, such devices ensure the continued availability of hot water, the amount of which is not limited. because it is heated in the process, passing through a heat exchanger.
And that would be OK, but this principle of operation requires a very large amount of resources. In the case of electricity, this is especially important because of high tariffs. The daily use of running water heater can lead to such bills for electricity that the owners unwittingly begin to think about the benefits of a cold shower.
And here the gas water heater is the panacea. The blue fuel has a very low cost. So the principle of flow-through water heater will not punch a hole in the family budget. That is why columns reliably hold their positions in the rating of water heaters for many years.
Of course, this is not without disadvantages. They are due to the fact that gas is a potentially dangerous substance. It is flammable and explosive, so the operation of the equipment working on it should be carried out in accordance with all safety requirements.
Among them, for example, the presence of good ventilation and chimney. The first is necessary so that in the event of a gas leak, it is drawn outdoors, not concentrated indoors. So the state of the ventilation should be carefully monitored, do not let the matter drift on its own. At least once a month you should check if it works. You can do it yourself easily. you just need to open the window and put a sheet of paper to the vent. If it sucks and holds on, then everything is fine with the draught. If not, then this is an occasion to call a master, and urgently.
As for the chimney, it is necessary for the removal of products formed in the process of combustion. For its arrangement have certain requirements, which have already been mentioned in one of the materials on our website. The condition of the chimney should also be checked regularly. In order to verify the presence of the draft, you can use the same piece of paper.
If problems in the chimney or ventilation system are identified, then it is strictly forbidden to use the gas boiler until they are corrected. Otherwise, the gas or combustion products will enter the room air, and such a situation leads to very harmful consequences for the health and life of people.
Typical malfunctions of gas water heaters
Gas stove. the device is quite unpretentious in operation and can work for a long time without failures. But if they happen, then you can diagnose the gas water heater for proper repair of the unit by the following signs:
If you find faults in the gas block, the repair of the gas water heater Ariston or repair of the gas water heater Junkers, as well as any other water heater on your own can not be carried out. To fix the breakdown should be a qualified technician. In other cases you can try to cope with them yourself.
How to clean the heat exchanger?
Measures to clean the heat exchanger must be carried out in a ventilated room or outdoors. It is recommended to use special glasses, gloves, closed clothing, as the substances used for cleaning can be dangerous. You can clean the heat exchanger of the gas water heater as follows:
- Disconnect the pipes through which water enters and exits the heat exchanger. The fastening nuts may have boiled over and are difficult to unscrew. Special liquid VD-40 or “Silit” will help. They should be poured into the joints of nuts and wait for about half an hour. After that it will be much easier to unscrew the nut.
- Pour the selected cleaner into the disconnected radiator and leave it overnight. When using industrial chemicals follow the instructions.
- Drain the composition, thoroughly rinse the heat exchanger.
The procedure is finished. The clean device is installed in its place. Before tightening the mounting nuts, it is advisable to change the gaskets.
Ways and means of cleaning
The instructions necessarily describe in detail the rules for cleaning the appliance components, deviating from which can be dangerous to life. If in the process of descaling or carbonation damage occurred to one of the elements of the device, and there was a gas leak, it is necessary to immediately contact the emergency gas service.
Before proceeding to the speaker cleaning procedures it is necessary to cut off access to gas and water
If after weighing the pros and cons, you have decided to self-clean the device, we suggest familiarizing yourself with industrial preparations and folk remedies that will effectively get rid of dirt.
In the video below, you can see in more detail how to wash the water heater radiator with citric acid:
Make sure to turn off the gas and water supplies before beginning any works.
|The problem||Folk recipe||Industrial detergent|
|Limescale in the heat exchanger||Aqueous citric acid solution (100 g of the substance per 0.5 l of hot water)||Calgon, “Anti-limescale”|
|Scale on the heat exchanger||Vinegar and warm water solution (1:3)||7-10% hydrochloric acid solution|
|Dust on the inner parts||Warm soap solution||Normal household vacuum cleaner|
Remove the scale can be with the help of chemicals, following the recommendations of the manufacturer, as well as by folk remedies.
If the second option is chosen, it is necessary to adhere to the following order of actions:
- Disconnect the device from the gas and water;
- disconnect the heat exchanger, remove it from the wall, drain the water;
- Using a blower or a syringe pour a cleaning agent (solution of soda or vinegar) into the heat exchanger pipes;
- Then the entire piece is immersed in a deep basin with the same mixture and leave for a few hours.
After the impurities are completely eliminated, the heat exchanger is connected back and start the speaker. The water pressure will finally clean the inner surface of the pipes, making them perfectly clean.
Heat exchanger. an important part of the water heater, which provides the transfer of heat from the burned gas to water
It is possible to clean the heat exchanger without dismantling it. To do this, remove the front panel and disconnect the unit from the water supply hose. Cleaning solution is then poured into the pipes through the inlet opening. In this form the device is left for 2-3 hours, after which the liquid is drained and everything is returned to its place.
Removing soot and soot
It is possible to clean the surface of the parts from soot without disassembling the heater, in just a few minutes. To do this, the following procedure must be followed:
- Shut off the gas and remove the front part of the body;
- Wipe the internal parts with a damp cloth or vacuum;
- Assemble the heater back.
From the video posted below, you will learn how to quickly and effectively clean the burners from soot:
If the burner starts to burn weakly, most likely the nozzle is clogged. You can find it on the gas manifold near the pressure sensor. Use a thin wire or stiff brush to clean.
Once the work is done, be sure to check the heater and rule out the possibility of a gas leak. To do this, lubricate the burner with a soapy solution and make sure there are no bubbles.
If the nozzles are clogged, the gas starts to burn weaker and the device stops heating water
Cleaning the water inlet assembly
In addition to the water heating part, any gas water heater is equipped with a water intake unit, whose main task is to prevent large particulate matter from getting into the heat exchanger. Over time, the strainer and the membrane, which is responsible for the automatic gas supply when you turn on the water, get dirty.
To clean the water intake, it is necessary:
- Remove it from the speaker housing;
- rinse the filter under cold water;
- Inspect the diaphragm for bends and bulges (if there are defects, the diaphragm must be replaced with a new one).
After examination and flushing all parts are installed in place, and the water receiver is closed with a lid.
The main causes of breakdown of the gas water heater
The heat exchanger is clogged
Among the most common causes of malfunctions of water heating units is the formation of scale inside the radiator. Most often the catalyst in such processes is a high level of water hardness. Limescale, in turn, appears at a temperature of fluid heating up to 80 degrees, if the temperature exceeds this limit, the processes are activated.
To get rid of such consequences will help the correct operation of the gas burner. Do not set the unit to high temperatures, for bathing, washing things in the automatic machine and heating water to 60 degrees is enough.
Especially often with the problem of scale formation in the heat exchanger are faced by apartment owners who leave the product to work by means of the igniter in constant mode. As a result, after just one hour the temperature reaches 90 degrees, and the formation of limescale can no longer be avoided. In this case, it is desirable to connect the installation as required and not to remake the automatic device to your liking. Or do not wonder why the device does not work.
But what to do if the failure has already occurred, how to fix it and repair the unit? First of all it is necessary to ascertain the cause, namely. If the hot water from the faucet flows in a thin trickle, while there are no problems with cold water, and at the same time the column refuses to turn on, it means that the case is just in the scaling.
Arm yourself with screwdrivers with different nozzles, a set of horn plumbing wrenches, a number of gasket materials and a rubber elastic hose. Do not do without descaler, which can be purchased at any hardware store. As a last resort, the product can be replaced with vinegar essence.
Remove the water heater from the fittings and the casing, turn off the water supply and open any faucet close to the heater. Unscrew the nut from the battery and wait until the water has completely drained into a pre-prepared container.
Pour the descaler through the hose to the inlet of the heat exchanger. Do this carefully so that the descaler does not spill out. Leave the gas boiler for a few hours, then open the water. The presence of a large amount of dirt in the liquid and a strong head means that you have coped with the task. If you feel that some of the scale is still inside, do the same thing again.
If the gas water heater does not work due to a leak, ideally you should replace the outdated with the new. But the price of heat exchangers is up to one third of the total cost of the entire product, so it is better to repair it with your hands.
A solder that can withstand up to 100 degrees of water heat will help. Open the hot water, remove the nut from the cold pipe, wait until the water drains out. If some of the liquid is left inside, blow it off with a vacuum cleaner.
The leak is repaired by soldering
Begin to do soldering with cleaning the place with a piece of cloth treated with solvent. Go over the surface of the fistula with fine sandpaper. Use rosin as flux, if you do not have it, crushed aspirin tablets will do.
As a result the thickness of solder should be 1-2 mm. You can consider that the fistula is repaired. Feel the tube of the heat exchanger, if you notice a spot of green shade, it means that in this place there is a micro-hole, and deal with it.
The gas appliance does not ignite
The reasons why it is impossible to light the device are simple. There is no draught in the ventilation. The chimney may be blocked or an object may have got inside. On this account, modern water heater models have a control and protection system, according to which the gas stops.
To fix the appliance you need to check the draught. Light a match and place it close to the chimney, the flame is flickering. The draught is there.
It is not possible to ignite the heater if the batteries are discharged. Weak water pressure is also a signal for the device to stop heating. Alternatively. It may be necessary to clean the filter represented by a fine mesh. Remove the nut, pull out the grid and thoroughly clean.
Determine the condition of the membrane component. Unscrew the two wrenches and the three screws that fix the water element. It should be separated and the diaphragm washed of dirt. Silicone diaphragm lasts longer than its counterparts.
The gas water heater heats incorrectly
This can happen if the unit is equipped with low capacity. It is possible to correct this defect only by buying a new model.
Frequent breakdowns of the gas water heater. reason for its replacement
If the color tone of the flame has changed. The product must be clogged. Adjust the gas supply to the burner with a tap that determines the volume of water moving through the heater for one minute. Reducing the flow capacity manually helps to fix the malfunction.
Very hot water at the outlet is not a defect, so it does not require any repairs. Limit the gas supply by using a mechanism to shut off the valve through which the gas flows, installed at the inlet of the water heater located.
How to disassemble the gas water heater and fix common problems
From the author: Hello, dear readers! Despite the popularity of electric water heaters, gas equipment occupies quite a niche. It is highly efficient, economical and has many other advantages. Of course, like any other equipment, such a heater requires regular maintenance, and sometimes minor repairs, which can be done at home.
In order for you to be able to carry out these operations, you need to know how to disassemble the gas water heater. That’s exactly what we’re going to talk about today. In addition to the disassembly process, you will also learn about ways to clean the heat exchanger from scale, as well as some repair work.
Concerning the last point, it is immediately worth saying the following. Not every procedure for repairing a gas water heater can be done at home. The blue fuel is a flammable and explosive substance, so if there is even the slightest likelihood of such consequences, you are strictly forbidden to engage in troubleshooting yourself. And it is not a theoretical prohibition, but very official.
There are several types of problems, which can only be solved by specialists:
- Faulty igniter. must be replaced,
- when the heater is working there are popping noises. it indicates too high or too low pressure in the gas supply, you need to adjust the heater,
- during the operation of the burner the flame is yellow, not blue. most likely, the problem is in the clogging of the element,
- You can smell gas when turning on the equipment.
Since all four cases are about the defective elements responsible for gas supply and combustion, only the specialists from the relevant service should deal with the problem.
The fourth case is worth mentioning separately. If you can smell gas when turning on or operating the heater, you must immediately take the following actions.
- Turn the equipment off.
- Blocked shut-off valve on the gas supply pipe.
- Provide an intense level of air exchange in the room. simply put, open the windows to ventilate.
- Call the emergency gas service and outline the problem.
In addition to turning off the water heater and shutting off the gas, you can not do anything else with this equipment until the problem is corrected by experts. Safety is the most important thing you should remember in this situation.
Well, with the prohibitions are solved. Let’s now move on to what you can do yourself if your heater is capricious and doesn’t want to work properly.
The most time-consuming is the cleaning of the main pipe. After all, with barely warm water, when the gas knob is squeezed all the way out, you can draw conclusions about possible clogging. During this period, the heat is rather poorly transferred.
Due to poor water quality, users often encounter such a problem as scaling. This negatively affects the operation of the equipment, their thermal conductivity decreases significantly, gas consumption increases significantly.
Before you get to work, you need to check the inlet faucet, valve. This may be the reason for the deterioration of the functional work.
Electrical equipment, lighting, lighting
One of the options for solving the problem of heating water. installation of a flow-through water heater. In this case it is the gas water heater that becomes the object of attention. After all, gas water heaters are more economical in comparison with electric ones in view of low tariffs for energy carrier, and in comparison with storage water heaters more convenient, because they allow you to use hot water in any quantity and at any time. In this case, the most important thing in time to identify faults and repair the gas water heater with their own hands.
The device of the gas water heater
An ordinary gas water heater is an iron box that resembles a kitchen cabinet. There are two gas and water pipes connected to it. Internal structure includes a heat exchanger, main burner and ignition burner. After the water tap has been opened, depending on the burner ignition method, the gas valve opens, allowing the energy carrier to flow to the ignition burner, from which the main burner will be ignited.
When the gas burns, heat is released, which is enough to quickly heat the water, which passes through the heat exchanger located above the burner spiral pipe. Heated water is routed through the water pipe that comes out of the gas heater to the tap (bathroom, shower, kitchen tap) which has been opened. Products of gas combustion are evacuated via the chimney, which extends to the outside from the top of the gas heater.
Boilers according to the ignition method of the igniter can be electronic, manual and with piezor ignition. Already outdated manual ignition involves the use of matches: you open the gas faucet, which comes to the speaker pipe, bring a lighted match to the igniter, which will immediately ignite. The main burner will ignite when the knob is turned.
Modern gas heaters have a more convenient, practical and safe electronic ignition system that operates on a full automatic. After opening the tap the system is activated under water pressure, with two finger batteries giving a spark, the gas valve opens at the same time. The spark is enough to ignite the burner, then everything will happen by the familiar system: the second burner will ignite, the water will be heated and will go through a heat exchanger to the tap. Burners turn off after closing the tap.
Piezo ignition system is specific in that it is based on the piezoelectric effect, when converted to electric action, in this case a spark. The first time the new water heater is switched on, the button activating the piezo element must be pressed on the front panel of the heater. The igniter lights up from the spark that is formed, and then the main burner ignites. The main burner goes out when the tap is closed, and the ignition burner continues to burn, but its heat is not enough to boil the remaining water in the heat exchanger. The next time you just need to open the water tap without pressing or burning, and the water will be warm.
Typical malfunctions of the gas water heater
The gas water heater is not a simple enough device, which, subject to certain rules of operation and careful care of its owner will serve for a long time. But sooner or later all appliances malfunction, and gas water heaters are no exception. Especially affected by this process, the quality of water and gas that are served by public utilities in our homes and apartments, and here after a certain time there is a need to repair the kitchen with a gas water heater. That is why it is worth examining the typical reasons why the appliance does not work as required.
The heat exchanger is clogged with limescale
The most common malfunction of gas columns lies in the clogging of the heat exchanger (radiator). In clogging of tubes by scaling it is blamed hard water. Scaling occurs at water temperatures above 80 degrees, and at 82 degrees this process begins to occur more intensively.
To prevent the formation of limescale is necessary not to use too hot water. For bathing the water temperature is enough close to 42 degrees, for removing grease when washing dishes about 45 degrees, as grease removers are able to cope with it and in cold water, and for washing in the washing machine. No more than 60 degrees.
Many people leave the gas water heater to work on the igniter, because it is convenient, and there is no need to ignite and adjust the heater every time. However, even an hour is enough time for the temperature in the heat exchanger to rise to 90 degrees. Hence the scale. Therefore, do not be lazy to turn off and turn on the heater when necessary, and do not modify the automatic heater, if you have a weak pressure, it is better to put in this case the pump.
Well, if you have a problem, you need to carry out repair of the Chinese gas water heater by washing the heat exchanger. It is necessary to understand that the heat exchanger of the water heater is really clogged, paying attention to the following symptoms: low head in the faucet with heated water, when the head in the faucet with cold water is good; the water heater along with this does not turn on; or immediately turns off after turning on. Of course, maybe the faucet at the inlet of the gas column is broken, but if it is faulty, proceed to the disassembly of the column.
To flush the speaker, you will need: a Phillips-head screwdriver and a flathead screwdriver, a set of open-end wrenches, a set of paranoid gaskets, and a rubber hose. In addition, you need to buy in advance in a hardware store antiscale, which is sold in a plastic bottle and in the form of dry powder. You can also use vinegar essence, because it is the most affordable.
First remove the fittings from the column, and then. casing. After that, you need to shut off the water supply at the inlet and open any of the heated water taps close to the heater. Next unscrew the supply pipe from the heat exchanger and take it aside. After you unscrew the nut from the heat exchanger the water will start to flow out of the heat exchanger. It must be drained out about a liter.
Next, put a hose on the heat exchanger inlet, raise it above the column, insert a funnel into the hose and pour the prepared solution in it in a thin stream. Pour slowly, otherwise a reaction will occur and the scale will be pushed back. The solution in the heat exchanger should remain for a couple of hours. You can also heat the substance on the burning igniter, so that the reaction is faster and less time is needed.
Place a basin or plastic bucket under the faucet and slowly open the water supply to the gas heater. Watch what comes out of the hose. If there will be a lot of sludge and after flushing the head will be good, then it worked, if not, you will have to repeat the process again. But with the use of descaler it is not necessary.
Soldering the radiator of the gas water heater
After finding a leak in the gas water heater, of course, the first desire is to replace the old heat exchanger with a new one. But the cost of the radiator is 1/3 of the price of a new column, so it is advisable to try to repair the unit yourself, soldering solder with a soldering iron. The water flows along the tube of the heat exchanger, the temperature of which can not be higher than 100 degrees, and the melting point of the solder reaches 200 ˚ C. So the solder will not melt.
Most often the fistulas appear on the tube that runs on the outside of the radiator, as it is often made of low-quality metal. On the surface of the tube that runs inside the heat exchanger there are usually no fistulas. If you were able to get to the place of the leak, then drain the water from the heat exchanger before you start soldering, as it will waste heat, so you will not be able to heat the soldering place to the desired temperature.
To do this, open the hot water faucet in the sink or sink, and unscrew the union nut from the speaker pipe that supplies cold water. Since the gas water heater is located at a level above the water tap, it will drain most of the water, but not all. To remove residues, practice blowing with a vacuum cleaner or compressor. Only after that you can begin to repair the radiator of the gas water heater.
Soldering itself is not difficult. Use fine sandpaper to clean off the oxides from the fistula, wipe the area after cleaning with a cloth soaked in solvent to remove grease and dust. Tinning can be any solder, for example, POS-61, using a soldering iron at least 100 W at a temperature of about 180 degrees.
Use rosin as flux. If you do not have it, you can take aspirin tablets. Crush the tablet and sprinkle the small crumbs on the tinning area, or rub the tablet on the heated surface. If the solder at tinning does not flow out, and you get a loose layer, it means that the place of soldering is not heated enough. In this case you should heat with another soldering iron, iron or construction hair dryer.
When the solder evenly with a thin layer covered the desired surface, build it up to a thickness of 1-2 millimeters, and the fistula on the heat exchanger will no longer show itself. Carefully inspect the radiator tube along its entire length. If you see a green stain, then in all likelihood there is a micro-hole in this area that is leaking water, it must be tinned and soldered. Otherwise, after a couple of months you will again have to deal with the repair of the bathroom with a gas boiler, as there will be a leak.
If the area of water leakage is located on the wall of the heat exchanger, which is adjacent to the base of the heater, the radiator repair in place is not possible, and you will have to remove the heat exchanger from the gas heater. To remove the unit for soldering, you need to disassemble almost the entire column and disconnect the gas pipe, but this is very dangerous.
The gas heater does not ignite
The most common reason that the speaker does not ignite. Just a lack of draught in the venting well. It may well be that the chimney clogged with accumulated soot or a foreign object got into it. In such a situation, as a rule, the protection system, which is located inside the heater, activates, and the appliance automatically shuts off the gas. Check the draft in the chimney. To do this, bring a lighted match, and if the flame will go away then there is a draft.
Another reason that the speaker does not ignite, is the banal discharge of batteries, but this only applies to devices with automatic ignition (from batteries or generators). Contrary to manufacturer’s claims that the life of the batteries is one year, you will need to change them much more often.
Gas water heater also may not ignite due to a bad water pressure. And it is easy to check it just need to open the cold tap. If there will be little pressure it is likely that the cause is not in the column itself, but in a separate section or in the entire pipeline. If you see that the cold water pressure is stronger than the hot tap, you should repair the water unit of the gas water heater, as the reason lies in the water unit of the heater (deformed membrane or clogged filters).
The strainer may become clogged at the water inlet after the water supply has been turned off and back on. To clean it, you simply need to unscrew one sleeve nut on the water supply side, take out the mesh and clean it.
To check the condition of the diaphragm, unscrew the two cap nuts from the water assembly, then unscrew the three screws that hold the water assembly by the cone in the gas assembly. Disconnect the halves of the assembly from each other and you will see the membrane. If the rubber has a deformed surface, rather than flat, with deflections, it should be replaced. At the same time you can clean the cavities of the water assembly and the filter screen of dirt. You can put a silicone membrane, which can last for many years.
It often happens that the gas water heater immediately after ignition goes out. The reason for this failure lies in the thermocouple, or rather consists in poor contact between the thermocouple and solenoid valve. If the thermocouple is intact, you should repair the automatic gas water heater, or rather clean its contacts and automation unit. In such a situation you should adjust the cold and hot water supply. Remember under no circumstances dilute the hot water with cold water, as this will provoke an immediate extinguishing of the flame.
Crashes and micro explosions that accompany the ignition procedure may be caused by: poor draft in the ventilation duct or well, discharged batteries that are responsible for igniting the burner, clogged nozzles or other elements of the burner, excessive gas inflow. When the burner is turned on, the gas from the igniter must ignite in time. But if the flame of the igniter will burn for some reason not right, then the gas will accumulate, which will result in a clap. a small explosion of the gas-air mixture.
In this situation, you need to look closely at the flame of the igniter. The flame should have a blue color, it should burn steadily, and the tongue of the flame should touch the main burner. If you see a yellow-red, unstable, small flame on the igniter, it is necessary to clean the nozzle and the tube that brings gas.
The kettle does not heat water properly
There are several reasons why the gas water heater does not heat water properly after turning on. First of all, the water heater may have a low power. Therefore, before buying equipment, always carefully review the data sheet of the device. Also the water can be heated badly because of the simplest clogging unit, a sign of which is a changed color of the flame and the appearance of soot in the process under the speaker.
If the heater does not heat the water, you need to adjust the gas supply to the burner. On modern gas-fired units there is a tap that allows you to regulate the flow of water, that is, the amount of water that passes through the unit per minute. Therefore, if the water heats weakly, it is recommended to reduce the flow rate, and the water will have time to heat.
How to Remove a Water Heater
In addition, the water from the speaker may be too hot. But in this case, there is no need for repair and maintenance of gas columns, as this situation is not a malfunction of the column. During the warm season, when the water in the water supply is warm enough and the pressure is low, there are problems that at first glance seem to be related to the malfunction of the water heater. Have you noticed that when you set the gas knob in the speaker to the minimum water heating position, the water is still very hot.
Just certain models of the gas water heater is not designed for such a mode of operation. The instructions for use of the equipment usually specify the minimum water pressure at which the gas heater will normally function. To solve the problem is very simple, you just need to limit the gas supply, while blocking a little tap, which serves gas, and which is installed in front of the inlet on the gas column on the gas pipe.
Sometimes there can be leaks in the connections of the gas water heater. The left pipe is necessary for the water supply to the speaker, there is always a tap on it to shut off the water supply to the speaker. This pipe is connected to the water-gas regulator by a spigot. Water flows from the regulator to the heat exchanger on the right side. The middle pipe of the speaker conveys hot water to the water supply and is connected to the heat exchanger on the left side through the branch pipe.
The right-hand pipe of the column is required for the gas supply and is connected to the regulator through a copper pipe. It is also mandatory to install a gas shut-off valve. Water connections in the column are made with union nuts and sealed with rubber seals. Over time, the rubber gaskets lose their elasticity due to temperature differences, become hard, and water leaks.
To repair the old gas water heater, you should replace the rubber gasket in the gas water heater. To do this, you need to unscrew the coupling nut with a wrench 24, remove the gasket that has already worn out, and install a new one. Sometimes one gasket is not enough, you have screwed the nut all the way in, but the water still oozes. Then it is recommended to put an additional gasket.
Four Water Heater Tanks Cut Open. Lessons to Learn
And finally you should get acquainted with one more problem with the work of the gas water heater: when you turn on the water heater you should not feel the smell of gas. If there is still a certain smell, remember that in this case it is strictly forbidden to conduct independent repair of the gas boiler! Turn off the gas valve immediately, ventilate the room and call the gas service!