Repair of the geyser "Oasis": an overview of typical breakdowns and recommendations for their elimination

Other malfunctions

Also, failures in the operation of the water heater can be caused by the following reasons:

Ignition system failure

In columns without an igniter (electronic ignition), the spark is generated by the batteries, they may have run out. Not always the battery capacity is enough for a year, as the manufacturer promises.

In other models, a spark is produced by a piezoelectric element, triggered by a turbine installed in the water supply.

If the water pressure is weak, such an ignition device will not work.

When buying a column, you need to pay attention to the minimum water pressure that it requires for normal operation.In columns with an igniter, the latter can become clogged: its flame becomes weak, sometimes yellow (this is how the lack of air in the gas-air mixture manifests itself). As a result, he either cannot ignite the main burner at all, or does this after a large volume of gas has entered, as a result of which the column ignites with a characteristic pop

After cleaning the igniter, the situation is normalized

As a result, he either cannot ignite the main burner at all, or does so after a large volume of gas has entered, as a result of which the column ignites with a characteristic pop. After cleaning the igniter, the situation is normalized

In columns with an igniter, the latter can become clogged: its flame becomes weak, sometimes yellow (this is how the lack of air in the gas-air mixture manifests itself). As a result, he either cannot ignite the main burner at all, or does so after a large volume of gas has entered, as a result of which the column ignites with a characteristic pop. After cleaning the igniter, the situation is normalized.

The membrane of the water node has exhausted its resource

This element, made of a polymeric material, must have sufficient elasticity, but over time it loses it, becoming rigid, and may even crack. It can also become overgrown with lime deposits.

Accordingly, the column will stop turning on, even if the user opens the tap completely.

The membrane must be inspected and if its condition is really unsatisfactory, replace it.

Control module board burned out

This often happens with imported speakers, which are very sensitive to the quality of the power supply. They should be connected through a stabilizer.

It is also useful to know that "smart" speakers with electronics should not be turned off at night.

Water node malfunction

Most often, gas water heaters are repaired due to a malfunction of the water block. Its job is that, under the influence of fluid pressure, the membrane inside it, bending, transmits movement to the rod, and already it moves the pusher of the gas unit. As a result, the spring valve opens and the power supply to the control module is switched on. Therefore, if the water unit is faulty, then the device will not start.

Water block failure can be identified by outward signs
.

If you notice at least one sign, then the node will need to be removed and repaired. The water unit is removed only together with the gas module, since they are a single structure.
You can do this in the following way:

• after you have made sure that the gas valve on the pipe is switched to the closed state, you can disconnect the supply hose (a);
• similarly, when the water supply is turned off, the nut on the water block pipe (b) is unscrewed;
• then, using a wrench, unscrew the nut that connects the water block to the heat exchanger (c);
• disconnect the terminal block (d) on the conductors connecting the solenoid valve with the control module;
• in the same way, the wires (e) going to the switch are disconnected;
• using a screwdriver, it is necessary to unscrew the 2 screws (e) that attach the branch pipe to the water-gas unit, through which fuel is supplied to the burner manifold;
• after unscrewing the fastener, the entire assembly can be easily removed from the device.

The repair of the Neva 3208 gas column due to a “frog” malfunction is similar and intuitive, although the internal view of the unit is slightly different. The gas column Neva 4511 is also disassembled, the repair of which is quite feasible with your own hands.

When is the repair Chinese geyser
, is always surprised by the size of the water node. It is quite small in size, and to disassemble the “frog”, you need to unscrew only 4 screws.

Elimination of violation of traction

To test the thrust, try using an ordinary match. Bring it to the chimney and determine if there is a draft, then the flame will deviate towards the chimney.

If there is no draft, then the geyser will not ignite, and users will not receive hot water. In many columns, draft sensors are installed, and if they show insufficient draft, ignition will not be possible. There are situations when the flame ignites and immediately goes out - this is due to the fact that the combustion products simply have nowhere to go, they remain in the combustion chamber, and the flame goes out due to lack of oxygen. Lack of draft will require an inspection of the flue gas collector and the chimney itself. If there are blockages, they can interfere with the normal passage of combustion products. The column perceives this as a lack of traction and does not allow the gas to ignite (or the gas goes out immediately after switching on). Unfortunately, only a part of the chimney, which is visible before entering the wall, can be independently checked - further work should be carried out by specialists. If the house is private, you can try to deal with the chimney yourself.

Rule out other column problems

Most often, you may encounter a situation where the column initially does not kindle a flame.First you need to determine what specifically led to this. After all, the problem may not be in the heat exchanger at all, but, for example, in dead batteries. Therefore, diagnostics is indispensable. Moreover, some of the breakdowns can be eliminated with your own hands, and in some cases you will have to call a specialist from the gas service.

External inspection of the water heater

Competent diagnostics will allow you to quickly carry out repairs on your own.

It is not recommended to carry out self-repairs if the geyser is under warranty. The service department can remove the device from warranty service

There are a number of elementary steps that should be performed before you go to explore the water heater from the inside:

1. Replacing the battery and cleaning the power contacts.
2. Checking the draft of the chimney and the presence of pressure in the cold water supply system.
3. Checking the fuse (for turbocharged speakers). You can turn the plug in the switch to change the phase location - relevant for imported models, as they are quite sensitive to this.
4. Mesh filter cleaning. This is a sump that can be found on a pipe that supplies cold water. Often the mesh is a constructive component of the water node.
5. Observe the ignition electrodes. To do this, just open the hot water tap, after which sparks should form. If the chamber is closed, then you can listen to the body. Characteristic sounds like clicking charges should be heard.

The above steps may not always help. Then you have to look inside the column, for which you have to remove the case.

Each gas column repair should begin with checking the batteries and cleaning the contacts if they are oxidized. You also need to inspect and clean the igniter. There are speaker models that have a small window for access to the electrodes, which can be cleaned with a brush.

Troubleshooting inside the column

If external inspection and replacement of batteries did not help, then you can start troubleshooting directly inside the device.

To do this, remove the casing of the water heater and check the main components one by one. It is better to perform all actions with an assistant. He should be asked to open hot water, and he himself needs to monitor the movements of the stem. The responsibility of this element is to act on the pressure plate to move it away from the microswitch button.

In the case when the pusher does not perform any movements, then with a probability of 100% the problem lies in the water block. If this problem occurs, it is necessary to disassemble the unit in order to clean and change the membrane in it.

Also, the stem can press on the plate, but the button will remain pressed. In this case, it is necessary to check the water regulator for scale. It must be found and cleaned.

If all the above elements work in normal mode, the button is pressed, but no sparks are formed, then in this situation the microswitch itself may be the culprit. To verify this, you need to disconnect its connectors and clamp the two terminals with a screwdriver. If in this case sparks immediately begin to form, then the switch is out of order and should be replaced.

It is necessary to check by closing the connector that is connected to the impulse block.The plug of the microswitch must not be touched.

The solenoid valve may also fail, due to which gas will not be supplied. To do this, check each of the sensors in the circuit by alternately closing. You can also use a multimeter to dial.

Norms for installation and connection of the Mora column

The main requirements are listed in the technical data sheet of the device and the user manual. Violations made during installation lead to the refusal of the warranty service of the boiler. Requirements:

• The connection must be carried out by qualified specialists with the appropriate license and work permit. After installation, an act is drawn up (the form is in the passport of the device), a stamp is put on putting the water heater into operation.
• A coarse filter is installed on the supply pipeline, in some cases a booster pump is connected at low pressure.
• The column must not be installed in rooms with high humidity (bathroom, toilet), directly above the gas stove, refrigerator.
• The room used for the boiler room must comply with the standards described in the SP and SNiP.

Maintenance of geysers Mora Top should be carried out at intervals of at least 1-2 years. Independent or unskilled repair leads to the withdrawal of the water heater from the guarantee, which lasts 3 years, from the date of commissioning. Do-it-yourself Mora gas column repair will inevitably lead to a denial of free service. If the breakdown occurred after the end of the warranty, call the gasman. It is better not to try to repair the water heater yourself.

Common breakdowns and troubleshooting of Mora's geyser:

• The main burner does not turn on - the reason is “dead” batteries, poor water pressure, lack of sufficient oxygen in the room.
• The presence of a leak - the rubber membrane of the water reducer broke through, corrosion corroded the heat exchanger (a copper coil is installed on the Mohr column, there will be a green coating in the place of leaks).

For supplying hot water and heating a private house, the most popular equipment is a geyser. It is available to almost everyone and does not require large expenditures. But you need to choose high-quality equipment. After all, a comfortable atmosphere in the house and safety depend on it. In this article, we will consider all the advantages and disadvantages, as well as the features of the Mohr gas column.

Lights up but dims

Let's consider several moments when the column decays some time after ignition and what are the ways to solve this problem:

One of the reasons is insufficient draft due to the lack of air movement inside the room where the device is located.

Traction test

This happens when windows and doors are tightly closed. For this reason, the protective relay overheats, the overheating sensor is triggered.

You can eliminate it by opening a window or window, creating a draft in the room. The gas heater burns a very large amount of oxygen during operation, so a constant supply of fresh air is required for its operation.

The second reason for the attenuation of the column may be insufficient holding time of the ignition button. It should be held for at least 20 seconds, if you hold it for a shorter time, the column will go out.

A malfunction of the combustion products removal sensor is the next point. To check the sensor, you need to ring it by connecting two terminals.Normally, the resistance should show infinity. If the reading is different, the sensor will need to be replaced.

Strong pressure of cold water, and low hot - this situation also often causes the water heater to fade. This happens when you open a cold tap using hot water. To eliminate this problem, it is necessary to adjust the water supply in such a way that you do not have to open cold water in order to dilute the hot one. In addition, this is an incorrect operation of the device, which can lead to damage to the heater.

High water pressure can lead to damping. This problem is especially typical for the Lux Eco model, which is designed to work with low water pressure. At the same time, the strong pressure of the duct bends the membrane of the water unit, the membrane shifts the stem in the gas supply. It is required to adjust the gas supply or, if possible, adjust the water pressure.

The temperature sensor has tripped, which protects the device from overheating.

Column Temperature Sensor Vector

For some time after ignition, the heater works, then it fades again. If you try to immediately turn on the device, there will be no result. After a while, about 25 minutes, the burner lights up, but then goes out again. The problem is that the sensor is too sensitive. In this case, only its replacement will help.

Poor contact between thermocouple and solenoid valve.

If the thermocouple is in good condition, it is necessary to clean the contacts and the automation unit.

The design of the igniter itself (the device for generating an electric spark).The electrode is mounted in such a way that the spark falls on the comb, which is welded to the edge of the gas burner at a distance of about 12 mm from its outlet. Provided that the gas supply is adjusted to low water pressure, the gas leaves the burner in a small volume and at a low speed.

Given the fact that a small reverse thrust is almost always formed inside the system, a weak level of gas goes down under the pressure of this thrust, not reaching the spark. This situation can be corrected by bending the electrode from the comb to a level at which the spark falls not on the comb, but through the gas exactly in the center of the burner. After performing such manipulations, the device almost always ignites, ignition is fast, stable and soft.

The formation of holes between the flue pipe, the connecting pipes of the flue device and the chimney, between individual sections of the flue pipe. It is determined visually, to eliminate it is required to seal the gaps with self-adhesive heat-resistant tape or other materials that are resistant to high temperatures.

Peculiarities

The high consumer demand and popularity of Oasis geysers are due to a number of undeniable advantages of these devices:

• The high safety of using the units is explained by the presence of protective sensors that turn off the device in emergency situations.
• The ability for stable heating of the coolant, regardless of pressure drops in the water supply system, makes the operation of the columns simple and comfortable.
• The location of the main module away from the hot water pipe increases the safety of the device and protects important structural components from overheating.
• The presence of a mesh filter protects the system of pipes and pipes from clogging and accumulation of rust.
• Economical fuel consumption is due to the presence of the "Winter-Summer" modes. This allows you to automatically adjust the fuel supply and significantly save on water heating.
• The presence of a heat-resistant alloy in the composition of the radiator eliminates the formation of scale on the inner walls of the device.
• High efficiency and long service life distinguish Oasis speakers from other devices present in this price category.

• The presence in the product line of turbocharged models capable of forcibly removing gas combustion products. They allow you to use the column without arranging a chimney and make their operation even safer.
• Modern and aesthetic design allows you to install speakers in kitchens and bathrooms without the risk of spoiling their appearance.
• All Oasis models are equipped with a LCD screen and remote control, which makes the use of the device simple and convenient.

Oasis geyser device (with diagram)

The inside of a standard hot water gas equipment is represented by:

• plate heat exchanger with water tube;
• gas burners;
• waste gas collector;
• piezoelectric element or automatic electric ignition.

The electronics are powered by batteries, from the mains or using a built-in miniature turbogenerator.Adjustment of the temperature regime of water in budget models is carried out by a water reducer or the so-called frog, and in more complex and modern ones - in automatic mode via electronics.

Gas boilers are characterized by the presence of an open or closed combustion chamber, and the difference between the models of the first type is represented by the intake of air masses directly from the room.

Exhaust gases are removed naturally through the chimney system, or using forced ventilation and a coaxial chimney.

Components and main units of flow gas equipment, requiring competent maintenance and explaining the principle of operation, are listed in the diagram.

Modern gas water heating equipment Oasis is equipped with protective automatic shutoff of the gas supply

Modern water-heating equipment is characterized by the presence of protective automation, represented by flame control and a traction sensor, which allows you to shut off the gas supply in automatic mode.

How to connect and set up

Gas hot water equipment installed in the kitchen or any other non-residential, but heated room in accordance with the gasification project and in accordance with the basic requirements of gas supply organizations:

• hot water equipment is connected to a chimney system with good and stable draft;
• it is forbidden to mount the equipment above any sources of open flame or heating devices;
• before installation, permission from the gas service specialists to install the equipment must be obtained;
• the installation of the unit is carried out by the gas operating organization or other licensed companies;
• installation is carried out on flame-retardant surfaces, including brick, concrete and ceramic tiles with mandatory insulation with galvanized sheet and BTK;
• the protective layer of insulation must protrude beyond the housing at least 10 cm along the entire perimeter;
• the column is suspended using brackets fixed in the wall, attached to the gas equipment;
• all shut-off valves in the form of water supply to the gas supply to the unit are located in an easily accessible place;
• a filtering system is installed in front of the water-heating equipment to purify the water supplied for heating;
• for connection to the water supply, pipes or flexible hoses with an internal diameter of 13-14 mm or more are used.

Below is a standard gas boiler connection diagram.

Connected gas equipment must be registered

After installation and until commissioning, the water heater must be registered with the gas service.

Mixing cold water in the mixer

Many people, instead of adjusting the degree of heating on the geyser itself, mercilessly torment the mixer. If you open the cold water too much, then the lighted column will simply go out. If at that moment it did not burn, then it will not light up all the more. Make it a rule to turn on the hot water supply first, and only then the cold water supply. And best of all, adjust the degree of heating using the appropriate controls.

You also need to remember that intensive mixing of cold water is not welcomed by the developers of gas water heaters - this can lead to damage.

Causes of malfunctions and do-it-yourself repairs

The use of geysers, however, like any other equipment, is accompanied by malfunctions, frequent or rare. At the same time, there are such malfunctions that can only be eliminated by specialists who have the necessary knowledge and permission for this. But there are those that can be completely eliminated with your own hands, so we will consider them.

Video - sensor malfunction

Video - Chinese geyser repair

1. The most "popular" type of breakdown is that it simply does not turn on. If it has an electronic type of ignition, then you can easily solve a similar problem - just check the batteries and, if necessary, change them to new ones. Often, such troubles overtake the owners a year after the acquisition, since the batteries serve mainly so much.
2. Also, when using a gas water heater, it may happen that the water in it does not warm up or it warms up, but not well enough. Often the cause of such problems is the water node, or rather, its defect. As a result, the membrane stops responding to the fact that pressure changes in the plumbing system. And if this membrane stops stretching under the pressure of water, then, as a result, the gas valve will not open, or it will open, but not completely. To solve this problem, you must at least in general terms know the device of the geyser, because the defect can be of several types.
   1. If salt deposits have accumulated.
   2. If the system is clogged.
   3. If there are cracks, etc.

To fix such a problem, you must first disconnect the column from the gas supply, then clean the water block and check the membrane.

If the internal elements of the device are covered with soot or dirt, this can also lead to failure. In order to solve such a problem, you must remove the outer casing of the device, then clean each of the elements using a vacuum cleaner.
The next sign that the geyser has stopped working correctly may be the attenuation of the burner immediately after turning on. This happens due to the fact that the ventilation channel is clogged. Modern models of gas water heaters are equipped with special sensors for such a case, which will inform the owner if there is no draft. After that, immediately turn off the gas supply. The next step is to check the chimney. To do this, the plug is dismantled and everything that has accumulated there is removed.

Important! You can check the draft of the chimney in the old "old-fashioned" way: bring a lit match to it. If the fire on the match deviates towards the chimney, then everything is in order with it.

If this does not happen, then it needs a complete cleaning.

It is for this reason that the geyser should be examined annually - this is the only way it will work correctly.

We also recommend that you familiarize yourself with the basic requirements

Water flow problem

Often the column does not ignite when water is turned on due to reduced water flow. With such a malfunction in the tap, the jet of water when turned on is very thin, weak. There is a feeling that the geyser in appearance is faulty. This happens with absolutely any brand: Neva, Oasis, Bosch.

A decrease in water flow can occur:

• Abruptly, the loss of efficiency disappears instantly.
• Gradually, with a noticeable decrease in the efficiency of the gas column;

A sharp loss of efficiency of the gas column can occur in connection with street work. During this time, street water pipes can be repaired. Accordingly, the total pressure of cold water everywhere will be drastically reduced. The owner can easily skip this moment and look for the cause in the geyser, disassembling it. The reason lies on the surface, but a person gets confused and looks for it in a completely different one.

Also, the water pressure in the gas water heater may gradually decrease due to the banal contamination of the aerator designed for the mixer. To eliminate the cause of the malfunction associated with the aerator in the faucet itself, it is necessary to remove and clean it.

This is a typical aerator that is installed on the mixer. Try to clean it

Owners who have a mesh filter at the inlet should also not forget about it and periodically clean it.

Coarse filter. It is installed on the supply of cold water to the column. Clean it up too

The filter flask can also cause a gradual decrease in water pressure in the geyser

It is worth not forgetting about this and, first of all, when that wick gas column does not ignite, pay attention to it. If you miss the reason that lies on the surface, there is a risk of investing in unnecessary diagnostics or repair of the geyser

Repair and diagnostics of the geyser, in this case, are not appropriate.

Two filters for water purification in flasks. They can also get stuck

There is another case associated with the lack of water pressure when the gas water heater is turned on.This happens due to mechanical clogging of the hose. Scale was found in the hose, and it blocked the path of water. Scale could come from the heat exchanger.

Preparing for a replacement

To change membrane in gas column, first of all, you should turn off the water at the inlet to the water heater or in the entire apartment. After that, the gas valve closes and the hot water tap opens. You should open the faucet, which is located the lowest in the apartment, usually it is located in the bathroom. Then all the water from the system will merge and will not interfere with the repair.

To replace the membrane, we need Phillips and flat screwdrivers, wrenches for 24 and 19, a new membrane or a repair kit.

Before removing the casing, we remove all the handles from the front side and disconnect the wires from the display, if any. In some speakers, the case is additionally fixed with screws that are located on the bottom and top of the speaker, under the adjustment knobs or decorative trims. Also, the casing is mounted on simple latches.

Faults and their elimination

Like any complex device, Oasis gas water heaters are prone to failure. The causes of malfunctions are manufacturing defects, incorrect installation methods, poor gas quality and gross errors in the operation of the equipment. The most common failure is the incorrect operation of the igniter, in which it first lights up, and then goes out or does not light up at all when the water is turned on. In this case, most likely, it will be necessary to clean the jets or completely replace them.

If the column does not turn on or goes out during operation, then one of the reasons may be the lack of draft of the ventilation duct or chimney.In this case, it is necessary to disassemble the pipe, set fire to a sheet of paper and bring it to the hood. In the absence of traction, you should clean the channel yourself or call a specialist. If everything is fine with traction, but the column still does not work, you need to check if there is a spark. In case of its absence, replace the batteries and start again. If the water assembly fails, fuel access to the burner or igniter may be impaired. To fix the problem, you can use the repair kit and replace the membrane yourself.

Sometimes it happens that the column works properly, but there is a strong smell of gas. In this case, you can not disassemble the device yourself in an attempt to find out where the leak is. It is urgent to turn off the column, close the valve on the main pipe and call the gas service. In some cases, the boiler may give errors that occur due to reasons independent of the technical condition of the device. For example, when the gas pressure is low, the code “EE” appears on the display screen. In the event of malfunctions of gas equipment, it should be remembered that disassembly and assembly of the device, repair of burners, heat exchangers and water units, as well as checking the tightness of pipes and their connections should be carried out only by specialists from the Gas Service.

Oasis geysers effectively solve the problem of lack of hot water supply. The simplicity and reliability of the device guarantees its durability, while the glass surface and stylish design decorate the space and add variety to the interior.

In the next video, watch the review of the Oasis geyser v-12w.

The Oasis geyser, which many buyers consider Russian or German products, is water-heating equipment from a Chinese manufacturer. It is designed for individual heating of water for household needs. They are made in two types - automatic with a closed and open firebox. The former work with the forced movement of the gas-air mixture using a coaxial chimney and with air intake from the street, while the latter receive it directly from the premises.

The movement of gases in them occurs due to natural circulations, the pressure of which is determined by the height of the chimney. Efficient and durable operation of the equipment depends on the correct selection and competent installation. However, even with this, the user of the dispenser may encounter malfunctions, especially with prolonged use of the unit.