Popular models of geysers Oasis - instruction manual

Malfunctions happen in any equipment, regardless of the manufacturer. Be it a famous German brand or its Chinese equivalent. The difference is that in the second one they occur more often.

The breakdown of such an irreplaceable device as a geyser creates a lot of inconvenience. If the malfunction is not related to a gas leak, in most cases, you can repair the Oasis geyser yourself. We will talk in detail about what kind of breakdowns are most often diagnosed in speakers of this popular brand among users, as well as how to fix them in this publication.

Starting the device and adjusting the temperature

To correctly set up hot water in the device, you must:

• Open the hot water mixer fully;
• Using the water switch, select the required temperature value;
• Close the tap.

According to the advice of professionals:

• Wait for the moment when the pressure in the line drops, but the column will still work;
• Turn the water toggle handle to the maximum;
• Turn the gas regulator to the minimum value until the temperature is as desired.

For final preparation, it is worth adjusting the gas supply. To do this, you need to look at the technical data sheet and find out the minimum value for this brand.

The toggle switch is turned to the minimum value.

Turn on the gas supply valve. At the gas water heater, Electrolux and Ariston do this after connecting to the network. The Oasis, Junkers and Bosch gas water heaters are connected when the batteries are installed.

The hot valve is turned on and the device starts working.

How to adjust the water temperature

Turn on the mixer and check the water heating temperature. It must be twenty-five degrees more than the original one. It is worth noting that the water in a gas boiler heats up gradually. The geyser is adjusted using the gas lever.

Professionals do not recommend heating water above fifty-five degrees. This has a bad effect on the device, as scale forms.

Blood pressure problems

Setting up a geyser requires some time. Accordingly, the result will be visible later. After each stage, it is worth pouring out the water and letting it heat up again so that the values ​​are correct. Low pressure in the device may interfere with normal operation.

If you have problems with blood pressure, you should perform the following manipulations:

• Remove the casing from the device;
• Loosen the locking bolt, use a pressure gauge to check;
• Remove the seal from the adjusting screw;
• Turn on the boiler;
• Set the values ​​to maximum, unscrew the hot water supply taps;
• Adjust the desired pressure.

The Bosch gas water heater, namely its pressure in the nozzles, is regulated in the following way:

• Remove the casing;
• Attach a pressure gauge;
• Loosen the locking screw;
• Attach a pressure gauge to check the pressure in the injectors to the nozzle.

Next, the Bosch gas water heater with maximum thermal power is regulated:

• Remove the seal from the screw;
• Turn on the device;
• Hot water taps are turned on;
• The adjusting screw adjusts the pressure in the nozzles;
• Put the seal in place.

There are brands that have a special “Winter-Summer” mode with temperature adjustment. This handle was made at the bottom of the Ariston gas water heater. Adjustment of the Oasis gas water heater is located on the front panel. The peculiarity of the mode is that in winter the power is higher than in summer. The heating power of the liquid in the column is directly related to the temperature of the inlet stream. In winter, the regulator is set to “maximum”, the heating will be at its highest. In summer, the temperature of the inlet flow is higher and is set to the minimum position. This saves resources.

It is easy to remove bad pressure when checking.

To do this, you must perform the following manipulations if the device has already been used:

Pay attention to the rubber membrane. The performance of this part is directly related to the pressure in the line. At the moment the integrity of the membrane is violated, namely when it is exhausted, gas does not flow and the burner does not turn on

The problem is solved by replacing the part. Pay attention to the mesh filter. It is located at the entrance to the water block. The water pressure becomes lower due to debris clogging the part. The problem is solved by cleaning

At the moment the integrity of the membrane is broken, namely when it is exhausted, gas does not flow and the burner does not turn on. The problem is solved by replacing the part

Pay attention to the mesh filter. It is located at the entrance to the water block

The water pressure becomes lower due to debris clogging the part. The problem is solved by cleaning.

Water unit malfunction

Most often, geyser repairs are made due to a faulty water block. Its work is that, under the influence of liquid pressure, the membrane located inside it, arching, transmits movement to the rod, and it then moves the pusher of the gas unit. As a result, the spring valve opens and the electrical power supply to the control module is turned on. Therefore, if the water unit is faulty, the device will not start.

A broken water block can be determined by external signs.

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If you notice even one sign, the unit will need to be removed and repaired. The water unit can only be removed 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 in 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, you need to 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 to the control module;
• wires (d) going to the switch are disconnected in the same way;
• using a screwdriver, you need to unscrew the 2 screws (e) attaching the pipe to the water-gas unit, through which fuel is supplied to the burner manifold;
• After unscrewing the fasteners, the entire assembly can be easily removed from the device.

Repairing a Neva 3208 gas water heater due to a faulty “frog” is similar and intuitive, although the internal appearance of the unit is slightly different. The Neva 4511 gas water heater can be disassembled in the same way, and repairing it yourself is quite feasible.

a Chinese gas water heater repaired?

, the size of the water node is always surprising. It is quite small in size, and to disassemble the “frog” you only need to unscrew 4 screws.

How to solve a problem

If the filter is clogged, you should remove this part from the device. Clean it with a stiff brush and water. If, during cleaning, a violation of the integrity of the filter is noticed, it is worth replacing the part with a similar one.

If the hot water pipe is clogged, you should run cold water in the opposite direction. The plug is removed, a container is placed under the device under water and both taps are turned out. The spout is closed with your finger. It is considered possible that cold water will push the clog forward.

Why does the water in the gas water heater not heat up?

It is not recommended to use chemicals that remove scale from the column. Their composition can easily destroy the metal surface. The best option is to use citric acid, which is dissolved in hot water.

If the blockage has advanced further than the pipes, it can easily penetrate into the faucet. The most “vulnerable” places where blockages mainly appear are considered to be a thin rubber hose, a filter and a faucet. The problem can be solved by disassembling the mixer and performing a thorough inspection. Dirt is removed using running water.

Elimination of traction disorders

To test traction, 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, the gas water heater will not light and users will not receive hot water. Many dispensers are equipped with draft sensors, and if they show insufficient draft, ignition will be impossible. Situations are possible when the flame lights up 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 here, 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 turning on). Unfortunately, you will be able to independently check only the part of the chimney that is visible before entering the wall - further work must be carried out by specialists. If the house is private, you can try to figure out the chimney yourself.

How to prevent breakdown of the Oasis geyser

In order to prevent a situation where repair of the Oasis geyser is required, it is necessary to properly care for gas equipment and operate it correctly. These are the recommendations that can be read in the instructions for geysers. Here are some operating tips:

• You need to monitor the battery charge.
• When turning off the unit, you must first turn off the water.
• If the unit is turned off for a long time, then it is necessary to shut off the supply of bitter water.
• Periodically clean the column from scale.
• Use only the gas recommended by the manufacturer.
• Do not turn on the column if there is no traction.
• Do not carry out repairs yourself.

Features of using batteries

Of all the parts, batteries require the most frequent replacement. For geysers, you should choose only alkaline batteries made using Alkalin power technology, size “D” and the first letter “L” in the designation is LR20. Their capacity and service life are five times greater than those of salt ones: from 1 to 1.5 years.

It is better not to buy elements that are too cheap, as they may turn out to be fake. It is possible to install NiMH or Li-Ion batteries, but their price with a charger is higher

To do this, you can buy a special 3 V power supply, or use a 5 V mobile phone charger with an additional stabilizer. The main requirement is that its power is sufficient for ignition, which occurs at a supply voltage of 3 V and a current of 350 mA.

In case of a power outage, you can always keep batteries in reserve; fortunately, alkaline batteries have a shelf life of 5 years or more.

Column heat exchanger quality

When choosing a column, special attention should be paid to the quality of the heat exchanger. The type of metal and its quality have a great influence on the lifespan of the radiator

They are made of galvanized steel, stainless steel, copper.

The most durable of stainless steel, but inferior in thermal conductivity to copper. Accordingly, they are less economical and have lower efficiency. Copper is the most efficient in heat transfer, but also the most expensive.

When replacing the heat exchanger with a new one, pay attention to the thickness of the metal and the weight of the radiator. High quality should not be too light. The high cost of copper leads to manufacturers saving as much as possible on the thickness of the heat exchanger wall, bringing it down to 0.5 mm, which significantly reduces the service life

For the same reason, other metals are added to copper. The alloy obtained in this way may have unpredictable properties. As a result, such a heat exchanger cannot even be soldered

The high cost of copper leads to the fact that manufacturers save as much as possible on the thickness of the heat exchanger wall, bringing it down to 0.5 mm, which significantly reduces the service life. For the same reason, other metals are added to copper. The alloy obtained in this way may have unpredictable properties. As a result, such a heat exchanger cannot even be soldered.

System water quality

If the water in the system is subjected to frequent chlorination, this will negatively affect the condition of the copper heat exchanger. In combination with the thinned walls of the pipeline, this can quickly lead to corrosion and the appearance of fistulas.

You can improve water quality using aquafilters and magnetic softeners.

Overheating of the geyser

The most important factor leading to malfunctions and reduced service life of the column is its overheating

It is important not to raise the temperature to 65 degrees or higher

Standards for installation and connection of the Mora column

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

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

Maintenance of Mora Top geysers should be carried out at intervals of at least 1-2 years. Independent or unqualified repairs lead to removal of the water heater from the warranty, which lasts 3 years from the date of commissioning. Repairing a Mora gas water heater with your own hands will inevitably lead to a refusal of free service. If a breakdown occurs after the warranty expires, call a gas technician. It is better not to try to repair the water heater yourself.

Common breakdowns and troubleshooting of the Mora gas water heater:

• The main burner does not turn on - the reason is dead batteries, poor water pressure, lack of sufficient oxygen in the room.
• Presence of a leak - the rubber membrane of the water reducer has broken, corrosion has 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 home, the most popular equipment is a gas water heater. It is available to almost everyone and does not require large expenses. But it is necessary to choose quality equipment. After all, a comfortable atmosphere in the house and safety depend on this. In this article we will consider all the advantages and disadvantages, as well as the features of the Mohr gas water heater.

Popular models and their technical characteristics

• Oasis Glass 20VG is a universal boiler for private houses and multi-room apartments. Distinctive features include a bright, attractive design, electric ignition, and a large diameter radiator tube. The column also has an LCD display. Productivity – 10 l/min, at 20 kW of power.
• Oasis 200G is an ideal solution for operation on liquefied gas from a cylinder in conditions where gas is not supplied to the house. The presence of adjustment elements, several modes and low cost with high efficiency are the distinctive features of this boiler.
• Oasis TUR 24 - two color schemes will allow the water heater to fit into any design, the unit operates from the mains, has a built-in fan, the boiler operates in automatic mode - the device will turn on when the hot water tap is open.
• Oasis B-12W is a small water heater with a power of 11 kW and a capacity of 5 liters per minute. The unit is suitable for a country house or a small apartment. The control panel has a display and adjustment toggle switches.

offers the Russian buyer a wide range of boilers for various purposes. You can purchase a water heater running on liquefied gas or electricity, small boilers with low power for a summer residence, or large-sized installations for a large private house with several baths. Before purchasing, you need to calculate how much supplied water is needed in your case, and take a unit with a more powerful performance as a reserve.

Important! Thus, even after a few years, when the power decreases, the boiler will function at a comfortable level

Preparing for replacement

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

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

Before removing the casing, remove all the handles from the front side and disconnect the wires from the display, if present. In some speakers, the housing is additionally secured with screws that are located at the bottom and top of the speaker, under the adjustment knobs or decorative trims. The casing is also secured with simple latches.

Poor pressure

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

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

Lights up but goes out

Let's consider several moments when the column fades out some time after ignition and what ways there are 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.

Checking the traction force

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

You can eliminate it by opening a window or vent, creating a draft in the room. A gas heater burns a very large amount of oxygen during operation, so it requires a constant supply of fresh air to operate.

The second reason for the column to fade out may be the insufficient time of holding the ignition button. It should be held for at least 20 seconds; if held for less time, the column will go out.

A malfunction of the combustion products exhaust 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 have to be replaced.

Strong cold water pressure and low hot water pressure - this situation also often causes the water heater to fade. This happens when you use hot water and open a cold tap. To eliminate this problem, you need 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 incorrect operation of the device and can lead to damage to the heater.

High water pressure can lead to attenuation. This problem is especially typical for the Lux Eco model, which is designed to work with low water pressure. In this case, the strong pressure of the flow bends the membrane of the water unit, the membrane moves the rod in the gas supply. It is necessary to adjust the gas supply or, if possible, adjust the water pressure.

The temperature sensor has activated, protecting the device from overheating.

Column temperature sensor Vector

The heater works for some time after ignition, then goes out again. If you try to turn on the device right away, there will be no result. After some time, 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 replacing it will help.

Poor contact between thermocouple and solenoid valve.

If the thermocouple is working, you need to clean the contacts and the automation unit.

The design of the igniter itself (device for generating an electric spark). The electrode is mounted in such a way that the spark hits 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.

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

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

Model range of geysers "Oasis"

Gas equipment is the most popular after the boiler, providing hot supply in apartments and private households. The “Oasis” column heats water during gas combustion, and the resulting hot water supply can be used for technological, economic, sanitary and household purposes. For operation, not only natural, but also liquefied or bottled gas is used.

Flow-through

Flow-type gas units perform instant heating of water; the design does not have a tank, and the water heating function is associated with a direct-flow operating scheme.

Standard model geysers run on natural gas and have automatic ignition from batteries

The Standard model is available in white and steel colors

A distinctive feature of the Oasis Glass speaker is its unique design

The Glass model is equipped with a modern security system

The combination of compact size and modern design in Oasis gas equipment

The TURBO model has an LCD water temperature indicator

The TURBO Glass model has the same characteristics as TURBO, but has a unique design

During the warm season, TURBO Glass gas equipment allows you to save up to 50% of energy.

Oasis 20 OG equipment is designed to operate on liquefied gas

Oasis 20 OG equipment is highly efficient

Gas water heater B 12-W, fully adapted for use in Russia

The Oasis B 12-W column is able to remain operational at low gas pressure

The embodiment of European design in Oasis Modern equipment

The Modern series of gas equipment Oasis is equipped with convenient adjustment of gas and water supply

Oasis instantaneous gas water heaters are characterized by ease of operation and guaranteed reliability, and also have a whole set of undeniable advantages.

Cumulative

Gas storage type water heating equipment is structurally similar to storage electric boilers, but bottled or natural gas is used as an energy carrier. The convenience of large-volume, rather expensive and less compact storage devices is relevant in conditions of insufficiently strong gas supply lines, which is why such models are not very popular among domestic consumers.

User opinions

“We installed an Oasis turbocharged gas water heater in the apartment two years ago, the model functions without leaks or malfunctions. It turns on when the tap is opened, even with low water pressure, heating takes no more than 10 seconds, and serves two points: in the kitchen and in the shower. It works directly from a regular power supply, there is no need to purchase batteries, however, it does not start when the lights are turned off. Like all gas water heaters, it is economical, fuel consumption is insignificant, combustion products are removed forcibly, and the noise is quite tolerable. The disadvantages include a sharp increase in water temperature when opening the second tap, albeit short-term.”

Igor, Yekaterinburg.

“I have been using the Oasis electric boiler with a capacity of 50 liters for more than a year, I consider its quality and reliability to be fully consistent with the price, there have been no reasons to contact the Oasis for repair or warranty service. The insulated tank of the storage water heater holds heat well; the amount of water dispensed is quite enough for two people. I consider the only inconvenience that it takes a long time to heat up an empty tank - from 1 hour, I noticed that it is better to leave some of the hot water, so it reaches the desired temperature faster.”

Alexander, Rostov-on-Don.

“I live in a private house, there was a need to replace the column, the old one could not be repaired. I chose a gas water heater from the manufacturer Oasis, did the installation myself, and the standard diameter of the chimney was suitable. I would like to note such a feature of operation as the need for good traction; one day the pipe became clogged with debris and the equipment simply did not turn on. Also, for private homes, I advise you to buy the Oasis model with frost protection and a “winter-summer” mode; gas consumption is actually reduced by 50% in the warm season.”

Grigory, Chelyabinsk.

“I purchased an Oasis instantaneous water heater with automatic ignition for my dacha with the simplest functions and protection. The purchase was justified, there was no need for expensive repairs, the only malfunction during the three years of service was the ignition button. To preserve the resource, I advise you to drain the water from the heat exchanger in case of rare visits in winter, even with good insulation of the chimney.”

Eduard, Nizhny Novgorod.

“We bought an Oasis brand water heater with a 30-liter storage tank a year and a half ago, based on positive reviews and an affordable price. The boiler pays for itself, but when guests arrive, the water runs out too quickly; I think that for a large family it is better to purchase a more capacitive model. In automatic mode, the temperature inside the tank is maintained for up to 4 hours without consuming electricity.”

Irina, Moscow.

“I decided to buy an Oasis for an apartment with a family of 4 people, since it was not possible to install a groove. I spent a long time studying reviews of household appliances and settled on the Oasis Slim with an 80-liter tank; its performance turned out to be sufficient. I can’t call this option economical, but it covers the need for hot water. There are no complaints about the reliability of the boiler; I don’t see any external corrosion or leaks.”

Sergey, Ekaterinburg.

Price

Internal organization

The diagram above shows the design of a typical gas water heater, which is also typical for Oasis columns.

Let's look further at how the most common type of brand's flow-through chimney model with automatic ignition works.

When the tap is opened, water is supplied through the inlet pipe into the water-gas unit, which turns on the ignition and gas supply. As soon as it ignites, a signal is sent from the flame sensor to the electronic unit to stop sparking.

Next, the water passes through a coil rigidly fixed to a heat exchanger, which is heated by burning gas. The coil transfers heat to the flowing water coming out.

When the tap closes, the water-gas unit turns off the gas supply. The combustion stops and the column goes into standby mode for the water tap to open.

An important condition for the normal and safe operation of the column is the removal of combustion products through the ventilation chimney. If the hood is missing or insufficient, the draft sensor is triggered and the column is turned off.

An overheating sensor is responsible for timely shutdown of the column when the maximum temperature is reached. It is an important element of the column, providing protection against overheating

Maintaining the required temperature regime is an equally important condition for fire safety and long service life of the column. Overheating negatively affects the condition of all elements, primarily the heat exchanger, which leads to their premature failure

Overheating negatively affects the condition of all elements, primarily the heat exchanger, which leads to their premature failure.

The speaker turns off during operation

The device turns on, operates for a long period, then turns off. Why the speaker may go out during operation:

• Settings are checked. Probably, automatic shutdown after a certain period was selected.
• Increase in temperature indicators - more than 100 degrees. In this case, the temperature sensor will work and the operation will stop.
• Insufficient pressure in the gas or water supply.
• The contact between the thermocouple and the magnetic valve is broken. Contacts are cleaned and connections are tightened.
• Oxidation of contacts of the control unit. The device begins to click, but the wick does not light. The contacts need to be cleaned.
• The batteries are low. Replaced every 6 months. It is optimal to purchase batteries with a high charge content.

Clogged shower head and hose

It happens that the speaker turns on and immediately goes out when switching to the shower. This is associated with clogging of the watering can. It is necessary to unscrew it, clean it and wash the holes. It is effective to soak metal elements in a solution with citric acid.

Scale on the watering can is formed due to an increase in water hardness in a number of regions. For these purposes, filters are installed or a mixer with a shower is purchased, which is equipped with an integrated anti-scale system.

The next part that sometimes causes the wick to go out is the shower hose. When it gets tangled or clogged, the pressure decreases and the device turns off.

Sometimes the mixer breaks or becomes clogged. It is necessary to disassemble it, check it, and clean it if necessary.

Soot accumulation on the heat exchanger

During operation, the heat exchanger accumulates soot and scale. If it becomes clogged, the color of the fire will change to blue. Cleaning algorithm:

• The casing is removed.
• The screws are unscrewed.
• The water supply is cut off.
• The faucet opens to drain hot water.
• The thread and tap are disconnected.
• A solution of hydrochloric acid is prepared.
• Take a pipe with a diameter of 1/2″ inch or use a hose.
• One end is connected to the input, the other to the output.
• The solution is poured into the funnel.
• When pressure appears at the outlet, the procedure stops.

When working, you must wear gloves. When the scale has been removed, it is necessary to thoroughly flush the heat exchanger to remove acid. Cleaning is recommended once a year. Regular care helps the device function properly.

Traction is poor or completely absent

The accumulation of combustion products is often associated with clogging of the chimney with scale and dirt. If there is no traction or it is not enough, the working out will not be removed.

To check the traction, you need to bring a lit match or lighter to the control window of the device. If the fire deviates to the side, draft is present. If it remains lit, it is missing.

It is necessary to take into account that the fire sometimes goes out due to external circumstances - gusts of wind, for example. The draft in the mine will increase or decrease under the influence of drafts.

The chimney is also cleaned through a “pocket”, which is located 0.25 m lower. When such actions do not help, you need to call specialists.
Date: September 25, 2022

Features of using speakers

Reviews of Oasis speakers sometimes do not reveal the technical features of the devices. These include:

• The presence of a mesh filter, which is mounted on each individual gas burner. It helps prevent dirt from entering the coil of the device.
• The manufacturer has installed special corrosion protection for the tank. This is a magnetic filter.
• The coil tube is significantly wider in diameter, and its surface has a special anti-scale coating.
• The device is safe, as there is a shutdown system in case of lack of water, and there is also a blocker to prevent it from overheating.
• The heat exchanger of the water heater is also protected from scale thanks to a special coating.
• The device can operate in low pressure conditions.

In general, a gas water heater has enough advantages

It is important to evaluate all the options and choose the device that will meet your wishes and capabilities.

Possible difficulties

Like any equipment, you need to be prepared for the fact that the geyser may also stop working at some point. There are several options in which unpleasant situations may arise:

• manufacturing defects;
• incorrect installation;
• improper operation of gas equipment.

Often in reviews people complain about certain problems. For example, there is no spark in the device. Sometimes reviews complain that the flame goes out if the ignition button is released. Often it is not possible to regulate the gas pressure in the gas water heater; the water heats up to a lower temperature than stated by the manufacturer.

In each individual case, it is necessary to be guided by different criteria when choosing a method for repairing a geyser. Most water heaters come with a 2-year warranty.

Reviews

I would like to leave a review about the operation of the Oasis OR-20W flow-type gas water heater and I hope that it will help someone make the right choice. This speaker is made in China, so initially I didn’t have any special hopes for the quality. But, to my surprise, this speaker model pleasantly surprised me. It is not expensive, it works quietly, the water heats up quickly enough, simple mechanical adjustments, and temperature control is provided.

Georgiy.Kotelnikov

https://irecommend.ru/content/mogu-rekomendovat-isklyuchitelno-iz-svoego-opyta

I really liked the design. This immediately caught my eye in the store... In addition, the speaker is safe. There is no direct access to fire, everything is covered with glass. Convenient to adjust and change modes. You can adjust the burner power and water pressure. The water temperature is displayed on the LCD screen. The screen has a blue backlight. Our column can simultaneously supply both taps, in the kitchen and in the bathroom, with hot water. After turning on the column, the water reaches the desired temperature in a matter of seconds. But there is one drawback. If the batteries run out, you will have to sit without hot water. As I already wrote, you can’t get around here with matches. That's why we always have spare batteries on hand.

Svetik170288

Distinctive characteristics of gas equipment

The speakers are available in two categories: Turbo and Glass. The Oasis Standard (Turbo) design can be made in a matte steel color or standard white gloss. Power can vary from 12 to 26 kW. The Oasis Glass speaker has a varied appearance due to the application of drawings of different themes, shapes and sizes. The case is presented with glass lining. The unit is available in two capacities: 20 kW and 24 kW.

Speaker Oasis Standard (Turbo)

The features of the Oasis gas water heater are:

• continuous operation even under conditions of low gas pressure;
• automatic shutdown of the column in the absence of water supply, so it is safe to use;
• overheating of the control module is excluded, as it is located at a safe distance from the hot water pipe;
• burner protective filters prevent the entry of contaminants from the water supply system;
• the presence of seasonality modes allows for significant savings on gas resources - in summer the water temperature in the water supply system is much warmer than in winter, which makes it possible to heat water with less power;
• The heat exchanger is based on a heat-resistant alloy, which helps prevent scale;
• the presence of a magnetic filter protects the tank from corrosion.

Due to great competition, the manufacturer combines the cost of equipment and its quality as much as possible, increasing the number of consumers. Compared to electric boilers, a gas water heater is more economical

At the same time, when considering the positive characteristics when purchasing, it is necessary to pay attention to the weaknesses of the device

Mixing cold water in the mixer

Many people, instead of adjusting the degree of heating on the gas water heater itself, mercilessly torment the mixer. If you open the cold water too much, the lit column will simply go out. If at that moment it was not burning, then it will certainly not catch fire. Make it a rule to turn on the hot water supply first, and only then the cold water supply. It’s best to 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 geysers - this can lead to their damage.

Malfunctions and methods for their elimination

Before you start troubleshooting the Oasis brand column and choosing a solution, you need to make sure that there is normal water pressure in the system and draft in the chimney.

It is better to check the draft with a candle or match; the flame should deviate well until it extinguishes.

Let's consider the most common malfunctions that appear during the operation of Oasis speakers, possible causes of their occurrence, and methods of elimination.

If the Oasis gas water heater does not light up, there may be several main reasons.

Let's talk about the main ones:

Insufficient power supply to the speaker

Insufficient power supply or no power supply. The most likely and simplest reason for this malfunction lies in dead batteries.

If, when you open the tap, you hear a discharge crackling sound, there is a spark, the pressure is normal, but the gas does not ignite, then the reason is most likely in the batteries.

Over time they lose their capacity. Their power drops, they cannot supply the required current to the load. It is only enough to start a high-voltage generator, and there is not enough power to open the solenoid valve.

Deterioration of contacts in the battery compartment due to corrosion and contamination can also cause ignition problems. Corrosion can be caused by leaking batteries or moisture entering the contacts from the outside.

Repair instructions: replace the batteries with new ones. Alkaline elements should be installed. First you need to check the condition of the contacts. If necessary, wipe them with alcohol, or clean them with sandpaper, a knife or a file.

If corrosion damage occurs as a result of moisture ingress, the source should be identified and the leak repaired.

For chimneyless speakers, the lack of ignition may be due to a faulty power supply. Only in this case there will be no spark discharge.

Weak pressure at the water heater outlet

Deterioration of water flow through the column is a common occurrence.

If the water pressure in the system is normal, but the outlet of the column is weak, then there may be several options:

• the filter at the inlet of the water block is clogged;
• the throughput of the heat exchanger coil is impaired due to scale;
• the mesh divider (aerator) on the hot water tap is clogged;
• a piece of scale got into the flexible hose supplying hot water to the tap.

Remedy: remove, clean, rinse mesh filters under running water. Replace flexible hose. Clean the heat exchanger.

Water unit malfunction

Under the pressure of the incoming water flow, the membrane pushes the rod, which opens the mechanical gas valve and presses the microswitch button that activates the ignition.

This mechanism may fail for the following reasons:

the membrane is worn out, over time it loses its properties, elasticity, and breaks; the rod is stuck.

Repair instructions: disassemble the water unit. If the threaded connections are stuck, treat them with anti-corrosion agent WD-40 or brake fluid and leave for half an hour.

Then replace the membrane, lubricate the rod, spring and seal. It is better to install a new silicone membrane; it will last longer.

Malfunction of microswitch or solenoid valve

You can check the serviceability of the microswitch and solenoid valve with a multimeter. To do this, it must be switched to resistance measurement mode with a minimum limit.

Connect the probes to the microswitch terminals and alternately press and release the button.

If the readings of the device vary from one ohm to infinity, then the switch is most likely working. If the readings do not change, the microswitch is faulty.

To check the solenoid valve, you need to measure the resistance of the solenoid windings at the connector terminals. It should be about 400 ohms between the black and yellow wires, and the yellow and red.

Between the red and black wires - about 7 ohms. If the measurement results are significantly different, the solenoid valve is faulty.

Other faults

Also, malfunctions of the water heater can be caused by the following reasons:

Ignition system failure

In speakers without an igniter (electronic ignition), the spark is generated by the batteries; perhaps they have run out.
The battery capacity is not always 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, it 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 bang

After cleaning the igniter the situation returns to normal.

As a result, it 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 bang. After cleaning the igniter the situation returns to normal.

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, it 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 bang. After cleaning the igniter the situation returns to normal.

The membrane of the water unit has exhausted its resource

This element, made of a polymer 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 truly unsatisfactory, it must be replaced.

Control module board burnt 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.

Advantages and disadvantages of geysers Oasis

The main advantage of the Oasis instantaneous water heater is its affordable price compared to its competitors. Other advantages that this German boiler has are as follows:

• Stable water heating;
• Sensors for protection against malfunctions;
• The main system module is located away from the hot water pipe, which increases the service life;
• Convenient and understandable instructions for use and repair included in the package;
• Various “Winter-Summer” modes for convenient use at different times of the year;
• An installed mesh filter that protects the system from debris getting inside;
• The radiator is made of heat-resistant alloy, which reduces the accumulation of scale;
• Maximum efficiency for its power;
• The Oasis column can ignite automatically using a special electronic ignition.

Important! In addition, some models are equipped with a magnetic filter against corrosion and turbocharged exhaust systems for combustion products. Among the shortcomings, users highlight the control unit, which is prone to breakdowns, especially during the period after the end of the warranty period.

The lack of a burner flame control module is also considered a disadvantage

Among the shortcomings, users highlight the control unit, which is prone to breakdowns, especially during the period after the warranty period expires. The lack of a burner flame control module is also considered a disadvantage.

Oasis instantaneous water heaters

Gas instantaneous water heater Oasis SG-20

The instantaneous type of water heaters has become widespread. The key feature of this model is that water will be heated even at low pressure in the water supply system.

According to user reviews, the Oasis instantaneous gas water heater has a number of advantages:

1. The device turns on only when the water is turned on. This helps save energy resources.
2. Functions regardless of electricity, because its operation is carried out using replaceable batteries.
3. Depending on the season, you can choose the heating mode.
4. The device is designed according to a special design that helps reduce costs.

Do-it-yourself troubleshooting

Even with proper installation and proper care of water heating equipment, the owner of a gas burner may encounter some malfunctions, which most often arise after long-term operation of the unit.

The activities of the company, representing gas water heaters under the Oasis brand, are based on absolute financial transparency and complete loyalty regarding relationships between clients and partners, taking into account the accumulated unique experience. It is thanks to these features of activity that Oasis water heating equipment becomes more popular every year.

Source

Brief operating instructions

Before connecting the device to the water supply system, you should drain the liquid from the pressure pipeline, which will minimize the risk of contamination entering the equipment during the first start-up.

After connecting the piping system to the unit, the correctness of all connections is checked, as well as their reliability and tightness. For this purpose, a standard water fill is carried out and the shut-off valves for cold water supply are opened in conditions of a closed water supply valve. Leaks at connections detected during test filling are completely eliminated.

The next step is to check the electronic ignition of the burner:

• installing batteries in a special compartment;
• opening the hot water tap;
• monitoring the presence of an electronic continuous discharge occurring in any area from the spark plug elements of the electronic ignition to the sectional part of the burner.

The absence of electronic discharge will require verification of the correct installation of the entire system in accordance with the electrical connection diagram below.

Electronic ignition of the burner is possible if the system is correctly connected according to the diagram

At the final stage of preparation for operation, the tightness of all connections of the gas supply system should be checked when the unit is not operating and the shut-off valves are open. For this purpose, it is recommended to use “soaping” of connections or other safe methods; a bubbling soapy composition indicates a gas leak.

An important condition for the trouble-free operation of the Oasis column is the proper setting of the water temperature, which can easily be done in several basic ways:

• setting the water regulator to the extreme right position when turning the flame knob until a comfortable heating temperature is obtained;
• turning the gas regulator and changing the gas supply to the main burner;
• change in the level of water consumed.

It should be remembered that excessive heating of the water inside the heat exchanger is the main reason for the rapid formation of scale and blockages. This entails failure of the unit.

Equipment maintenance involves:

• cleaning the burner;
• cleaning of all filter systems;
• cleaning the heat exchanger;
• replacement of seals in gas and water supply systems;
• regularly checking the tightness of systems;
• checking the functionality of sensors;
• lubrication of moving elements.

Attention! Any preventive measures are carried out only after the standard disconnection of the water heater from the gas supply system.