Gas columns Neva 4513 features device and causes of failure

Having a dependable heating system is crucial for maintaining a warm and cozy home. For many homes, gas columns like the Neva 4513 are essential for providing heat and hot water. This article will examine the characteristics and internal mechanisms of the Neva 4513 gas column in addition to discussing typical failure reasons.

In homes, the Neva 4513 gas column is a popular option for hot water and heating systems. Many homeowners choose it because of its effective performance and small design. Its capacity to deliver instantaneous hot water on demand, doing away with the need for a separate water tank and conserving important space, is one of its primary features.

To understand how the device works, one must comprehend its parts. Typically, the Neva 4513 is made up of a burner, heat exchanger, gas valve, and a few safety features. Together, these parts effectively heat water and distribute it throughout your house, guaranteeing a consistent supply of hot water when you need it.

Like any other appliance, the Neva 4513 gas column can malfunction over time even with its high level of reliability. These devices may malfunction for a number of common reasons. A common problem is a malfunctioning ignition system, which can make it difficult for the burner to light up correctly. Inadequate combustion can also be caused by issues with the gas supply or ventilation, which can lower system efficiency or cause it to shut down entirely.

To guarantee your Neva 4513 gas column performs as intended for the long run, timely repairs and routine maintenance are required. You can prolong the life of your heating system and prevent future expensive repairs by promptly addressing problems and setting up routine inspections. Being aware of the features and possible weak points of the device enables homeowners to maintain their insulation and heating systems proactively.

Gas columns Neva 4513: features, device and causes of failure

1. Advantages and disadvantages
2. Positive qualities
3. Negative points
4. Technical characteristics
5. Operation
6. Possible malfunctions

The availability of hot water in the home is a constant source of concern for Russian residents. A person has access to hot water, but it only functions sometimes. Such a phenomenon is uncommon in private homes, where someone resides. In addition, most recently constructed apartment buildings have individual heating systems.

When it comes to water heaters, our countrymen favor foreign manufacturers that offer higher-priced but superior equipment.

We will discuss the Russian-made NEVA 4513 heater in this article. Let’s examine the benefits and drawbacks, as well as outline the most typical issues and solutions.

One of the many heater models made by the top domestic manufacturer, BaltGaz Group, is the NEVA 4513. Since its founding in 1995, the company has grown to become Russia’s top producer of home appliances.

The engineers who designed this model claim that it was made especially to function in challenging environments, which are typical of our nation. Low gas pressure or irregularities in the water supply? It’s manageable for NEVA 4513. Because of its capabilities, this heater has guaranteed a demand from customers.

Water heaters are classified into two categories based on how they work.

• Accumulative – better known as boilers. They are distinguished by the presence of a thermos tank, in which heated water can be stored for several hours.
• Flow-through – popularly called columns. Heat water as it comes in. At the heart of the work of such a unit – a heating element that increases the temperature of water in contact with it.

There is no all-encompassing best option because each type has pros and cons of its own. The conditions of use should be taken into consideration. For instance, a boiler in a private residence is ideal for continuous use. Owing to its small size, boilers are typically located in apartments with limited open space. Additionally, the boiler doesn’t make you wait for heat like a boiler does.

The flow heaters that run on gas are referred to as NEVA 4513. Customers report that as soon as the boiler is turned on, the water temperature increases almost immediately. The model’s number of advantages is hardly greater than its number of disadvantages. It is worthwhile to carefully consider and weigh them before making a purchase.

Device of the gas column "NEVA" and the principles of operation

As water enters the water block, pressure builds up inside it. An automatic flow sensor inside the block alerts the control unit to the pressure’s existence. Additionally, the gas valve is opened when the water block is pressurized, which is typically done mechanically depending on the column. The device has a battery compartment, often located in the lower section, that supplies the control unit directly when pressure is present, causing the ignition to turn on and stay lit.

Following the opening of the solenoid valve, which allows the gas to reach the burner, the ionization electrode detects the gas burning and notifies the power supply unit, which then turns off the electric ignition. Heat exchangers, which are typically found in the upper section of columns, are what heat water. A general understanding of the principles governing the operation of most gas columns requires this information, which also provides a basic understanding of the principles governing their repair.

Advantages and disadvantages

Positive qualities

• Ease of use. It is enough to read the manual once to immediately understand the functionality of the device. It is also worth noting that the NEVA 4513 is a wall-mounted unit and is easy to install.
• Primitiveness of the design. The simplest "stuffing" is able to provide not only stable performance of its functions, but also increased reliability.
• Despite the above point, this model has a built-in safety system. It is able to control the gas supply and heating temperature.
• By the standards of flow water heaters, NEVA 4513 has good technical parameters.
• The boiler has quite an affordable price, as well as new parts for it in case of their replacement.
• Almost all the main elements of the heater are suitable for repair.
• The model has a small size and an eye-pleasing design.

Let’s now discuss the drawbacks, a list of which was created based on feedback from customers.

Negative aspects

• Malfunctions occur too often. Of course, the heater is easy to repair and spare parts are inexpensive, but interruptions in operation are unlikely to please anyone.
• Increased noise level.
• Failures of automatic ignition. According to users, with this problem will have to face after one or two years of operation of the boiler.
• If the water pressure is too low, the boiler starts to overheat.
• If the water pressure, on the contrary, too strong, the boiler does not have enough power to cope with heating.

You can see that the drawbacks are pretty substantial. However, a lot of customers still select this specific model. It’s a fact that a lot of the issues mentioned above have simple solutions. We will explain how to do it later on.

Technical characteristics

The NEVA 4513 model comes with a two-stage hydraulic flame modulation system. The unit has a power range of 22 to 25 kW. This is more than sufficient to supply hot water for one apartment or private home.

As was already mentioned, the heater measures only 65x39x23.7 cm. It weighs only thirteen kilograms. These specifications make it possible to install the boiler more easily and even fit it into a tiny apartment. [NOEDIT]

The auto ignition on this model is its primary feature. Just opening the gas tap is sufficient to run the boiler. All you have to do is turn off the gas.

The pressure of the heating medium ranges from 30 to 60 kPa. Thirteen liters of water per minute at 25 degrees Celsius is the water consumption. 2.5 liters per minute is the minimum flow rate. 15 kPa of system pressure is the minimum needed for automatic ignition.

NEVA 4513 can operate on liquefied gas as well as natural gas. First, 2.8 cubic meters are consumed every hour, and second, 0.94 kilograms. Homes without a gas pipeline connection frequently have this model installed. It operates on cylinders, so you won’t need to purchase a new unit when connecting natural gas.

It is also worthwhile to discuss the model NEVA 4513-M in brief. It is a better model than the first one. The electronic display is one of the nicer additions. Additionally, it has a marginally higher power output (26 kW) than the NEVA 4513.

Faults of the gas column Neva: device, errors, repair with your own hands

Don’t panic if your water heater breaks down; our article can assist. The gas column "Neva" may malfunction for a number of reasons, but we can list the most common ones. Now, let me explain how to fix the "Neva" models at home.

Crucial! You risk losing free service if you disassemble your appliance yourself while it’s still under warranty.

Neva Lux error codes

The fault code is visible to the user on the display. When the column self-diagnoses, it outputs a numerical value.

Е0

The system does not receive fuel. Examine the gas valve; it’s possible that the supply was stopped for some time.

Е1

The flame sensor does not send a signal to the control board. It’s been more than a minute.

Possible outcomes:

1. Air in the gas line. This happens when the appliance is turned on for the first time or when it is turned off for a long time. Open and close the hot water several times until the burner lights up.
2. Fuel supply valve is not fully open. Unscrew the tap.
3. Insufficient pressure in the gas line.
4. Run out of fuel in the cylinder. You need to replace the cylinder.
5. The wiring between the water unit and the flame sensor, solenoid valve is broken. Inspect the loop for damage to the insulation.
6. Electrode has moved out of place, does not reach the burner. Return the part to its original position.
7. The flame electrode and flame sensor are covered with soot. The parts can be cleaned with a brush.
8. Contacts between ignition plug and high voltage wire have come loose.
9. Nozzles clogged with soot.

Remove the burner in order to clean it. Remove the spigot nut and disconnect the wiring.

After removing the two collector bolts, unscrew the burner fasteners as well. The holes are cleaned using a hairbrush and soapy water after disassembly.

The process of reverse assembly is done after washing and drying.

Code E3

Prior to the flow sensor signal being received, the solenoid valve was activated. There is a problem with the valve.

An entirely new part is installed. The electronic component has malfunctioned. The diagnostic process is handled by a specialist.

Error E7

The appliance still won’t light up or goes out after seven attempts to turn it on. The fuel valve should be opened as far as possible. There is soot buildup on the electrode of the ionization sensor, or it is misaligned.

It needs to be close to the burner, in the flame zone. Using a brush to clean. There is a problem with the electric valves. The gas or water unit has overheated. swapping out of components.

Error E8

The sensor for draft has tripped. Causes: Damage to the sensor. Verify that the contacts are firmly seated before replacing the component.

Chimney blockage caused by soot or debris. Get in touch with the utility services if you are unable to clean the passage with your hands.

Neva 4511, 4513, lux 5611, how to work with the devices.

Device schematic diagram 4511 and 4513 Neva

1-control knob for water flow; 2-control knob for gas flow; 3-water temperature display; 4-lining; 5-inspection port; The fittings for the cold water inlet (6), hot water outlet (8), gas connection (7), spigot of the gas venting device (9), and fixing holes (10).

Switching on the apparatuses:

• First, the batteries must be inserted.
• Open the gas valve.
• Open the cold water tap.
• Set the knobs 1 and 2 (see picture above for model 4511, Neva deluxe 5611) to the minimum position.
• Turn on the hot water tap. At this time, spark ignition occurs between the candle and the burner, then the burner ignites and water heating begins.
• Check visually if the burner is lit.

Knob No. 1 controls water flow, and knob No. 2 (for the 4511 model) controls water temperature. Here are the operating guidelines for the Neva 4511 and Neva Lux gas boilers.

According to user experience with the Neva Deluxe 5611 model, if all air is removed from the gas systems, burner ignition will occur during initial ignition or following a long shutdown. because spark ignition only lasts for approximately eight seconds.

To prolong ignition, the hot water faucet needs to be opened, closed, and then reopened. This needs to be continued until the burner is ignited and all air has been released from the pipes.

For model 4513, it is possible to adjust the temperatures in the following ways:

• Turn the lever of the device counterclockwise, this will increase the temperature and clockwise will decrease it.
• Dilute the water directly with the faucet.
• Change the flow rate of water passing through the apparatus using the water faucet. Increasing the flow rate will decrease the temperature and vice versa.

Shutdown:

Turning off all hot water taps is sufficient; just to be sure, make sure the burner is completely out of the way.

Overnight shutdown is required:

• Close the hot water valve.
• Shut off the gas supply to the appliance.
• Shut off the cold water tap.

Advantages of the Column Neva 4511 include its long battery life, low cost, and ease of finding replacement parts for repairs. Disadvantages include user complaints of subpar quality and frequent malfunctions.

The Neva Lux 5611 water heater has a noisy operation and insufficient capacity for two water intake points. However, it has some advantages, including being small, safe to use even at low water pressure, and equipped with sensors.

External factors of inoperability of the column

1. Incorrect connection to the water supply line outlet spigot. As a consequence, the column does not work after installation or after plumbing works. Check the correct connection of the spigots: the outlet spigot is marked in red and it is connected to the hot water line.
2. Low water pressure in the system, as evidenced by a weak water jet from the faucet.

For suburbanites whose water pipes are supplied by water towers, the issue of low water pressure is pertinent. When purchasing a gas water heater in this situation, you should carefully review the equipment’s specifications, particularly the lowest water pressure that is allowed.

The filter that sits in front of the heater frequently becomes clogged, which lowers the water pressure. This can be verified by contrasting the trickle of water from the cold and hot taps. If the cold tap trickle is normal and not thin, the filter needs to be checked. Its cleaning will solve the hot water issue.

There are also instances where the water heater barely warms up when you turn it on, and after a short while, it completely shuts off. Everything is to blame for the faucet’s flaw. It mixes cold water with hot water, which makes the water in the heater overheat and activates the shut-off mechanism. To guarantee this:

• The faucet supplying water to the water heater should be closed.
• Open the hot water. If the water runs, it means that the faucet is defective.

What else you need to consider when troubleshooting a gas heater?

1. The gas supply filter is clogged causing the heater to not receive fuel for operation. The malfunction can be eliminated by cleaning the filter. If this type of breakdown occurs during gas supply works, then the cause may be in the air blockage. Air trapped in the pipe, it is necessary to open the valve on the gas, drain and then the column will be restored to work.
2. Deterioration of the draught or its disappearance. This problem most often happens with columns that have an ignition burner, in which there is no draught sensor, but a tube connects the chimney to the ignition point. If there is no draught, the combustion wastes pass through this very tube and go to the igniter, which leads to its extinction. In electric ignition water heaters, the draught is controlled by a temperature sensor.

Seek leaks in the kitchen. Any plastic doors or windows should be opened to allow fresh air to flow through them. The expert inspects the chimney to ensure optimal operation. Since the chimney serves as a channel for ventilation, there should be a draught even when the heater is off. When the master places a little piece of newspaper near the chimney inlet, it indicates that the chimney needs to be cleaned. Clogging can be caused by a variety of things, including soot, trash, and even bird nests.

It is possible that an antenna or another object placed directly above the chimney on the roof is the cause of the smoke being trapped in the chimney.

We examine the Neva 4513 gas column’s features, internal operations, and frequent causes of malfunctions in our article. Our goal is to give homeowners a comprehensive grasp of how this gas column works and potential problems down the road. We enable readers to make knowledgeable decisions about their home heating systems by breaking down the essential parts and functions of the device into easily understood language. Whether you’re thinking about installing a Neva 4513 or need to troubleshoot an existing one, this article will provide you with the information you need to make sure your house is kept efficiently warm and comfortable.

Additional features of operation: faults and methods of their elimination

While in use, the appliance might experience malfunctions. For instance, a closed gas shut-off valve could be the reason if it doesn’t turn on. Weak water pressure can also occasionally be the cause of a malfunction. In the first instance, the stopcock needs to be opened; in the second, calling a plumber is advised.

The reviews you were able to read above regarding "Neva-4513" mention that occasionally there is an issue with no spark discharge when turning on the hot water faucet. It can be assumed in this instance that the water regulator is not receiving enough water pressure at the inlet. Sometimes this issue is indicated by the batteries being completely rarefied or not present at all. You must install or replace the batteries in order to solve the issue. An electrical network contact may be broken if the spark discharge is excessively weak.

If the appliance turned off after a brief period of use, it’s possible that the draught sensor activated, signaling that there isn’t one in the chimney. A gap between the connection spigots and the gas discharge pipe may also be a sign of this kind of issue. Occasionally, the sensor designed to prevent water from overheating trips after a brief period of operation. Heat-resistant, self-adhesive tape or other materials with comparable properties can be used to seal the gaps. However, you should turn the knob to increase water consumption and decrease the amount of gas supplied to the appliance when the protection sensor is activated.

The most common malfunctions

The following issues with the water heater are suggestive of one or more component malfunctions:

• The burner does not light;
• the burner does not go out;
• the heater shuts down spontaneously;
• insufficient water heating;
• water overheating.

Let’s examine how it appears in use. When you turn on the faucet in the kitchen or bathroom, you anticipate receiving hot water. However, the burner does not ignite as anticipated. In a different scenario, the column operates normally at first but quickly shuts off even though you left the water tap running.

The boiling water from the tap nearly burned you when you tried to wash your hands. Alternatively, imagine this: the water is hardly warm when you’re about to take a shower. An extremely uncomfortable situation: the burner is still burning even after you have turned off the water.

There are numerous possible causes for these issues. As with dead batteries, they can occasionally be found lying on the surface. But in order to get to the bottom of things, you frequently have to carry out one difficult procedure after another. Older models, like the Neva-3802, have a piezo ignition that requires manual control; to turn it on, you must press two buttons at once.

Lack of experience, professional equipment, and in-depth knowledge of gas heater operation principles hinder the work of home masters. Thus, it is important to consider the advantages and disadvantages before beginning diagnosis and repair, adhering to the "do no harm" principle.

Problems due to lack of power supply

Neva water heaters run on gas, but electricity is necessary for them to function. Stable power supply is required for the appliance’s control unit, solenoid valve, spark plug, and other components. Two LR20 alkaline batteries, which are housed in a different, conveniently accessible compartment, power it. Keeping at least two LR20 or CR20 batteries on hand is recommended for the gas heater with electric ignition to operate trouble-free.

When the water tap is turned on without electricity, there won’t be a spark discharge or it will be very weak, and the heater won’t operate.

Discharged batteries, oxidized battery compartment contacts, or a broken circuit can all be the cause of low power.

The batteries can run the display if they are not completely dead, but they won’t have enough energy left over for other high-demand tasks. Thus, even if the display appears to be functioning correctly and displaying temperature information, you should still clean the battery compartment’s contacts and replace the batteries with brand-new, comparable, or lithium CR20 batteries. Without removing the cover, you can access the battery compartment at the bottom of the device. When inserting the batteries, be sure to pay attention to the polarity.

Without taking the device apart, you can reach the battery compartment cover, which is situated at the bottom of the casing. In other words, you can replace the batteries and clean the contacts yourself. removing the reasons why water doesn’t heat up enough.

Examine the heat exchanger tubes for scale if the speaker still won’t turn on even after new batteries have been installed.

The normal flow of water is impeded by scale formation on the inner surfaces of the pipe, which may cause the column to shut down. Additionally, a thick layer of calcium and magnesium salts greatly lowers the device’s thermal conductivity. As a result, the water is not heated to the appropriate temperature as indicated in the documentation that comes with the device. Ordinary citric acid is diluted with warm water and used to remove scale; the volume of the solution should match the heat exchanger’s capacity. Table vinegar is another option.

Keep in mind that the heat exchanger and gas water heater should be cleaned once every 12 months according to the instruction manual. It might be essential to clean the heater frequently if it is used extensively and hard water is used, as this accelerates the formation of limescale.

It will be necessary to remove the heat exchanger and cover in order to accomplish this. Make sure the gas and water inlet pipe taps are closed before disassembling. Pulling the gas and water adjustment knobs in your direction will remove them. A screwdriver can be used to remove the screws that are located beneath the handles on certain models. Additionally, remove the screws from both sides that secure the casing to the bracket from below.

Cut the cables that link the control unit to the display and the water temperature sensor. Pull the cover towards you and slide it up to remove it. Looking ahead, we observe that the cover is installed in the opposite order following the repair.

Consequently, after removing the cover, the heat exchanger needs to be removed. Take out the plug beneath the water unit and empty the heat exchanger of any leftover water. Remove the old gaskets and disconnect the column connections from the hot and cold water pipes. Remove the metal plate that is holding the heat exchanger from the top by unscrewing two screws.

Take out the heat exchanger and put it in a container with hot dish soap or regular household soap solution. After fifteen minutes, clean the grate and other surfaces of soot with a soft brush. Use a powerful water jet to thoroughly rinse the grille and other surfaces.

A warm solution of citric acid is made by adding 100 grams to one liter of water that has been heated to 40°C in order to remove scale from pipes. After 15 minutes, the resultant solution is drained and poured into the heat exchanger’s pipe. Water is used to flush the pipe. Repeat the process if needed.

Use fresh gaskets to seal the split joints when reinstalling the heat exchanger. To prevent crushing the gasket, do not overtighten the joints. If not, the transmitted edge might wind up in the water flow pipe and produce unwanted sounds. The same outcome will result from misaligning the gaskets when installed.

Damage to the gas and water assembly

The gas/water assembly needs to be disassembled in order to assess the state of the diaphragm and stem if power is provided and the heat exchanger is clean but the heater does not turn on. The procedure for disassembling the column’s gas-water unit, showing which disconnected joints need to be sealed with elastic gaskets to prevent leaks of water. There is an alphabetical list of steps.

The necessity of closing the gas and water supply taps while performing repairs should be emphasized once more. Together with the gas unit, the water unit is disassembled.

Unscrew the heat exchanger socket’s nut, disconnect the gas and water supply lines, and open the wires that connect the control unit’s solenoid valve to the microswitch.

Remove the screws that hold the burner collector pipe and the gas-water unit together. Now that this assembly is out of the way, put it on the table to continue disassembling.

The gas unit is disconnected from the water unit and placed aside after a few screws are undone. After that, just use the water unit. Take out the screws that are positioned all the way around the unit. Divide the unit into two sections, where the diaphragm is situated.

After removal, the diaphragm is examined. Most of the time, the inability to turn on the column is caused by its stretching or rupture. The replacement diaphragm is inserted into the conventional socket during reassembly. The stem needs to be positioned so that it advances gradually and doesn’t jam.

When the solenoid valve must be replaced

The heater won’t turn on and gas won’t enter the system if the solenoid valve malfunctions. The appliance’s valve may be taken out, but the control unit must remain connected.

By moving the microswitch pusher to simulate a water supply to the system, you can test the valve’s capacity to retract, hold the stem, and open the burner’s gas passage. Replace the valve if it isn’t functioning. To accomplish this, unplug the cables, take out the water-gas unit, loosen the fasteners, take out the old valve, and install a new one.

Burner malfunction

The absence or weakening of the ignition spark causes the spark plug electrode to move or accumulate soot on it, which prevents the column from turning on. Additionally, an increase in the concentration of gas in the combustion chamber may result from issues with the spark plug electrode. This explains why there is a loud popping sound when something ignites. The arrows point to the most troublesome parts of the water heater burner, such as the electrical wire connectors and the spark plug electrodes, which require soot removal.

To get the spark to "work" and get rid of unnecessary noises, all you need to do is clean the electrode with sandpaper and put it back in its original location.

The burner will lose intensity and start to smoke if it is clogged. The water does not heat up to the desired temperature as a result. To remove the burner before cleaning, unplug the spark plug and ionization sensor cables, undo the collector pipe’s nut and two screws, take out the collector, undo two more screws, and disconnect the burner unit.

To clean the parts’ surfaces, use a brush. Use an urn that is the right size to clean the interior ducts. Rinse the components with dish detergent after dusting them off, then reinstall them once they have dried. A well-maintained, functional burner has a blue flame.

Operation

Gas is a material that is extremely harmful to human health. When using gas equipment, utmost caution is required.

Even though the device is easy to install and adjust, it is still advisable to leave this task to the experts.

There are specifications that need to be met in the room that houses the boiler.

• Have a chimney with an intensive draught, through which the combustion waste will be removed. It is desirable to place it as close to the boiler as possible.
• Have good ventilation, through which a constant supply of oxygen will be provided.

Placing the heater in the kitchen or another non-residential area is preferable. They ought to have a minimum volume of 8 cubic meters.

In the event of a breakdown or the smell of gas, you should turn off the boiler’s supply right away and leave it off until the issue is fixed.

Fix minor flaws yourself with your hands. assuming, of course, that you have faith in your skills. Generally speaking, though, you should call experts at home or visit service centers for assistance.

Repairing the water heater

You must accurately diagnose the Neva gas heater in order to resolve its malfunction on your own. One of the water heater’s parts wears out and needs to be replaced over time, while the other part just needs to be maintained on a regular basis. There are a number of malfunctions in this instance, each with distinct symptoms. We suggest grouping all issues that emerge based on the following characteristics:

• the burner does not light when the DHW tap is opened;
• After running for 5-10 seconds, the unit turns off;
• the flow heater starts and functions correctly, but does not heat water well;
• other problems.

Advice: The water unit’s rubber membrane most frequently tears, cracks, or stretches in gas columns. This is a consumable spare part that needs to be kept on hand at all times. The picture displays a sample of the part.

What to do if the speaker does not light up

Checking the condition of the batteries and battery compartment contacts (which may be oxidized) is the simplest thing to do when the water heater does not respond in any way when hot water is turned on. After giving them a thorough cleaning with sandpaper, replace the batteries and give it another go.

Important point. Since the household appliance uses very little energy, its glowing display in no way indicates that the batteries are fully charged. The voltage required to activate the electromagnet and cause spark formation may not be sufficient if the batteries are "overcharged." The manufacturer’s official website lists the set of cells’ characteristics as sufficient for approximately 250 hours of work.

Where the battery compartment is located and a bottom view of the device

Does the power supply seem to be operating properly? Next, proceed with the gas heater’s diagnosis using the subsequent algorithm:

1. Make sure that there is enough pressure in the piping to turn the appliance on. Perhaps someone accidentally closed the shut-off valve or the regulating valve on the heater itself (right).
2. If there is a strainer on the incoming water supply, check its condition and clean it if necessary.
3. Remove the front panel of the unit and open the DHW tap, observing the stem. If it does not move at normal water pressure, the reason lies in the diaphragm "frog".
4. The rod moved, released the switch button, but nothing happens? There is a problem with the electrical circuits. It is necessary to check the microswitch and dial other wires that supply the controller and solenoid valve.

Advice: Always shut off the gas mains when repairing a Neva gas heater and disassembling the unit.

Remove the plastic handles from the control valves and unplug the display connection connector in order to disassemble the front cover. Two self-tapping screws that are positioned at the appliance’s bottom hold the back panel in place. Pull the cover upward and toward you to unscrew it and remove it.

It is required to unplug the connector in order to examine the limit switch using a multimeter or a lamp tester. The circuit must be open when the button is pressed. The wiring, on the other hand, seldom fails unless you notice a fallen wire, which is easily fixed.

The instructions below should be followed in order to remove and disassemble both the gas and water assemblies in order to replace the diaphragm in the Neva 4511 column:

1. Close the cold water and gas supply, unscrew both supply connections with a horn wrench. Also disconnect the copper tube leading to the heat exchanger.
2. Disconnect the connectors of the controller and microswitch.
3. The entire water-gas assembly is mounted on 2 screws to the burner flange. Unscrew them with a Phillips screwdriver and remove the assembly.
4. Disassemble the "frog" and replace the diaphragm and with it the small O-ring shown in the photo.

Note: Although the replacement can be completed without disassembling the entire unit, doing so is incredibly inconvenient. The deconstruction technique outlined here can also be used to disassemble other gas column models, such as the Neva Lux 4510, 5611, and so forth.

Watch the following video to learn how to replace a flow water heater’s membrane:

Spark is present – no ignition

If the spark plug exhibits visible sparking but the burner is not operating, you should look into the following:

• if the spark electrode has not moved relative to the nozzle;
• Check whether the draught or overheating sensor that opens the solenoid valve circuit has failed;
• See if the high voltage wire is poking through to the body;
• whether the spark has been weakened by a fouled plug or discharged batteries.

The electrode should be positioned no more than 5 mm above the nozzle of one of the burner sections. You can easily adjust an out-of-position plug by simply bending the plugs. Occasionally, removing soot from the electrode’s end is sufficient to boost spark power.

By shutting off their contacts directly, the traction and overheating sensors’ functions are verified. Place jumpers on every gadget in turn, including the mixer’s water reservoir. In case of a flame arising, swap out the faulty sensor.

After starting, the burner goes out

The following could be the cause if the column’s flame correctly ignites along with the appearance of the water intake and then extinguishes after five to ten seconds:

• Ionization sensor does not work (does not detect fuel ignition);
• no draught in the chimney, which overheats the corresponding sensor and opens the electrical circuit;
• Maximum heating is set at low water flow rate, which causes its temperature to quickly reach 90 ° C and triggers the overheating sensor.

The user is responsible for fixing the final two issues, which are not related to the water heater. Occasionally, an excessively stretched diaphragm can produce the damping effect by moving the stem immediately following the water supply and then releasing it once the pipe’s pressure returns to normal.

Three things can go wrong with the flame sensor:

1. The electrode is covered with a thick layer of soot and requires cleaning.
2. The "nose" of the device has bent downwards from prolonged exposure to temperature and needs to be bent upwards slightly, as demonstrated in the video above.
3. The appliance is out of order and needs to be replaced.

In the other scenario, the burner keeps running even though the DHW tap is closed. This stem jams, and it can be cleared by disassembling and cleaning the water-gas block.

Why does not ignite the column of the above models, as well as for neva transit?

The device failing to ignite is one of the most frequent reasons for malfunction. That is, when you open the faucet, the heater does not immediately begin to heat the water. Let’s examine potential breakdown variations:

The water pressure (for all Neva models) is below the minimum permitted.

It indicates that the device’s weak signal prevents it from sensing the flow. From a technical perspective, it appears that the force of the water pressure causes the diaphragm to change shape. The unit’s insufficient structure may be the cause of the deflection. With the aid of the regulator on the apparatus, gas columns provide a way to address the issue with the water head.

The main breakdowns in the operation of the gas heater Neva 4513

My Neva 4513 gas flow heater is connected to a piezo ignition. Could you explain why the water wasn’t heating up properly? How should I proceed to resolve the issue, in your opinion?

An obstruction within the heat exchanger was the initial issue. The heat exchanger’s walls have a high density of scaling, which interferes with the necessary water heating and causes the water to heat up slowly. The heat exchanger needs to be cleaned in this situation. Second, the heat exchanger overheats frequently. This results from using the appliance improperly. As the temperature rises, scale forms more readily and slows down the liquid’s heating process. The heat exchanger in this instance needs to be changed.

In my home, I have a gas heater of this model. After approximately five years of operation, the heat exchanger began to leak. Three months after the problem was not resolved by repair, a new unit was bought. According to the installer, it needs to be cleaned and serviced once a year. I serviced and cleaned it. This unit has generally operated for three years, and the heat exchanger’s leakage is the same cause of failure. Why is it possible for this to occur?

The likelihood is that the heat exchangers don’t last long because of the low quality of the water.

This brand’s model is connected to a private residence. Could someone please explain why sometimes the water heats up too much? What’s the issue?

Most likely, the regulators are installed incorrectly. For the summer, they have to be switched. Reduce the amount of gas on the burner block using the gas control knob before increasing the water heater’s flow.

The battery-powered gas flow heater Neva 4513 had a malfunction. I hold the igniter in this position for approximately five minutes after it ignites. I then switch it to operating mode, but the device dims. What causes this to occur?

Make an effort to take the liner apart, take out the gas supply tube for the wick, and clean it. Dust enters this spigot through open windows, so this measure should generally be done once a year, ideally at the end of summer.

I’m unable to determine why the appliance sometimes doesn’t heat up enough. What treatments are available?

The unstable burner flame is likely the result of a malfunctioning diaphragm, and the gas valve is not being pressurized by the stem. The water block in the gas fitting needs to be removed. After that, remove the water unit’s cover, check for tears in the diaphragm, and replace it if necessary.

Last year we connected a gas heater of this brand in the house for heating. Recently there has been a problem at the ignition point. When a hot water request is made, the ignition of the ignition device is ignited. It ignites and suddenly goes out, and then the water heater turns on again. And so about 2 or 3 times. Then the operation of the unit will normalize. Can"t understand why the igniter fire is not lighting the main burner? What can happen? At this point the water heater operates in this way. A spark is formed, from which the wick is ignited. After this, the process of providing a spark stops, the wick works for a few seconds and goes out. The appliance gives a spark discharge again, the wick is ignited, the spark discharge disappears and after a short period of time the main burner ignites.

Maybe there’s an issue with the ionization sensor. It is essential to inspect it first. Naturally, replacing it is preferable, but in the event that this is not possible, you will need to clean it with an emery cloth. Utilizing a metal brush, clean the burner as well. It is crucial to confirm that the burner flame is blue, not yellow, after performing these procedures. The flame must also touch the ionization sensor.

At the end of the year, we installed and turned on the Neva 4513 M automatic gas heater. However, as winter arrived, issues occasionally surfaced, including low gas power and even impure gas. Assist in resolving the issue?

There is a setting screw at the base of the device. When the burner is on, try rotating it to the left and adjusting the flame size to your preference. In summer, you can turn it back. The system’s pressure is actually insufficient if this operation fails to resolve the issue.

About four years have passed since the water heater was installed. The igniter stopped working recently, and if you try to light it with matches, the wick goes out as soon as the regulator changes to the operating mode. How can it be fixed?

I noticed the same issue. Masters clarified that a thermocouple replacement is necessary.

Identify the gas water heater’s problem. The unit shuts off when you turn on the hot water faucet. The thermocouple was cleaned, but it didn’t work. Examined the diaphragm and found it to be intact, but a new one was still installed. There is a slight drop in water pressure. What is the malfunctioning cause?

It can be assumed that the draught is insufficient or the draught sensor is defective. Make sure to check them. Sometimes instead of the draught sensor, a bent tube is installed on top of the column. This is used to supply the air that keeps the combustion going. When there is a problem with the draught, smoke gases, not air, pass through the tube. There is a lack of oxygen for the burner, it goes out. In addition, the flame of the ignition burner must be checked. It should completely cover the thermocouple. If this does not happen, it means that the thermocouple is not heated in the best way and does not give the ignition signal for the main burner.

I found a significant issue yesterday: the Neva 4513m home gas heater started to shut off while in use. Could you please let me know what the cause is and how to fix it?

The water block most likely has a damaged diaphragm. It needs to be replaced because it might be worn out or deformed. Additionally, because the gas solenoid valve contains a solenoid coil that may malfunction, this fault is occasionally linked to it. The coil can only be replaced; it cannot be repaired.

Tell me about problems with gas heaters. The appliance eventually shuts off a few minutes after turning on, and the ignition burner can only be ignited with matches. What actions are possible?

The most likely scenario is that the back draft sensor detects no draft in the chimney, which triggers the unit to shut off. Checking the flue ducts is a good idea. When the temperature reaches 90C, it is also possible for the liquid in the heat exchanger to become overheated. This leads to the activation of an overheating sensor, which extinguishes the burner flame. Use the regulator to reduce the gas flow on the main burner in order to cool the water.

When the gas heater begins to burn and may soon go out, how can you determine what the issue is? How should a breakdown of this kind be fixed?

In the first case, the cause is a blockage in the chimney. Apparently, there is a large amount of soot plaque and combustion products are not fully discharged, which will trigger the back draft sensor. It disconnects the thermocouple and the burner flame of the appliance will go out. Another cause is increased wind, which can extinguish the unit"s flame if there is a draft in the room. Consequently, the safety system will activate and block the gas supply. Do not allow a strong gust of wind. But it is not recommended to block the access to fresh air completely, as the appliance must be operated with an open window. When operating without fresh air, the draught will disappear and the flame will start to go out.

Gas flow water heater Neva 4513 M in use. Could you please explain why the water is heated so much? How should the issue be troubleshooted?

Excessive pressure could be one of the causes. Set the gas regulator to the minimum gas flow to the burner device and the temperature regulator for the water heating to maximum flow. The water that exits the unit is somewhat cooler thanks to this technique.

Why does the gas burner flap erratically and takes longer to ignite?

Either the igniter spark is weak or it does not reach the main burner. The ignition mechanism and nozzle need to be cleaned. Proceed with the adjusting procedures after that.

Problem with the gas heater. I want to start, and although a spark is generated, the ignition burner does not ignite. What’s the issue?

There is debris in the ignition burner nozzle. Blowing out is essential. The location of the ignition electrode is incorrect. Make the necessary adjustments. The gas line contains air. Take out the air.

Semi-automatic Neva 4513p gas heater installed and connected. The appliance is not working properly; it turns on for a few seconds and then shuts off. It usually begins at night after the device has been in standby mode for a while. Furthermore, it doesn’t shut off again if it keeps heating water. The water heater ignites when the microswitch clicks repeatedly, and it runs smoothly for about a week. What might be the issue?

Because your microswitch is broken, it is best to install a new one instead of flicking the old one. This is how the appliance acts, roughly speaking. A spark is first produced and travels to the ignition source. After receiving an ionization signal, the main burner’s gas supply begins, and the flame ignites. The main burner will not start either if there is no indication that the ignition burner is operating. In your situation, the primary burner is unable to ignite despite the ignition device sending a signal. The gas supply is cut off after ignition but before there is a signal. We advise cleaning the electrode.

It’s the same brand of appliance. What might cause the burner to extinguish during ignition? What sort of issue is that?

Thermocouple malfunctioned. Change it out. There is damage to the coil. Put in fresh water.

There is an issue with the 4513m Neva automatic heater’s functionality. The situation is as follows: the main burner does not ignite, but the igniter does. How to fix it and what should I do?

Water pressure is too low. Establish the proper systemic pressure. As far as it will go, turn the regulator to the right. Diaphragm defect. The electrode needs to be changed.

In the summer house, we make use of the gas heater. The gas burner doesn’t stop burning even after you turn off the water. What is the origin of the issue?

The plug in the gas valve is clogged. Examine it. If necessary, clean. When the hydraulic valve is open, the piston may not be moving. Parts should be disassembled, cleaned, and replaced as needed. Verify the pressure of the gas supply. Make any necessary adjustments. Change the reducer on the gas cylinder.

Why, when the appliance is turned on, there is no spark is beyond me.

There was an igniter wire break. Make sure the wiring is connected correctly. An ignition element that is broken. This component needs to be diagnosed and changed. There is damage to the spark electrode. It must be changed.

WR-13 and WR-13 models. technical attributes. Putting on. upkeep and modifications.

Design and key elements. Setup and linkages.

Main assemblies’ and elements’ purposes. upkeep and replacement of parts.

Changes and configurations. assistance.

Unique design elements. maintenance and troubleshooting.

Components and elements. Mounting and installation. functioning and modifications.

When the hot water tap is turned on, the gas column Neva VPG-12E operates and illuminates, but the temperature stays below 20 degrees Celsius. Water pressure is normal; there is no response to the flame increase regulator; the temperature was and is still between 18 and 20 degrees. What might be the issue?

Linked the Ariston Marco Polo Gi7s column. Everything functions. However, after the second use, the appliance turns on. In other words, when the water is turned on, the heater activates, clicks, and displays error E1. The faucet then starts when you open it after closing it. functions starting with the cylinder. I turned off the gas after it finished working, so is that a possibility?

Electrolux 275 gas heater malfunction: when you turn on the hot water, everything lights up and operates for five to seven minutes, and then there’s a click and the igniter goes out. What’s wrong?

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Oasis TUR 20 gas heater not working properly. Set the gas and water regulators to maximum in "Summer" mode. After five or thirty minutes, it disappears on its own. Any combination of regulators in "Winter" mode goes out after 30 to 40 seconds. What might be the reason? Water delivery via pliable hoses. Could they be the reason? If so, what should I use in their place?

Tell me, I have this kind of issue: the column lights up when the water is turned off, the temperature rises, and it doesn’t turn off (I had to remove the batteries). When I put the batteries back in without turning on the water, it still lights up. What should I do?

Help in determining the cause of this gas heater (Astra 8910-02): the water pressure is lower than the cold water, the thermocouple was spotlessly clean, the diaphragm is in good condition (just in case I replaced it with a new one), and occasionally the hot water goes out. What else should I look out for?

Completed the assembly and setup of the Bosch WR 13 gas heater. I switched to the liquefied gas mode by moving the nozzles and removing the jumper from J6, but the column is not functioning. I’m not sure what to make of this. Upon activation, the green button briefly illuminates before beginning to blink red, indicating that only the fan is operating.

The gas heater from Junkers has begun to malfunction. It lasts for fifteen to twenty minutes before going out. You can turn the water on and off repeatedly to make the igniter light up and then go out again. You can repeat this process as often as you like, but it will not light up. A short while goes by, it functions, and then the cycle is repeated. Both gas and water pressure are good. What might be the reason?

Feature	Cause of Failure
Instant hot water supply	Ignition issues due to gas supply problems
Compact size for space-saving installation	Thermostat malfunctions leading to overheating

In many homes, gas columns like the Neva 4513 are essential for heating and hot water delivery. Maintaining a cozy and useful living space requires an understanding of their characteristics and typical causes of failure.

The Neva 4513 gas column’s compact design is one of its best qualities, making it ideal for homes with limited space. Its powerful heating capacity ensures that households always have access to hot water, even with its compact size.

The Neva 4513 is also noteworthy for its easy-to-use interface, which facilitates monitoring and operation. Homeowners can adjust settings and troubleshoot issues relatively easily with the help of clear indicators and simple controls, which lessens the need for professional assistance.

Nevertheless, the Neva 4513 is prone to errors and malfunctions just like any mechanical device. By being aware of the typical causes of these problems, homeowners can take quick action to solve issues and avoid expensive repairs. Being aware of possible problems, such as gas leaks or ignition problems, enables proactive maintenance and guarantees the gas column’s longevity.

To sum up, the Neva 4513 gas column provides many households with an easy and effective way to meet their hot water and heating needs. Homeowners choose it for their dependable performance, user-friendly interface, and small size. People can effectively maintain and troubleshoot their gas columns and ensure continuous comfort and functionality in their homes by being aware of its features and common causes of failure.

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