What can you cook from squid: quick and tasty

If gas the boiler does not heat water for hygienic or general technical needs, the problem can be solved by heating the required amount of liquid in the pan. Much more problems will arise in winter when the heating system is blocked. With a prolonged absence of the owners, the system may freeze. The subsequent restoration of its working capacity is associated with significant financial and time costs. To exclude such negative situations, it is necessary to select and apply a set of effective preventive measures.

Design features of the gas boiler Baksi (baxi), Navien, Ariston

In any case, familiarization with the technique of this class and features is useful. modern models... This knowledge will help you to choose the right equipment, not to make mistakes during operation.

V household boilers Baksi (baxi), Navien and Ariston burn gas, diesel and solid fuel, use electric heating elements. For a more complete use of the potential of energy resources, heat exchangers are being improved. Long ducts of complex shape are made in them to ensure long-term presence of the liquid in the working area.

The current trend is compactness. Manufacturers offer gas boilers with square bodies of relatively small thickness. Some models, due to their aesthetic characteristics, deserve to be placed in a conspicuous place.

The next feature is the implementation automated systems management. They control the combustion process, change operating modes, taking into account the readings of temperature sensors on the street and in individual rooms. In case of overheating, the equipment turns off without user intervention.

It is necessary to consider carefully the situations when the Baksi gas boiler does not heat the water. This happens, for example, when the supply of energy resources is interrupted. An appropriate check is not difficult to do even without special professional training.

Circulation pumps, valves, and other typical components and assemblies rarely fail. Their designs are designed for many years of operation without the obligatory Maintenance... V electronic circuits no moving parts at all. Their breakdowns are due to marriage. Subject to the rules established by the manufacturer, the resource of modern gas heating boilers is more than 10 years.

Do harm electrical part equipment is capable of power surges. To exclude such influences, an external stabilizer is installed. Checking the grounding system will come in handy. This exhausts the set of preventive measures for this group of problems.

It is much more difficult to provide protection against the most common cause of breakdowns in gas boilers - scale. It is she who will be studied in detail in this article. When heated, calcium and magnesium salts are converted into a solid state. It is these impurities that clog the narrow technological holes in the heat exchangers. They also form a porous structure on the surface of electric heating elements. If the normal heat dissipation is significantly disturbed, their housings are damaged.

To prevent the formation of scale and lime inside the boiler, it is advisable to install non-chemical filters (water converters), magnetic and electromagnetic, which will ensure a long "life" of your boiler and uninterrupted supply of hot water, as well as protect the heating circuit.

Filters (scale converters) such as AquaShield or MWS do not use chemical reagents and replaceable cartridges in their work. Once you install such a device in front of the boiler, you will forget about the problem of limescale for many years!

Troubleshooting: why the gas boiler does not heat hot water well?

If the gas boiler does not heat well hot water due to clogging or rupture of the tube in the heat exchanger, repair is necessary. It is performed by replacing a failed unit. Threaded connections in this case, they are not used, therefore it will be difficult to disassemble and subsequent installation on their own. To create a high-quality solder connection, it is better to invite experienced master... A qualified specialist will provide the required level of quality and provide written guarantees.

It is not easy to find out about the problem in advance. The scale builds up slowly, so it will not be possible to register a clear decrease in power. Extraneous noise can be caused by the passage of sand and other mechanical impurities through the pipes. Technological holes are too small for visual inspection. Dismantling is required to complete it.

The information provided explains why these types of emergencies occur unexpectedly. To prevent their development into a more complex problem, boiler equipment can be equipped with modern system remote control. Some manufacturers offer ready-made solutions in the form of an additional electronic unit and specialized software.

The corresponding application is downloaded to the smartphone. The advantage is the ability to remotely change the settings, check the readings of temperature sensors. If the Navien gas boiler does not heat hot water due to scale, replacing the heat exchanger is not enough. The same contamination reduces the inner diameter of the pipes, narrows the ducts in the radiators. A complete system cleaning is required.

This procedure is performed according to the following technique:

• The water is drained into the drain.
• All circuits are washed sequentially, or simultaneously with a special solution.
• It is also used to clean the heat exchanger if it is only clogged and can be operated further.
• After assembly, the system is checked for operability under pressure.
• Eliminate the identified defects (cracks, loose joints).

To remove calcium solutions, either aggressive chemical compounds are used. The duration of a standard procedure for one household object is several hours. Corresponding corrections are made taking into account the real state of the system. Strong acids can damage metal parts, the brazed joints of the Ariston double-circuit boiler. For this reason, experienced crews take repair tools to fulfill orders.

Self-implementation of such procedures is possible. But for many ordinary users, it is not advisable for several reasons:

• You have to purchase expensive liquid pumping equipment that will be used.
• Self-selection of the optimal composition of the solution will cause difficulties.
• In the course of this procedure, there are no mechanisms for operational control of processes within the pipeline system. This increases the likelihood of breakdowns.
• When performing operations in person, no official warranty obligations third-party contractor. All problems that arise in the future will have to be solved at their own expense.

Additionally, it should be noted that careless handling of aggressive chemical compounds can cause harm to health.

Preventive actions

Experts from companies offering flushing recommend doing every heating season. It is combined with a general inspection of the equipment. The frequency is adjusted taking into account the level of rigidity, the intensity of operation of gas by-pass boilers Baksi (baxi), and other significant factors.

These tips are really helpful. Regular cleaning will prevent more complicated procedures. Simultaneous testing can help identify problems early. However, the main disadvantage of this technology must be emphasized - it itself is capable of damaging equipment. It is especially unpleasant if defects appear during the heating season. It will be difficult to prove the culpability of the cleaning workers.

Instead of using potentially dangerous techniques, effective protective measures are applied. They are based on modern technologies water treatment.

So that scale does not form in the heating boiler Navien or Ariston, they are installed in front of it. They dissolve during the passage of a stream of water, create dense shells around microscopic scale particles (in the first stages of growth). After such "modification" harmful impurities are not able to join the walls and to each other. They pass freely along the contour, are removed into the sewer.

The second method is to replace harmful compounds with sodium ions. This procedure is carried out using special resins. They are poured into two large containers that work alternately. As contamination builds up, it is flushed with an inexpensive regeneration solution from table salt... Such equipment is used for general protection apartments, cottages, other real estate objects.

The next reason why a gas boiler does not heat hot water and its solution is a protective technology that has appeared recently, although it has been known for more than a hundred years. The fact is that previously only permanent magnets were used for descaling. They are losing their beneficial features with time. Moreover, experimentally discovered the effect of "addiction", when the compounds of calcium and sodium cease to respond to the corresponding influences.

Nowadays, the technique has been improved! Today electromagnetic converters with high frequency oscillators are used. At minimum costs energy (5-20 W per hour), they operate at a distance of up to 2 km along the length of the pipeline from the installation site of the Baksi or Proterm heating boiler. This technique maintains its initial efficiency throughout its entire service life.

Ultrasound can grind scale particles, remove old formations. But this technology is rarely used. Like acids, it can destroy the structural components of the water supply system. It should also be noted the likelihood of harmonic oscillations in the audio range.

Membrane technologies provide high level cleaning from various impurities, including hardness salts. But standard household installations handle no more than 200 liters. liquids per day. This is not enough for the needs of the Vilant heating boiler and hot water supply.

Features of different boiler cleaning technologies and conclusions

If the gas boiler stops heating water, it has to be repaired. To extend the service life of a heating boiler Buderus or Ferroli and prevent accidents, different methods are used. To choose suitable option, you should pay attention to the following details:

• Flushing with aggressive chemical compounds does not eliminate the problem, but removes the already formed scale.
• Polyphosphates pollute the water, therefore such protection is used only for the heating circuit.
• Sodium compounds are harmless (this is common, well-refined edible salt). However, after proper treatment, the water will acquire a distinct taste.
• Ion-exchange fillers are sensitive to temperature, humidity, and various impurities. It is necessary to clarify the requirements that are set out in the official instructions of the manufacturer of the Navien double-circuit boiler.
• To connect electromagnetic converters, a current source of appropriate power is needed. To ensure its continuous operation in difficult conditions, autonomous emergency power supply circuits are used.

When determining the reason why the Navien gas boiler does not heat, or does not heat hot water poorly, these are 3 ways of protection that must be taken into account: water hardness, architectural characteristics real estate object.

One of the problems that can happen while using a double-circuit boiler. The boiler does not heat hot water. The main and most common reason why the boiler does not heat water well is that the heat exchanger is clogged.

In this article, I will describe how I treat this problem. In this way, you can also get out of the situation if you have a double-loop boiler with a plate heat exchanger.

I have a well in my house and the water is very hard, so problems constantly arise with hot water To remedy the situation, I use citric acid.

The task is as follows. How to deliver this acid to the inlet of the heat exchanger with the least effort. I found this way. At the entrance to the boiler I have a magnetic transducer, which should remove the hardness of the water, but it does not remove it, in my opinion this is fiction. But for me the good thing is that it is installed right at the entrance to the boiler. In the photo below you can see.

There is an American nut on it, unscrewing which you can easily pour citric acid into the pipes.

But for this you need to turn off the water. I have a collector next to the boiler. He is in the photo below.

Now all the ducts on it are open and with one light movement I shut off the water supply to the boiler.

All the water is shut off, now you can unscrew the American woman on the magnetic filter. And do not forget to come up with something, from the flowing water from the boiler, there is not much of it, but it is there. I rolled up a rag.

Then I pour citric acid into the inside of the pipe.

I twist the American woman back and turn on the tap to supply tap water to the boiler.

Now it is important to understand when the acid will enter the heat exchanger. Since my water tap is located a meter from the boiler, I determine whether the acid has reached the heat exchanger to taste. I just open the tap with short jerks and taste how "sour" it went, which means the whole system from the magnetic filter to the tap is filled with citric acid.

Next, you need to turn off the tap so that your family does not drain all the acid ahead of time.

I fill up the system at night and until the morning I have it acidified. In the morning, I open the water supply tap to the boiler and drain all the acid. The water will sizzle at the same time, do not frighten.

The question may arise, will the heat exchanger eat acid? I dug on the forum of chemists and came to the conclusion that organic acid (citric acid refers to it) is harmless to copper.

I use this method as needed. If you do not like how the boiler heats the water or the pressure of hot water has become weak, I take and treat the heat exchanger with citric acid.

If you have polypropylene piping to the boiler, and there is no place to fill the acid, then think of something similar to it will not take much time.

One of the problems that can happen while using a double-circuit boiler. The boiler does not heat hot water. The main and most common reason why the boiler does not heat water well is that the heat exchanger is clogged.

In this article, I will describe how I treat this problem. In this way, you can also get out of the situation if you have a double-loop boiler with a plate heat exchanger.

I have a well in my house and the water is very hard, so I constantly have problems with hot water, to remedy the situation I use citric acid.

The task is as follows. How to deliver this acid to the inlet of the heat exchanger with the least effort.

I found this way. At the entrance to the boiler I have a magnetic transducer, which should remove the hardness of the water, but it does not remove it, in my opinion this is fiction. But for me the good thing is that it is installed right at the entrance to the boiler. In the photo below you can see.

There is an American nut on it, unscrewing which you can easily pour citric acid into the pipes.

But for this you need to turn off the water. I have a collector next to the boiler. He is in the photo below.

Now all the ducts on it are open and with one light movement I shut off the water supply to the boiler.

All the water is shut off, now you can unscrew the American woman on the magnetic filter. And do not forget to come up with something, from the flowing water from the boiler, there is not much of it, but it is there. I rolled up a rag.

Then I pour citric acid into the inside of the pipe.

I twist the American woman back and turn on the tap to supply tap water to the boiler.

Now it is important to understand when the acid will enter the heat exchanger. Since my water tap is located a meter from the boiler, I determine whether the acid has reached the heat exchanger to taste. I just open the tap with short jerks and taste how "sour" went, which means the whole system from the magnetic filter to the tap is filled with citric acid.

Next, you need to turn off the tap so that your family does not drain all the acid ahead of time.

I fill up the system at night and until the morning I have it acidified. In the morning, I open the water supply tap to the boiler and drain all the acid. The water will sizzle at the same time, do not frighten.

The question may arise, will the heat exchanger eat acid? I dug on the forum of chemists and came to the conclusion that organic acid (citric acid refers to it) is harmless to copper.

I use this method as needed. If you do not like how the boiler heats the water or the pressure of hot water has become weak, I take and treat the heat exchanger with citric acid.

If you have polypropylene piping to the boiler, and there is no place to fill the acid, then think of something similar to it will not take much time.

Questions on malfunctions of Arderia boilers

Question: On my Arderia esr 2.13 ffcd gas double-circuit boiler, the display shows an AA error (water boiling). You set the temperature, it catches up with it as usual, and then as soon as it drops by a few degrees, it turns on, and so on ad infinitum. It turns out that it turns on every 10 seconds. The pump is running, the filter has been cleaned, all the taps are open, the sensor is working. Most likely the problem is with the 3-way valve. Tell me what
make?

Answer: You need to call the wizard so that he reconfigures the boiler, namely, Arderia has a service menu in which you can exit the control panel, there you need to increase the setting of the difference with the set temperature and start temperature.

Question: After 2 years of normal operation, the following things began to happen: when the heating is connected during heating, a sharp increase in pressure occurs (according to the readings of the dial gauge) and an emergency discharge of the coolant. What is the problem?

Answer: Most likely - damage to the expansion tank membrane or lack of air (nitrogen) in the air chamber (unless, of course, there are no shut-off valves on the tank that “accidentally” closed. It is also possible that the three-way valve is not working properly.

Question: We installed and connected a gas wall-mounted boiler Arderiya 2.13, which served exactly 2 years without any complaints and malfunctions began. The heating is working properly. But the hot water does not want to warm up. The burner then goes out, then lights up again and the water is barely warm or even cold. And even when you open the tap, the batteries suddenly start to warm up. Who faced this, tell me, what could it mean?

Answer: If lukewarm water flows, it means that the three-way valve switches. Alternatively, the 2nd heat exchanger on the heating side. That is, if the boiler works steadily for heating and reaches the nominal value, then no. If the water pressure is hot, it is possible that the secondary heat exchanger is clogged along the heating channel. At the request of DHW, the boiler ignites, goes to the nominal value, but the heat is not removed, therefore the boiler extinguishes the burner. Another option is the hot water temperature sensor is lying.

Question: We installed and connected the Arderia esr 2.13 ffcd wall-mounted boiler. Worked for 4 years. recently everything went offline. Up to the backlight of the remote control. Does not go into emergency mode. He took off the board, pulled it out of the casing, there are 2 fuses. But they are whole. What happened and how to be saved? A complete feeling that the power just disappeared. Power supply through the stabilizer. The stabilizer is working.

Answer: Change the board, set the DIPs on the new board as on the old one.

Question: We installed and started up the arderia esr 2.20 gas by-pass boiler. There is a question about the mode of its operation. The boiler works almost without stopping the pump, while the temperature of the heating medium drops to the set value after the burner is turned off, and the burner is triggered again. And so practically without pauses. I did not notice this before. It was also noticed that when the DHW is turned on, first from the crane is coming very hot water, hands cannot be substituted. Is this a malfunction and how to lengthen the pause time.

I also wanted to ask about such a moment. I tried to regulate the boiler according to the room temperature.

Does the boiler not heat up the water? There is only one reason - scale

I set it to 27 degrees (not comfortable below), the boiler works for a long time, the coolant heats up to a maximum (80 degrees C), then when it gets hot it turns off.

It may even "fall asleep" for a long time (half a day or more), although the rooms are already getting cool and it would not hurt to turn on, but I look at the remote control - the temperature shows 27, although there is a feeling that it has dropped significantly lower. Whether the sensitivity of the remote control is very uncomfortable + -1
degree, or is it some kind of malfunction. Who can say anything on this issue. The boiler has been in operation for 2 years.

Answer: I can assume that the remote control is not well located, there is no air circulation around it.

Question: I do not like the operating mode gas boiler Arderia esr 2.20 ffcd with flow temperature control. I will describe the operating mode in more detail: Suppose the temperature of the coolant has dropped to the lower limit at which the gas supply is triggered and heating occurs
coolant.

Moreover, heating occurs within no more than half a minute, while the pump continues to circulate water. During the next half a minute during the circulation of the coolant, it again cools down to the lower limit and the heating turns on again and so on with practically no pauses. I did not change the values ​​of the setting (factory) parameters and I don’t know how to do it.

The only thing that I checked with the parameters given in the manual is that they match. Previously, I did not notice such an operating mode, because it was all the other way around: first, for a certain time after the boiler was triggered, the coolant circulated without heating, then heating was turned on, for a certain time the pump continued to circulate, then it turned off and there was a pause in its operation, now this pause simply does not exist.

Sometimes during the day, in order not to load the boiler, I turn on the timer mode (but the minimum value is one hour there). I would like to hear your opinion on this boiler operation and how to put it in order?

Answer: The other day there was an error A8, the boiler puffed like a steam locomotive, ignition and extinguishing of the burner after 30 seconds. This happened after heating the water in the heating system, flushed the heating circuit in the boiler. The problems disappeared. I also recommend that you start flushing the boiler.

Question: We installed and launched the Arderiya 2.20 boiler. The hot water supply is either cold or hot, the gas is not cut off at this time. after 20-25 minutes constantly hot. Another thing is, comfortable temperature(not cold) water becomes only with a small pressure at one point, if you open hot water in another place, the boiler can go out. I read the instructions, I am inclined to rinse the DHW heat exchanger. Can you tell me something else?

Answer: Maybe your heating system is airborne, and while the air and water are circulating around the circuit through the heating heat exchanger, the water temperature is unstable. I suppose you can check this by turning off the boiler for half an hour and turning on the heating to listen to the boiling noise in the boiler, if the air is bubbling, if not, then probably a three-way valve.

If this is a diagram of your boiler, then there is a high probability that the three-way valve is faulty.
because it stands at the outlet of the heat exchanger and a very hot coolant comes out through it and destroys the 3-way valve. On most boilers, the 3-way is on the heating return line and operates at a lower temperature.

Question: A wall-mounted boiler Arderiya 2.20 is installed and connected in the house. The problem is that it doesn't heat up hot water. when you open the mixer, cold water flows, this happens in both summer and winter mode... At the opening of the mountains. water, the flame turns on and it heats the heating circuit. At first I thought it was a three-way valve, bought a new one and installed it. But the problem was not solved, everything remained the same. Tell me what to do?

Answer: Scheme: The hot water tap was opened - the flow began - the DHW flow sensor was triggered - a signal was received on the control board - the control board processed the signal and sent a command to the three-way valve - the three-way valve worked and redirected the heating water to the plate heat exchanger - the cold households started heating. water in the secondary plate heat exchanger - mountains came from the tap. households water.

What is the weak link in this algorithm? DHW sensor - board - three-way. We start in order with the sensor. The sensor may not work stupidly due to the fact that the pressure that creates the water flow is weak or increased hydraulic resistance, that is, the filters are clogged or there is dirt in the sensor itself. A clogged secondary also creates an increased hydraulic resistance, but in this case, the heating of the hot water supply would rather happen in the pulsation mode, and not be absent at all, all the more so.

Question: We have installed and started up the Arderia ESR 2.35 FFCD gas boiler. A decent clap follows when fired up. I cleaned and examined the gas valve, pipe, electrodes, etc. Played with mines. pressure on the valve, did more and less than the factory one. He still claps, though a little less. When you pull the wires off the modulating coil, the turbine gradually begins to spin up to high speed (from observation).

With the modulating coil wires removed, the boiler ignites more smoothly. How do I get it to run to its minimum without disabling the modulating coil? How to reduce the starting voltage on the coil? Reduce the starting voltage on the coil - Switch 5 on the board - in the down position. Then reduce the pressure with the resistor "MIN" on the board. Then - put switch 5 back in place.

Answer: When adding gas, the boiler adds air. They removed the power, the flame decreased, the temperature dropped, it adds voltage to the modulation coil and adds fan speed. Just in case: there is a screw under the modulation coil. It allows you to change the min. gas pressure without changing the fan speed. But act sensibly, since it will be difficult to return it back.

Question: I have such a problem with a double-circuit boiler Arderiya. The hot water supply is constantly at 40 degrees, now summer is warming, probably 70-75 degrees, I can't say for sure! I called the master, unfortunately, we live in a regional center far from service centers! He told me that either the pressure of the cold water is weak or it is in summer season it goes warmer and therefore the water overheats! He says to turn off the gas supply on the board or on the valve, in my opinion tighten the nut, no sense! You turn off the water, and it still buzzes for 1-2 minutes! Maybe all the same, something can be done so that the water does not heat so much?

Answer: It is necessary to check the setting of the burner, if it is normal, then just open the tap with water harder.

Question: We installed the Arderia esr 2.13 ffcd boiler. It seems to be crammed with automation, but gas workers are forced to install a RMS with 2 sensors for CH4 and CO. I still agree to methane, but I don’t want to waste money for the second one. And SNiP echoes the same to me. But they are not in any way. I just want to prove that the boiler has a reverse draft sensor (it's also a carbon monoxide concentration sensor) But I can't find documentary evidence anywhere. Although he is there for sure. If there is a notorious reverse thrust sensor. Show me where it is in the cauldron?

Answer: The role of the thrust sensor is performed by an air pressure switch. Located inside the machine. It will turn off the boiler if the chimney or air supply pipes are clogged. Or will not let him turn on in these problems. The draft breaker is just one of the elements of the boiler; in fact, there is a reverse draft sensor on it (if we talk about boilers with an open combustion chamber). And if a flue gas leak does not occur in the place where this sensor is installed (it may be a leak in the chimney after the boiler or through leaks in the combustion chamber), then this sensor will not react in any way.

Question: The Arderia dsr 220r boiler has been in operation for about a year. About a month ago, problems with hot water began (when hot water is turned on, the AA error lights up), I checked the electric drive of the three-way tap - it works, I twisted it with a screwdriver, the tap itself turns normally. I put it back together - it worked, but not for long, a week and again an AA error.

At the moment of switching on the hot water supply, hot water enters the hot water supply pipe for only a few seconds (apparently at the moment of switching the tap), and then all the boiling water goes to the heating circuit and after a while the AA error lights up. I took it all apart again, twisted it, but it didn’t help anymore. During the rotation of the crane inside, in certain positions, clicks are heard as contacts of a relay or position sensor.

What could be the problem?

Answer: There is a problem in these contacts. maybe just broken or rotted or stuck. Disassemble, watch, change. Another option - perhaps the secondary heat exchanger is clogged with salt deposits. Rinse and clean.

Question: Tell me, I heard that three-way valves often fail on Arderiya 2.13 boilers. How can you extend their service life?

Answer: I can say that the three-way valve of the arderia is normal (almost like everyone else) 🙂 the narrowest point is the seal of the drive axis (I suspect that there is no seal at all) I preemptively disassemble, fill the contact group with grease and assemble it. In fact, a three-way valve-faucet is a switch for the flow of the heating medium from the main heat exchanger either to CO or to the DHW plate heat exchanger.

In the design of the three-way, contacts are used (you can call them limit switches), depending on the closed contact, the voltage is applied to the first or second contact when the desired position of the locking ball is reached, the contact is mechanically opened by email. the engine stops. Correspondingly, the CO or DHW circuit works. The reasons for the failure are trivial, poor sealing of the drive shaft of the locking ball.

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What to do if the Vailant boiler does not heat hot water

Vailant boilers are particularly reliable and safe. Breakdowns of such complex equipment should be eliminated by a master. But, minor faults can be removed on your own if you have a basic level of knowledge about the design of heating and heating boilers.

Most of the faults are indicated on the boiler display. With the interpretation of the errors, you will be able to figure out what is the reason for the failure of the boiler to heat the water. Where to start the search if the water heating in the Vilant boiler does not work, and the indicator does not show an error, or it can be interpreted in different ways?

The Vilant boiler does not heat hot water due to blockages

This is one of the most common problems. Most often, the reason lies in the low quality of water - scale appears, units, filters and pipes become clogged.

If the boiler does not ignite a flame, start the check from the flow sensor. Finding this cylindrical device is quite simple. The flow sensor is located near the pump, it is to it that the wires fit. Two sensors are installed near the pump:

• Pressure sensor in the heating system.
• Flow sensor.

The flow sensor looks like a small fan; it starts to rotate from the movement of water through the pipes. If the flow sensor detects the movement of water, the automation receives a signal about the need to turn on the gas and heat the water.

Gas boiler does not heat hot water

If the flow sensor is clogged, water will flow, but the fan will not move. Accordingly, the signal to turn on heating is not received. There are two ways to solve the problem:

• Do not rush to disassemble the boiler and try to “blow through” the system first. Close the valve general water supply Houses. Open the hot water tap and drain the water from the system. Now the percentage of air in the pipes has increased. Start abruptly opening and closing the water tap directly in front of the boiler. These simple manipulations will help to create pressure and clean the debris from the fan of the duct sensor.
• If “blowdown” does not solve the problem, it is necessary to open the boiler, unscrew the flow sensor and clean it manually.

If the Vilant boiler does not heat hot water, the secondary heat exchanger should be checked. It also tends to clog up quickly. But, fortunately, it can be easily removed, cleaned and installed back.

A clogged three-way valve can also cause the boiler to fail to heat water. And you can remove this unit yourself, clean it and install it back.

Having bought the Vilant boiler, be sure to check with the seller information about the places where the filters are installed. You can clean and change these components yourself.

Defective pump

Heating water in the Vilant boiler largely depends on the operation of the pump. It is necessary to call a specialist to repair or replace this unit. But, you can check on your own whether it is the reason for the failure of the boiler to work.

Set the water temperature on the boiler to 0 ° C and turn on the water heating mode. During this time, monitor the operation of the pump. If after 20 minutes of operation it does not heat up, then the problem is with the pump.

The reason for the failure of the boiler to heat the water may lie in the elementary loosening of the bolts in the connection areas. Carefully examine the diagram of the boiler device and check if all connections are tight. Perhaps a simple tightening of the bolts will solve your problem.

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Repair and errors of gas boilers Viessmann Vitopend 100-W

Replacing the flow-through heat exchanger

Close the Viessmann Vitopend 100-W wall-mounted boiler from the heating circuit side and from the DHW side and drain the water from it.

Fig. 8. Dismantling the flow-through heat exchanger

E - Heating circuit flow, F - Heating circuit return, G - Cold water line, H - Hot water line

Check the connections of the DHW draw-off circuit for limescale deposits, and the heating circuit connections for contamination. If necessary, clean or replace the continuous flow heat exchanger.

Work on replacing the flow-through heat exchanger:

- Move stepper motor A slightly upward.

- Turn the stepper motor adapter B to stepper motor A 1/8 turn counterclockwise and remove it.

- Loosen the two screws C on the flow-through heat exchanger and remove the flow-through heat exchanger D together with the seals.

- Reassemble the flow-through heat exchanger D upside-down using new seals. Mounting screw torque: 5.5 Nm.

- During assembly, observe the position of the fixing holes and correct fit seals.

- Ensure correct installation position of the flow-through heat exchanger. Observe the "Top" markings.

- Assemble the boiler upside-down.

- Fill the boiler with water, bleed (vent) and check the tightness.

Temperature limiter and boiler sensors Visman Vitopend 100-W

Fig. 9.

The boiler does not heat or does not heat hot water well: reason and solution

Removing the temperature limiter and boiler sensors Viessmann Vitopend 100-W

A - Temperature limiter, B - Boiler water temperature sensor, C - Hot water outlet temperature sensor (gas combi boiler), D - Tilt draft control sensor, 5 - Cylinder temperature sensor (single-circuit gas boiler)

Temperature limiter

Check that the gas control box is not unlocked after an emergency shutdown, although the boiler water temperature is below 90 ° C.

- Check the current flow of the temperature limiter with a multimeter.

- Remove the defective temperature limiter.

- Install a new temperature limiter.

- To release, turn the regulator knob to the right for a short time until it stops and then back. The ignition process is repeated.

Boiler water temperature sensor:

- Disconnect the cables from the sensor.

- The boiler water temperature sensor is located directly in the heating medium (risk of scalding).

- Before replacing the sensor, drain the water from the boiler.

Outlet temperature sensor (gas combined hot water boiler Viessmann Vitopend):

- Disconnect the cables from the sensor.

- Measure the resistance of the sensor and compare it with the characteristic curve.

- Replace the sensor if there is a strong deviation.

- Before replacing the sensor, drain the boiler on the DHW side.

Traction roll-over control sensor:

- Disconnect the cables from the sensor.

- Measure the resistance of the sensor and compare it with the characteristic curve.

- Replace the sensor if there is a strong deviation.

Cylinder temperature sensor (single-circuit gas boiler Visman Vitopend):

- Disconnect plug 5 from the cable harness outside the controller.

- Measure the resistance of the sensor and compare it with the characteristic curve.

- Replace the sensor if there is a strong deviation.

Fault indication (error codes) of Viessmann Vitopend 100-W boilers and their elimination

A0 - Burner blocked

Gas pressure too low - Check gas pressure and gas pressure monitor

E0 - Burner blocked

Draft tilt monitor has triggered - Check flue gas duct. If the draft tilt monitor has been triggered 10 times within 24 hours, the burner goes into fault mode (fault indication "F6").

F2 - Burner malfunction

Temperature limiter tripped - Check the heating system fill level. Check the circulation pump. Remove air from the installation.

Check temperature limiter connecting cables. To unlock, turn the regulator knob almost all the way to the right and then back (reset).

F3 - Burner malfunction

The flame signal is already present when the burner is started - Check the ionisation electrode and connecting cables. Switch the mains switch 8 off and on again (or carry out a reset, see F2).

F4 - Burner malfunction

No flame signal present - Check ignition electrodes / ionisation electrodes and connecting cables, check gas pressure, check gas train, ignition, ignition transformer.

F6 - Burner malfunction

Draft tilt monitor has triggered - Check the draft tilt sensor.

F30 - Burner blocked

Short circuit of the boiler water temperature sensor - Check the boiler water temperature sensor.

F38 - Burner blocked

Lead break, boiler temperature sensor - Check the boiler water temperature sensor.

F50 - No hot water preparation

Short circuit of the cylinder temperature sensor (single-circuit gas boiler Visman Vitopend) - Check the sensor.

F51 - No hot water preparation

Short circuit of the outlet hot water temperature sensor (gas combi boiler Viessmann Vitopend) - Check the temperature sensor.

F58 - No hot water preparation

Open circuit of the cylinder temperature sensor (single-circuit gas boiler Viessmann Vitopend 100) - Check the sensor.

F59 - No hot water preparation

Breakage of the outlet hot water temperature sensor (gas combined hot water boiler Visman Vitopend) - Check the sensor.

b0 - Burner blocked

Short circuit of the draft tilt sensor - Check the draft tilt sensor.

b8 - Burner blocked

Lead breakage control sensor - Check sensor.

Possible causes of room temperature changes

The rooms are too cold:

- Incorrect setting of the room temperature controller - Set the required room temperature on the room temperature controller.

- Heating system switched off - Switch on the mains switch. Switch on the main switch, if present (located outside the boiler room). Check the fuse in the switchgear electric board(house input fuse).

- Incorrect controller setting - Set the regulator knob to a higher temperature of the heating medium.

- Priority for DHW heating - End hot water draw-off or wait until the DHW cylinder has finished heating.

- Fault indication on the display: The symbol "U" and a fault code appear, for example "F2" - Turn the knob almost all the way to the right and then back (reset). If the fault display appears again, contact your heating contractor.

- Air in the heating system - Bleed the air from the radiators.

- There is no fuel - Open the gas shut-off valve.

- Malfunction in the system supply air or in the gas path - Contact service department on heating technology.

- Circulation pump defective - Call service.

The rooms are too warm:

- Incorrect setting of the room temperature controller - Set the required room temperature on the room temperature controller

- Incorrect controller setting - Set the hot water temperature with the regulator knob.

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DIY Oasis gas water heater repair

Today we will consider the repair of the Chinese gas water heater Oasis (Oasis) with our own hands step by step.

The most common malfunction of the Oasis gas column is the failure of the water block membrane. In this case, the Oasis usually does not light up. It is not difficult to identify this malfunction, and you can do the repair yourself. We will consider the disassembly of the column below. To begin with, remove the column case, put the water flow regulator on the water block of the column to the fully clockwise position and open the hot water tap. In this case, we look at the microswitch, which is located in the middle - between the gas and water block of the column. If the membrane is working properly, then the rod of the water block presses on the tab, which releases the microswitch button, respectively, the column should crackle and ignite. If the foot comes off well from the microswitch, but there is no crackling sound, then the microswitch is most likely faulty. It can be checked by disconnecting the connector and closing the contacts.

Consider the case when the foot barely moves, or does not move at all when the water is turned on in the tap. Probably, the membrane of the water block is torn and the pressure required to move the water block is not created. Another common malfunction is a leak in the gland assembly of the Oasis gas column. A leaking oil seal usually leads to a breakdown of the same microswitch, because drops drip onto it. If you find this particular malfunction, then do not waste time and change the stuffing box, otherwise your Oasis will soon stop igniting and turning on. Spare parts for the repair of the Oasis gas water heater are not expensive and I advise, if you are trying to disassemble the water block of the Oasis gas water heater, immediately change both the membrane and the stuffing box of the stem. In fact, these are consumables. It will be a shame later when, having changed the stuffing box, you will come across a month later with the replacement of the membrane of the water block, or vice versa. From experience I came across something else ... Suppose they changed a new membrane, the gland did not flow, it seemed like they left it ... But it either flowed in a week, or, even worse, the column, when the water was closed, continued to burn, overheated, spat steam, it happened something even more unpleasant if they did not have time to turn off the gas. Why did this happen? It's simple .. The stem of the water block in the stuffing box did not go all the way, and after replacing the membrane, it began to go to full. When the stem barely moved, it was overgrown with salts, rust in the place where it did not go into the oil seal ... Then everything is clear. The rod either erases the packing ring with an abrasive, or it may even jam there and not return to its original position. If you are lucky, then after this, at least the column heat exchanger will not flow, otherwise you will end up on expensive repairs

This means that a malfunction of the water block of the geyser has been found and you can consider how to repair the Oasis geyser with your own hands, disassemble the column. So, let's start step by step:

1. Remove the handle 1 from the gas water heater to adjust the gas supply of the gas block, handle 2 to adjust the water flow of the water block, and handle 3 to the switch of the gas water heater for winter / summer mode.

2. Find two self-tapping screws on the bottom right and left for securing the column cover to the back wall of the Oasis column and unscrew them. Usually it is inconvenient to get to the screws. Next, remove the front panel of the Oasis gas water heater from the upper hooks of the back wall of the column.

3. Carefully, so as not to break, disconnect the connectors of the wires that go to the display of the column from the control unit and from the temperature sensor.

4. Unscrew the two screws that secure the Oasis column water block to the rear wall.

5. Unscrew the two screws that secure the gas column heat exchanger tube to the water block, and release the hold-down flange. We remove the tube from the water block.

6. Disconnect the microswitch connector. The photo shows that it is wrapped in cellophane. This column had a stuffing box assembly and so they decided to "kolkhoz" in order to save the microswitch.

7. Disconnect the wires from the gas solenoid valve.

8. Disconnect the ground wire from the gas block by unscrewing the screw.

10. Disconnect the two self-tapping screws that secure the block of ignition and ionization electrodes to the burner of the Oasis gas column. Let's remove the wires going to the electrodes.

11. Unscrew the 2 screws that secure the gas block of the column to the back wall.

Why did the double-circuit gas boiler suddenly stop heating hot water?

Disconnect the power wires 1 from the battery compartment 2 of the gas water heater.

13. Now nothing prevents us from dismantling the water-gas unit and the complete burner.

14. Two halves of the column water block are tightened by 4 screws. To disassemble the block, we need to unscrew them. Most likely, you will not succeed if you climb there with a screwdriver. The screws are made of low quality steel and will rip off the splines with them. Whatever this happens, I advise you to first rip off the screws with something like pliers, and then calmly turn with a screwdriver.

15. The block is halved.

16. Remove the membrane of the water block 1 and the plate of the stem of the water block 2.

16. Under the plate of the stem of the water block there is a hexagon - this is the visible part of the stuffing box assembly. We need to unscrew it. Usually it can be unscrewed easily, but the hexagon is there by 15 or 16 (not a popular size in Russia). The edge is very thin, it is difficult to hook it with a key. Don't rip it off.

17. In this photo we see the complete packing that I removed.

This completes the disassembly, now the Oasis gas column can be assembled in the reverse order, changing the stuffing box and membrane. I change the microswitch to a heap if water drips on it. But that's up to you. I hope my article was useful to you, and you made repairs, eliminated the malfunctions yourself. If you do not want to bother with the search for spare parts and self-repair, then contact me, I will come for repair

Https://gazmaster34.ru/remont-gazovyh-kotlov.html

I hope you find the instructions on gas water heater Oasis. Download

2017-06-07 Evgeny Fomenko

Why the boiler does not heat water for the heating system

There can be many reasons why a gas boiler does not heat water for heating. The main ones and ways to eliminate these causes are discussed below.

The boiler turns on, but the heating does not heat up.

Possible causes and their elimination:

It functions on the principle of an expansion tank, without reducing the pressure in the system. After a long downtime of the unit, check the valve, it may become clogged with scale;

incorrect battery design... The batteries must correspond to a specific heating mode, since each type of radiator has an individual heat transfer value depending on this mode.

The principle of operation of a double-circuit heating boiler

Using the example of a gas unit, we will consider the principle of operation of a double-circuit boiler. The design of the unit is a system of blocks, the work of which is interconnected and monitored by a security system, which includes various sensors. The main units are the gas block, where ignition and combustion take place, the hydraulic block, which regulates the supply and pressure of the liquid, the smoke removal block, which removes the gas combustion products.

When the boiler is turned on, the circulation pump is initially started, then gas is supplied with the help of the gas valve. Automatic ignition ignites the gas; in the process of gas combustion, the heat exchanger heats up, heating the coolant passing through it. In this mode, the unit will work for some time until the parameters that are controlled by the sensors change.

The sensors monitor the room temperature, in the return flow, gas pressure, system pressure, draft flow, and the presence of a flame. Temperature sensors can control the temperature at the inlet or outlet of the heating circuit. If there is a sensor on the return line, upon reaching set temperature the thermostat sends a signal to the electronic board, which, having processed it, turns off the gas supply.

In this case, the circulation pump will run for some time in order to cool the heat exchanger. This is done so that the remaining heat in the heat exchanger does not bring the coolant to a boil. After cooling down to the set water temperature in the system, the electronic board will start the pump, the gas valve will open the gas and the whole cycle of the double-circuit boiler will be repeated.

When the hot water tap is opened, the flow sensor is triggered and the control board switches the three-way valve to heat the secondary heat exchanger. Heating of hot water in the system has a priority, i.e. immediately after you open the hot water tap, the whole system will only work to heat this water.

When the tap closes, the reverse process occurs - the board transmits a signal to the three-way valve, it closes the DHW system and the unit starts working again on the heating circuit. It should be remembered that the unit will take some time for hot water to flow from your tap.

Some appliances are equipped with a “quick start” or “comfort” function, which allows the boiler to switch the three-way valve from time to time and heat the water in the secondary heating medium.

DHW does not heat up - causes and troubleshooting.

The most common reason why hot water is not heated is the strong formation of scale inside the heat exchanger. Scale not only narrows the flow of water in the heat exchanger, it significantly reduces the temperature of the water.

The reason for this is that the thermal conductivity of scale salts is many times lower than the thermal conductivity of the metal from which the heat exchanger is made. The unit does not give (does not supply) hot water or it runs poorly if a piece of plaque breaks off and blocks the fluid flow.

Hot water does not flow to the tap when the flow sensor does not work. It is a fan that works when water flows through it. in this case, the signal from it goes to the control board, it gives a command to heat the water. the sensor can become clogged, it can be cleaned without dismantling.

The sensor is a cylinder located near the circulation pump. For cleaning, simply open and close the tap in front of the appliance. If this procedure does not work, you will have to dismantle it, clean it and put it in its original place. If the sensor is inoperative, you will have to change it.

If the three-way valve is faulty, the unit does not deliver hot water. The purpose of the three-way valve is to shut off the heating system when the hot water tap opens. When the valve does not switch, the boiler continues to heat the heating water.

The cause of a valve malfunction may be an elementary blockage, for example, a piece of rust. If the problem is more serious, replace the valve with a new one. In addition, one of the simple reasons why hot water does not flow from the tap may be a clogged gas hoses or gas filter.

Sectional view of the three-way valve

On heating it will not be so imperceptible, but at the temperature of the tap water it will be felt more significantly. Clean hose and filters. Some of the points listed above can also be the causes of problems with heating and hot water in wood, electric and solid fuel (TT) boilers, provided that there are similar structural details.

Installing a gas boiler allows you to forget about cold water in batteries and taps. Double-circuit models are able to simultaneously work for heating and hot water supply (DHW) of the room. But what if the boiler does not heat the water? If you are faced with a similar problem, our recommendations will help you find the cause and fix the problem yourself.

Boiler working principle

To understand the reasons for the breakdown, you need to understand how the boiler works. Double-circuit devices "Ariston", "Baksi" and other models have several blocks. Ignition and combustion take place in the gas unit, the water unit is responsible for the water supply and the pressure in the line. The chimney unit removes combustion products outside.

As soon as you start the boiler, the pump is activated, which pumps water into the system. The gas valve opens. The liquid circulates through the tubes of the heat exchanger, and the burner evenly heats up its body. Sensors monitor the heating process. As soon as the temperature reaches the set one, the gas supply is turned off, heating stops.

When the temperature starts to decrease, the sensors will send a signal to the control unit - the heating cycle will start again.

When the mixer is opened, the flow sensor is triggered. It gives a signal to the board to switch the three-way valve to DHW heating. When the mixer is closed, the valve switches to the heating system. Some models are equipped with a "quick start" mode. Then the valve periodically switches, heats up both the first and second heat exchangers.

Why the boiler does not heat well, does not pick up the temperature

No hot water? For what reasons does the technique not work? Sometimes it's about external factors... Let's take a closer look.

The appliance works, but does not heat up or heats up weakly

Airlock. Check for trapped air in the batteries. Remove excess air using taps. If you do not have an air vent on the radiators, then you need to install it. By adjusting its faucet, you can release the accumulated air in the system.

Also inspect the valve for blockage. Most often it gets clogged with scale.

Clogged radiators... After cooling down, drain the water from the pipes. If it is heavily dirty, run it over the batteries until a clean one flows.

Wrong connection... If there is no hot flow, make sure that the diameter of the pipes corresponds to those stated in the instructions. Are the hoses connected correctly and the shut-off valves installed?

Low line pressure... It is not enough to open the valve and ignite the burner. Top up with water.

Scale build-up in the heat exchanger. You can see that the technology heats up the liquid for a long time, the batteries are not very hot. Clean deposits from the radiator pipes. For this, it is better to remove the node, but this can not be done in all models. Therefore, remove the cover, disconnect the device from gas and water. Connect the pipes from the pump to the heat exchanger, run the cleaning liquid through the system. Special products can be found in the store. Then rinse the parts under running water.

The addition of reagents to the heat transfer fluid helps to reduce the formation of salts on parts.

When buying, it is important to pay attention to the brand and model of the boiler. For example, manufacturers "", "", "", "", "" prohibit the use of the reagent. It is recommended to install cleaning filters or use distilled water.

Antifreeze can be applied to models, "", "", "", "", "". But a separate reagent is produced for each manufacturer.

Clogged filter... Another reason for poor heating of the batteries. The mesh filter becomes clogged with small debris, so it is periodically removed and cleaned under running water. In case of severe clogging or wear, it is better to replace the part.

Incorrect adjustment... Check the set values ​​on the panel. Perhaps the temperature is too low, so the gas does not heat hot water.

Problems with the operation of the circulation pump... Overheating, the pump turns off when hot water is turned on. Its capacity may not be sufficient for normal circulation. Adjust the settings.

Battery design does not fit your equipment... Each design has its own permeability and heat transfer. The wrong choice leads to a decrease in heating due to the patency of the system.

Failure to comply with the slope of the highway... The problem is typical for systems with natural circulation, which is ensured by adherence to installation standards. According to the documents, the slope of the pipes for each running meter must be at least 10 mm. No slope - no heating. The coolant stagnates, the batteries remain cold.

The gas boiler does not turn on, does not provide hot water for DHW

The main cause of malfunction is salt deposits... The larger the scale layer in the heat exchanger, the worse the conductivity. The water heats up for a long time, a thin, slightly warm stream flows at the exit. Also, a piece of scale could chip off and block the passage to the mixer. We have described above what to do in this situation.

Flow sensor problems... The part works on the principle of a fan that rotates due to the movement of the flow. The sensor may not work if it is clogged. For cleaning without dismantling, open and close the tap located near the circulation pump.

If the procedure does not help to restore operation, you will have to remove the sensor, clean it and reinstall it.

Three-way valve malfunction... If the valve is stuck or broken, it will not be possible to switch the water supply from the heating system to DHW. The cause of the problem could be a clogged part, gas hose or filter. Clean all items.

There are many reasons for malfunctions. The symptoms we described will help determine what problem has occurred in your circuit. Pay attention to the operation of the technique and compare with the indicated problems. If you cannot eliminate the problem yourself, contact a specialist.