DIY Lemax boiler repair

In detail: do-it-yourself repair of Lemax boilers from a real master for the site my.housecope.com.

Heating systems for country and country houses. Boilers, gas water heaters, water heaters - Repair, service, operation. Recommendations for assembly and installation.

boiler Lemax floor, with two buttons, red and white. It stopped automatically starting, the wick is on, and it starts up when the gas regulator is set to zero, and then you raise the temperature and the boiler lights up, please tell me good people what could be the problem, otherwise we freeze at night.

wedges the rod in the middle of the automation.

my Lemax ksg-20d boiler with a gtu 24d burner goes out in the wind on the igniter. came from the gas service and changed the thermocouple all the time, and so on 3 times. tell me how to fix this malfunction?

it is necessary to increase the gas supply to the pilot burner, most likely when the main burner is turned on, the flame at the pilot burner decreases, which leads to the activation of the automatic protection. But one of the main reasons for this phenomenon is a decrease in gas pressure in the gas distribution system or, as mentioned above, the overturning of the draft in the chimney due to its incorrect installation.

Please tell me how many liters of water should be in the heating system for lemax ksg 20 mn, I have about 180m2 in the house and about 300 liters of water in the system. is it ok?

For 1 kW - 12-14 liters of water.

I purchased a gas boiler Lemax designed for 300 sq. eats gas all the time. Please tell me what could be the reason for this.

This phenomenon is observed if:

Video (click to play).

- The square of the heated area (300 m / sq) is equal to the power of the boiler (30 kW). Usually, the boiler is selected by 20 percent more in power than the heating area.

- If, with the above-mentioned area-power equalities, the heat carrier (water) is distilled by a pump, and not by gravity. The boiler simply does not have time to warm up this difference of 1-2 degrees (in the boiler itself, and not in the system, where the difference between the supply and return can reach up to 10 degrees) for the desired automatic operation, the volume of water that the pump drives.

In this case, the pump should be used only for a short time (3-5 minutes) to equalize the temperature at all heating points, and turn off the rest of the time. There are also nuances, but this is a more serious approach to this topic, where many factors and details are important and relevant.

boiler 2 years for 350 sq.m. in your own two-story house. specially bought a non-volatile cast iron, hoped to enjoy the winter and now in the off-season heat in the house. As spring or autumn comes, it goes out 20 times a day, but now I sat next to it for 2 hours, I can’t light it up, I’m tired of holding the igniter button, there the gas does not enter the burners at all. We bought it on our own head, it was necessary first to really read the reviews.

The whole problem is in the traction sensor, or rather in the connectors, you take it off or move it and the boiler starts working.

8 years ago I installed myself a Lemax Ksg-7.5 boiler. The first 3 years worked flawlessly, then problems with ignition began, tk. the boiler goes out constantly. The traction sensor, overheating was turned off. Now also email. the solenoid valve is broken. And generally I don’t understand, couldn’t it be more convenient to make the ignition button, when you light it up for 2 hours - you don’t feel your fingers.

just like that the boiler does not turn off, you need to look for the reason, if you are sure that the magnetic valve is broken, then replace it, and the draft sensor was turned off in vain.

Lemax KSG-12.5D boiler (GGU-15D burner). it went out sharply, it did not work out again. What to do, what is the reason?

Most likely, the pilot (pilot) burner jet is clogged. It is necessary to unscrew the thermocouple nut (located to the right of the igniter), take it to the side, unscrew the igniter tube nut, take the tube aside to get the nozzle, blow it out.

Lemax KGS-16D, the amount of coolant is up to 240 liters, when I bought it I thought it would work fine. I would have known that it would be so, the KChM would not have touched. Why then, if it is difficult for Lemax to push CO, it does not throw water through the air tube into the expansion tank, it works without any noises and knocks, heats itself up to 90g and is cut down, cools down a little and works again. And at the exit 60gr.

Turn off the thermostat, then the water fountain. About 240 liters. Will work fine. but with a pump it will be noticeably more economical than KChM.

Gas boiler Lemax, ignition system Sit 710, when the ignition button is released, the wick goes out, What should I do? Shorted the sensor with two wires outside. It works. Can I leave it like that?

nine out of ten boilers operate with shorted thermocouples. In theory, yes, this should not be done, it is dangerous. Because if the gas supply is cut off, the thermocouple must disconnect and shut off the gas supply, thereby preventing leakage. In practice: a thermocouple burns out on the wick very quickly (because they have a very poor-quality soldering), even for a season they do not have enough, it is sometimes quite difficult to buy a new one, and it is expensive.

Tell me from what the boiler can turn off by itself. This happens especially often in bad and windy weather. How can this be fixed?

After ignition of the igniter, the emk should work in 15-20 seconds. After the igniter goes out, the emk is turned off (a click is heard) - at least 10-12 seconds.

Tell me why, when the burner turns off and only the igniter is on, the fire is knocked out forward - so that there is a danger for the gas burner device, because the fire is burning directly under it?

Because there is no thrust. The channels in the heat exchanger may be clogged with soot.

Tell me, please, here we have a Lemax boiler, since 2009, we bought a new one. All this time, the huge problem is to light it up. When ignited, when you release the button, the wick immediately goes out. We tried to hold the button for a long time. Nothing helps. Sometimes you have to kindle for several hours to ignite the wick. foremen from the gas service said that these were some kind of contacts. they didn't explain or fix anything. What to do?

It is necessary to turn off the draft sensor, which is located at the back of the boiler, and problems should not arise. Check if the protection works in the event of a gas cutoff, the protection should work and the boiler will shut down. The sensor is located at the top of the back or on the gas burner itself.

The Lemax boiler does not turn on, what should I do?

The thermocouple contacts may have acidified or the thermocouple has burned out. You need to clean the contacts or replace the thermocouple.

There is a gas boiler Lemax KSG-10 automatic MiniSit. There was always a problem with ignition, there you need to press a large button, light the wick and slowly release the button, and at this time the igniter goes out, very strong nerves are required to release this button slowly, slightly twitched and the valve cuts off the gas, the igniter goes out.

During the ignition, I close the contacts directly on the automation, these contacts go to the draft sensor, when the boiler flared up and reached the temperature after 20 minutes, I removed the jumper and the automation worked as usual, but something broke and now the boiler goes out when I remove the jumper, I tried to replace this traction sensor, it turned out to be a regular thermostat, I had it at 110 degrees, I did not find one, I found it at 120, and then at 95, there is no effect from the replacement.

It is scary to operate with a closed jumper, because if it dies out from the wind or something else the valve does not work, I checked it. Something tells me that it is automatic, and not this sensor. What do you think?

To determine the malfunction, you need to do several checks:

- Check how the pilot is heating the thermocouple. The flame should wash well at the working end.

- Are the air injection holes in the pilot burner clean?

- Is the contact between the terminals and the wires secure? The best part is soldering.

- Check if the adapter is well tightened near the gas valve, where the wires and thermocouple come from.

The 710 minisit valve generally works without breakage. Also during operation, the holes may become clogged, which must be cleaned.

Lemax K-Plus boiler, when the boiler is started, an E5 alarm periodically occurs, but the boiler does not go into an accident, but continues to work, but after several restarts, an E9 error appears, constantly repeating E5. The board was changed, the pneumorel was also changed. What could be? In the stabilizer, the phase is through, the stabilizer is autotransformer.

Measure the voltage on the contacts of the pressostat themselves and on the board, perhaps the problem is in bad contacts. And there should be zero throughput, and in phase - regulation.

I have a new Lemax-10 boiler. There is only one problem - it periodically goes out and goes out. They came from the gas service - sang something about a bad chimney, like you need to solve the problem there first, and left. There may of course be a problem in the chimney, but the old AOGV boiler has worked for 23 years with this chimney. Friends, what is the reason for this behavior of the boiler, what should I do?

First, check your cravings. It is possible that when burning, the flame simply does not hit the thermostat, the automation thinks that the flame has gone out and turns off the gas. This error often occurs due to mechanical damage or clogging of the nozzle.

Boiler "Lemax" Taganrog. Danko automatics. I cannot light the boiler. The wick goes out after releasing the button, no matter how long you keep it pressed. The thermocouple is washed by a flame, there is a thrust, and the gas pressure is sufficient. Contacts are recommended to be cleaned. Help with advice, please. When I release the start button, a faint metallic click is heard when the flame is extinguished.

A question for the Eurosit630 specialists - should the automation, with normal setting, increase the power when turning by large divisions linearly or not? for me - from almost 3 and above, the division goes to the maximum. no linear power increases, and even the automation itself is not observed.

Perhaps the reason is in the traction sensor - it is poorly fixed. You can solder wires to the sensor instead of the removable pins and fix them.

Heating water-heating boiler LEMAX KSG-7,5 with "Comfort" automatic equipment. The water temperature gauge is working, the thermostat knob is working, the batteries are evenly heated. But AUTOMATICA did not start working on the thermostat, it stopped switching off periodically. I cannot understand the reason.

It can be assumed that when the boiler is operating, when the water temperature reaches the set value, the main burner does not switch to the “low gas” operating mode. The solution to the problem is to replace the “bellows-thermocylinder” thermosystem.

for five years the boiler lemax ksg12 stood, area 30 sq. m, the consumption is small, but the water temperature is not more than 60 burns incessantly two batteries of medium 14 sections, how to make it warmer, how to raise the temperature in the boiler?

in severe frosts, the pressure in the gas line drops, respectively, less gas is supplied to the boiler than is required, from this and the temperature of the coolant is less than the specified one. Installing a circulation pump can also help.

According to safety rules, the repair of all equipment dangerous in operation, which includes gas heating units, must be carried out by specially trained qualified specialists. However, in remote areas, the arrival of a specialized repair team can be expected for a very long time. Therefore, in case of emergency, if the matter does not concern automation and the gas pipe, you can do it yourself and repair the gas boiler yourself.

Modern gas heating systems are complex systems.Control of their work is carried out using a whole range of automatic devices, which must be familiarized with before starting an independent repair of gas boilers.

The main elements of the security group:

Draft sensors designed for 75 0 C. This device makes it possible to monitor the state of the chimney. If the normal flue gas discharge fails, the temperature rises and the sensor is triggered. Optimally, in addition to the traction sensor, a gas alarm is acquired.
The monostat protects turbocharged gas units from impaired removal of combustion products due to a clogged chimney or heat exchanger.
The limit thermostat is designed to control the temperature of the heating medium in the heating system. When the water boils, the overheating sensor turns off the device.
When the flame is detected, the flame control electrode switches off the operation of the heating unit.
A blast valve is used to control pressure. With an increase in pressure above the critical value, a portioned discharge of excess coolant occurs.

Attention! The wear of the stuffing box leads to a constant flow of the coolant from the valve. The remedy is to replace the valve.

Various components of the heating system can fail and for various reasons. It can be - low-quality parts, violation of the requirements for operation, sharp blows to the component parts of the unit.

The most common reason for the failure of volatile devices is a configuration failure. Do-it-yourself gas boiler repair should begin by checking that the settings are correctly installed and the presence of open contacts. When troubleshooting, the unit is set to the "Winter" mode and the setting is set to the maximum heating temperature.
If the pump does not work, then either you just need to replace the cable, or you will have to change the pump itself.
If the burner is not supplied with gas, then it is necessary to make sure that the gas valve is open, the gas line is not clogged, the voltage supply is in order. If the problem persists, after all these steps, you will most likely have to change the electronic board.

The shutdown of parapet boilers in severe frosts can be caused by the appearance of ice on the chimney. The formation of an ice crust is explained by the content of water vapor in the exhaust combustion products. As a result of freezing of ice build-up and obstruction of the exit of flue gases, the device is automatically turned off and attempts to turn it on again will be unsuccessful.

Advice! In this case, the automation of the boiler equipment does not fail, and to resume the operation of the heating equipment, it is enough to remove the ice from the smoke grate. In order to avoid such stoppages of the units, it is necessary to periodically inspect the chimney in severe frosts.

Do-it-yourself gas boiler repair is not always possible and only in cases of visible and simple malfunctions. Complex breakdowns can be corrected efficiently and reliably only by specialists with the necessary knowledge and equipment.

Modern gas boilers are quite sophisticated technological equipment. With proper care and proper handling, the gas boiler will serve for a long time without any interruptions. However, even the most expensive and functional equipment has its own resource, after the exhaustion of which all sorts of malfunctions begin to appear. Image - DIY lemax boiler repair

DIY gas boiler repair

Knowing the main causes of malfunctions and the procedure for eliminating them, you can repair your gas boiler with your own hands. This is a very painstaking, responsible, but in most cases relatively easy job.

Contents of step-by-step instructions:

First of all, it is necessary to establish why any malfunctions may occur in the operation of gas heating boilers. A number of different factors can lead to problems.

Modern gas boilers are equipped with various automation equipment. These funds, in turn, are powered by electricity. And, despite the fact that the 21st century is already in the yard and systems for the use of alternative energy sources are being actively developed around the world, the problem of stability of power grids remains relevant for many regions, especially for remote villages and all kinds of summer cottages.

A sudden power outage or a strong surge in electricity is one of the main enemies of any modern gas boiler.

To avoid all the accompanying troubles, buy a quality stabilizer in advance. Do not spare money to buy this device - there is little sense from cheap models, so it is better to immediately allocate funds to purchase a good stabilizer from a well-known manufacturer. Be sure that in the event of a breakdown of the automation, you will spend much more money on its repair and replacement.

At home, wall-mounted models of gas boilers are often used. Such devices are simultaneously responsible for both space heating and hot water preparation.

The design of wall-hung boilers includes a flow-through heat exchanger. Low-quality hard water with various impurities is the main enemy of the heat exchanger of a gas boiler. At the same time, under the influence of low-quality water, the heat exchanger can fail in just one season.

Install special filters to prevent such damage. The best option is a complete water purification system. With it, your boiler will work as long as possible, and using purified water is much safer for health.

Any knowledgeable person will tell you: only qualified specialists should be engaged in the installation and piping of gas heating equipment.

Even the slightest mistakes at the stages of installation and connection of equipment can lead to irreversible consequences. For example, an incorrectly executed piping in the case of a cast-iron gas boiler more powerful than 50 kW will lead to the fact that the unit will simply split at low temperatures.

If you are not an experienced gas operator, entrust the boiler installation to professionals.

Therefore, if you are not an experienced gas operator, entrust the installation of the boiler to professionals - this way you will save yourself from many problems in the future.

Unfavorable weather conditions can also lead to the appearance of many different problems. In frosty winters, people turn on the heating at almost full capacity. This leads to a significant decrease in pressure in the gas pipeline system. As a result, boilers cannot fully realize their potential.

You will not be able to solve this problem on your own - you still cannot explain to your neighbors that by their actions they only aggravate the situation. As a solution to the problem, you can install an additional boiler that runs on a different fuel.

Automatic solid fuel coal-fired boiler with hopper

A modern gas boiler is a complex and potentially dangerous system. The main danger of such units is the risk of a gas explosion in the event of improper handling of the equipment or untimely elimination of various malfunctions.

Various kinds of automation are responsible for maintaining the operation of the gas boiler at an optimal level. An inexperienced user is often unable to understand its device. Therefore, it is better to immediately invite specialists to troubleshoot serious problems.

On your own, you can try to eliminate only visible damage and various contaminants that have led to the failure of the pipe, chimney and other parts of the boiler.

Typical malfunctions of gas boilers

There are a number of typical problems that you can fix yourself in most cases. Problems will also be listed, in the event of which you can only protect yourself before the arrival of a specialist.

If a distinct smell of gas or smoke appears in the room, immediately turn off the boiler and leave the room, opening it for ventilation.

Gas boiler functionality diagram

Call a professional immediately. Trying to solve the gas leak problem on your own without the necessary skills is extremely dangerous and unreasonable.

If the flame sensor or the gas supply pipe breaks down, turn off the boiler, close all gas valves and let the unit cool down completely.

Return to the area after a while to check for the smell of gas. If everything is in order with the draft, try to turn on the boiler again. If there is no thrust, immediately call a repairman.

Overheating is one of the most common problems in modern gas boilers. The reason for this may be a malfunction of the automation equipment or a clogged heat exchanger.

It is impossible to cope with the repair of automation without the appropriate knowledge.

You can also clean the heat exchanger with your own hands. The most common materials for the manufacture of heat exchangers are copper and stainless steel. There is usually no problem cleaning them, but be extremely careful anyway.

Primary heat exchanger for wall mounted gas boiler Beretta

According to the recommendations of the manufacturers, the heat exchangers must be cleaned of soot every few years (each manufacturer indicates a specific interval in the instructions for their equipment).

Primary heat exchanger (heating circuit) of the gas boiler Rinnai SMF

To clean the heat exchanger, simply remove it and clean it thoroughly with a metal brush. In the case of a copper heat exchanger, it is best to replace the brush with a metal sponge used for washing dishes.

The problematic place of fans is their bearings. If the fan of your boiler stops developing the set number of revolutions, try to eliminate the problem as soon as possible.

Fan (3311806000) for Daewoo gas boiler

To do this, remove the back of the fan, take out the stator and lubricate the bearings. Machine oil is fine for lubrication, but it is best to use a higher quality carbon compound with heat-resistant properties if possible.

Fan RLA97 (Aa10020004) for gas boiler Electrolux

Also, an interturn short circuit can lead to problems with the fan. Only a specialist can cope with the elimination of this malfunction. Return the stator for repair to replace the winding, or immediately replace the faulty unit with a new device.

Gas boiler chimney diagram

Often, excessive clogging of the coaxial chimney leads to the appearance of various malfunctions in the operation of a gas heating boiler.

Remove the chimney and thoroughly clean all of its components from soot. So you will not only return the previous level of efficiency of the unit, but also significantly increase the efficiency of the boiler.

The boiler can shut down spontaneously for several reasons. This usually happens due to a malfunction of the combustion sensor. This problem, in turn, most often leads to contamination of the gas pipe.

Draft sensor 87 ° C for Thermona boiler

Remove the branch pipe, rinse it thoroughly with water, clean it with a cotton swab and blow it off the remaining moisture. Put the pipe back in place and try to turn on the boiler. If it doesn't help, call the wizard.

No wonder they say: the best repair is prevention. Gas boilers require annual preventive maintenance, which must be carried out before the start of the heating season.

Whenever possible, maintenance should be carried out twice a year, before and after the heating season.

Check all the previously discussed boiler elements for their serviceability. Follow the preventive maintenance recommendations given by the manufacturer in the instructions specific to your boiler.Eliminate any malfunctions that arise in time, if possible.

Remember! A gas boiler is a potentially hazardous equipment. Incorrect use and untimely troubleshooting can lead to irreparable consequences. Therefore, be careful and do not engage in any repair work if you doubt your ability and correctness of action. Otherwise, follow the instructions provided.

If your Lemax boiler is broken, then we recommend buy a new gas boiler Lemax with a reinforced board, an improved model without flaws (no need to repair), or choose another Wall mounted gas boiler.Consultation by phone: 8029-123-9999Gas questionLemax boiler:
Good day. I have a Lemax floor boiler, there is a red button and a white one. My boiler does not start automatically, the wick is on, but it turns on only when I turn the gas regulator to zero, and then I raise the temperature and the boiler starts up, please tell me what my problem is, otherwise we measure it at night. Help me figure it out.
Sergei Answer:
Hello Sergey. Your problem is this: you have a stock wedge in the middle of the automation.Question about Lemax KSG-20:
Greetings to all. Tell me, the man has such a problem: the Lemax KSG-20d boiler is dying, I have it with the GTU-24d burner, if the wind blows on the igniter. Gas workers have already changed the thermocouple three times, but it seems that they themselves do not understand anything. What is the problem?
Vasily Vasilievich.Answer:
Hello, Vasily Vasilievich. Your problem is the following: when you turn on the main burner, it leads to a decrease in the fuel supply to the main burner, and this turns on the automatic protection of the boiler. You just need to increase the fuel supply to the firing burner. This is mainly due to the fact that the pressure in the system drops. This can also occur due to the overturning of the draft in the chimney due to its incorrect installation.Question about Lemax KSG-20:
I have a Lemax KSG-20 boiler. Please tell me, in my house there are about 180 square meters and there are about 280 liters of water in the system. Is this amount of water enough for my system under the Lemax KSG-20 boiler or not?
Peter.
Answer:
Hello, Peter. The calculation of water for the system is carried out as follows: one kilowatt requires about twelve to fourteen liters of water. Thanks a question.Question about gas boiler Lemax KSG-30: Good day to you. I bought a Lemax boiler, which is up to three hundred square meters. The installer connected everything to me. Now the boiler works constantly, in other words, the boiler does not turn off after it heats up to the desired temperature. Hectares are consumed constantly, no savings. Why doesn't the boiler turn off when it has heated the room to a suitable temperature?

Read also: DIY diesel gun repair

Answer:
Hello, Stepan Vladimirovich, there may be several reasons for this behavior of gas equipment, however, you have the following problem:- The boiler power is incorrectly selected and it is not enough for your area. We recommend using our equipment selection services in the future, especially since it is absolutely free. The water in the system does not move by itself - it is overtaken by the pump, and the Lemax boiler may simply not have time to heat it by a couple of degrees (inside the boiler, not the system) and the automation does not work on the volume of water that the pump has time to overtake. This means that it is best for you to use the pump for a short time (no more than five minutes) so that the temperature can equalize in all heating places. At other times it is better to turn off the pump. We recommend that you contact us by phone 8-029-123-9999 for more detailed advice.Question about the floor-standing boiler Lemax: I have my own two-story house, the heating area is about three hundred and fifty square meters. We bought a cast-iron Lemax and put it to hell two years ago.Now we have big problems, the boiler is constantly dying out, and we have to constantly go to it and turn it on again, I light it up now it happens for two hours in a row. When I hold the igniter button, it feels like ha does not go into the burners at all. What should I do?
Answer: Good afternoon. The problem lies in the thrust sensor connectors, you need to remove it and check if everything is in order. Our specialist can visit you at any time convenient for you.Question about the Lemax KSG-7.5 boiler: Hello, I have had a Lemax ksg-7.5 boiler for eight years already. At first, he worked perfectly for three years, there are no complaints at all. But in the fourth year, there were minor problems with combustion. The boiler shuts down all the time. Disconnected the traction and overheating sensor, and the solenoid valve broke down altogether. The ignition button is inconvenient, especially if you have to turn on the boiler all the time.
Answer:
Turn the draft sensor back on - it's not the cause. The solenoid valve must be replaced. Contact us by phone indicated on the website and our specialist will go to the place to find the reason for the boiler shutdown.Question about the Lemax KSG-12.5 boiler: I have a Lemax KSG 12.5D boiler with a GGU-15D burner. The boiler has recently gone out and cannot be ignited. What is the reason?
Answer:
The most likely reason for this behavior of the boiler is that the pilot burner orifice is jammed. To fix the problem, you need to unscrew the thermocouple nut, which is located slightly to the right of the igniter. Next, it must be taken a little to the side and unscrew the nut from the apdel. Then take the jet tube and blow it out. The malfunction should be corrected.Question about the Lemax KSG-16 boiler:
I have a Lemax KSG 16 boiler. The amount of water in the system is 230 liters. The boiler cannot push through CO. For some reason, Lemax does not throw water through the pipe in the spirit into the expansion tank. Works silently and does not knock anywhere. But when the boiler heats up to 90 degrees, it turns off, then it cools down for a while and starts working again. But the output is only 60 degrees. How to be?
Answer: You need to turn off the thermostat, then there will be water in and out of the house. The amount of water in the system for this Lemax model is sufficient, but with a pump it will be much more economical.Question about the Sit 710 horn system in the Lemax gas boiler: There is a Sit710 automatic in my boiler and my wick goes out when I release the ignition button. When I closed the circuit with two wires outside, everything started working. What can be done?Answer:
Boiler operation with shorted thermocouples is not recommended. If the gas supply stops, the thermocouple should disconnect and shut off the gas supply, thereby eliminating the leak. But the thermocouple has a very low-quality solder, so the wick burns out quickly. It is expensive, but it happens that it is not enough for the heating season. In practice, many boilers work with shorted thermocouples. However, the manufacturer of gas boilers Lemax does not recommend doing this!Question about the Lemax KSG-10 boiler:
Tell me why my boiler turns off, especially if there is wind and bad weather outside. How can the issue be resolved?
Answer:
When you ignite the seal, the solenoid valve should be activated in twenty seconds. When the seal is extinguished, the solenoid valve is disconnected in ten seconds. When this happens, you will hear a click.Question about Lemax KSG-12.5:
When the burner is turned off, only the seal is on. In this case, the fire flies out, which is a rather dangerous business, after all, ha s! What happens to the boiler?
Answer: You have no chimney draft. This occurs when the heat exchanger channels are soaked with soot. We need the help of a specialist we can provide you.Question about Lemax KSG-16: Help me please. In 2010, we bought a completely new boiler LEMax 16. And from the very beginning of the problem with its ignition, as soon as we release the ignition button, the wick immediately goes out. We tried to hold the button for a very long time, but it does not help.It’s just a few hours of time! And only then the wick somehow starts to burn. Gas workers came and said something with contacts. They did not explain with any contacts, nor what we should do now. How are we to be?You need to disable the draft sensor. This sensor is located on the back of the boiler. This will fix the problem. You also need to check if the automatic protection system works when the gas is turned off.

Question about Lemax KSG-10: My boiler won't turn on. How can I enable it?The most likely reason is that the thermocouple contacts have oxidized and burned out. Try cleaning the thermocouple contacts gently first. If cleaning the contacts at the Lemax boiler does not help, then this thermocouple must be replaced.Question of Lemax KSG-10: I installed myself a Lemax 10 gas boiler with miniSIT automation. From the very beginning I had problems with the combustion. You need to press the ignition button and release it slowly, but if you release it a little bit abruptly, the igniter immediately dies out. With any sharp movement, the gas is cut off and that's it. I got tired of all this and I began to connect the contacts that go to the traction sensor on the automation itself. I waited for the boiler to warm up, it took at least half an hour, and then I opened the contacts and the automatics began to work as usual. After a while, it stopped working, you just have to remove the jumper that connects the contacts. I wanted to change the traction sensor, but it did not help, although I tried several options. There is a possibility that the automation has broken down. What do you advise?
Answer:
To accurately determine the breakdown, you need to do the following:1) Check the heating of the thermocouple with the grommet. How hard does the fire handle the end?
2) Check the degree of clogging of the air holes in the pilot burner. Clean if necessary.
3) Is there a normal soldering in the contact of the terminals with the wires?4) Check how tightly the adapter is tightened near the gas valve; wires and a thermocouple are pulled from there.
5) The miniSIT 710 valve has proven to be a reliable piece of equipment, but during use the holes can get clogged and you need to clean them to fix the damage.Question about the Lemax K-PLUS boiler: In my boiler, Lemax k-plus sometimes shows an E5 error, but the boiler works, and if you overload it several times, it starts to show an E9 error. Moreover, E5 also constantly shows. In the summer, the pneumorele was replaced, but it did not help. After a couple of months, I changed the entire board, but that didn't help either. How can I solve the problem?
Answer:
You need to measure the voltage on the board. Then measure the voltage at the contacts of the pressure switch. There is a chance that the problem is in bad contacts. Passing zero is required, and phase regulation is required.Question about the Lemax-10 boiler:
I bought a new Lemax-10 gas boiler. The boiler goes out constantly. You called the gas workers, they looked at everything and said that the problem is in the old chimney, and first you need to resolve the issue with it. My old boiler has worked with this chimney for over twenty years without any problems. Why does the Lemax boiler constantly go out?
Answer: You need to check the draft of the chimney. There is a possibility that when burning, the fire does not hit the thermostat. In this case, the automation decides that the fire has extinguished and cuts off the gas for your safety. This malfunction may appear due to a breakdown of the injector, or its accumulation.Question about LEMAX boiler: Installed a LEMAX boiler in Vileika. It does not come out to ignite it. The boiler is equipped with Danko's automatic equipment. As soon as I release the button, the wick dies out. Keep it pressed for at least an hour, but as soon as you release it, the boiler went out. I read your forum, followed all the instructions:- I checked how well the thermocouple is washed by the flame - enough.- checked the draft of the chimney - there is enough draft.- checked the gas pressure - also normal.- cleaned, as they write on the forum, contacts.But even these tips did not help me.One has only to release the button, the flame goes out and that's it. A metallic click is heard when the button is released.
Answer: Such a malfunction manifests itself with a poorly fixed traction sensor. Try soldering the wires to the draft sensor.Question about LEMAX KSG-7.5 : At one fine moment, the automation on the thermostat stopped working, sometimes it turns off. The thermostat knob is working, the temperature indicator is normal. The batteries are all warmed up in the same way. I have a Lemax KSG-7.5 boiler. Automation on a gas boiler is worth - Comfort. I do not understand what the breakdown can be connected with.
Answer:
You need to replace the bellows-thermobalon thermosystem.Question about Lemax KSG-12: For six years, I installed a gas boiler Lemax KSG-12 on my back. My house is small, no more than 35 square meters in area. And, despite the low consumption, the water does not heat up more than sixty degrees. I have two batteries of 15 sections each. I don’t understand how I can make the temperature higher than it is now.
Answer:
Installation of a circulation pump will help you. Sometimes the pressure in the gas line drops.

Video (click to play).

Review of the Salus RT310i regulator. Thermostat characteristics, the main features of the programmer, differences from other Internet thermostats. Consider a smartphone app for controlling a heating and air conditioning system.