Sensors for gas boiler Buderus. OOO "Mark" catalog of spare parts for the repair of burners of all types and manufacturers. Buderus boiler: German quality and European versatility
Undoubtedly the German brand Buderus produces high-quality heating equipment and, in particular, wall-mounted gas boilers. But after 2 years of flawless use of the Logamax U054-24K, I encountered one problem that began to spoil all my positive impressions about this product. The boiler began to behave unstable when drawing water hot water.
You open the tap with hot water and you expect that it will heat up any moment, but for some reason this does not happen. Or you've been standing in the shower for about 5 minutes, set yourself an acceptable temperature using the mixer, and then suddenly bam - and it starts pouring cold water! You have to turn off the water supply, then open the tap again and wait for hot water to flow again. And it’s not a fact that it will work out the first time! And so it went on for a long time, until I began to analyze the problem. I noticed one difference in the operation of the boiler compared to when it was working properly. When the burner was automatically ignited at the time of water withdrawal or at the moment when the temperature of the heating circuit dropped below the set temperature, the spark of the ignition electrode continued to crackle for some time, although the fire in the combustion chamber had already been lit. And such a characteristic crackle of a spark could last up to 5-8 seconds after the chamber fuse.
One could assume that there is some kind of sensor that is responsible for igniting the camera and that it is this sensor that does not give a signal to the system that everything is already on fire and there is no need to try to light the camera anymore... In principle, this is how it turned out, after reading in I found out on the Internet that there is a flame control sensor, with the help of which the system understands whether the chamber is lit or not, and if there is no flame, the system stops supplying gas. In my boiler, an ionized electrode, which is located in the combustion chamber, is responsible for this... And it turns out that precisely when the system cannot recognize whether there is a fire in the combustion chamber or not, the boiler begins to blow away the tower, and it begins to behave very unpredictably :) Maybe turn off the gas supply at any time or continue to stubbornly torment the electronic ignition.
They wrote so much about solving this problem on the Internet: that it is necessary to ground the boiler, otherwise the sensors will not work correctly, and that it is necessary to turn on the boiler through a voltage stabilizer, otherwise due to some noise in the network everything will work crookedly... My boiler was never grounded and there was never a voltage stabilizer, how could it work in such “harsh” conditions as Swiss Watches 2 whole years?!!! But there was one adequate person who said - I just cleaned the electrode with sandpaper and that’s it... I took it skeptically... But I thought, it’s not difficult for me to do this, I’ll try, maybe it really stops working due to carbon deposits... and what do you think when after After stripping the electrode, I assembled the boiler, everything worked! I was pleasantly surprised by the simplicity of solving the problem...
Now I every six months - after heating season and before it I clean the electrode from carbon deposits and I don’t know of any problems with the boiler. I missed cleaning it once in the spring and by winter the same problem appeared again. I disassembled, cleaned, reassembled and the boiler continued to work like a clock. In addition, at the same time I do preventive maintenance, in the form of cleaning from dust, which, in principle, should happen according to the work regulations of specialists who service gas equipment...
Here brief instructions in the picture for solving the problem with the flame sensor / control electrode in Buderus.
1. Be sure to turn off the power to the boiler. Unscrew the screws from the bottom of the casing. We remove the casing.
2. Unscrew the screws from the protective metal cover, we remove it. You can also unscrew the screw that secures the front panel to get inside and clean it from dust. Carefully lower the front panel down.
3. Next, you need to disassemble the combustion chamber. To do this, first unscrew the 2 screws on top of the front wall. Then we unscrew the fixing clamps on the sides and carefully try to pull out the front wall of the chamber.
4. Here we are in the combustion chamber. The control electrode (flame control sensor) is located at the far wall in the right corner. So we clean it from carbon deposits with sandpaper. I also usually clean the entire chamber, as well as the nozzles, using a brush and a vacuum cleaner.
5. Now we assemble everything in reverse order. And we start the boiler.
As you can see, there is nothing complicated in this procedure. Hope it's useful to someone this instruction and you will not cause grief to the masters, but will do everything yourself.
The Buderus company is the oldest company in the world producing heating systems and appliances: the first Buderus boilers put into mass production at the end of the 18th century. Even then, the products were distinguished by the highest performance characteristics, which increased after the company became part of the world-famous Bosch brand. Spare parts for heating and heating equipment presented on Buderus official website, can be purchased from our company.
Buderus boiler: German quality and European versatility
Submitted on the official website of Buderus boilers They differ from competitors primarily in their versatility and increased fuel economy. The equipment is designed to burn any fuel: natural gas, wood, fuel oil. At the same time, non-production costs are kept to a minimum: energy is not released into the air, but is collected by special systems and reused. This significantly reduces costs and saves the environment.
- The company's product range includes boilers, burners, steam generators, automated control systems and other devices.
- Innovative technologies allow you to use equipment as efficiently as possible.
- Heating and water heating devices for domestic and industrial needs.
- An extensive network of branches around the world is an indicator of the company’s success.
- Production boilers Buderus are located together with warehouses, which is extremely convenient for clients.
Timely service is the key to long service life
Prevention of problems and proper care of water heating and heating equipment is a guarantee of the reliability and safety of the device. Boiler Buderus, like any other complex device, requires constant attention and qualified service. Our company offers original parts and spare parts for the prevention of malfunctions and repair of any Buderus boilers from the official website companies.
- We have equipment for floor-standing and wall-mounted boilers of various capacities.
- We cooperate with industrial organizations and individuals.
- Delivery is carried out as quickly as possible thanks to our own warehouse.
- Prices are minimal for any products with Buderus official website.
- We work throughout Russia and will deliver equipment to the most remote point of the country.
At Geyser you can purchase any Buderus components and sensors. We sell spare parts for all types heating equipment. If your boiler needs repairs, we can provide you with original German-made parts. From us you can buy a sensor for gas boiler Buderus according to the most low prices and with a manufacturer's warranty. In our warehouses you will always find all the spare parts you need.
Features of our components
Buderus temperature sensors ensure uninterrupted automatic operation boilers and heating systems, so it is very important that they are of excellent quality. All our components are manufactured using the latest technologies and are made only from reliable materials. This approach ensures long and trouble-free performance of parts.
When ordering a Buderus boiler sensor from us, know that it will ideally suit your heating equipment. The thoughtful design of the thermostat guarantees ease of installation and high performance characteristics. Here you can find Buderus boiler temperature sensors for any household appliance:
- Gas boilers;
- Electric boilers;
- Solid fuel boilers;
- Boilers;
- Solar systems;
- Heat pumps, etc.
Sensors for Buderus, Junkers and Bosch boilers
Our company is official representative Buderus and others famous brands. Moreover, the products have all the necessary quality certificates and licenses. You can be sure that you are receiving quality components from a reliable supplier. If you need a sensor for Bosch hot water, then after calling our specialists you will have it in the shortest possible time.
All parts for heating systems are high-tech equipment manufactured by professionals. We will answer all your questions regarding the installation of spare parts and advise you on how to do it better. In addition, we can supply you with reliable temperature sensors flue gases Buderus, which are able to provide careful temperature control in the boiler.
Flow sensors and differential relay
The Geyser company is actively engaged in the sale of all possible spare parts for heating equipment, including Buderus flow sensors. These devices are capable of detecting the speed of water flow and transmitting an electrical pulse to the electronic board of the boiler, so that you get a stable water temperature at the output. In the online store you can buy these parts at affordable prices.
In addition to Buderus flow sensors, you can purchase a differential relay for all types of boilers. It monitors the pressure difference in the heating system. The Buderus differential pressure switch will ensure the proper operation of your boiler, and high-quality assembly guarantees a long service life of the part.
Our products are always in stock and in excellent condition. Therefore, if you need a differential pressure switch for Buderus, Junkers or Bosch boilers, then you know who to contact.
Geyser company is your reliable partner
Working with us, you will receive high-quality and professional service at an affordable cost. In addition to parts for heating system, we offer boiler installation and repair services. We know all the nuances of our equipment, so we quickly cope with its restoration and adjustment.
Trust us and you won't regret it. We work quickly, efficiently and professionally. Absolutely all of our clients are satisfied with their cooperation with us.
05.11.2017
Buderus boiler error 6a
Wall-mounted gas boilers Buderus
Buderus has been part of the Bosch group since 2003. Wall boilers This brand is represented by three model series Logamax U072, Logamax U052 and Logamax U044.
The company provides a wide the lineup boilers of various technical equipment.
The series and model of the boiler is usually indicated on a special plate, which is located on the boiler. For example, Logamax U072 - 24K means:
U – gas heater with circulation pump
0 – gas-burner with pre-mixing
7 – boiler series
2 – type of combustion chamber (2 – closed, 4 – open)
24 – boiler rated power
K – two-circuit model
If problems arise, this information will be useful in diagnosing the nature of the problem.
The seventh series of Logamax U072 boilers is represented by the widest model range in the power range from 12 to 35 kilowatts. Boilers of this series are widely used for apartment heating and heating of small private houses.
Distinctive features:
low noise level - boilers operate very quietly indeed
variable speed fan
stylish design and convenient control
Boiler with modern technical equipment, compact size and affordable price.
Buderus boiler malfunction
Like any other wall-mounted boiler, Buderus is equipped with a protection system and if an emergency occurs, the operation will be stopped and the user will receive an error message indicating in which system of the unit the malfunction occurred.
Some devices are equipped with an LCD display, and the user will see an error code. If the boiler is not equipped with a display, the fault will be indicated by flashing temperature indicators. For example, if the temperature indicator flashes 80, this means a 3C error, which would appear on a similar boiler with a display.
Full list Error codes reflected by blinking indicators can be seen in the figure. Next, we will consider the most popular errors and recommendations for eliminating them.
Buderus boiler error 6a
Error buderus 6a (second indicator flashes) occurs when the boiler does not detect a flame on the burner. Flame control is one of the most important functions of a safety system. To control the flame, there is a special electrode on the burner through which a small current flows during combustion. The control board constantly records this current. If for some reason the current at the ionization electrode disappears, error 6a occurs. The same thing will happen, for example, after several unsuccessful attempts to ignite the boiler - this is the most common situation.
The reasons are standard for all boilers:
incorrect adjustment of the gas valve (insufficient supply gas pressure)
poor contact or lack of signal from the flame ionization sensor
malfunction of the flame control sensor (contamination, breakdown)
failure of the control board (required)
incorrect electrical connection of the boiler (lack of grounding)
lack of air for proper combustion(lack of traction, clogged intake pipe)
Error buderus 6a is classified as critical, which means that after such a malfunction occurs, the boiler will not start on its own - the error must be reset!
There are two options to reset the error:
keep the OK button pressed until the fault signs disappear, the boiler starts working again and the display shows the flow temperature.
Turn the boiler power on and off
Buderus boiler error 6a how to fix
First of all, you need to exclude the accidental occurrence of an error and simply reset it. If the error occurs again and the boiler does not start, then the problem requires a solution. In most cases, ignition problems can only be corrected by a qualified specialist. The simplest thing that can be done is to inspect the combustion chamber and electrodes for contamination and clean if necessary.
If the boiler makes unsuccessful attempts to ignite, visually check that the spark is striking the burner and not somewhere else. If you hear a crackling sound, but there is no spark between the electrode and the burner, the insulation of the electrode is probably damaged somewhere and needs to be replaced.
The gas valve can only be adjusted by a specialist. Checking the presence of proper network gas pressure can be done through gas stove. If you light all the burners on the stove at the same time, they should work without interruption. If this is not the case, we can assume that the incoming pressure is not enough and you need to call the gas service.
In our practice, there was a case when a crack in the combustion chamber inspection window was the cause of a malfunction.
If the boiler lights up, but goes out after a while, this may be due to a faulty electronic board. You can check by replacing the board with a known good one.
Buderus error 3c (fourth indicator 80 flashes)
If such an error occurs, the boiler control board does not receive a signal from the differential pressure switch, that is, its contacts do not close after the fan starts. The pressure switch is used to determine necessary conditions removal of combustion products.
The procedure for putting the boiler into operation is as follows:
The control unit gives a signal to start the fan
The fan creates the necessary vacuum in the exhaust pipe
The differential relay registers the vacuum and the microswitch contacts close
The board sends a signal to open the gas valve and ignite
Therefore, to understand the problem, you need to determine at what specific moment the boiler goes into error. If the fan starts, but the relay does not click, it is tedious to inspect the supply pipes; perhaps there is a blockage or condensation, or there is actually a blockage in the chimney itself.
If the fan does not start, you need to check whether voltage is supplied to it. A faulty electronic board may be the reason why the fan does not start.
If the fan is working, there are no problems with the chimney and the pneumatic relay tubes, you need to check the pneumatic relay itself, creating a vacuum yourself and checking for a characteristic click.
Constantly closed relay contacts or their opening during burner operation will also be regarded by the security system as a malfunction.
Buderus boilers can be equipped with a fan with adjustable rotation speed, which is controlled electronically and equipped with a sensor.
Error 4C (first indicator blinks)
The error occurs either when there is insufficient pressure in the heating system, or when there is too much high temperature at the outlet of the primary heat exchanger. You need to check the pressure gauge reading. If the pressure in the system is insufficient - less than 0.5 bar, it is necessary to recharge the boiler. Too high a temperature on the heat exchanger can also be caused by problems with coolant circulation or air lock. The source of the error is either a hydraulic pressure switch or a boiler water temperature limiter - a thermostat, which is located immediately at the outlet of the heat exchanger.
Error 4Y (first two lights flash)
The flow temperature sensor is faulty. For diagnostics, you need to measure the resistance at the sensor contacts. At room temperature it must be within 10 kOhm, the sensor connection must be reliable, because in case of a break there will also be an error. The logic of the CL error is the same, only for the DHW temperature sensor. If the temperature sensor malfunctions, the boiler operation is blocked, leaving only the circulation pump to operate to prevent freezing. If the DHW temperature sensor is damaged, the boiler operation will not be blocked.
Error 2E (the first three indicators blink)
The logic of the error is that the supply temperature rises too quickly, i.e. The coolant at the outlet of the heat exchanger heats up too quickly and to prevent emergency overheating, the operation of the boiler is blocked for two minutes. The main reason for this behavior of the boiler may be poor coolant circulation. Poor circulation can most often be caused by:
malfunction circulation pump or lack of performance
heat exchanger clogged with dirt or scale
air in the heating system
In this article we looked at the most common malfunctions of Buderus gas boilers. A complete list of errors is contained in the equipment operating manual. Modern gas systems are designed so that the elements are as accessible as possible for simplicity. service. The user can eliminate some errors independently, for example, refill the boiler or inspect the chimney for blockages.
Any actions for self-diagnosis should be taken only in case of urgent need and in compliance with precautions and safety measures. If you do not have an idea of the operating principles and design of a gas boiler, it is better to call a qualified specialist. The Buderus company posts educational videos in which a specialist talks, including about boiler errors that occur.
