Automation of control for gas boilers Bosch GAZ 6000 W
The Bosch 6000 W gas convection boilers control panel with Cotronic 3 data bus allows you to control the heating system depending on the room temperature.
For these wall convection gas boilers, two types of Bosch regulators are recommended.
Programmable Room Temperature Controller OpenThermTM CR12005
Fig. 7. Combination of the programmable room temperature controller OpenThermTM CR12005 with the BOSH 6000 gas convection boiler control panel
Purpose and functions:
Programmable OpenThermTM thermostat to control boilers with COTRONIC 3 data transmission bus.
Data exchange with a double-wire tire.
Two-wire tire technology, reverse polarity protection.
Simple intuitive settings for controlling temperature and cooking hot water.
Preset weekly programs with six switch points. The ability to manually change the program for every day of the week.
LCD display with digital and graphic display of work status.
Displays the current temperature of heating and DHW, outdoor temperature (only if there is a temperature sensor), indication of the status of the boiler burner and error codes.
The ability to remotely reset the boiler error.
Using the OpenThermTM protocol.
The air temperature setting range in the control room 7 ... 39 ° C with a tuning step of 0.5 ° C.
TRZ 12-2 Room Temperature Controller
Fig.8. Combination of the Room Temperature Controller TRZ 12-2 (On / Off) with the Bosch Gaz 6000 W Gas Convection Boiler Control Panel
Description and function of the regulator
TRZ 12-2 Room Temperature Controller is recommended for a two-position control of the burner flame and gas-mounted circulation pump control.
Weekly programming time intervals.
Three modes of operation: "Normal", "economical", "automatic".
Function "Vacation" (up to 99 days).
Frozening prevention function.
Displays the date and current time, auto-matical shift of summer / winter time (synchronization with the system).
Range of adjustment of the room temperature from +5 to +39 ° C.
Faults shown on Bosch 6000 Boiler Display
A7 - Hot water temperature sensor is faulty.
Check the presence of damage or short circuit of the temperature sensor and its wires, replace if necessary.
AD is not identified by the temperature sensor of the boiler.
Check the temperature sensor of the boiler and connecting wire
C1 - Low fan rotation frequency.
Check the network voltage.
C4 - Differential pressure relay does not open when the fan is turned off.
Check the differential pressure relay.
C6 - Differential pressure relay does not closes.
Check Differential Pressure Relay and Turning Pipe flue gases.
C7 - Fan does not work.
Check the fan and its wire with a plug, replace if necessary.
CE - insufficient pressure of the filling of the heating system.
Plot water.
d7 - Faulty gas fittings of the wall boiler Bosch Gaz 6000 W.
Check the connecting wire.
E2 - faulty flow temperature sensor (cliff).
Check out the presence of damage or short circuit of the temperature sensor and its wires, replace if necessary.
E9 - worked the heat exchanger temperature limiter.
Check for damage to the heat exchanger temperature limiter and its connecting wire, replace if necessary.
Check the operating pressure in heating system.
Check the temperature limiter, replace if necessary.
Check the pump start, replace the pump if necessary.
Check the fuse, replace if necessary.
Remove the air from the boiler Bosch 6000 W.
Check the water circuit of the heat exchanger, replace if necessary.
Check for damage to the temperature limiter of flue gases and its connecting wire, replace if necessary.
EA - the flame is not detected.
Check the Protective Wire Connect.
Check if the gas crane opened.
Check the gas pressure supplied, correct if necessary.
Check the connection to the power grid.
Check the electrodes with wires, replace if necessary.
Check the flue gas removal system, clean or repaired if necessary.
Check the gas adjustment, correct if necessary.
For natural gas: Check the gas flow control relay, replace if necessary.
When working with a fence of air for burning out of the room, check the air supply to the room and the ventilation holes.
Clean the heat exchanger.
Check the gas reinforcement, replace if necessary.
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Operation and repair of boilersProterm Panther Proterm Skat Proterm Bear Proterm Cheetah Evan
Ariston Egis Herodar Cooper Atham Zhytomyr Neva Suux Ardery Nova
Thermon Immergaz Electrolux Condord Lemax Galan Mora Athon
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We have such a problem. Boiler Bosch is two-door, we use only six months. Included hot water, and it does not heat, knocks out the boiler and E9 error shows. The filter was cleaned, the device was started, but after an hour it turned off again. The error shows. When you run, the pressure and the unit rises immediately. Then we turn on, the fuses and the boiler shine immediately burn. So we cannot include. Help please in
What could be the reason?
Most likely you are jamming the pump. Usually fuses are burning due to the pump.
Boiler Bosch Gas 6000W. It was purchased in August of this year. As the sharp cooling has come, it turned off and showed the C6 error (the differential pressure relay does not turn on). After removing the front cover, it was discovered that the tubes that fit the relay were covered with anter. After drying the tubes, the device started. This situation is repeated several times. Is there any way
Get rid of this problem?
It is necessary to watch how the smoke removal system is performed. Separate system often leads to such consequences. We recommend replacing coaxial. If there is no possibility to change the chimney, then the tubes must be insulated.
WBN 6000-24 wall boiler. Gas is natural. Already a long time ago an EA error appears. After reading about EA error, I decided to find out the firmware of the board and setting the fan stage. If the version of the software version gives "245-03" and no matter how questions, the fan steps menu showed the digit "17". The smoke system is horizontal with a concentric pipe. From the boiler output about 2 meters. No adapter for fence
Air from the inside of the room is not installed and the air in the unit comes from the outside of the room. What guaranteed the masters by installing the 17th stage of the fan, although, judging by the instructions, the 2nd step is needed. Do I need to change the fee?
Adapter is not needed. You have a standard coaxial with an air fence outside. Helps to get rid of this error to set the fan step in value 5. I was the same, and when I specified 5, there was no error for a year.
Tell me, the burner uses modulation only when using a thermostat or in some more cases?
When the temperature of the coolant approaches the installed boiler modulation, in any case, regardless of whether there is a thermostat or not, but since this process takes a little time it is difficult to fix it. If the thermostat is used, then the modulations begin to occur when the room temperature is approaching the installed. If "ON / OFF" is installed thermostat, then there is no connection.
Private house 70m2 300mm foam block 50 mm minvat and cladding with ceramic bricks. Plans to expand the area for another 50-60 square meters. m. On the first floor there are TP 33m2, the heating batteries are mounted on both floors. The DHW is implemented with a kitchen and a bathroom, the second bathroom will be in the dusting. I want to put the BKN Drazhice 125. Since the riser is mounted in my house, I plan to install wall mounted gas boiler from
coaxial chimney. Consider different variants. The most optimal price is Bosch 6000 (18 kW), but Bosch Gaz 7000 has a minimum power of 24 kW, which is for me, as I think too much. From an important thing, I need that the boiler in the boiler is implemented in the boiler and, in the future, it would be possible to mount a room thermostat and a street sensor. Interested in
The difference between the specified models in the composition of components or at the place of assembly? Maybe there are some other fundamental differences?
In your case, the most optimal will be model Bosch. GAZ WBN6000-18 and WSTB 120.
Bosch WBN 6000 Boiler Error Codes
Error A7. - Facility of the temperature sensor of the DHW. Inspect the sensor for the presence of a defect or short circuit and its wiring. Replace if necessary.
AD error - The unit cannot fix the boiler temperature sensor. It is required to inspect the thermal sensor of the boiler and connecting wires.
Error C1. - The fan rotates low frequency. Need a network voltage check. Also inspect the flue gas output system and, if required, to clean it or repaired.
Error C4. - No opening of the differential pressure relay if the fan is turned off. It is required to inspect the DIF. pressure switch.
Error C6. - The differential pressure relay does not occur. Check the fan and wires with plugs. Run replacement if required. View DIF. Pressure switch and output pipes for combustion products.
Error C7. - The fan does not work. Check the fan and its wires with plugs. Run replacement if required.
CE error - Lack of pressure in the heating system. It is required to pour water.
Error D7. - Malfunction gas system. Check the connecting wire. Inspect the gas system and replace if necessary.
Error E2. - Problem temperature sensor on the feed line (cliff). It is required to check for possible damage or short circuit of the sensor and its wiring. Conduct a replacement if required.
Error E9. - The heat exchanger works the temperature limiter. It is required to check for possible damage to the heat exchanger temperature limiter and its connecting wires. Run the replacement if necessary. Check the nominal pressure in the system. Inspect the temperature limiter and change the new, if necessary. Perform checking the start of the circulation pump and if
It is necessary to replace it. Check fuses, change if necessary. Remove air from the aggregate. Check the water circuit in the heat exchanger. If necessary, replace. Check for possible damage to the temperature limiter of flue gases.
ERROR EA - No flame. Check Connecting Wire Protection. To see if a gas crane is outdoor. Test the testimony of the supplied gas pressure and, if necessary, eliminate. Check connection to electrical network, electrodes with wires and, if required, replaced. Inspect the combustion product output system, clean or repair. Conduct control of gas adjustment, eliminate if necessary. For natural gas: inspect the relay controlling the gas flow. Change if necessary. In the process of working with the air fence for burning out of the room, check the air intake and ventilation holes. Clean the heat exchanger. Check the gas system, replace if required.
Error F7. - When the boiler is disconnected, the flame determines the flame. To check on the oxidation of the electrodes, if necessary, replace. Inspect the combustion product output system and, if necessary, cleaned or repaired. Check for humidity electronic control board, dry, if required.
Error FA. - The flame is defined when the gas flow is disabled. Check the gas system, replace if necessary. Inspect the electrodes and connecting wires, if necessary, replace. Inspect the combustion product output system, clean or repair.
Error P. - The type of boiler is not defined. Configure the type of unit.
FD error
Bosch ZWC MFA Boiler Error Codes
Code A2, C3 - The yield of flue gases on the combustion chamber. Perform checking the heat exchanger for clogging.
Code A3. - The temperature sensor of flue gases is not defined. You need to check for damage the sensor and connecting cables.
Code A4. - The yield of flue gases on the flow fuse. Check out the output of flue gases.
Code A6. - The thermal sensor in the combustion chamber is not defined. You need to check for damage the sensor and connecting cables.
Code A7. - Facility of the temperature sensor of hot water supply (DHW). Check to search for defects or short circuit of the thermal sensor and its wiring, if required - replace.
Code A8. - Contact with bus-bus interrupted. Check the contact cable and regulators.
Code A9. - incorrect installation of the GWS sensor. Check the mounting distances, if necessary, remove the sensor and mount it again using the heat-conducting paste.
AC code - The module is not defined. The module is incorrectly connected. Perform a check of the module, an outdoor temperature sensor, remote control and contacts.
Code AD. - The unit cannot fix the boiler temperature sensor. It is required to see the boiler thermal sensor and the contacts of the wires.
Code B1. - The coding plug is not defined. Spend proper installation coding plug, make it measurement and replace, if required.
C1, C6 codes - The differential pressure relay does not occur. Check the fan and wires with plugs. Run replacement if required. View DIF. Pressure switch and output pipes for combustion products.
Code C4. - Diff. Pressure relay in the disconnected position does not open. Check the differential pressure relay.
CC code - The control unit cannot detect the outdoor temperature sensor. It is required to inspect the sensor and the contact cable for a break.
Code D3. - A jumper 161 was not detected on ST8. If there is a jumper, insert the plug correctly, check the external limiter. In another case: Check if there is a jumper.
Code D4. - There is a large temperature discrepancy. Perform a check of the circulation pump, the bypass and pressure hose in the system.
Code D5. - The external temperature sensor is damaged. Check the sensor and connecting contacts.
Code E2. - The flow temperature sensor is faulty. Check the sensor and connecting contacts.
E9 code - The feed line occurred in the feed line. Perform pressure test in the system, temperature sensors. Check the functions of pumps and fuses on control boardRemove air from the unit.
EA code - The flame is not detected. Inspect the gas crane. Check gas pressure, network connection, ignition electrode with wire and ionization electrode with cable.
Code F0. - Internal problem. Check the correctness of connecting electrical plugs and starting lines, if necessary, replace the e-board.
Code F7. - The flame is determined when the unit is disabled. Check the electrodes and cables. It is possible a flue gas removal system faulty. Check the control board on humidity.
FA code - Flame detection after turning off the gas intake. Make an inspection of the ionization electrode. Check the gas system.
FD code - incorrectly pressing the button (duration of more than 30 seconds). Press the button again less than 30 seconds.
Fault and adjustment boilers Bosch
Bosch assures that its heat exchangers are not covered by a special protective anti-corrosion paint. The heat exchangers of other companies (Viessmann, Vaillant, Ariston, Baxi) caused a protective layer, and they have clean copper. And they exhibit it as the advantages of their models. Is it or it's just the cheapening of the cost of the device.
Copper is indeed not subject to corrosion, which is why it is used. But because of its properties, copper is quite quickly burning.
As I know, there are two options for connecting the BCN to a two-door gas boiler. The first, through a three-way valve. Second, through the hydrotrifer. In both cases, it is used as a consumer for the heating system, respectively, it will heat up from the temperature of the heating system. This is understandable to me. But I do not understand what to do with the discretions of the DHW, and is it possible to put the plugs on them. Initially, I.
It was assumed that I would buy a single-circuit boiler Bosch 6000, but since it was not available, I was recommended to stop your choice on a two-door. And I think, if I will drag out the exits, whether the heat exchanger will not suffer (does it fail without water)? Since keeping the unit that is constantly working at the maximum, I will not, let the BKN work on. Moreover, I have purchased ACV Comfort 130, and it is a tank in the tank, and in essence should better keep the temperature than with a coil. Of the disadvantages of such boilers is the maximum pressure of 3 bars, and the safety valve is also pressure. BUT people They report that if the valve does not work for some reason, the tank will break. About the two-door model - I am afraid that if a boiler refuses, I stay without hot water.
Your conclusions are true only for purified water. For household needs, you can adjust the backup line. But in my memory cases of failure, ACV boilers did not happen.
In a private house, I organize separate smoke removal for the Bosch Gas Boiler 6000 per 24 kW. In this regard, I have two questions. Graduation tract. Is it worth moving from the "pants" 80-80 through a tee with a condensate ride to switch to the diameter of the vertical chimney 100 mm? The cost of pipes of different diameters is not very different from each other. The height of the chimney to the tee is 4800 mm. I bring the pipe through the roof,
Considering 10 degrees. Inlet tract. The air fence is going to organize in the room not heated and well-ventilated attic. Before outdoor Wall About 4 meters. Pick the air from the room is not a good solution. The distance from the point of fence in the indoor indoor to the upper plane of the unit is about 1050 mm (and inside the 800mm boiler room from all length). In winter, such a solution can create a number of problems,
The main thing is that the device will be supplied with outdoor temperature. It is also possible to form a strong condensate on the air duct, which will descend on the housing. But if the condensation can be struggling with thermal insulation, then how to solve the problem of receipt of warm air I do not understand. how option consideredto feed the duct from chimney Baths (need to be screwed
Water register with a diameter of 300-500mm). Circulation in the register to organize a separate circuit. It is very difficult, but should give a result. Tell me, what kind of chimney is suitable for installation on WBN 6000-24 C? It is necessary to remove the chimney immediately over the wall with a thickness of 375 mm, then it will not be necessary to pull it anywhere. Since prices for corporate equipment are very high, I would like to try another manufacturer.
Neva, for example. Will it turn out to reprogram the one-connecting unit if you turn off the GVS duct sensor before?
Not. It will be necessary to replace the control board of a single-circuit boiler and the hydraulicock from it. And also additionally install a three-way valve.
The heat exchangers of the Bosch 6000 gas boiler were washed. The month worked and kept the pressure on 1. Then she attracted a strange murder sound inside it before the burner ignition (in cooling mode), as if water from one mug was overflowing. I looked, and the pressure 0, in theory it was necessary to automatically turn off when the pressure drops in the system to 0.5, but it worked and warmed the battery.
The only thing that appeared another sound and murmur. I added pressure to 1, but the next day the pressure dropped again to 0.5 (that is, there is a water leak somewhere). I checked the pipes and radiators, but I haven't found a leak anywhere. From the unit, either does not eat, and the pressure drops anyway. Tell me what can be
problem and where to look for it?
I had a similar one. In the system, the air and after the operation of the device, the air went out, and the pressure fell. Do you have a valve of an automatic air vent (from top of the pump) not closed? It is necessary that it is always ajar. Pressure is better to bring up to 2 atm. So that the expansion tank in the boiler also takes the volume and compensated for the exit air. In radiators, of course, also burst the air with the air crane Maevsky.
The Gas Wall Copper Bosch 6000 24 kW often issues an EA error and often turns on and off. That is, conditionally, set at least 40 degrees, literally 5 minutes and turned off, etc. It was earlier than it should, but now the first hot batteries, long barely warm, does not reach them. It works on the temperature of the return, no room thermostat.
ERA error can be eliminated by setting the fan step to 5. What the unit is quickly turned off, it means that its minimum power is too high for your system. It is less than 8 kW can not give. And you probably 5 radiators in the system. Here it heats this water and turns off. And why he heats them so fast so quickly, the following faults are possible: the first radiators have been clogged or balancing, and the first radiators should not be balanced so that the entire flow is not only through them. Here you have to watch the scheme of radiators and so on. Try to set the pump speed per maximum (value 3) and post-air in radiators.
Tell me who knows about: Wall-mounted gas boiler WBN 6000-18c Rn. What production tests produce? Do they launch them?
I was fine, I didn't think it was from the factory so, most likely storage was strange.
Tell me: Stopped a wall mounted boiler Bosch, the pressure of up to 3 bar rose, issued an E9R error. I tried to restart earned, after 10 seconds. Jumping pressure to the maximum, I stopped everything, turned off, the pressure was lowered. Checked the gas pressure is normal, as it was. What could it be?
If the system is new, then a small expansion tank, if the old one is faulty than the expansion tank, and can feed the fuel. In your case malfunction expansion tank The most likely. If this is a single option 2: swing up pressure, replace the tank.
After opening the hot water crane and the ignition of the burner boiler Bosch gives an E2 error (the flow temperature sensor is defective). This happens for 10-15 seconds. After closing the crane, the error is removed itself, and the boiler continues to work in heating mode. If the crane is open again, the situation is repeated. For completeness of the picture: Additional is installed in the heating circuit circulation pump, before installing it
The boiler and in heating mode showed an E2 error for a couple of seconds, and then changed to E9 (he worked the heat exchanger temperature limiter). Source of water supply borehole pump (Pressure on the supply of water from 2 to 3x without sharp jumps).
Possible reasons Such: defective own circulation pump (if it is only involved with gVS mode), clogged the mesh filter. The sensor, probably, should not be excluded.
ZWA 24 boiler. The concept has been changed, a heat exchanger from ZSA, a boiler sensor and a three-way valve. Fee, I think so they have the same. In general, one of the two-kingnoe needs to be made one-concert.
The manufacturer does not recommend engaging alterations. But if there is a desire, then you need to purchase a heat exchanger. The feed tubes are the same, and the graduation different. On the 2nd contour there is a hole under the feed, and there is no 1-contour. There are 2 options. Change the tube. Come up with how to drown a hole. Control boards are the same.
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2017-04-29 Evgeny Fomenko
The most popular models among the Bosch boilers are two-circuit. There are two tasks in front of them: the first is the heating of the room to a given temperature, the second is to ensure hot water For household needs.
Bosch's devices, namely, Bosch Gas 4000 W and Junckers Bosch are equipped with two independent heat exchangers, which allows them to perfectly perform two tasks: heated water and ensuring heat in the room.
In each of the models, there is an opportunity to choose a suitable device power from 12 to 35 kW, when choosing a room is taken into account. As for heating fluid for economic needs, the performance is about 8-13 liters per minute.
Pluses of wall mounted double-circuit boiler:
Boiler can be mounted in the kitchen wall Disadvantages:
Let us consider in more detail how the device works, on the example of the model Bosch gas 4000 W ZWA 24. When the boiler works in heating mode, using gas burner heat is transferred to the primary heat exchanger, which is a design from copper tubes and plates.
So that they do not spoil from exposure high temperatures and water, their surface is covered with a protective layer. The main task is to transfer heat formed during flame burning to the heating system. Water movement in the system provides a pump.
Also in the design there is a three-way valve, its task is to prevent water from entering the secondary heat exchanger. The secondary heat exchanger is necessary for water heating for household needs. The heating loop of the heating circuit comes out of the device through the feed heating line, and the cooled fluid flows through the reverse heating line.
When the boiler is installed on water heating for consumption, the 3-way valve closes the heating circuit. The heated liquid flows from the primary heat exchanger into the secondary, and then flows from the device.
Three-way valve Bosch boiler
Plus, when using different heat exchangers is obvious. The heating often uses simple water, and it usually contains impurities. When her heating occurs, impurities begin to form deposits, which negatively affect the heat exchanger, reduce its throughput, prevent the warming of water, reduce its service life.
And when the fluid that proceeds through the primary heat exchanger, it is in a closed chain, does not change its chemical properties, minimizes negative consequences.
The liquid that proceeds through the secondary heat exchanger, with time it raids, and after time the heat exchanger will need to be replaced or cleaning. If the malfunction falls on winterYour boiler will be able to work smoothly in heating mode using the primary radiator.
Like any device, the gas boiler Bosch also sometimes fails and needs to be repaired, let's consider its possible malfunctions in more detail and eliminate them.
Error 11 is possible in the BOSH bwc 42 device, deciphered, just as E9 error, signals the mechanization of the flue gas temperature limiter.
Flue gas temperature limiter
You must do the following:
Error 23 is not an error, this code appears during tights and indicates the type of natural gas used
Error 50 appears on Bosch ZWA 24 models in the absence of flame.
Boiler Bosch ZWA 24
How to fix it:
Error 70 means a differential relay fault during ignition.
Causes and ways to eliminate it:
The error A2 appears when the exhaust flue gases are released on the combustion chamber, it says to clog the heat exchanger soot and Garoy. To eliminate, clean the heat exchanger.
Cleaning heat exchanger with compressed air
ERROR E2 - faulty temperature sensor for the feed line. Contact the sensor for short circuit or cliff, view the connecting wires to the chain violation or oxidation. Clean or connect the wires, in the event of a sensor fault, replace the new one.
E9 error means managing the temperature limiter.
The reasons for the appearance and methods of elimination can be the following:
ERA ERA flashes the absence of flame in the on state.
When this code appears, check:
Error ER (EP) appears in case of incorrect operation of the boiler when faults appear in any of the instrument blocks.
The C3 error appears on the Bosch ZWE boiler in case of exhaust gases on the combustion chamber. You can eliminate this problem by clearing the heat exchanger in accordance with the instructions in the instructions.
With a closed state of a differential pressure relay, an C4 error appears when the fan is turned off.
Differential relay
When this code appears, you can do the following:
The C6 error means that the differential relay does not turn on when the fan is turned on.
What to do when this code appears:
CE error is a fairly repeated code in Bosch Gazh Gaz (Bosch Gaz) 6000 24 kW and means insufficient pressure In the heating circuit.
Boiler Bosch Gas 6000 24 kW
The lack of water in the circuit is determined by the pressure gauge:
Error F0 means an internal malfunction. When it appears it is necessary to check the reliability of connecting terminals and wires to the electronic board. If the wires are not oxidized, the connections are not broken, then this is a fault of the board itself, it should be replaced.
FD error appears if the button has been pressed for more than 30 seconds. To reset this code, press and hold the button less than this time.
Error SE gives a signal of insufficient filling of the heating system.
Heat exchanger with scale and after cleaning
What should be done:
Above the most frequent error codes were given, let's consider other possible malfunctions.
Sometimes there are such problems:
This article contains all the likely malfunctions and options for eliminating, as well as error codes for Bosch boilers (BOSCH). All information is read as follows: Code - Name - possible malfunction. If you have any additional questions, please leave them in the comments to this article.
If you are 100% sure what exactly the problem is and in the fact that you can decide to decide - immediately contact service center To diagnose and troubleshoot a malfunction.
Check the price and buy heating equipment And you can have accompanying goods. Write, call and come to one of the shops in your city. Delivery throughout the Russian Federation and CIS countries.
The list below shows a malfunction specifically for boilers Bosch GAZ 6000 series. Define the error code and troubleshoot the problems in a timely manner.
Check the boiler sensor and connection wires.
Verify DIF. pressure switch.
Check the fan, wire and plug. If required, replace.
Water topping.
Check the sensor for the presence of a defect, as well as a possible short circuit of its wire. If required, replace.
Although the boiler is disabled, the flame is determined.
After turning off the gas supply, a flame was detected.
Set the type of boiler.
The following is a list of faults specifically for boilers Bosch series ZSC / ZWC 24 MFA. Determine the error code and troubleshoot the problem in a timely manner.
Check the presence of damage or short circuit of the temperature sensor and its wires, replace if necessary.
Check the connecting cable and regulators.
Check the mounting zone, if necessary, dismantle the sensor and re-install it using a heat-conducting paste.
Check the boiler sensor and connecting cable.
Properly insert the encoding plug, measure it and replace it if necessary.
Check the differential pressure relay, exhaust device and connecting pipes.
Check the differential pressure relay.
Check the differential pressure relay and flue gas removal pipes.
If there are jumpers, insert the plug correctly, check the external limiter. In another case: Is there a jumper?
Check the pump, bypass hose and pressure in the system.
Check the temperature sensor and connecting cable.
Check the pressure in the system, temperature sensors, check the operation of the pumps and the fuse on the electronic board, remove the air from the instrument.
Gas crane is open? Check the pressure in the gas network, a network connection, a start-up electrode with a cable and an ionization electrode with a cable.
Check the strength of connecting electrical plug contacts and starting lines, if necessary, replace the electronic board.
Check electrodes and cable. If the flue gas is running, check the electronic board to humidity.
Check the ionization electrode. Check gas fittings.
Click on the button again less than 30 seconds.
Check the outdoor temperature sensor and connecting cable for damage.
Problem: "On the new boiler BOSCH WBN 6000-24C an EA error appears - the flame is not detected. The more degrees are exhibited, the less the error. But at low temperatures, it gives an error almost every day. Before the error occurs, the flame icon disappears. What to do?"
In 90% of cases, the problem is in the board. The best just contact the service center. There will be able to provide high-quality assistance: make diagnostics and repair the boiler.
I hope the article " Gas boiler WBN BOSCH 6000-24C Error EA"It was useful to you.
