Baxi boiler error E01 (baxi e01). Flame control principle.

Almost all modern household gas boilers are controlled electronically. The boiler control board is designed primarily to ensure its correct operation. If problems or malfunctions occur, the automation also informs the user of the cause of the failure in the form of an error on the screen. Error codes and the probable causes of their occurrence are usually described in the gas boiler operating manual, and in this article we will look at the most common reasons for the appearance of Baxi boiler error E01

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Attention! Before taking independent steps to troubleshoot your gas boiler, carefully study the operating instructions and manufacturer’s recommendations, or better yet, contact a specialist.

Error e01 is classified as critical, in which the boiler cannot continue to operate until the cause of the problem is eliminated, so it must be reset! Resetting the error in baxi boilers is done by pressing and holding the R button for 2-3 seconds. After resetting the error, the boiler should attempt to start in normal mode.

Boiler baxi mainfour 240f error e01 does not see flame

The baxi mainfour 240f baxi boiler is a single-circuit boiler with one fourth-generation bithermal heat exchanger from a well-known brand; it is usually distinguished from the similar baxi 24 by a white display panel. The letter F in the name means that the model is equipped with a fan for forced removal of combustion products. The principle and functional diagram of ignition of this boiler is no different from other boilers, and if the Baxi Main For 24 boiler produces error e01, you must follow the general recommendations that we describe in this article below or by watching the first two minutes of a video from one of the service organizations (exactly about the reasons errors e01 baxi mine for 24).

E2

This error, which in some models is marked as e02, indicates overheating of the coolant, which creates a reverse temperature difference in the system and, in turn, overheats the boiler itself, causing an emergency shutdown.

The reasons may be:

• Airiness of heating radiators - the heating system is sealed, but during operation air may enter, which is released from the water. It warms up faster than water, so the radiators will boil at relatively low boiler temperatures.
• Lack of the required water level in the system - if the water supply tap is closed or in the expansion tank, where water should be filled independently, the level has dropped sharply.
• Decrease in pressure on the boiler - if the mark drops to 1 bar, then you need to check the tightness of the system itself. There may be a leak in some radiators or at the joints, which is why the pressure is not maintained at the desired level.

• Thermostat malfunction - sudden voltage surges can lead to its inadequate operation. The sensor may need to be replaced with a new one.
• The pump does not work - there are two possible reasons: either there is no electricity, or the pump is set to the minimum operating mode. If it is used incorrectly, the device fails, as a result of which water stops circulating in the system, and is heated exclusively in the boiler, causing it to overheat and emergency shutdown.

In Electrolux boilers, problems with the pump occur quite often, or rather with the stator. In some models it cannot be repaired, so a complete replacement will be required.

You can resolve this error in the following ways:

1. Check the airiness of the batteries by slightly opening the drain nuts on each - some of the water with oxygen bubbles should come out. The procedure should be performed only with the pump turned on, otherwise it will simply be ineffective.
2. Add water to the expansion tank if its level is below the required level. Open the water supply valve when automatically recharging the system.
3. Check radiators and joints for leaks if pressure in the system constantly drops.

Expert opinion

Grebnev Vadim Savelievich

Heating system installer

As for assessing the quality of the pump and thermostat, it is better to entrust everything to specialists in gas equipment. It is not recommended to interfere with the operation of the boiler yourself, since the consequences can be very unpredictable.

BAXI eco four 24 f error e01

Ecofor 24 is a series of double-circuit turbocharged boilers with a closed combustion chamber. They differ fundamentally from the Baxi Main For by the presence of a second plate heat exchanger for preparing hot water. One of the reasons for boiler ignition errors may be the electronic board, but for diagnostics it is advisable to contact specialists in order to exclude all other options for the occurrence of error e01 baxi eco four 24 f. This is due to the fact that the ignition module of these boilers is located directly on the board and the average user is unlikely to be able to figure it out on their own. It is also worth noting that the boards of the Main For and Eco For boilers themselves are interchangeable and are customized for a specific model by setting specific parameters in the configuration mode.

E4

This error code indicates a sharp decrease in pressure in the circuit. May also be designated 04.

Occurs for the following reasons:

1. Water from the circuit has gone into the water supply system - this is appropriate if the make-up tap is not closed and the water in the general water supply has been turned off.
2. Contamination of the heat exchanger with scale occurs when using tap water saturated with oxygen, as well as when operating the boiler at maximum temperatures. The preceding factor is the lack of annual preventive cleaning, which completely dissolves scale on the heat exchanger.
3. Depressurization of the heating system - leaks in radiators or at joints.

When error E4 appears, it is necessary to check the presence of the required water level in the system, fill the deficiency if necessary, and also look for a leak. If all this does not help, then you should call the experts. The cause may be a faulty pressure gauge or a problem with the board.

Why does the Baxi boiler give error E01?

In most cases, this error indicates that the boiler burner has not ignited (the signal is supplied from the flame control sensor or also called the flame ionization sensor). The sensor is an electrode for determining the presence of a flame and blocks the operation of the gas boiler in the event of incomplete combustion of the main burner or gas supply interruptions.

• Insufficient pressure or lack of gas supply to the system (for example, gas valve malfunction)
• Incorrect connection of the boiler power supply for phase-dependent models
• Poor contact or no signal from the flame ionization sensor
• Malfunction of the flame control sensor (contamination, breakdown)
• Failure of the control board
• Lack of air for proper combustion (lack of draft, clogged inlet pipe)

The boiler is blocked after three unsuccessful attempts to start; to restore operation, you must hold the “R” button for at least 2 seconds (using the example of a BAXI boiler of the eco four or main four series).
Check some reasons for the baccy error e01

you can do it yourself, for example, the presence of contact with the sensor, the state of its contamination and air access, but if the error occurs again, it is better to contact a service organization or service center. Let's look at this issue in more detail.

Reason one. Gas supply failure

This problem can only be corrected by the warranty center; under no circumstances will this be done by the tank owner himself. For correct diagnosis, you will need a tool - a differential pressure gauge, which you can’t just buy anywhere. It helps measure the pressure at the inlet and outlet of the valve supplying gas. If a problem is identified with it, the service will make an adjustment, and the tank will be returned to the owner.

Attention! If you suspect a poor gas supply or no gas in the tank at all, under no circumstances should you climb into the tank yourself! You need to call a specialist urgently!

Error E01. Incorrect boiler power supply connection

In BAXI boilers, according to the operating instructions, it is required to observe the polarity of the phase and zero connections, and if the boiler is connected incorrectly, the user will also receive an E01 error. This can be checked either at the corresponding connectors on the board, or simply by turning the connection plug over in the socket. The second is usually the easiest to do.

An important point is grounding the boiler. All metal parts of the boiler must be reliably grounded according to the PUE standards! Improper grounding is often the cause of problems with electronics.

Where to begin

Step 1.

REZET (or R) button. You need to press and hold it for at least 3 seconds: the boiler should start.

Step 2.

The electronics of some gas Baxi models (for example, the Main For, Main 24 Fi series and a number of others) are phase dependent . When connecting, it is enough to swap wires L and N , and an error will appear on the display. In order not to waste time studying the features of the electrical circuit of your boiler, you should remove the plug from the socket, turn it 180 0 and insert it again (or swap the phase and neutral cores of the power cable).

Remove the plug from the socket, turn it 180 degrees and insert it back.

Electrical circuit for protecting a gas boiler

If the measures taken do not help restore the functionality of Baksi, you need to understand in detail the reasons for the equipment failure.

Flame control sensor fault (baxi e01)

In general, some manufacturers claim that the “igniter” is a consumable item. Personally, I have a baxi eco four boiler in my apartment and I have never changed it (the boiler is already six years old). But nevertheless, everything depends on the specific operating conditions, gas quality and air pollution. Therefore, you need to carry out an inspection, if necessary, clean the electrode with an alcohol solution and check its correct position and gap relative to the burner body according to the instructions (this may be different for different models). Case from practice: a client complains about the Baxi boiler error E01. We changed the board - the boiler worked for a day and again the same error. What did you do with the boiler before the error appeared? We bent the electrode and made a gap of 1 mm. On what basis? Somewhere someone told, showed...

In Baxi boilers, the ignition electrode also performs the function of flame control. Flame control is one of the most important functions of the boiler safety system. It is needed so that the boiler immediately shuts off the gas supply if the flame on the burner goes out for some reason. The gap must be set exactly as specified in the operating manual for the device!

The fact is that the principle of flame control is to register a small current that begins to flow through the electrode during combustion. And the flame structure has an air gap at the base, and if the gap is too small, the flame will not be registered and the boiler will fail when operating at certain power modes.

We do not recommend bending the electrode under any circumstances - it is very fragile and will most likely break off.

As an option, carefully bend the attachment point.

Reason seven. Insufficient air required for heating element

The most unlikely of reasons, but it also occurs. It is unlikely because the lack of air will be detected by other devices that are responsible for this, and the error code will be completely different. A situation may also arise that the pressure switch (another element of the tank) will not respond to the lack of air, and there will still be very little of it (if the pipeline is clogged). At this moment, the flame control electrode will detect the absence of this same flame and stop the boiler. Although it will be present inside the tank, it will have an irregular shape.

BAXI error e01. Control board fault

As a rule, if the above checks have been performed and do not reveal a problem, then diagnostics and repair of the boiler board will be required. In the case of Baxi boilers, the ignition unit and modules responsible for modulating the flame are located on the board itself, so their breakdown can lead to error E01. Diagnostics of the control board can only be carried out by a qualified specialist.

You can also watch a short video that shows in detail and clearly the checks discussed.

If you still think that the cause of error 01e

is a breakdown of the electronic board - contact us, we have everything you need to diagnose and repair the boards of BAXI gas boilers: specialist, experience, spare parts, equipment for professional installation. It is possible to deliver boards to other regions of Russia and organize repairs by agreement.

Instructions for many BAXI boiler models are also available for download on our website.

If you are interested, we have posted an article on our website with a complete list of error codes for Baxi boilers.

Preventive recommendations

Modern gas boilers are very practical and well-thought-out units; they have absorbed the best experience of past decades combined with the latest developments in the field of boiler materials, automatic control and protection. They are made in blocks, with the ability to replace worn parts and assemblies.

Units that are operated according to the manufacturer’s operating schedules are able to operate for decades without emergency stops or replacement of components.

The weakest components of the Proterm boilers and Buderus boilers:

1. Heat exchanger - serves to transfer heat from flue gases through a developed pipe surface to the water of the heating circuit: heating and hot water. The duration of its operation largely depends on the quality of tap water and the presence of hardness salts and suspended impurities in it, as well as on the temperature conditions in the network. At temperatures above 70 C, hardness salts are intensively deposited on the walls of pipes on the water side, gradually clogging the flow area. Low circulation causes overheating of water and pipe walls, on the surface of which fistulas form due to excessive overheating. At the slightest suspicion of the presence of scale in the pipes, chemical cleaning of the internal surface of the heater is carried out using the technology and reagents specified by the boiler manufacturer. In order to prevent scale formation, water purification filters are installed at the entrance to the boiler.
2. Circulation pumps. According to the new operating rules, the gas boiler operates using a closed heating system, which increases the efficiency of heating rooms and the ability to automatically control thermal conditions. Pump repairs are usually caused by damage to the mechanical and electrical parts of the structure.
3. The temperature sensor of the heating circuit produces a parameter that is the main one in the automatic mode control system, in connection with which the boiler is turned on/off; its malfunction may be in the contact group or caused by a break in the communication line.
4. A gas burner is the main device of a boiler, which burns fuel to produce thermal energy. Repairing this device involves cleaning the nozzles.
5. The expansion tank is a unit that compensates for the excess pressure of the medium that occurs during the heating process. Repair is carried out by replacing elastic membranes.

Most of the parts and components for repairing a boiler unit are available in the retail chain, they are also easy to find on the Internet, but if the boiler is under warranty, it is recommended to purchase them through service centers, which will guarantee not only high-quality repairs, but also its durability.

E9

The error code signals a critically low temperature of the coolant in the system, which is fraught with freezing. This happens when the boiler has not been used for a long time, and the temperature in the room drops to 0 degrees. In an apartment this error is less common than in private houses.

Expert opinion

Grebnev Vadim Savelievich

Heating system installer

If you need to leave, and you decide to turn off the heating, and it’s severely cold outside, it makes sense to drain the water from the system. It’s easier to ask someone you know to look after the house than to then warm it up from scratch.

Main characteristics

Manufacturers of heating systems can offer a huge selection of different models for home and industrial premises. One of the best options is Baksi gas boilers. This equipment can be used both in country houses and in city apartments.

However, before installation, you need to make sure that the room meets the following criteria:

1. The size of the heated room must be at least 15 m³.
2. The ceiling height is at least 2.2 meters.
3. Good ventilation is a must.

In this video you will learn the reasons for errors in the Baksi boiler:

When operating Baxi equipment with a closed combustion chamber, these rules can be ignored. Such a system includes all the necessary elements and does not pose any harm to the environment. The model range of this manufacturer differs in terms of power, thanks to which the devices can be used for heating and supplying hot water in various types of premises.

The following Baxi boiler models are very popular: Main 5, Main Four 24 F, Luna 3. These units have many positive reviews and have a good price-quality ratio compared to systems from other manufacturers (for example, Alpha Color).

Installation Features

Baksi equipment uses gas as fuel, which, despite all its advantages, is dangerous. Installing such a heating system requires a professional approach. Even the slightest mistake can lead to very unpleasant consequences, so installation of equipment should only be carried out by qualified specialists.

Such boilers should be repaired by professionals, as serious problems may arise.

Here is just a small list of problems that may arise with the intervention of a non-professional:

1. Carbon monoxide entering the airspace of the home.
2. The occurrence of an explosion.
3. Fire.
4. Freezing of the system in winter.

If we consider less serious consequences, independent installation of the boiler can lead to improper functioning of the equipment. The device may not start and display an error.

The units of this manufacturer are volatile. They are unable to function without a source of electricity. The connection rules are quite simple. The device is connected to a 220 V network; grounding is required. For this procedure, it is best to also turn to professionals.

https://youtube.com/watch?v=nM50Ttfn-BU

Important nuances

In addition to grounding, other factors must be taken into account when installing equipment. The following must be taken into account:

1. For the boiler to function properly, 170-250 V is required. At a lower voltage, the device will turn off, and at a higher voltage, the varistor will burn out.
2. The equipment is very sensitive to voltage surges. Professionals advise installing additional voltage stabilizing devices. There is no need to use a UPS when installing gas boilers.
3. The connection must be made through a separate functionality.
4. For phase-dependent varieties, the correspondence between phase and zero must be observed.

Sufficient power must be supplied for the boiler to function properly

Circulation pump

Haier gas boilers have a circulation pump, which has air release valves and electric speed controllers. Due to the importance of ensuring optimum flow, it is recommended that electrical speed control devices specified by the manufacturer be installed at the manufacturer's site prior to delivery to the user.

If there is a long break in the operation of the circulation pump, its blades may become clogged, in this case, use a Phillips screwdriver to unscrew the sealing bolts on the front cover of the pump, rotate the rotor with a screwdriver and then tighten the bolts again. When doing this, be extremely careful not to damage the circulation pump; place a tray under it to prevent damage to the power supply system due to water leakage from the pump.

Automation

Automation for boiler equipment is very diverse. Some of it is preinstalled by the manufacturer. This category includes all sensors and electronic devices that ensure the safe operation of equipment.

The simplest example is a sensor that monitors the normal gas supply. When the gas is turned off, the sensor is triggered and the boiler automatically turns off. Restart will occur after the gas supply is restored.

Systems that ensure operational safety also include:

Boiler structure

• Frost protection (starts to work if the outside temperature is below 5 degrees).
• Protection against blocking of circulation pumping equipment.
• Protection against blocking of the three-way mixing valve in case of long-term equipment downtime.
• Protection against scale formation in the heat exchanger and boiler.
• Overheat protection.
• Voltage protection in the electrical network.
• Control of stray flames.
• Combustion and draft control.
• Coolant pressure control.

In addition to the pre-installed automatic systems, you can install additional electronics:

• Outdoor temperature sensor.
• Room temperature sensor.
• Thermostat.
• Electronic thermostat.
• Remote panels.
• Weather dependent sensors.
• Elements for remote control.
• Water quality sensors, etc.

A little more about electricity

In addition to the need for grounding, there are other nuances when connecting boilers:

Baxi luna 3 comfort 240 fi

• Gas boiler equipment ensures stable operation in the range of 170-250 V. When the voltage drops, the boiler turns off, and when the voltage rises, the varistor burns out.
• The sinusoid in the power supply must be free of interference. Such devices do not tolerate power surges well. Experts recommend connecting additional voltage stabilizers. You should not use UPS for installation of gas heating appliances.
• The connection must have a separate machine.
• For phase-dependent models, it is important to ensure that zero and phase match.

I01

This error can appear either independently or in combination with errors E5 and E6. Indicates contamination of the coolant, which is causing the heater to suffer. The problem is solved by dismantling and cleaning it using special means.

Some models have the ability to pour a cleaner into the system and drain it after a certain time. All manipulations are performed only by a specialist. Dismantling without skill and experience is strictly prohibited.

Decoding

Error e12 on the baxi control panel

The user manual does not give an unambiguous interpretation of error 12, indicating incorrect functioning of the differential pressure switch of the heating circuit. In the fault table of the instructions for the Baksi boiler, the 12th code says: the electronic board does not receive a signal from the sensor. This happens in the absence or drop in the rate of fluid circulation in the heating circuit, when the measuring device (position 15 in the diagram) does not respond to the flow of coolant - it gives permission to turn on the burner at a pressure above 0.5 bar.

Error 12 is not necessarily caused by a fault in the Baxi boiler. As practice shows, it is initiated mainly by external factors as a result of illiterate operation and maintenance of the heating unit and components of the heating system, and failure to comply with the deadlines for carrying out routine activities. The movement of the coolant slows down for several reasons, and to reduce the time spent searching for a problem, it is recommended to perform a series of actions according to the principle “from simple to complex.”

The user is informed about a malfunction of the hydraulic sensor (pressostat) itself by another error - E13. Therefore, it is not advisable to start searching for the reason for the appearance of code 12 from the Baksi boiler.

Check what

Signal line status

An open circuit, melted conductor insulation, unreliable contact (or lack thereof) are the causes of error e27. The defect is detected visually after tilting the bottom panel of the Baxi boiler.

Baxi boiler control board at the bottom of the boiler

NTC mount

Unreliable contact with the pipe causes error e27. Typical for Baxi boilers with overhead measuring instruments when the clamps are loosened.

Ariston gas boiler temperature sensor

Temperature sensor performance

One option is to swap the NTC of the DHW and DHW circuits. In Baksi boilers, these devices (thermistors) are identical. The disappearance of the E27 fault code indicates the cause of the error.

Assessing the suitability of an immersion type NTC sensor begins with its removal and inspection. The coolant is first drained from the Baksi boiler. If the owner does not pay attention to the quality of water treatment, scale forms on the sensitive element of the device, the characteristics “float”, which causes error e27 to appear.

Baxi boiler temperature sensor

Testing is carried out with a multimeter (in resistance measurement mode, Ohm). R=0 – breakdown of the p/n junction of the semiconductor device, =∞ – internal break. The instructions for some Baksi boilers contain a graph of R versus t. If absent, you can compare with the values: at room temperature (25 C) the multimeter shows 10 Ohms, at 40 - 5. A significant deviation is the reason for rejecting the sensor. It’s easy to find and inexpensive (600±100 rubles depending on the region). After installing a working NTC, error e27 will be removed.

If the Baxi boiler has a surface-mounted temperature sensor, check the layer of special paste under the device holder. A decrease in heat transfer affects the temperature measurement, error e27 is displayed. Eliminated by applying fresh thermal paste.

Serviceability of the electronic board

An extreme case is if error E27 is not removed by the measures taken. Self-testing (without diagrams, guidelines from the Baksi manufacturer, special equipment, experience) is a futile task: for diagnostics you need a stand. If, after replacing the DHW sensor, code 27 continues to be displayed, contact the service center. His representative will replace the board and send the faulty one to the laboratory to check and eliminate the defect. Advantage of the solution: the Baksi boiler will not be idle, and the home will not be left without heating.

Electronics

The heart of the boiler is complex electronics. It is this that ensures the normal operation of the device and will turn it off in the event of a malfunction. The automation will report problems to the owner by displaying an error code. These alphanumeric codes are essentially a description of the problem. They talk about what is broken in the operation of the unit and how the situation can be corrected.

Before talking about the most common error codes, it is worth recalling that independent intervention and repair attempts are not the best solution. Correcting problems without the intervention of a specialist is permissible only within the limits limited by the manufacturer’s instructions.