Faults and error codes of Electrolux boilers: typical and atypical, ways of elimination

Boilers are essential to maintaining a warm and comfortable home environment. Because of their reputation for dependability and efficiency, Electrolux boilers are a popular option for many homes. But just like any other appliance, they occasionally experience malfunctions and error codes, which can be inconvenient and possibly interfere with our daily schedules.

Homeowners must comprehend these defects and error codes in order to minimize downtime and troubleshoot problems efficiently. This article will discuss common and uncommon problems and error codes that can arise with Electrolux boilers. We’ll cover the range of possible problems you might run into, from everyday ones like low pressure to more unusual ones.

The dreaded error code display is one of the most frequent problems that owners of Electrolux boilers encounter. These codes, which are frequently shown as alphanumeric combinations, represent particular problems with the boiler system. From malfunctioning sensors to ignition problems, each code indicates a specific issue that requires attention. Homeowners who are familiar with these codes can identify problems fast and take the necessary action.

Some errors and fault codes can be fixed easily, but others might need more involved troubleshooting and expert assistance. For instance, low water pressure is a frequent problem that is frequently resolved by simply adding more water to the system. But more complicated problems, like broken parts or malfunctioning systems, might call for a trained technician’s skills.

Fortunately, there are simple fixes for a lot of issues and error codes related to Electrolux boilers. Frequent maintenance can help avoid common problems by doing things like checking for leaks and cleaning filters. Additionally, homeowners can feel more confident in their ability to handle minor issues by becoming familiar with the boiler’s user manual and comprehending its error code system.

Fault/Error Code Elimination
Typical: Error E10 – No ignition Check gas supply, ensure pilot light is lit, clean ignition electrode
Typical: Error E20 – Overheating Check for blocked vents, clean air filters, ensure proper ventilation
Atypical: Error E30 – Flue gas sensor fault Inspect sensor wiring, replace sensor if damaged, reset system
Atypical: Error E40 – Water pressure sensor fault Check water pressure, inspect sensor connections, replace sensor if necessary

The most common errors, their manifestations and methods of elimination

The first issues may arise in three to four years if the boiler has not received the long-term maintenance that the manufacturer recommends. Power spikes in the network and chimney clogs that hinder the removal of combustion products worsen the situation.

Knowing the problems and error codes associated with Electrolux boilers is essential when it comes to home insulation and heating. This article explores the typical problems homeowners encounter with their Electrolux boilers and offers workable solutions for troubleshooting, ranging from the more common to the less common. Knowing how to spot and fix these issues can help you save time and money, whether the problem is as simple as resetting the boiler or more complicated and calls for expert help. Homeowners can guarantee their heating systems run smoothly and effectively, keeping their houses warm and cozy all year long, by becoming knowledgeable about these error codes and how to fix them.


Depending on the boiler model, this error may appear differently on 01, e01, or E1.

Regardless, the following are the root of the issue:

  • No gas supply to the boiler or insufficient gas level to support the combustion process in the boiler.
  • Changing the angle of inclination of the electrode in the burner, which may be a factory defect or deliberate pushing it away when setting up the equipment during installation of the heating system.
  • The electrode is clogged with soot, which prevents it from working properly.
  • Lack of reliable contact between the electrode and the wire.
  • Gas valve malfunction.
  • Problems in the central control board, which inadequately evaluates the processes and provokes an emergency shutdown of the boiler.

One way that these issues may show up is a spontaneous boiler fade-out. Having trouble starting, the boiler will extinguish as soon as a flame appears.

If a broken part is the cause, it may be challenging to solve the issue on your own. When using gas equipment, the operator should make sure that gas is present in the system and that the boiler is receiving it (that is, that the valve is not blocked). Next, push the "Reset" button to verify that the boiler is operating properly. Specialists will handle the remaining diagnostics and repairs.

Avoid restarting the boiler repeatedly in an attempt to clear the error code. It might be helpful at first, but the issue won’t get better. Always seek professional advice and perform an ad hoc diagnostic test.


This error, which appears as an e02 on some models, is a result of the coolant overheating. This overheating causes a reverse temperature differential in the system, which in turn overheats the boiler and triggers an emergency shutdown.

Possible causes include:

  • Blowing out of the heating radiators – the heating system is airtight, but during operation air can get in, which is released from the water. It heats up faster than water, respectively radiators will boil at relatively low values on the boiler.
  • Lack of proper water level in the system – if the water supply tap is closed or in the expansion tank, where the water should be poured independently, the level has dropped sharply.
  • Pressure drop on the boiler – If the level drops to 1 bar, the system itself must be checked for leaks. There may be a leak in some of the radiators or joints, causing the pressure to not hold at the correct level.
  • Thermostat malfunction – sudden voltage spikes can lead to its inadequate operation. It may be necessary to replace the sensor with a new one.
  • Pump does not work – there are two possible causes: either there is no electricity or the pump is set to minimum operation mode. If it is used incorrectly, the device malfunctions, because of which the water stops circulating in the system, and is heated exclusively in the boiler, causing its overheating and emergency shutdown.

Pump issues, more especially stator issues, are fairly common in Electrolux boilers. It will need to be completely replaced in certain models because it cannot be fixed.

The following methods can be used to remove this error:

  1. Check if the radiators are leaking by opening the drain nuts on each radiator – some of the water with oxygen bubbles should come out. The procedure should be performed only when the pump is on, otherwise it will simply be ineffective.
  2. Fill up the water in the expansion tank if its level is below the required level. Opening of the water supply valve during automatic system make-up.
  3. Check radiators and joints for leaks if the system pressure is constantly dropping.

It is advisable to leave everything in the hands of gas experts when evaluating the pump and thermostat. It is not advisable to tamper with the boiler’s operation on your own because the results might be highly unpredictable.


This error, which appears on all boilers with the same label, denotes issues with the smoke exhaust when the flue gas is not released outside as it should and either stays in the combustion chamber or seeps into the adjacent space.

This is due to a few factors:

  • Blockage in the chimney – This can be caused by residues of carbon monoxide and soot, and in winter by ice and icicles. It is necessary to look into the chimney and check the draught level. If it is weak, it is necessary to call a furnace technician, who will clean the ventilation channel.
  • Failure of the gas control sensor – gives a false signal, which blocks the operation of the whole boiler.
  • The supply draught in the room is disturbed – when windows and doors are tightly closed and there is no ventilation duct in the room itself. Often occurs in apartments where the chimney is clogged.
  • Problems with the electronic board – Rarely, but it happens that this error appears for no apparent reason, when the light was abruptly turned off and then turned it on. The automation is experiencing an increased load that it cannot cope with.

It’s essential to solve the issue:

  1. Check the draught in the chimney by putting a burning match to the hood. If the flame does not move, there is a clog and it needs to be cleaned out.
  2. Open a window or door to the room and try to restart the boiler.
  3. Call the masters, if nothing helps, so that they carry out a comprehensive diagnosis and eliminate the identified cause.

It is important to remove any ice that may be inside the chimney (parapet boilers) carefully. If this is the result of the boiler being left unattended for an extended period of time, it is started at the lowest speed and then slowly warmed up.


A significant drop in circuit pressure is indicated by the error’s code. It might also suggest 04.

Occurs for the reasons listed below:

  1. Water from the circuit has gone into the water supply – is appropriate if the make-up tap is not closed and the water in the common water supply has been turned off.
  2. Contamination of the heat exchanger with limescale – Happens 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 the scale on the heat exchanger.
  3. Leakage of the heating system – Leakage in radiators or at joints.

When error E4 arises, the system must be checked for leaks, the required water level must be present, and any necessary adjustments must be made. If none of this was helpful, you ought to give the masters a call. This might be the result of a circuit board issue or a malfunctioning pressure gauge.


Occurs when the pressure gauge experiences a sharp rise in values, approaching critical levels.

The following could be the causes:

  1. Faulty or inflated expansion tank – in those models where the expansion tank is mounted directly into the boiler itself.
  2. Clogging of the safety valve – when using poor quality water, as well as a large amount of scale and rust, which clog the small cells of the filter grid.
  3. Faulty pressure sensor – possibly short-circuited or open circuit.

This is not a problem that you can diagnose yourself. It is imperative to contact experts who can investigate and rule out any potential causes. Make sure to turn off the boiler and cut off the gas supply if the display indicates this error. Utilizing gas equipment that displays critical values in the heating system is exceedingly risky.


The error code alerts the user to the system’s coolant being dangerously low and susceptible to resizing. This occurs when the room temperature falls to zero degrees Celsius and the boiler is not used for an extended period of time. This mistake is less frequent in apartments than in homes.

It makes sense to empty the water from the system if you have to leave and decide to turn off the heating while there is a severe frost outside. Asking a friend to keep an eye on the house is simpler than having to rewarm it from scratch later.

Atypical error codes and their causes

High-quality boilers that are simple to use and maintain are produced by Electrolux. You have to work hard to get them out of order. However, some situations result in uncommon malfunctions. It is essential to be aware of them.


After operating a boiler for ten to twelve years, the hot water control sensor may malfunction. Compound oxide is typically the cause; you can either try cleaning the sensor or replace it entirely with a new one.

Error E6 can also be produced by the board itself. This occurs when there are network power fluctuations. Using the "Reset" button, you can attempt to reset the boiler. If none of this works, contact the professionals.


This error may occur alone or in conjunction with errors E5 and E6. shows that the coolant is contaminated, which is the cause of the heater’s problems. By disassembling it and using specialized tools for cleaning, the issue is resolved.

Certain models allow you to add cleaner to the system and then drain it after a set amount of time. Only a specialist performs all manipulations. Dismantling without the necessary knowledge and expertise is strictly prohibited.


The thermostat isn’t working properly, which is the issue. It is frequently the result of a cable break, which is easily identified by "dialing" the entire length of the cable. Once more, only specialists are able to access this work. The only thing the user can do is unplug the devices and watch for the masters to signal the error code.

General tips and recommendations

Not every breakdown results in the appearance of error codes.

Make sure to look for things like these:

  1. Is the gas on (whether the supply valve is open) and is it in the system at all??
  2. Whether the water in the heating system is running and the water level is adequate? The standards are specified in the technical operation manual.
  3. Whether the flue is not blocked and whether the room where the boiler is located is ventilated?
  4. Is the pump functioning? Is there heating radiators after turning on the boiler?
  5. Whether the boiler is plugged in?

While this may sound absurd to some, user inattention accounts for one-third of all service calls.

There are two key guidelines that must be adhered to in order to lower the likelihood of a major breakdown:

  1. Every year to check the serviceability of the gas equipment and clean the water heating element from limescale.
  2. Call a specialist as soon as a fault appears or an error is displayed on the display.

This will protect your life from potential danger and spare the boiler from expensive repairs.

Questions and Answers

I occasionally notice the E2 error. When you force a reboot, everything vanishes. A few days later, everything proceeds according to the same plan. How should one proceed?

Since there are numerous reasons for coolant overheating and a blown heating system is not always the cause, it is best to contact experts in this situation.

As soon as I increase the boiler output, I frequently see the E2 error flashing on the boiler. What could it be connected to?

A blockage in the system is the most evident cause. Although this shouldn’t happen in theory, it can in reality. It is required to periodically empty a small amount of water from each radiator and replenish the expansion tank.

Demonstrates my ventilation issues, but I try to carry a match because the draught is unbearable. What is the reason behind it?

If your chimney was installed incorrectly or has a missing baffle, this error may also be a sign of a back draft. As there is always a chance that the board itself will malfunction, it is preferable to call a furnace technician and a master on gas equipment.

To sum up, it’s important to remember that Electrolux gas boilers have great qualities and can function even under the worst circumstances. Codes are used to identify malfunctions and breakdowns, indicating which parts need to be repaired. The boiler manual contains all of the intricacies unique to that specific model of boiler. The only people who perform repairs and maintenance are skilled craftsmen with the necessary authorization.

Maintaining a cozy and effective home heating system requires an understanding of Electrolux boiler problems and error codes. These problems, whether common or uncommon, can interfere with your boiler’s operation, causing inconvenience and possibly expensive repairs. Gaining knowledge about typical error codes and their fixes will help you troubleshoot issues more efficiently and save money.

The most common problems with Electrolux boilers are related to low water pressure, thermostat malfunctions, and ignition and flame detection issues. Most of the time, these errors are easy to identify and fix, either by making small adjustments or by calling in a professional technician for help. These problems can be kept from becoming more serious by giving them regular maintenance and timely attention.

But not every flaw follows the same patterns. A deeper comprehension of the boiler’s mechanics is necessary to diagnose more complex issues that may be indicated by atypical error codes. These could be anything from electrical problems to sensor malfunctions to software problems with the boiler. Even though these issues might present more difficulties, they are not insurmountable. Many atypical faults can still be resolved successfully with perseverance and cautious troubleshooting.

It’s critical to handle situations involving error codes or faults in your Electrolux boiler carefully. To find out the precise error code and its potential causes, start by consulting the manufacturer’s handbook or internet resources. Next, carry out any suggested troubleshooting actions, like restarting the boiler or inspecting the ventilation system for blockages.

It might be essential to seek professional assistance if these first steps are ineffective in solving the problem. Skilled technicians possess the knowledge and specialized tools necessary to accurately diagnose and fix more complicated issues. Even though there may be a cost involved, it is frequently a wise investment to guarantee the longevity and effectiveness of your heating system.

In conclusion, keeping a cozy and functional home environment requires an understanding of the issues and error codes associated with Electrolux boilers. You can solve problems quickly and efficiently if you are familiar with common problems and their fixes. A proactive approach to boiler maintenance and troubleshooting can help ensure long-term performance and peace of mind, whether dealing with typical faults or more atypical errors.

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Sergey Ivanov

I like to help people create comfort and comfort in their homes. I share my experience and knowledge in articles so that you can make the right choice of a heating and insulation system for your home.

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