Malfunctions and error codes of Electrolux boilers: typical and atypical, solutions -

The Electrolux line of boilers is characterized by relatively high performance equipment that can operate at low room temperatures. The main advantage of such boilers is their high efficiency.

The protection system fully monitors the health of all processes, blocking the gas supply in the presence of malfunctions. Despite many advantages, this gas equipment cannot constantly operate without breakdowns. All faults are displayed on the display in the form of a code, the description of which helps in finding and fixing the problem.

E1

On different boiler models, this error may be displayed differently: 01, e01, E1.

In any case, the problem lies in the following:

Lack of gas supply to the boiler or its insufficient level to maintain the combustion process in the boiler.
A change in the angle of inclination of the electrode in the burner, which may be a factory defect or intentionally moving it away when setting up the equipment during installation of the heating system.
The electrode is clogged with soot, which interferes with its normal operation.

Lack of reliable contact between the electrode and the wire.
Gas valve malfunction.
Problems in the central control board, which inadequately evaluates processes and provokes an emergency shutdown of the boiler.

These problems can manifest themselves in the form of spontaneous extinguishing of the boiler. There will be difficulties with ignition, the boiler will go out immediately after the flame appears.

It can be difficult to fix the problem yourself if the cause is broken parts. The user of gas equipment needs to check the presence of gas in the system, as well as its supply to the boiler (if the valve is closed). After this, press the “Reset” button and check the operation of the boiler. The rest of the diagnostics and repairs will be performed by specialists.

Do not try to clear the error code by constantly restarting the boiler. This may help at first, but the problem will not go away. Be sure to consult with specialists and conduct unscheduled diagnostics.

E 03

Electrolux boiler error E3

The error indicates that the smoke removal system is not operating correctly. Mainly due to a narrowing of the diameter of the canal or its blockage. This could be caused by foliage, or a bird caught in the pipe - checking the draft and cleaning it is not difficult.

Recommendation : the appearance of a code during the initial startup of the boiler is caused by errors in calculations (wrong length, diameter), an illiterate diagram or a violation of the chimney installation technology. The same thing applies if the code is displayed periodically when the wind direction changes. We will have to correct the mistakes made.

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:

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.
Add water to the expansion tank if its level is below the required level. Open the water supply valve when automatically recharging the system.
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.

Temperature sensor failures (F)

The sensors are usually semiconductor thermistors. Simple models of Electrolux air conditioners have two such elements; smart devices have more of them.

Temperature sensors - components that record indicators in certain places outside or inside the system and transmit information to the control unit

According to the data received, an adjustment is made: the motor-compressor works actively, moderately, or turns off, producing an error code.

The following temperature detection sensors are installed in the indoor unit:

Room air . Sets compressor operating parameters. Error F0 .
Evaporator (located at the midpoint of the element). Turns off the compressor if the evaporator temperature drops below zero to prevent icing of the latter. Code F2 .
At the inlet and outlet of the evaporator . They give errors F1 and F3 .
Fan motor . Turns off the engine in case of overheating to prevent fire.
Fuse in terminal block . It opens the power supply circuit of the device and burns out when it overheats more than 90 degrees.

The general rule for solving problems with temperature sensors is to find everything connected to them on the control board: no signal, open circuit, short circuit.

The external block contains temperature sensors:

Outside air . Limits the operation of the device if the outside temperature is below the permissible temperature according to the characteristics. The device displays error F4 and simply does not turn on.
Capacitor . There may be several such sensors in different places. The function of the element is to maintain pressure in the desired range under changing conditions outside.
Compressor discharge temperatures . With its help, pressure is indirectly determined. If it exceeds the norm, error F8 or F9 .
Gas main . Repeats the low pressure sensor.

The design of the air conditioner may have a different number of sensors (on the fan motor, connecting block, etc.), but the procedure for action when an error is issued is the same.

To understand whether the thermistor is working or not, you need to determine its resistance. The tools you will need are an ohmmeter or multimeter, as well as a room thermometer.

We take out the sensor, measure the resistance, read the readings, measure the room temperature and check the numbers with the documentation for the model under study. The average and most common value at an ambient temperature of 25 degrees is 10 kOhm

If it turns out that the sensor is faulty, you can install a permanent or trimming resistor in its place to temporarily restore the device’s functionality. In this case, the air conditioner will operate at maximum power, so it is worth expediting the replacement of the part with a working original one.

E3

This error is marked the same on all boilers and indicates problems with smoke removal, when the exhaust gas is not discharged outside as it should be, but remains in the combustion chamber or penetrates into the room.

There are several reasons for this:

A blockage in the chimney can be the remains of burning and soot, and in the winter season - ice and icicles. You need to look into the chimney and check the draft level. If it is weak, then you should call a stove technician who will clean the ventilation duct.
A malfunction of the gas control sensor gives a false signal that blocks the operation of the entire boiler.

The supply draft in the room is disrupted - when the 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 are less common, but it happens that this error appears for no apparent reason when the light is suddenly turned off and then turned on. The automation is under increased load, which it cannot cope with.

To fix the problem you need to:

Check the draft in the chimney by holding a burning match to the hood. If the flame does not move, then there is a blockage and you need to clean it.
Open a window or door to the room and try to restart the boiler.
Call the experts if all else fails, so that they can conduct a comprehensive diagnosis and eliminate the identified cause.

If there is ice inside the chimney (parapet boilers), it should be carefully removed. If this happened due to prolonged non-use of the boiler, then it is started at minimum speed, after which it is gradually warmed up.

Atypical values on the display

If, when you turn on the “Heating” , the device starts to work, but after a while the air stops blowing, the sun indicator blinks and the inscription H1 , this means the device has entered the defrost mode.

You need to turn off the device from the remote control, hold down X-FAN and MODE . After half an hour, the air conditioner should work at a normal rhythm.

Sometimes an incomprehensible code may appear on the display, the explanation of which is not in the instructions or on the manufacturer’s website. For example, a blinking sun and the value H7

In case of error H7, diagnostics of the control and display module of the device is required. Only a specialist can perform it.

H6 value stands for activation of the compressor blocking sensor. This happens in two cases: when the sensor itself is broken and needs to be replaced, or when the freon charge is insufficient.

Also, with such an error, it is possible that the power supply to the impeller of the indoor unit is incorrectly connected, which was not taken into account during assembly. Here you need to disassemble the board to clarify the cause and eliminate it.

E4

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

Occurs for the following reasons:

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.
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.
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.

E 02

Electrolux boiler error E2

The error indicates a sharp increase in temperature in the circuit (overheating). This happens when the rate of fluid circulation decreases or the channel is blocked. The Electrolux boiler is not always to blame - troubleshooting should begin with diagnosing the heating system.

Probable Causes

Recommendation : a good owner always has a backup heat source at hand (an alternative to a boiler). The optimal solution is to remove the heat exchange device and send it to a workshop: maintenance will take no more than 3 days. It’s better not to do it on your own, following advice from the Internet. The internal part of the product has a complex configuration, and we are not talking about a perfectly smooth surface. Just clean it and put it in Electrolux - delay the appearance of the error for two to three weeks. The technology of competent maintenance involves stage-by-stage processing of the heat exchanger: pouring a special reagent/holding (to soften deposits)/rinsing under pressure. Can't do it at home.

If the measures taken do not help eliminate the error, you need to change the thermostat of the extract air circuit. In all Electrolux boilers, its function is performed by a thermal resistance. A regular continuity check for a break does not give the true picture: the defect may be an interturn short circuit - only replacement.

E5

Occurs when the pressure on the pressure gauge rises rapidly and shows critically high levels.

The reasons may be the following:

Failure or airiness of the expansion tank - in those models where the expansion tank is mounted directly into the boiler itself.
The safety valve is clogged when using low-quality water, as well as a large amount of scale and rust, which clog the small cells of the filtration grid.
Pressure sensor malfunction - possible short circuit or break.

It is impossible to diagnose this problem yourself. You should call specialists who can check all possible causes and eliminate them. If this error is detected on the display, you must turn off the boiler and shut off the gas supply. Using gas equipment that displays critical values in a heating system is extremely dangerous.

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.

Prevention of errors in air conditioner operation

The quality of installation of the air conditioner greatly influences the duration and uninterrupted operation of its service. The services of professional craftsmen are relatively inexpensive, but pay for themselves several times over.

When installing Electrolux air conditioners, specialists must take into account a number of factors:

room area;
direction of the sun's rays;
size and location of windows;
number of people living;
availability and placement of other equipment.

It would be good if the company provided documentation with engineering design for a specific apartment, house, or room.

E6

Malfunction of the hot water control sensor, which happens after 10-12 years of operation of the boiler. The cause is usually oxide compounds, which you can either try to clean or completely replace the sensor with a new one.

The board itself can also give an E6 error. This happens when there is a power outage in the network. You can try to reboot the boiler using the “Reset” button. If this does not help, call the experts.

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.

General tips and tricks

Error codes do not always appear when there is a particular breakdown.

Be sure to check these points:

Is the gas turned on (is the supply valve open) and is there any gas in the system at all?
Is water supplied to the heating system and is its level sufficient? The standards are specified in the technical operation manual.
Is the chimney duct clogged and is there adequate ventilation in the room where the boiler is located?
Is the pump functioning? Do the heating radiators heat up after turning on the boiler?
Is the boiler plugged in?

For some, this seems funny, but a third of all calls to technicians occur precisely because of the user’s carelessness.

To reduce the risk of serious damage, you must follow 2 important rules:

Every year, monitor the serviceability of gas equipment and clean the water heating element from scale.
Call specialists immediately as soon as a malfunction appears or an error appears on the display.

This will protect the boiler from costly repairs, and your life from possible danger.

E 09

Electrolux boiler error E9

An error is generated by the anti-freeze system. Happens when the water in the pipes cools down (t 0 < +2).

Probable Causes

Recommendation : when installing an Electrolux boiler in an unheated room, raise the temperature with another heater. If, when the value reaches +5, the boiler does not start, call a specialist.

Questions and answers

Sometimes I see error E2 appear. I do a forced reboot and everything disappears. A few days later everything follows the same scenario. What to do?

In this case, it is better to call specialists, since there are many reasons for overheating of the coolant, and this is not necessarily airiness in the heating system.

I often see error E2 flashing on the boiler as soon as I increase the boiler power. With what it can be connected?

The most obvious reason lies in the airiness of the system. In theory this shouldn’t happen, but in practice this happens. You need to drain a little water from each radiator one by one and add a new portion to the expansion tank.

It shows that I have problems with ventilation, but I try to bring a match - the craving is crazy. What is the reason?

Such an error may also indicate the creation of reverse draft if your chimney is installed incorrectly or there is no deflector. It is better to call a stove-maker and a gas equipment specialist, as there is always a risk of malfunctions in the board itself.

In conclusion, it is worth noting that Electrolux gas boilers have excellent characteristics and cope with their work in the most unfavorable conditions. Breakdowns and malfunctions are marked with codes that indicate the need for repair of a particular part. The instruction manual contains all the explanations specific to a particular boiler model. Repairs and maintenance are carried out exclusively by specialists who have the appropriate permit.

Air filter cleaning rules

According to the manufacturer's recommendation, the air filter must be cleaned after 100 hours of equipment operation.

The procedure algorithm is simple:

Turn off the device. Open the front panel.
Carefully pull the filter lever towards you. Retrieving the element.
We wash the filter in warm water with a washing solution.
Dry the part in the shade, install it in place, and close the device.

If the front panel is also dirty, fix it in the upper position, pull it towards you, remove it, and wash it.

The use of gasoline, solvents, and abrasive cleaning products is prohibited.

Do not allow water to enter the internal unit of the device. There is a risk of electric shock. Therefore, the parts must be removed and washed separately from the block itself.