Electrolux gas boiler error e1

Design and principle of operation of Electrolux gas boilers

The range of gas boilers from Electrolux is impressive. Each model belongs to a single-circuit or double-circuit type of gas boiler. Moreover, for each, the installation of an open or closed combustion chamber is provided.

Advantages:

The presence of a weather-dependent ETS control system allows you to set a comfortable heating temperature based on weather conditions. It also protects equipment from freezing, overheating, and the influence of extreme weather conditions;
the ability to set the operating time of the system at the required time intervals, which helps save water and electricity;
reliable boiler protection system - shutdown in case of poor smoke removal, increased gas pollution, etc.
high performance during surges in the supply of water and electricity - efficiency 94%.

The best option for a home heating system is a double-circuit gas boiler. The versatility of the technology lies in the simultaneous heating of the entire area of the house and the uninterrupted supply of hot water to the water supply system. The Electrolux wall-mounted gas boiler is convenient for subsequent installation, since all the necessary heating water input and output pipes are located at the bottom of the housing.

The components of the hydraulic sector are a pressure switch, a three-way valve, a circulation pump, a relief valve, a secondary plate exchanger, and an expansion tank. The “insides” of the gas path are a working valve, a stainless steel injection burner, ignition and flame control electrodes, a steel firebox with waterproofing, a primary heat exchanger. The heat exchanger sensor protects the system from sudden overheating and boiling.

Additionally, the equipment is equipped with a fan to remove combustion waste and normalize pressure.

Let's check the elements of the control board

The reason for displaying error E02 may be a faulty control board. To repair a washing machine, you need to inspect the circuit board. The first step is to remove the part from the washer. This is done as follows:

de-energize the device;
pull out the detergent tray;
unscrew the 2 bolts located near the hole for the dispenser;
unscrew 4 more screws located on top of the machine (under the CM cover);
pull the control panel up and remove it;
use a slotted screwdriver to pry up the panel latches and disassemble the housing;
remove the board from the disassembled case.

Manipulate the control panel carefully so as not to damage or confuse the power supply wiring diagram.

If there are no visible defects on the board, it may be a hidden defect. You should check the triacs one by one for breakdown using a multimeter. The tester must be switched to ringing mode. The device screen will display the voltage value recorded between the elements.

To diagnose, attach multimeter probes to terminals A1 and A2. If the part is in good condition, the tester display will display the value “1” or “0L”; if a breakdown is detected, a number close to zero will be displayed.

You can see whether the board's triac is opening by short-circuiting its control electrode with the tester probe. Using this procedure, electric current will be supplied to the triac. As soon as the voltage stops flowing to the control electrode, the triac will probably close. This means that a minimum amount of current must pass through it to maintain a conducting state. The faulty element will have to be replaced with a new one.

If, having familiarized yourself with the upcoming scope of work, you understand that you will not be able to correct the situation on your own, or after all the actions taken, the washing machine still displays the code, contact the service center for the help of a competent technician. Resetting error E02 involves complex, expensive repairs.

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Basic error codes for the Electrolux gas boiler

The digital LCD display is located on the front of the Electrolux gas boiler body. Displays the current coolant temperature, system operating parameters and a specific error code in the event of a malfunction.

Almost all problems can be fixed on your own, but if new problems and breakdowns continually occur, you should contact a specialist for repairs. Frequent faults:

lack of flame supply or its instability (e1);

coolant overheating (e2);
poor smoke exhaust and malfunction of smoke removal components (error e 3).

Let's consider the reasons for the appearance of fault indicators and possible repair schemes.

e1

The reasons for the appearance of error e1 on the panel lie in reduced pressure in the gas line or a malfunction of the ignition electrode, which is why the flame is not supplied. What can be done:

Check the valve, turn it all the way.
Restart the equipment by pressing the “reset” button. If the boiler does not start, contact the service center for help.
Conduct diagnostics of the electrode: clean it of dirt, adjust its location.
Check the wires for serviceability: inspect for defects, damage, etc.
Inspect the gas valve; if it is faulty, replace the part with a new one.
Diagnose the control board. If damaged, replace it.
If, after diagnosing the above components, the gas boiler still does not work, you need to contact a specialist. A possible reason in this case is air locks in the gas line.

e2

Error e2 detected on the display of the Electrolux device warns the user about the heating of the coolant, which occurs in the event of large airiness in the pipes, a breakdown of the circulation pump, or low pressure in the line. Also, the problem with this error may be a closed or not fully open gas valve.

e3

The value of error parameter e3 is a malfunction of the chimney. The equipment is automatically blocked and turned off, since if there is a blockage in the chimney or sudden temperature changes, the security system sensor is triggered.

Causes and solutions to this problem:

Check and clean the chimney. If it is of the coaxial type, then regular removal of accumulated ice or snow in winter is required.
Check the sensor power contacts for possible defects. If the wires become oxidized, they must be cleaned and the connection restored.
Check the temperature sensor for possible short circuit. If there is a malfunction, replace it.
It is necessary to diagnose the contacts of the Electrolux gas boiler board. If the part does not work, replace it with a new one.
Adjust the supply air draft in the room. Remember that running an air conditioner or fan interferes with the proper operation of the entire heating system. Better open a window or door.
Incorrect assembly of the chimney system leads to such a malfunction. In some cases, it may be necessary to completely dismantle the structure and reassemble it following certain parameters.

e4

Error value e4 – pressure drop in the line is below the norm of 1 bar. The reason may be that the heat exchanger is damaged by scale or the radiator is damaged by corrosion, after which a water leak appears. What can be done:

turn off the device and open the fuel valve to drop the pressure parameter on the pressure gauge. After the procedure, turn on the equipment;
if the error remains on the display, you need to descale the radiator using a citric acid solution;
Using a soldering iron, you can independently eliminate holes that are leaking in the radiator.

e5

The indicator of increased pressure in the line is above 2.5 Bar.

The error may have appeared due to improper operation of the pressure sensor. In another case, the cause is a defective safety valve. How to repair:

restart the boiler using the “reset” button; if the indicators on the display do not change, then proceed to the next steps;
wash the safety valve filter;
check the expansion tank for damage;
Check the sensor contacts for overvoltage or open circuit; if faulty, replace the part.

e6

Damage to the hot water supply sensor. It is necessary to restart the device to determine exactly the problem:

if the boiler does not start working, then it is necessary to replace the sensor;
if the error code remains unchanged, you need to diagnose the contacts and connecting wires of the sensor; Check the system board; if faulty, replace it.

e9

The reason is that the temperature in the boiler drops below 2 degrees. To eliminate further indicators of this code and eliminate possible freezing, it is necessary to install an additional thermometer outside to monitor the temperature. If the boiler will not be used during the winter, drain the water as indicated in the equipment operating instructions.

Additionally, the Electrolux “Basik” gas boiler is configured if there is a similar problem and after a long shutdown.

Possible error codes and breakdowns of Electrolux hi-tech models

If the Electrolux boiler breaks down and the burner turns off, an error code appears on a special screen, which can be used to determine what exactly is faulty. At the same time, a sound signal sounds for 6 seconds. To reboot the device, you must first set the switch to position 0 and then return it to its previous position. And if this does not solve the problem, the fault code continues to appear on the display.

Error code E1 - No flame

The problem is related to combustion or gas supply. To eliminate the breakdown, you must make sure that the gas valve is open. After this, you need to reboot the unit. If this does not help, you need to contact a specialist.

Error code E2 - Coolant overheating

The water temperature exceeded 100 degrees Celsius. It is necessary to first cool the coolant to a temperature not exceeding 70 degrees Celsius. After this, you need to restart the device. If this does not solve the problem, you need to contact a specialist.

Error code E3 - Problems with removing combustion products from the boiler

It is necessary to check the quality of the chimney. If a model is installed in which natural draft is implemented, you need to make sure that the supply ventilation is installed correctly and is not obstructed by anything. It should be clean inside and possibly have a mosquito net. If the problems cannot be solved on your own, you need to contact specialists. If the room where the unit is installed also has fireplaces, stoves and other heating devices running on solid fuel, as well as fans, exhaust hoods, and other devices that help remove air from the room, ask a specialist to check that the supply ventilation takes these into account peculiarities.

If the Fi model is installed, then it has forced draft. It is necessary to ensure that the pipes supplying air and removing combustion products are clean inside and not damaged. They must also be installed in compliance with all requirements and standards. To resolve the problem, you need to press the Reset button, after which the device will reboot. If the problem persists, you must contact your nearest service center.

Error code E4 - The pressure in the heating system is below the maximum permissible value

This value is 0.4 bar. To fix this problem, you need to disconnect the boiler from the network. After this, open the make-up tap and pump in the destination pressure to 1-1.5 bar. After this, the tap can be closed. And turn on the device to the network. If the problem persists, you need to contact a specialist.

Error code E6 - Problems with the operation of the DHW temperature sensor

Sensor failure. You need to call a service technician.

Error code E7 - Problem with the operation of the coolant temperature sensor

Sensor failure. You need to contact a specialist.

Other faults

Error f4 means a malfunction of the circulation pump of the gas boiler Electrolux gcb 24 basic x fi. The repair scheme is simple - you need to reboot the device to set the optimal pressure. If rebooting does not help, then you need to install a new pump.

Error I01

On the Electrolux gwh 265 ern gas boiler, the parameter means there is a blockage in the heat exchanger. It is necessary to descale it with a solution of citric acid. Correct detachment of the part and cleaning methods are described in detail in the equipment operating instructions.

Code e7

The indicator notifies the user about the presence of a defect in the coolant thermostat. It is necessary to check the sensor and the boiler electronic board. If the problem is with the sensor, you need to clean or replace the connecting wires and restart the device. If the board breaks, replace it with a new one.

There may also be a problem in the hot water supply, which requires diagnosing the electronic board and sensor wires for short circuits and other faults. If there is noise after starting or stopping the equipment, you need to check the operation of the pump, fan, and bleed off excess air.

Read more: Why does a gas boiler go out? Main reasons

It happens that after starting the boiler and operating the heating system for a long time, the temperature in the room remains unchanged. If this problem occurs, you need to check the heating valve (is it open or closed), the heating circuit for excess air and the condition of the cleaning filter.

Many problems can be fixed on your own. The main thing is to identify the cause of any malfunctions in a timely manner and realistically assess your own capabilities during repairs. If difficulties arise when dismantling and replacing components of a gas boiler, it is better to contact a specialist for help in repairing the equipment.

Electrolux boiler errors and their meanings

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Electrolux - faults and repairs
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Error E1 - No gas entering the device. Gas pressure is reduced. Malfunction of the ignition system. Problems with the device electronics. Check the gas valve when lowering. Make sure there is no air in the gas pipeline. Check the gas pressure in front of the boiler. Check the electrical power supply. Faulty, dirty or incorrectly installed ignition/ionization electrode. The gas valve is damaged. The electronic control board is faulty. Error E2 - The thermostat is triggered due to overheating of the heat exchanger. The burner goes out, the circulation pump continues to work. After fixing the problem, you need to restart manually. Check the shut-off valves, the heat exchanger overheating sensor and its electrical circuit. Also control the coolant circulation through the primary heat exchanger. The heat exchanger is probably clogged with scale, the heating circuit filters are clogged, the pump is faulty, or the heating system is air-filled. Error E3 (turbocharged Electrolux boiler models) - Problems with the smoke exhaust fan. Incorrect function of the smoke pressure switch. Check the fan, smoke pressure switch, chimney for narrowing or exceeding the maximum length of the pipes that remove smoke (coaxial or separate). Inspect the Venturi device. There may have been melting or blockage. Check electrical connections and wires. Error E3 (Atmo models) - Triggering of the traction sensor. Operation temperature 75C. Auto return temperature 55C. Check the chimney, it may be narrowed or the initial (accelerating) vertical section is missing (at least 2 chimney diameters). Make sure that there is draft in the chimney. Check the traction sensor, electrical connections and wires. Error E4 - The pressure in the heating system is low or the pressure sensor is disconnected. Circulation pump malfunction. Check the pressure in the heating system and, if necessary, top up. Check the minimum pressure sensor. Inspect electrical connections and wiring. Check the functionality of the circulation pump. Error E6 - Malfunction of the NTC sensor of the DHW system. Check the hot water NTC sensor and the electrical connections and wiring. Error E7 - Malfunction of the NTC sensor of the heating system. Check the NTC sensor of the heating system, as well as the electrical connections and wires. Error E9 - The antifreeze system has started. In the heating circuit of the Electrolux boiler, the temperature dropped to +2C. Check the NTC sensor, device automation, and heating system for circuit freezing. It is recommended to raise the temperature of the boiler room or temperature sensor to +5C. If the temperature rises above +2C, the unit will start automatically. Diagnostics when errors occur Error code E1 - No flame on the burner If an E1 error occurs on the Electrolux boiler, make sure that there is no flame on the burner. Check the position of the shut-off valves on the gas line up to the gas valve. Are all taps open? If not, open all shut-off devices installed on the gas pipe. In case of initial start-up, make sure that the air is bled from the pipeline. Is the air vented from the gas line? If not, bleed the air. Check the gas inlet pressure before the gas fittings. Is the nominal pressure value correct? (Natural gas - 20 mbar, liquefied gas - 37 mbar). If not, contact your gas service. Check for ignition pressure after the gas valve. Is the valve opening? Check the functionality of the electrical part of the gas valve. Check the gas valve coils for interturn short circuits and open circuits. The resistance of the EV1 coil is 6800 Ohms, the EV2 coil is 880 Ohms, the modulation coil is 78 Ohms. Are the values correct? If not, replace damaged coils or gas valve. Check the location and the presence of a gap between the ignition/ionization electrodes. Standard gap 3±0.5mm. Is the gap correct? Check the electrode-board cable for mechanical damage. Is there any damage? If the deviation is not significant, adjust the gap by bending the electrode tip or replace the control electrode. If necessary, replace the electrode-board cable. Make sure there is no mechanical damage to the electrode body, is the ceramic shell intact? If not, replace the reference electrode. Does a spark form between the electrodes and the burner? If not, then replace the control board. Check the gas train with injectors for contamination. Are there any deviations? If necessary, contact your gas service (to check the quality of the gas mixture). Check the voltage at the moment of ignition on the board-valve line: EV 1-U = 230V, ±10%; EV 2-U = 230V, ±10% Modulator - U 12V. Are the voltages as specified? If not, enter the service menu of the gas valve setting mode. Press and hold the SET button for three seconds. Has the boiler started? If yes, then adjust the gas valve. If not, replace the control board. Check the electrical connection and grounding, the voltage should be 230V, ±10%, 50Hz. Are the electrical specifications as specified? Check the power supply for potential between Earth and Zero, and between the device body and Zero. Is there voltage between these contacts? If not, check the ionization current. Rated current in the presence of flame is 1.5-4 µA. The minimum current at the ionization electrode is 0.5 μA. Are there any deviations? Replace the control board if there is no abnormality. Check the ionization electrode for contamination, is there any carbon deposits? If not, replace the electrode. Does the automation detect the flame? If yes, then restart the boiler and repeat the procedure. If not, replace the control board. Error code E2 - Heat exchanger overheating. The coolant temperature overheating thermostat has tripped. If an E2 error occurs on an Electrolux boiler, you should check whether the circulation pump is working (with a magnetic detector, or visually by unscrewing the front plug). Does the pump shaft rotate? Check the dirt filters, the position of the thermal heads (if any), shut-off or balancing valves on the heating system. Is the shut-off valve in the open position? Is the filter clean? Rinse (clean) the filters or open the valves. Check the pressure and presence of air in the heating system. The pressure in a cold heating system should be 0.8-1.2 bar. Are the readings normal? Bleed the air from the heating devices, top up the heating system to 1.2 bar, loosen the plug on the automatic air vent of the pump. Check the operation of the expansion tank (pressure is measured in the absence of coolant in the device). Is the pressure in the tank 1 bar? Pump up the expansion tank (the air pressure in the tank should be 1 bar, provided there is no coolant in it). Check the serviceability of the heat exchanger overheat sensor cable - board for mechanical damage. Is the cable OK? Replace the cable. Check the serviceability of the heat exchanger overheat sensor. The contacts are normally closed up to a temperature of 102C. The sensor requires replacement if, when heated to less than 102C, it breaks the electrical circuit between its contacts (normally open) or the contacts are corroded. Is the sensor OK? Replace the sensor. Check the main heat exchanger for increased noise, vibration when the Electrolux boiler burner is operating at maximum power, as well as the presence of deposits, dirt and soot particles between the plates or dark spots. Is the heat exchanger visually clean? Wash, clean the external and/or internal surface of the heat exchanger or replace the heat exchanger. Check the electrical connection, perhaps the pump does not reach the rated speed, the voltage should be 230V, ±10%, 50 Hz. Are the electrical specifications as specified? Install a voltage stabilizer with galvanic isolation, minimum power 0.4 kW. Check the serviceability of the pump: open the terminal box using a tester and phase-zero terminals, check the resistance of the stator winding of the pump motor. Nominal resistance: 1st speed – 430 Ohms, 2nd – 320 Ohms, 3rd – 210 Ohms. Are the resistances rated? If necessary, replace the pump or board. Turn the pump shaft with a screwdriver and remove the plug. Does the shaft turn? If not, remove the electric motor and check the pump impeller for mechanical damage. If necessary, replace the electric motor or pump assembly. If the shaft rotates, check the serviceability of the pump-board cable by ringing it. Is the cable OK? Replace the cable. Measure the voltage supplied to the pump from the control board, the voltage should be 230V, ±10%, is it normal? If not, replace the control board. Check the serviceability of the pump: open the terminal box using a tester and phase-zero terminals, check the resistance of the stator winding of the pump motor for an open circuit or short circuit. Is the resistance normal (200 ohms)? If not, replace the control board. Error code E3 - Smoke exhaust fan is faulty. Incorrect operation of the differential relay (pressostat). If error E3 occurs on an Electrolux boiler after turning on the fan, then first check that the terminals are connected correctly to the contacts of the differential relay. Are the wiring terminals connected to the NO and COM terminals? Connect the terminals. Check (check) the operation of the differential relay using a multimeter. When the fan is running, are the NO and COM contacts normally closed? Check the fan-board cable for mechanical damage. Is the cable OK? Replace the cable or control board. Check for condensation in the silicone tube. Is there condensation? Remove condensation. Check the air pressure switch diaphragm for sticking. Remove the silicone tube from the fan volute, artificially create a slight vacuum (pull air into the tube), if the membrane is working properly, a characteristic click of the triggered microswitch will follow). Is the pressure switch OK? Replace the air pressure switch. Check the electrical connection, perhaps the fan does not reach the nominal speed, the voltage should be 230V, ±10%, 50 Hz. Are the electrical specifications as specified? Check the resistance of the fan windings (24-63 Ohms depending on the power of the Electrolux boiler). Is the resistance normal? Replace the fan or board. Check the resistance of the fan windings (24-63 Ohms depending on the power). Is the resistance normal? Replace the fan. Check Venturi device (Possibly melted or clogged). Are there any deviations? Replace or clean the Venturi device. Check the chimney for blockages. If the failure occurs during the cold season, make sure there is no frost on the smoke exhaust system. Is the chimney clean? Clean the chimney. We recommend installing a chimney for low temperatures. Check whether the chimney is assembled correctly (length, turns, diameter, narrowing, presence of a diaphragm) for excessive resistance to flue gases. Is the chimney installed correctly? Assemble the chimney correctly. Error code E4 - Low pressure in the heating system or circulation pump malfunction If error E4 occurs on the Electrolux boiler, check the coolant pressure on the display (more/less than 0.5 bar). Visually check the heating system for leaks. Are there any leaks or leaks? Check the pressure reading on the display and the presence of air in the heating system. The pressure in a cold heating system should be 0.8-1.2 bar. Are the readings normal? Bleed air from heating appliances, top up the heating system, loosen the plug on the automatic air vent pump in the appliance. Check the cable between the minimum pressure sensor and the control board for mechanical damage. Is the cable OK? Replace the faulty cable. Check the serviceability of the electronic pressure sensor and its contacts for corrosion. Compare the readings of the electronic pressure sensor with the mechanical one, if you have a pressure gauge. Is the electronic pressure sensor working? If yes, replace the control board. Check the operation of the expansion tank. Is the tank pressure 1 bar? (in the absence of coolant in the Electrolux boiler). Replace the safety valve if necessary. Check the valve spool and tank for leaks. Is the tank membrane sealed? Inflate the expansion tank, replace the valve spool or tank assembly. Check the serviceability of the pump: open the terminal box using a tester and phase-zero terminals, check the resistance of the pump windings at different speeds for an open circuit or short circuit. Standard resistances: 1st speed – 440 Ohm, 2nd speed – 330 Ohm, 3rd speed – 220 Ohm. Are the resistances normal? Replace the circulation pump. If the coolant pressure on the display is more than 0.5 bar, restart the boiler. After starting the pump, check that the pressure on the display has increased by 0.1 bar. Has the pressure increased by 0.1 bar or more? Is the pump speed set to 3? Set the pump rotation speed to 3 and restart the boiler. Check whether the pump is working (with a magnetic detector, or by removing the end screw and turning the pump shaft with a screwdriver). Does the pump shaft turn easily? Check the pump impeller for mechanical damage. If necessary, replace the pump. Check the wire for damage by ringing it and the quality of the connection between the terminal clamp and the pump wire. Is there any damage? Replace the cable. Check the mains voltage supplied to the pump. Voltage 220V ±10%, 50Hz? Install a voltage stabilizer. Error code E6/E7 - Malfunction of the DHW/heating system NTC sensor Check the cable for mechanical damage and the quality of the connection between the control board terminal and the temperature sensor cable. Is the cable damaged? Replace the cable. Check the resistance of the semiconductor NTC heating sensor using a multimeter (10 kOhm at 25C). The temperature sensor may be short-circuited or the contacts may be corroded. If a short circuit or open circuit of the DHW temperature sensor occurs, the burner will continue to operate in DHW mode, based on the readings of the NTC sensor of the heating system. Is the sensor resistance correct? Replace the DHW/heating system NTC sensor or control board. Error code E9 - The antifreeze system has activated. The temperature in the heating circuit of the unit is below +2C. If error E9 occurs on the Electrolux boiler, you should check whether the temperature of the heating circuit has dropped below +2C. Check for circulation in the heating system (inspect the supply and return pipes). Is the coolant circulating? Restart the device and restore the heating system to operating condition, taking into account that the temperature of the boiler installation room should be more than +2C. Heat the heating system and NTC heating sensor to temperatures above +2C (for example, with convectors or oil radiators under the unit and around the heating area). Has the boiler started? Check the cable for mechanical damage and the quality of the connection between the control board terminal and the heating temperature sensor cable. Is the cable damaged? Replace the cable. Check the functionality of the NTC heating sensor by measuring its resistance using a multimeter (10 kOhm at a temperature of 25C). Is the sensor OK? Replace the heating system NTC sensor or control board. Wait until the entire heating system warms up to a temperature above +2C and remove external heat sources. Is the heating system sealed, are there any leaks? Restart the appliance and restore the heating system to operating condition. By visual inspection, identify the faulty part of the unit or other heating devices of the system and replace it.

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