Immergas gas boiler errors: error codes and solutions

Problems "Immergaz" with automatic unlocking

As soon as you eliminate the cause of the malfunction, the board will automatically resume operation and heating.

What codes are found:

• b 18 - violation of the heating of the supply circuit (over 95 ° C). Eliminate the causes of poor circulation of the coolant (blockage of filters, heat exchanger, pump blockage);
• b 19 - the heating level on the return line has exceeded 90 ° C. See solution for b 18;
• b 24 / b 30 - supply and return thermistors give different readings. The difference is 10°C. Heat exchanger diagnostics. Descaling;
• b 25 - rapid increase in the degree on the feed line. Feed the circuit with water;
• b 26 - pressure decreased.Measure readings, add coolant to the circuit, adjust the pump operation;
• b 28/b 29 - the fan does not work. Replace the assembly in case of breakage;
• b 33 / b 38 - short circuit, breakage of the DHW thermistor. Connect a new part;
• b 65 - the fan does not start for a long time. Diagnostics and replacement.

Another common malfunction is a yellow uneven flame. In this case, the burner should be cleaned of soot and dust. Also remove dirt from the chimney shaft - it breaks the draft.

Not all models are equipped with a display. Some issue a breakdown code by glowing indicators. For example, Immergas Nike Star/Mini.

The indicator is lit	light bulb flashing	Alternate glow of diodes	Other
Yellow - a message about the presence of a flame.	Yellow diode - standby mode is on.	All in turn - a small amount of liquid.	Lights are not on - the equipment is turned off.
Red - no ignition. Switching off the unit.	All indicators - the draft thermostat has tripped.		Red is on, yellow is flashing - circulation is disturbed.
	Yellow - the NTC probe of the boiler or DHW is out of order.
	Red - Chimney sweep mode is on.

If you are unable to fix the breakdown yourself and the symbols are repeatedly displayed on the screen, it is better to call the wizard.

Features of these gas boilers

After you have purchased or built your home, the first question that interests you is which gas boiler to choose for your home? Gas boiler Immergas - this is an excellent option for this purpose, as it follows an excellent formula - price / quality, and also comes with clear instructions for use. That is, the price is acceptable for most residents of the Russian Federation and the quality of these products is very high.

So, what are the features inherent in these wall-mounted gas units:

• Due to their compact size and weight, they can be installed even in a small kitchen. For the Immergas gas unit, it will not be necessary to allocate a separate installation room.
• Boilers of this brand are both single-circuit and double-circuit. If you just need to heat the room, then the first option is also suitable. If, in addition to heating the room, you also need to heat water for family use, then it is better to choose a double-circuit gas boiler.
• Many wall-mounted models of units have a liquid crystal screen on which you can see the codes of all problems, if any, but one thing is for sure, that you will not do repairs for a long time. Codes can be deciphered by looking at the instructions for these gas boilers.
• These units have indicators of operating modes.
• Each boiler has a copper heat exchanger with natural circulation or forced circulation. If you often leave home, then it is best to install with forced circulation, since such a heating system works completely autonomously.
• Some models are equipped with a room thermostat. You can also connect a remote control to the devices - then it will become even easier to take care of wall-mounted units.

Immergas wall-mounted units do not have to be connected to a chimney, you can simply connect a coaxial pipe that removes all combustion products through a hole in the wall. This is very convenient for those who live in apartments and want to make autonomous heating for themselves. The instructions for the Immergas wall-mounted units describe how to properly install the boiler, as well as how to properly care for it if you decide to do it yourself.

How to install the Immergas boiler

If you want the wall-mounted gas unit to work smoothly and at full strength, then you will have to invite a highly qualified specialist in this field for installation. Firstly, it will have all the components to hold the system together without you having to think about it, and secondly, professional work is always different from amateur work.

Rice. 2 Double-circuit wall-mounted unit Immergas

How is the installation of gas boilers Immergas:

• First you need to decide what equipment suits you for your home, buy it, and only then think about installing it.
• Next, you should find instructions in which everything will be written in detail about installing a gas unit.
• The boiler must be attached to the chosen place in the kitchen or in another room. If this is a wall unit, then you need to attach it to the wall.
• Then the wall-mounted apparatus should be connected to electricity, having previously made grounding in order to avoid the combustion of the boiler during a thunderstorm.
• Next, you need to mount an expansion tank and a circulation pump if you connect heating with forced circulation.
• The next step is to connect the Immergas double-circuit gas unit to the heating system.
• Then you should test the system for leaks (the instructions indicate how to do this).
• Then you need to remove excess air. How to do it correctly is also described in the instructions.
• Well, the last step is to start the Immergas double-circuit gas unit.

Overview of the range

Immergas devices have a wide variety of models.Here you can find samples with one and two circuits, devices of condensing type and convection, as well as compact floor and wall units. You will be able to view more than 10 series, which will differ from each other in characteristics, types of installation and the principle of operation. All series include models with different capacities and performance.

Consider the most popular models among buyers.

• The Immergas Mini mounted unit is a compact product with attractive parameters. Suitable for heating buildings up to 220 m2. The product control panel is an LCD screen with large buttons. There is a burner that will work even with a significant drop in fuel pressure. In the usual kit there is an automatic diagnostic system, a special circulation pump and an expansion tank. The heating rate is 11.7 liters per minute.
• Italian wall products with two Immergas Star circuits include a bithermic heat exchanger, which will simultaneously heat water for the heating system and separately for hot water supply. The product will be controlled by a microprocessor. The owner of the dwelling will receive all the information about the real state of the device and its probable breakdowns. The heating process will continue even if the fuel pressure drops to 3 mbar. An outside temperature reading sensor can be connected to precisely adjust the heating of the home depending on the outside weather.

• Wall products Immergas Maior. The main difference from all other models here is a system that allows you to instantly heat water for any household need.The design has a separate heat exchanger, there is a 6.8-liter expansion tank and built-in equipment that allows you to select the speed and operating modes of the pump. All available settings are displayed on the LCD screen. It is also possible to connect to solar panels.
• Immergas Victrix mounted gas appliances offer the lowest fuel consumption compared to conventional boilers (approximately 35%). They have condensing steel modules. Gas savings are achieved due to the unique design of the built-in automatic valve. Thanks to the use of the latest composite metals, the company's specialists managed to reduce the weight of the boiler by almost 10% without compromising its strength and durability. The furnace chamber has a closed type. The highest temperature during heating is 85 degrees. The speed when heating water is 13 liters per minute. The coaxial pipe for the chimney is purchased separately.

• Separately, Immergas floor-standing products from the popular Hercules series can be mentioned. These models are supplemented with condensing modules to increase performance. The maximum power is 32 kW. The unit consumes gas economically, which will fully pay for its purchase and installation in 2-3 cold seasons. If necessary, the unit can be separately equipped with the following equipment: a boiler with a cumulative effect, room temperature controllers and special sensors that determine the air temperature and correct the operation of heating products.
• The Immergas Mini Nike X 24 3 unit is a boiler with a power of 23.8 kW. Its main features are compactness and low weight (only 25.5 kg). There is an electrical flame modulation, automatic diagnostics, a variety of device protection systems, as well as a built-in type piping.The volume of the tank is 4 liters. It is possible to connect a convenient remote control system. A boiler with one circuit, but the manufacturer allows you to connect a storage boiler to it. The highest temperature can be +85 degrees.

• Immergas Major Eolo 28 4. The company produces very stylish heating structures. This model has a two-circuit scheme with a convection principle of operation. The power of the product is 28 kW, with a load - up to 29.7 kW. The combustion chamber is of a closed type; a coaxial chimney will be required for it. This is a wall-mounted structure that can also be reconfigured for the consumption of liquefied gas.
• Boiler Immergas Ares 22 R. This product has the simplest design. The combustion chamber in it is open. Water is heated in a cast iron heat exchanger. The power of this device is 25 kW. The efficiency at the highest load will reach 88%. An external boiler can also be used to heat water. The electrical power that will be consumed will be only 16 watts.

Malfunctions and errors of heating boilers

Error codes
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Malfunctions and error codes of Viessmann boilersError codes
boilers Ariston

Faults
and errors of Beretta boilersErrors and
malfunctions of Electrolux boilers

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OPERATION AND REPAIR OF BOILERSProterm Panthera
Proterm Skat
Proterm Bear
Proterm Cheetah
Evan Ariston Aegis
Teplodar Cooper
Atem Zhitomir
Neva Lux
Arderia
Nova Termona
Immergas
Electrolux
Conord
Lemax
Galan
mora
Aten

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Boiler models
Boiler repair tipsError codes
Service instructions

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Ariston gas boiler, other malfunctions and their solutions

The Ariston heating unit can "give out" other types of malfunctions. It is worth briefly considering the methods of their elimination.

Heating circuit problems

How to turn on the heating? Usually, errors in the functioning of the heating circuit begin with the number "1". If Ariston does not heat the batteries, in addition to those described above, the following designations also occur:

• 102 - pressure is violated or the sensor is broken (this is a consequence of poor electrical wiring, namely a short circuit; it is solved by ringing the cable from the device itself to the main board);
• 110 - the temperature sensor is broken;
• 111 - pressure is too low (see if water is flowing and if the sensor is working);
• 112 - on return, the temperature sensor does not work correctly (you should find the right spare part for the gas boiler and change it);
• 116 - interruptions in the operation of the floor heating thermostat (close the TA2 jumper).

How to raise (add) pressure in a gas boiler

When the heating temperature jumps or the device stops heating water at all, but does not report a malfunction, you need to check the pressure. If it is too weak (the technical specifications indicated in the instruction manual will tell you what pressure is considered normal for the boiler), you should increase it.

To do this, you need to make a special additional device:

• take a clean plastic bottle;
• cut a thread on the lid so that it turns out to attach a faucet to it;
• drill a small hole in the bottom in which you need to fix the spool;
• pour water into a homemade device;
• close the faucet;
• connect a heating hose to it;
• connect the pump to the spool;
• pour water into the heating system by pumping the pump;
• repeat the procedure until the pressure indicator improves.

Hot water malfunctions

When the lamp with the designation “90” and the symbol with a crossed-out designation of a drop are lit, overheating and automatic shutdown of the heating device occur. It is necessary to check the serviceability of the pressure switch and the place of its inclusion in the heating system.

The appearance of the inscriptions "60C", "70C" or "80C" indicates the temperature (the numbers correspond to t in degrees Celsius) after the tap is closed. This is wrong, you should check the operation of the pump and its control relay. In the event of a breakdown, the pump must be removed and replaced with a serviceable one.

Failures in electronics

The output of the number 301 means that the volatile memory (EEPROM board) is faulty. It is necessary to clarify the correctness of the key on the board of the Ariston device in accordance with the instructions for the user.

If Ariston does not turn on, and there is no signage on it, the three-way valve may need to be repaired.

To make sure that the problem is in this part and it needs to be replaced, you should pull the servo out of it, after removing the bracket. If everything is fine with the valve, after such manipulations it will switch to hot water supply mode, but as a radiator it no longer works.

Flame and ignition control

When gas boiler Ariston BS II 15FF turns on and off, it is recommended to check the fire sensor. There is no screen on this heater, so it will not work to focus on the code designations.Wipe the flame sensor with fine sandpaper, and then with a clean cotton cloth. Inspect the wire leading from the sensor to the board for continuity.

If the specified unit, after several ignitions and attenuations, randomly turns on / off, it is worth seeing if there is enough fresh air. You will need to remove the housing cover by snapping off the fasteners. Then you should remove the casing from the heat exchanger, the combustion chamber and try to start the Ariston heater again. The device has worked - an error in a poorly equipped or too dirty chimney.

Most Common Error Codes and Troubleshooting

Let's try to figure out what the Immergaz gas boiler error codes mean. The most common error 01, it consists in blocking the ignition. Let's consider each error in more detail.

01

Ignition lock. The boiler is designed so that the inclusion occurs automatically. If after ten seconds the burner has not been ignited, a lockout is performed. To remove it, click on reset.

If the boiler turns on after a long period of inactivity, it will be necessary to remove the blockage, since air has accumulated in the gas line. If the unit turns on quite often, seek qualified help from a specialist.

02

Error 02 - the safety thermostat is activated, overheating has occurred, the flame control is faulty. If during the normal operation of the device the temperature begins to rise, the protective function is activated. Wait until the temperature drops to the required level, then press the reset key. If this problem occurs frequently, seek help from a specialist.

03

Error 03 is displayed when the smoke thermostat is activated.That is, a fan malfunction, to solve the problem, remove the case. Then open the chamber, it contains an engine that draws air from the combustion chamber. Open it by unscrewing the screws, clean its blades from accumulated dirt, this can be done with a brush. Treat the bearings with grease and install everything back.

04

Error 04 - high resistance of electromechanical contacts. The contact is blocked, the cause may be the failure of the protective thermostat or the sensor of the minimum allowable water pressure. Turn off the device, and after a couple of minutes, try restarting, or try closing the limit thermostat contact.

Water pressure sensor

If this does not work, close the minimum pressure contacts. Test the contact at the smoke exhaust pressure switch in the same way, after turning on the fan. If you find where the breakdown is, replace the element. If this does not work, you need a repair performed by a qualified specialist and diagnostics of the board.

06

Error 06 - there was a breakdown of the NTC sensor in the hot water system. For identification and repair, you must contact the service center.

10

Error 10 - low pressure in the system. Error e10 occurs when the pressure drops in the system, when it is less than 0.9 bar. First, try restarting, if the error remains, you need to check the following.

The cause may be a heat exchanger leak, check it, if a leak is found, fix it.To eliminate it, use the recharge lever, it looks like a screw, turn it counterclockwise, by this action the water from the water supply will flow into the heating, follow the pressure values, when the number is 1.3, close the valve.

11

Error 11. Smoke pressure thermostat operation. When the chimney does not work well, the boiler is blocked, after half an hour it restarts if the draft has become sufficient. If more than three shutdowns occur in a row, the display will turn red with an error code.

Smoke pressure switch

Press restart to unlock the boiler. In the instructions, the manufacturer recommends contacting a service center, however, first you can check the chimney draft and clean it.

20

Error 20 occurs with a parasitic flame. This indicates a gas leak, or a failure of the flame control system. Restart, if the same thing happens when you turn it on again, you need to test the board in a service center.

27

Error 27. This error indicates insufficient circulation in the heating system. The boiler starts to overheat, the reasons for overheating may be the following: air in the heating pipes, the taps are closed. It is also possible that the circulation pump has been blocked, unblock it. The cause may be clogged filters, check and clean. Check the heat exchanger for deposits.

Removal of air from the heating system

28

Error 28 indicates a leak in the water supply circuit, that is, the device heats the heating circuit, and the temperature in the water supply also increases, at a time when it should be unchanged. Check all the faucets in the house for leaks, also check that the taps are closed.

Wall mounted gas boiler IMMERGAS. Model overview

Gas boilers IMMERGAS - two hundred heating horses, says the slogan of the company. The company has located its production facilities in Italy and for 50 years has won trust, respect, and recognition of quality, predetermining only positive feedback from its customers.

The north of Italy has long been famous for technical innovations in all areas of industrial production. The largest company in the European market specializing in the production of wall-mounted gas boilers under the world famous brand Immergas was no exception.

Using only the latest technologies and modern design in its developments, the Immergaz gas boiler is distinguished by reliability and high quality. The company is so confident in its products that it provides an unparalleled 5-year extended warranty!

Offering the Immergaz gas boiler to the modern heating market, the company took care of expanding the range of equipment so that the boilers can be operated not only in residential buildings, but also in industrial facilities, offering mini boilers for large areas.

Our review is devoted to wall modifications of boilers under the names NIKE STAR 24 3 R, NIKE MYTHOS 24 3R, and EOLO STAR 24 3R - which have become hits in the domestic market. Consider their features, principles of operation, technical characteristics. Let's try to create our own opinion about the advantages of engineering solutions of Immergaz specialists, talk and leave a review about possible shortcomings.

Ways to solve some problems with self-repair of a gas unit

Various components of the heating installation can fail for various reasons. These can be low-quality parts, violation of operating requirements, sharp blows to the component parts of the unit.

• The most common cause of failure of volatile devices is a settings failure. Repairing a gas boiler with your own hands should begin with checking the correct settings and the presence of open contacts. When troubleshooting, the unit is set to the "Winter" mode and the setting is set to the maximum heating temperature.
• If the pump does not work, then either you just need to replace the cable, or you will have to change the pump itself.
• If the burner is not supplied with gas, then you must make sure that the gas cock is open, the gas pipeline is not clogged, the voltage supply is in order. If the problem persists after all these actions, most likely, you will have to change the electronic board.

Turning off parapet boilers in severe frosts can be caused by the appearance of frost on the chimney. The formation of an ice crust is explained by the content of water vapor in the discharged combustion products. As a result of freezing of ice growths and obstruction of the exit of flue gases, the device automatically turns off and attempts to turn it on again will be unsuccessful.

Do-it-yourself gas boiler repair is far from always possible and only in cases of visible and simple malfunctions. Complicated breakdowns can be repaired qualitatively and reliably only by specialists with the necessary knowledge and equipment.

The Italian manufacturer Immergas has factories in 15 countries around the world. Gas boilers of this well-known manufacturer are sold throughout Europe, he also has Russian representative offices. Immergas produces boilers of the "new generation" - condensing. They use not only the heat that is released from the combustion of gas, but also the heat from steam. This means that fuel costs are reduced by almost 35%.

You can find about 80 models of Immergas products, but not all of them are supplied to our country, but only those that are adapted to domestic climatic conditions. They will be discussed in our article.