Errors of the gas boiler "Ariston": how to find and fix the problem by code

The pressure in the boiler rises

When the pressure in a double-circuit gas boiler drops, this is somehow understandable, but when the pressure itself grows! What could it be? However, this is exactly what I had to face once. This was discovered thanks to a safety, relief valve.He began depressurizing by spitting water from the boiler. The manometer showed a pressure exceeding 3 bar.

First of all, I relieved the pressure in the heating system through the Mayevsky tap, and began to observe the readings of the pressure gauge, the pressure slowly but surely grew. The first thought was to skip the make-up tap, pulled it up, nothing has changed. Then I took out the manual for servicing the boiler (the Manual can be downloaded here) began to consider the hydraulics diagram, and pretty quickly realized that the reason was in the secondary heat exchanger.

So, there are two reasons why the pressure in the boiler can gradually, but constantly increase: 1) The feed valve does not hold. 2) Faulty secondary heat exchanger

What does the repair of Ariston boilers include?

Repair of Ariston boilers includes the following types of work:

• cleaning / washing of the heat exchanger using special tools;
• replacement and cleaning of injectors;
• restoration or replacement of controllers, sensors, pressure gauges, thermostats, thermometers;
• installation and configuration of control units;
• carrying out commissioning operations;
• checking the functioning of the coolant, electrical connections;
• setting up automation and alarm systems, etc.

We will promptly arrive at the site, inspect the equipment and calculate the estimate. Broken parts will be replaced by original parts.

How to proceed

Restarting the Ariston boiler, which is recommended to eliminate errors, is not practiced with code 601 - it will not work. Considering that there are two "suspects", to start, to save time, it should be done with the diagnosis of the smoke exhaust channel. To get to the thermostat, you need to remove the casing of the unit, and the probability of damage to the device is low.

Increase air flow

• In practice, increasing the efficiency of natural ventilation of the room with the Ariston boiler removes error 601. It does not take much time to open the door - such a simple action increases traction and eliminates the problem.

• If a powerful exhaust device is working in the adjacent room, not far from Ariston, turn it off. Error 601 will be removed. The manufacturer specifically stipulates that the operation of units of this class near atmospheric boilers is prohibited.

• Clean the heat exchanger housing. If, after a long downtime, the operation of the Ariston boiler is overgrown with dust, soot, the natural circulation of air masses decreases, the draft drops, error 601 appears.

Clean the Ariston boiler

Check the chimney

Clogging of the channel (leaves, dirt, cobwebs), icing of the head - the reasons for the decrease in thrust and error 601 of the Ariston boiler. It is easy to identify visually. It is enough to go outside, look at the cut of the chimney pipe. The formation of ice, a layer of frost is immediately visible. To check the "purity" of the channel, you need to remove the first knee. If the chimney is clogged, it will not take long to clear it.

Coaxial chimney with protection against the external environment

Advice

Flue gas removal system in the Ariston boiler

• The manufacturer's instructions indicate standard requirements: length, section, angle of inclination, installation location of the condensate trap, number of turns. Error 601 often appears with independent, non-professional channel arrangement. Mistakes will have to be corrected.

• Periodic equipment failure due to poor draft is caused by an illiterate chimney laying scheme. If the wind rose is not taken into account and proper measures are not taken, the Ariston boiler corny blows out in gusts. Hence the error 601. You need to cover the head, and the problem will be solved.

• Testing thrust with a flame (candles, lighters, matches), which is recommended on a number of thematic sites, often gives a false result. Deviation, fluctuation of the "light", if there is, then whether this is enough for the correct operation of the chimney thermostat is a big question.

Test sensor

The thermostat at a critically high temperature in the chimney works, turning off the supply of "blue fuel" to the burner of the Ariston boiler.

Temperature sensor for Ariston boiler

Decryption

The practice of operating Ariston boilers shows that error 502 often appears when the unit is started up after a long period of inactivity in an unheated (damp) room or as a result of a severe thunderstorm. Informs about the automatic fixation of the burner operation when the valve regulating the gas supply is closed (false, parasitic flame).

Error 502 on the Ariston boiler display

There are several reasons for the appearance of error 502 on the Ariston boiler display, so there can be no unambiguous recommendation for troubleshooting. Based on his own experience and analysis of user correspondence on thematic forums, the author advises adhering to the following algorithm of actions. The conditions for placing the heating unit, the model, the specifics of operation at each facility are different, so all opinions should be taken into account. Some hint will surely help to remove the error 502 of the Ariston boiler.

Water heating problems

If during the washing mode the washing machine freezes for a long time, stops, does not heat up or constantly drains water, the causes of the breakdown should be sought in the heating circuit. The device will signal these problems with codes F04, F07 or F08.

Failure of the heating element or pressure switch and codes F04, F07

In washing modes that require heating, the error may appear immediately after start-up, or after water is drawn, but rinsing or washing in cold water will work normally. In this case, there are several options for solving the problem (in addition to the standard turn on / off the machine to restart the controller).

If the code appeared on the display at the washing stage or at startup (the machine does not even want to draw water), most likely the reason lies in the heating element itself. It can "punch" on the case when the contacts are separated or simply burn out.

To fix the problem, you need to get to the heating element, check all its connections, change the resistance with a multimeter (at a power of 1800 W it should give out about 25 ohms).

To replace a faulty heating element, disconnect the cable with wires, unscrew the fixing nut (1), press on the pin (2) and pry off the sealing rubber (3), then install a new part and assemble in the reverse order

If the device collects and then immediately drains water, the cause may be a breakdown of the pressure switch - the water level sensor. In the event of a malfunction, this element can provide the controller with information that the heater was not immersed in water, so the machine does not start heating.

In this case, it is necessary to check the tube of the water pressure sensor with the pressure switch (the hose may become clogged, bent, frayed or come off). At the same time, inspect the contacts of the sensor itself - it may be necessary to clean them. But more precisely, code F04 “says” about the breakdown of the pressure switch - most likely, the part will require replacement.

To check the operation of the pressure switch, you need to put on its inlet fitting a small piece of hose with a diameter identical to the removed tube and blow - characteristic clicks will be heard from a serviceable part

In some cases, the problem may be in the board itself, faulty wiring or contact groups in the area from the board to the heater or water level sensor. Therefore, you should ring all the elements of the control unit associated with the operation of the heating circuit, if necessary, replace burnt tracks or the controller itself.

Malfunctions in the heating circuit and symbol F08

If the water heating does not work correctly (or the machine “seems” that it starts when the tank is empty), error code F08 will appear on the display. The most common cause is a malfunction in the pressure switch circuit.

Such a problem may occur due to high humidity in the room, which adversely affects the controller. To make sure that the board is in order, inspect it, wipe it dry or blow it with a hair dryer.

Another simple solution to the problem can be the disconnected contacts of the heating element and the pressure switch, especially if the device was first started after transportation. In other cases, a more professional inspection with possible replacement of parts will be required.

First, make sure that there really is no water in the tank, then remove the back panel of the machine and check the heating element with a tester

Possible malfunctions of Ariston machines, indicated by code F8:

• If the washing mode is interrupted immediately after starting or during the washing phase and the appliance does not heat the water, it is likely that the heating element will need to be replaced.
• If the machine stops after starting, when switching to the rinse mode or does not wring out, it is possible that the contact group of the heating element relay has “sticked” on the controller in the on state.In this case, you can replace the failed elements of the microcircuit and, if necessary, reflash the board.
• If the device “freezes” in various modes (and this can be either washing or rinsing or spinning), the wiring or contacts in the heater circuit may be damaged, or the pressure switch may break, which considers that the machine does not receive enough water.

But if, when checking all the connections of the circuit and separately the pressure switch, the heating element relay and the heating element itself, no damage is detected, the controller will have to be changed.

Technical data of Ariston gas appliances

• Ariston boilers are used for heating and water heating, that is, they are double-circuit. Each modification has its own characteristics, but the common type of fuel is gas.
• The gas combustion chamber can be either open type or closed. In the presence of a chimney, units with an open chamber are used. And in apartments of multi-storey buildings, where there are not always chimneys, they use equipment with a closed combustion chamber.
• Power. Using this indicator, the gas consumption required to heat the room is calculated.
• Compactness. Wall appliances are used in small, narrow rooms. Floor-standing units used in production or storage areas are heavier and require more space for installation.
• The presence of a control unit. This element is indispensable when turning off the water, a sharp decrease in gas. In case of any malfunctions, the unit will immediately turn off the device, which will prevent damage. It can also save fuel consumption.

Ariston boilers are used for heating and water heating, that is, they are double-circuit

Decryption

Error 501 appears in the absence of a burner flame and is typical for all modifications of Ariston.Its presence is controlled by an ionization sensor installed in the combustion chamber. There are several factors that initiate the appearance of such a code, although the solution to the problem is not difficult. Error 501 is generated by the boiler electronic board after the 3rd ignition attempt (at full power) with a negative result.

What to do

Re-ignite with the Reset button. Two or three attempts resolve the 501 error.

Resetting error 501 through the reset button of the Ariston boiler

Resetting error 501 through the reset button of the boiler Ariston Genus

On a note. For Ariston boilers of the Class 24FF series, professionals note a factory defect - when pressing on Reset, the stem does not always reach the microswitch. It is better to restart in case of an unsuccessful attempt directly from the control board (using the corresponding button).

Resetting error 501 through the reset button of the boiler Ariston CLAS

Error codes of other boiler units

The list of all possible errors, their digital designation, decoding can take a long time. In order to more fully understand the significance of various codes, it is worth giving a description of the most important, most frequently occurring problems with gas boilers.

• 501 - Ariston boiler error 501 indicates problems with ignition, the boiler must be reset with the RESET button. If there is no flame, the gas supply must also be checked.
• 6p1 - if an error 6p1 of the Ariston boiler occurs, it is necessary to check the exhaust system, it means that the contacts of the relay responsible for the operation of the fan have not closed in the normal way. Sometimes resetting with the Reset button helps.
• 5p3 - with an error 5p3 in the Ariston boiler, a flame separation from the burner was detected.
• 117 - if error 117 occurs, the Ariston boiler must be reset using the Reset button, and it should work.
• sp3 - no burner ignition.It is found in models with the EGIS Plus index and the like. Sometimes it is interpreted as a flame detachment, which makes it possible to attribute the sp3 code to the most critical errors.

Particular attention should be paid to problems such as flame separation. It occurs due to too powerful gas flow and can lead to gas contamination inside the boiler. The same error of the Ariston 501 or 6p1 boiler does not cause any special problems, except for the inability to turn on the water heating

Mistake - flame separation in the Ariston boiler may indicate serious problems in the supply system, they cannot be solved on their own, you just need to call the master, after turning off the gas supply

The same error of the Ariston 501 or 6p1 boiler does not cause any special problems, except for the inability to turn on the water heating. Mistake - the separation of the flame in the Ariston boiler may indicate serious problems in the supply system, they cannot be solved on their own, you just need to call the master, having previously turned off the gas supply.

When the flame breaks off, a fire hazardous situation arises, so if it occurs frequently or at least systematically, it is necessary to be puzzled by checking the gas supply line. In the boiler, the accumulated gas can flare up and cause mechanical damage to it or even endanger the health of people living in the apartment.

In addition, the heating efficiency is significantly reduced, the gas consumption for the same volume of water increases. The power of the flame must be regulated smoothly, without pops inside the boiler and other abnormal phenomena and sound effects. Only then can you expect economical operation from the heater.

Rice. 3

Design features of the gas boiler Baksi baxi, Navien, Ariston

In any case, familiarization with the technique of this class and the features of modern models is useful. This knowledge will help to choose the right equipment, not to make mistakes during operation.

In domestic boilers Baksi (baxi), Navien and Ariston, gas, diesel and solid fuels are burned to heat water, electric heating elements are used. For a more complete use of the potential of energy resources, heat exchangers are being improved. They make long ducts of complex shape to ensure that the liquid remains in the working area for a long time.

Compactness is the current trend. Manufacturers offer gas boilers with square bodies of relatively small thickness. Some models, due to their aesthetic characteristics, deserve to be placed in a conspicuous place.

The next feature is the introduction of automated control systems. They control the combustion process, change the operating modes, taking into account the readings of temperature sensors on the street and in separate rooms. When overheating, the equipment turns off without user intervention.

Consideration should be given to situations where Baksi gas boiler does not heat water. This happens, for example, when the supply of energy resources is interrupted. It is not difficult to make an appropriate check even without special professional training.

Circulation pumps, valves, other typical components and assemblies rarely fail. Their designs are designed for many years of operation without mandatory maintenance. There are no moving parts in electronic circuits. Their breakdowns are due to marriage. Subject to the rules established by the manufacturer, the resource of modern gas heating boilers is more than 10 years.

Voltage surges in the power supply network can damage the electrical part of the equipment. To exclude such influences, an external stabilizer is installed. Checking the grounding system will come in handy. This completes the set of preventive measures for this group of problems.

It is much more difficult to provide protection against the most common cause of breakdowns in gas boilers - scale. It is she who will be studied in detail in this article. When heated, calcium and magnesium salts are converted to a solid state. It is these impurities that clog narrow technological holes in heat exchangers. They also form a porous structure on the surface of electric heating elements. With a significant violation of the normal heat dissipation, their cases are damaged.

To prevent the formation of scale and lime inside the boiler, it is advisable to install non-chemical filters (water converters), magnetic and electromagnetic, which will ensure a long “life” for your boiler and an uninterrupted supply of hot water, as well as protect the heating circuit.

Other causes of error

1. Heating circuit filter. Installed at the entrance to the Ariston boiler, in the lower part. If the maintenance intervals are not observed, contamination with sediments from the system, error 117 is guaranteed.

Heat exchanger. A clogged cavity prevents the free circulation of fluid. After washing the device, error 117 is eliminated.

Maintenance Method

• Dismantling the heat exchanger. Previously, the water from the Ariston boiler is drained, the mains are blocked with valves at the inlet.
• Mechanical cleaning of surfaces. Branch pipes, fins on the heat exchanger body are freed from dirt and deposits.
• Solution preparation. On sale there are several special preparations for removing scale, dirt from the cavities of boiler heat exchangers.But an aggressive composition is easy to prepare on your own. Recipe: 5 tsp citric acid per liter of water. To quickly dissolve the grains, it must be heated.
• Filling the device with aggressive liquid. Filling is carried out gradually, until a trickle appears in the outlet pipe.
• Time delay. Not less than a day. It is advisable to place the heat exchanger where it will not cool down - the increased temperature of the liquid and the device body helps to soften deposits.
• Flushing. With clean water, under pressure, until the smallest fractions are completely removed from the cavity.

Failures in electronics (error 3**)

Such complex modern equipment as gas boilers is equipped with electronics for automatic operation and response to different situations. Control boards can fail as a result of aging, power surges, excessive moisture, or mechanical damage.

Error No. 301. Problems with the EEPROM board (non-volatile memory) of the display. If such a message occurs, you need to check the correct installation of the EEPROM key on the motherboard. This must be done as described in the user manual for the respective model.

If the key is working correctly, then you need to check the contacts of the cable from the motherboard to the display board. There may also be a problem with the LCD screen itself. Then it will have to be replaced.

The display is connected to the board with a cable. If the boiler is working, and the screen is off, then first of all you need to check the quality of the connection. Naturally, when the power is completely off

Error number 302 is a special case of the previous problem. Both boards pass the test, but the connection between them is unstable. Usually the problem is a broken cable that will have to be replaced. If it is in order, then the fault is on one of the boards.They can be removed and taken to a service center.

Error No. 303. Malfunction of the main board. Rebooting usually does not help, but sometimes it is enough to turn off the boiler from the network, wait and turn it on again (this is the first sign of aging capacitors). If such a problem becomes regular, then the board will have to be changed.

Error #304 - More than 5 reboots in the last 15 minutes. Talks about the frequency of problems that arise. You need to turn off the boiler, wait a while and turn it on again. It should be monitored for some time to identify the type of warnings if they reappear.

Error number 305. Crash in the program. It is necessary to let the boiler stand for some time off. If the problem persists, you will have to reflash the board. You need to do this at a service center.

Error No. 306. Problem with the EEPROM key. The boiler needs to be restarted. If the error persists, you will have to change the board.

Error number 307. Problem with the Hall sensor. Either the sensor itself is faulty, or there is a problem on the motherboard.

Error No. 308. The type of combustion chamber is set incorrectly. It is necessary to check the type of combustion chamber installed in the menu. If the problem persists, then the wrong EEPROM key is installed or the motherboard is faulty.

You can try to fix any electronic boards in computer repair shops. Especially if the problem is caused by loss of contact or aging capacitors.

Error No. 309. Flame registration after blocking the gas valve. In addition to a malfunction of the motherboard (it will have to be replaced), there may be a problem in the ignition unit - a loose closing of the gas valve or a malfunction of the ionization electrode.If the problem is in the electrode, then you can try to simply dry it.

Errors of gas boilers Ariston

Descriptions of error codes for Ariston boilers. Control board (error 302)
Ariston boilers mainly use GALILEO-MCU boards with protection against voltage surges of more than 275 volts and fusible links, the current phase does not matter.

Ariston boiler error 501. Ignition failure. How to fix
Fault code 501 means no flame on the burner. Fault code 502, on the contrary, means the presence of a flame on the burner, but with the gas valve closed.

Codes of malfunctions and errors of boilers Ariston (Part 1)
Almost any modern gas boiler is equipped with a variety of sensors, measuring and control devices, information from which enters the main control module (board) and from which control signals are sent to turn the actuators on and off.

Arison error 104 - overheating
Error 104 gas boiler ariston. The main causes of boiler overheating and poor circulation of the coolant.

Heating circuit

Does the scoreboard show an error? Perhaps the problem lies in the malfunction of the heating circuit. Go through the list below, find the error code and fix the system.

Error code 101 - Overheating of the primary heat exchanger

The overheating thermostat has tripped/failed or the temperature of the NTC sensor is above 102C:

1. Check/adjust the maximum pressure of the gas valve.
2. Clean/replace the heating circuit filter.
3. Scale in the heat exchanger. Washing / replacement of the heat exchanger.
4. Check circulation pump for damage.

Error code 103 - Insufficient circulation or no coolant

Supply temperature increase over 7 C/sec (when repeated three times):

1. Check the coolant pressure in the heating circuit, or remove air from the Ariston boiler.
2. Cleaning or replacing the heating circuit filter.
3. Check circulation pump for damage.

Error code 104 - Insufficient circulation or no coolant

Increasing the supply or return temperature by more than 20 C/sec:

1. Check the pressure of the coolant in the heating circuit, or bleed the air from the Ariston boiler.
2. Cleaning or replacing the heating circuit filter.
3. Check circulation pump for damage.

Error code 108 - Low pressure in the heating circuit

Drink recommended:

1. Check the pressure of the heat carrier in the heating circuit, or bleed the air from the boiler.
2. Check the wiring going to the pressure switch. Check or replace the pressure switch.
3. Check the heating circuit and boiler for leaks.
4. Cleaning or replacing the heating circuit filter.
5. Check circulation pump for damage.

Error Code 109 - "True" Test Failed

1. The temperature of the return line during the start-up period of the Ariston boiler is 5 C higher than the temperature in the supply line of the heating system.
2. Make sure the NTC 1 and NTC 2 sensors have contact with the heating pipes.
3. Check the heating medium pressure in the heating circuit.
4. Check the wiring going to the pressure switch. Replace the pressure switch.

Features of Ariston gas boilers

The popularity of Hotpoint / Ariston branded equipment is associated not only with the low price of all products.The functionality of this technique is often close in its characteristics to the flagship models of well-known manufacturers.

So, for gas appliances of this developer, the presence of such functions is considered the norm:

• Automatic maintenance of the outlet water temperature regardless of any changes in the environment, as well as fluctuations in the temperature of the water itself and a change in its pressure. The intensity of the flame is adjustable without user intervention;
• Automatic pumping of air from the heating system, which creates safe conditions for the operation of the device;
• In the event of emergency situations, the operation of the circulation pumps is blocked.

Rice. one

All protective systems, as well as the flame maintenance and regulation unit, work through an electronic board. This allows you to organize not only a convenient panel with control buttons, but also an indication of the current mode of operation, and, if necessary, error codes indicating the alleged cause of the problem.

The decoding of these codes is usually presented in the instruction manual. The owner of the equipment can independently understand the situation and, as far as the skills are available, also eliminate the cause. But in most cases, such information is useful only in order to determine whether it will be enough to simply restart the boiler or whether it is time to call the master to the house.

Features of Ariston gas boilers

The popularity of Hotpoint / Ariston branded equipment is associated not only with the low price of all products. The functionality of this technique is often close in its characteristics to the flagship models of well-known manufacturers.

So, for gas appliances of this developer, the presence of such functions is considered the norm:

• Automatic maintenance of the outlet water temperature regardless of any changes in the environment, as well as fluctuations in the temperature of the water itself and a change in its pressure. The intensity of the flame is adjustable without user intervention;
• Automatic pumping of air from the heating system, which creates safe conditions for the operation of the device;
• In the event of emergency situations, the operation of the circulation pumps is blocked.

Rice. one

All protective systems, as well as the flame maintenance and regulation unit, work through an electronic board. This allows you to organize not only a convenient panel with control buttons, but also an indication of the current mode of operation, and, if necessary, error codes indicating the alleged cause of the problem.

The decoding of these codes is usually presented in the instruction manual. The owner of the equipment can independently understand the situation and, as far as the skills are available, also eliminate the cause. But in most cases, such information is useful only in order to determine whether it will be enough to simply restart the boiler or whether it is time to call the master to the house.

Features of boilers Ariston

Ariston gas boilers are the most in demand on the market, thanks to their time-tested reputation. They are characterized by compact size, convenient connection and maintenance system, reliable operation, variety of models. The company produces single-circuit and double-circuit units, wall-mounted and floor-standing, with an open (chimney required) and a closed combustion chamber (removal of combustion products through a coaxial pipe).

Ariston devices are equipped with an improved heat exchanger design that reduces gas consumption, protective automation, which increases the service life, and precise settings. In case of interruptions in the supply of water or gas, an automatic blocking occurs, which eliminates the failure of the device.

Decryption

The 307th fault code is displayed on the display of the Ariston boilers of the Clas, Genus and Egis + modifications. The reason is electronics failures: the instructions indicate an internal board error. It manifests itself in different ways: during the initial start-up of the unit, the analysis of hot water, periodically during the operation of the boiler. Buying a new EPU, given the cost of the unit, is not in a hurry. Analysis of correspondence on the forums, statistics on troubleshooting Ariston boilers shows: in some cases, the cause of error 307 is removed by the user on his own.

Ariston boiler gives error 307