Demirdöküm Combi Boiler Error Codes If your Demirdöküm combi boiler is experiencing one of the following faults, make sure that the gas valves are open before receiving Demirdöküm combi boiler service. Never try to open the device yourself . The slightest mistake you make will endanger both yourself and your loved ones.Demirdöküm Combi Fault Codes and their meanings are explained in detail in the list below.
Demirdöküm Combi Boiler Error Code Solutions
ADEN
F0 Fault Code: It is the code indicating that the water pressure of the boiler is low. When this code is displayed, you can solve the problem by pressing the device with 1 to 2 bars of water.
F1 Fault Code: This is the code indicating that the overheat thermostat is also faulty. As long as the boiler gives this error, the device does not provide any efficiency. This thermostat needs replacement. You need to get help by calling service.
F2 Fault Code: It is the code that shows that the Ntc Sensor, which is one of the parts that is effective in the flow of hot water, has also occurred. As long as this code is on the display of the device, the combi will not run hot water or will have problems if it does not. Get support from Demir Döküm Combi Service.
F4 Fault Code: It is an error warning indicating that the device is malfunctioning even when it is not igniting. In other words, the combi does not ignite after ignition and does not activate. Gas group, ionization, electrodes may also be a problem. Get support from Demir Döküm Service.
F5/F6 Fault Code: It shows that the boiler has malfunctioned during the air flow, so the device gives F5 warning. There may be a problem with the chimney sensor of the boiler or the air processor. Have the boiler intervened by contacting the service.
OC Fault Code: It is the explanation of the code showing that the Air Process horse is connected. If this code is on the screen of the device, reset the boiler. If it does not improve after reset, have the boiler intervened by Demir Döküm Service.
CC Fault Code: It is the code showing that the process or the chimney sensor has been cancelled. Get help to solve the problem by calling Demir Döküm Service.
ATRON
F1 Fault Code: This is the fault code indicating that overheating has occurred in the Atron combi boiler. In this case, we can say that there is a problem with the limit thermostat. You need to contact Demir Döküm Atron Service as part replacement will be required.
F2 Fault Code: This is the warning code indicating that there is a problem in the hot water NTC. In this case, the boiler will not deliver hot water because the hot water sensor is faulty. Sensor replacement is required to fix the problem. For this, you should call Atron Combi Boiler Service.
F3 Fault Code: There is a connection problem in the sensor, which is in the task of measuring the value of the water sent by the boiler to the installation. In this case, there is no action that you can intervene as a consumer. You should call Demir Döküm Combi Service and ask for help.
F4 Fault Code: In this warning code, which indicates that the device does not ignite, the device will not be efficient because it does not provide ignition. For this reason, we can say that there is a problem in the gas valve or ionization. You should get help on the subject by calling Demir Döküm Technical Service.
F5 Fault Code: It is the error code indicating that air flow is not provided. If this warning code appears on the boiler screen, we can say that the air processor is faulty. You need to call Atron Combi Boiler Service as a prosestat replacement will be required.
F6 Fault Code: It is the error code indicating that the sensor, which is in the task of measuring the return value of the water sent to the installation by the device, is defective. You need to contact Atron Service to resolve this situation.
F7 Fault Code: It means there is a problem in the gas armature. Since the gas armature is also a problem, the device does not ignite and naturally the combi boiler does not provide efficiency. In this case, you should call Demir Döküm Combi Service to solve the problem.
F8 Fault Code: It is the error code indicating that there is an overheating problem in the sensor, which is in the task of measuring the value of the water that the device is sending to the installation circuit. In this case, sensor replacement may be required. You should not interfere with the device and get help by calling Demir Döküm Atron Service directly.
F9 Fault Code: It is the error code indicating that there is a short circuit problem in the Prosestat. In this case, we can say that the air processor is faulty and therefore does not provide air flow. After the part replacement, the problem will be solved. You only need to contact Demir Döküm Technical Service for this.
F10 Fault Code: This is the warning code showing that the pressure of the Atron boiler is below 0.3 bar. In this case, the boiler must be flooded with a 1.5 bar filling tap and then you must reset the device. This way the problem will be solved.
F11 Fault Code: If this warning code appears in Atron combi, it means that water flow is not provided. In this case, we can say that there is no water circulation in the boiler. You should call Demir Döküm Atron Service to resolve the problem.
F12 Fault Code: It is the fault code indicating that the voltage coming to the flat is below 165V. In this case, you should not use the device, you should use the voltage stabilizing regulator device. Otherwise, the parts inside the device may be damaged and burnt.
F13 Fault Code: This is the warning code indicating that there is a problem with the temperature difference between the heating flow and return sensors of the Atron combi boiler. In this case, you should call Demir Döküm Service.
İSOFAST
F01/F04 Fault Code: This is the error code indicating that the Isofast combi boiler has failed to fire. Since the device does not ignite, efficiency cannot be obtained from the device. In this case, we can say that there is an ionization problem. In order to solve the problem, you should call the Isofast Combi Boiler Service.
F02 Fault Code: If this warning code appears on the Isofast combi screen, it means that the air flow is not provided. This is because the processor is faulty. In this case, you should call Demir Döküm Combi Service.
F03 Fault Code: If this warning code appears on the boiler screen, if the device causes the problem within 2 hours and 40 minutes, there is a problem in the process. For the solution, you should call Demir Döküm Isofast Service.
F05 Fault Code: The explanation of the F05 fault code, which is frequently encountered in the boiler, is overheating. In short, we can say that the device malfunctions due to damage to the limit sensor, which is the overheating thermostat of the device. You can get help in this regard from Demir Döküm Isofast Service.
F06 Fault Code: This is the warning code indicating that there is a problem in the heater circuit sensor. In this case, we can say that the sensor that provides the heating of the cores is faulty. You should call Demir Döküm Technical Service as sensor replacement is required.
F07 Fault Code: It is the error code indicating that there is a problem in the working sensor for the hot water circuit of the boiler. In this case, you cannot get hot water from the combi because the sensor is faulty. You should contact Demir Döküm Isofast Service to resolve the problem.
F08 Fault Code: If this warning code appears on the Isofast combi screen, it means that the heater sensors are faulty. The only important thing is to find out which sensor is malfunctioning. If the boiler gives this error code, there may be a problem with more than one sensor. In this case, you should call Demir Döküm Combi Service for both fault detection and intervention.
F09 Fault Code: It is the fault code that the hot water sensor is faulty and therefore there is a hot water problem in the combi. Since the hot water sensor needs to be changed, you should ask the Isofast Combi Service for help.
F10 Fault Code: This is the error code indicating that an error has occurred in the sensor that controls the return temperature of the water sent by the boiler to the heating circuit, and therefore the sensor does not perform its duty. In such a case, you should get help from Demir Döküm Isofast Service.
F11 Fault Code: This is the warning code indicating that no signal can be received from the main board of the Isofast combi boiler. The boiler will not work in this case. You should call Demir Döküm Combi Service to solve the problem.
F12 Fault Code: When the signal cannot be received from the display card, this warning code appears on the Isofast combi screen. In this case, the video card either needs to be replaced or repaired. In this case, you should get the necessary help from Demir Döküm Isofast Service.
F13 Fault Code: If this error code appeared on the screen of your Isofast combi, it means there is a problem with the main board. In such a case, the card has malfunctioned due to a technical problem. It may need replacement or repair. In this case, Isofast Combi will not work. Call Demir Döküm Technical Service for the solution of the problem.
F14 Fault Code: This is the warning code indicating that the heating water temperature of the device is more than 95°C. If the degree rises spontaneously, you should not interfere with the device and call Demir Döküm Isofast Service.
F15 Fault Code: This is the warning code indicating that there is a problem in the stepper motor belonging to the three-way valve in the gas mechanism of the device. In this case, stepper motor replacement may be required. As a consumer, you should not interfere with the device and get help from Demir Döküm Combi Service.
F16 Fault Code: It is the fault code that states that the ignition still continues even though the burner goes out. In this case, we can say that there is an ionization problem in the Isofast combi boiler. You should get help on the subject from Demir Döküm Combi Service.
F17 Fault Code: This is the warning code indicating that the voltage to the Isofast combi boiler is less than 170V. If the device is constantly experiencing this problem, then the parts of the device may be damaged and burned. You have to use the Regulator device known as the voltage regulator.
F18 Fault Code: It is the error code that states that there is a problem with the video card. If the video card has been changed, it probably means that the settings have not been made. If there is no intervention on the video card, then we can say that it is faulty. You should contact Isofast Combi Service as it will need to be changed or repaired.
F19 Fault Code: This is the warning code indicating that the heater sensor of the Isofast combi boiler is not connected. In this case, the cores are either underheated or not at all. In order to resolve the sensor disconnection, the intervention of the service is required. For this, you should call Demir Döküm Technical Service.
F20 Fault Code: It is the fault code indicating that the electronic card in the Isofast combi boiler and the display card are not compatible. If the video card or electronic card has been changed, the settings may not have been made. If the device is not intervened and parts are not replaced, we can say that the electronic card is defective. You should call Demir Döküm Isofast Service and get help.
F21 Fault Code: It is the error code that appears on the combi screen when there is a problem in the circulation of the water sent by the Isofast combi to the installation and at the same time the device does not provide circulation. In this case, do not interfere with the device. Ask for help by calling Demir Döküm Combi Service.
F23 Fault Code: In Isofast combi, it is the fault code indicating that the temperature of the heating circuit, more precisely, rises faster than 50°C. In this case, as a consumer, you must reset the device. If the problem does not improve after the reset, you should call Demir Döküm Combi Service.
MİLLENİUM PLUS
F1/F4 Fault Code: In Millennium Plus combi, both F1 and F4 faults indicate ignition failure. Since the boiler does not provide ignition, it is impossible to get efficiency. In this case, you must first reset the device. If the problem is not resolved, there may be a problem in the gas valve or ionization. You should get help by calling Demir Döküm Combi Service.
F2 Fault Code: It means that there is an air failure in the Millennium Plus combi. In this case, the boiler will automatically reset itself. If the problem persists after the reset, we can say that there is a problem in the fan motor, chimney or air processor. In such a case, you cannot interfere with the device. You should call Millennium Plus Service.
F3 Fault Code: It is the fault code indicating that there is a problem in the part that transmits the plus pressure of the Milenyum Plus combi boiler from the fan motor and whether there is a problem in the waste gas to the main board, that is, in the air process. In this case, we can say that the processor may need to be replaced because it cannot be repaired. In order for the problem to be resolved, you should call Demir Döküm Technical Service.
F5 Fault Code: It is the error code indicating that the overheating thermostat, more precisely the limit sensor, has failed in the boiler. If the F5 fault code is displayed on the boiler screen, we can say that the sensor is damaged and needs replacement. You should call Demir Döküm Combi Service in order to get the necessary assistance in this regard.
F6 Fault Code: This is the error code that states that the hot water sensor in Millennium Plus combi boiler has malfunctioned. In this case, the boiler will not deliver hot water due to a problem with the hot water sensor. The consumer who has a hot water problem should call the Millennium Plus Service for a solution.
F9 Fault Code: This is the fault code indicating that there is a problem with the heating sensor in the Millennium Plus combi boiler. In this way, the combi boiler does not send heat to the cores. You should call Demir Döküm Combi Service to solve the problem.
F11 Fault Code: This error code appears on the combi screen when there is a problem with the electronic card that all the parts in the combi boiler are connected to and managed, or when the signal cannot be received. In this case, the boiler will not work at all. In this case, we can say that the card must either be repaired or replaced. You should call Demir Döküm Combi Service and get help on the subject.
F12 Fault Code: It is the error code indicating that there is a problem with the graphics card of the Millennium Plus combi boiler. When there is a problem with the video card, the card needs to be either repaired or replaced. In this case, you should call Demir Döküm Combi Service.
F13 Fault Code: It is the error code indicating that there is a problem in the main board of the Millennium Plus combi boiler. The boiler will not work because there is a problem with the main board. In this case, you should definitely call Demir Döküm Combi Service and get help for either repair or replacement of the card.
F14 Fault Code: If there is an F14 fault warning on the Millennium Plus combi screen, it means that the heating temperature is above 95°. In this case, you should get the necessary help by calling Demir Döküm Combi Service.
F15 Fault Code: This fault code means that there is a stepper motor problem in the gas mechanism of the combi boiler. Since the part called stepper motor belongs to the three-way valve group, when the combi boiler gives this fault code, your cores may also get hot when using hot water. Or there may be problems with the gas inlet. In this case, you should call Millennium Plus Service.
F16 Fault Code: It is the error code indicating that the boiler continues to ignite even though it is turned off. In this case, the faulty part is ionization. In such a case, call Demir Döküm Combi Service and ask for help.
F17 Fault Code: It is the error code indicating that the voltage coming to the boiler is lower than the required value. We recommend you to use a Regulator in this regard. You will not have any problems with voltages after the regulator.
F19 Fault Code: It is the warning code that indicates that the hot water NTC is in hot water demand and only the connection on the pipe is cut off. In this case, the hot water demand cannot be met. You should get help on the subject from Millennium Plus Service.
F20 Fault Code: This is the error code indicating that the Millennium Plus combi boiler is not compatible with the graphics card. If the display card of the device has been changed, the service settings may not have been made. In this case, you should call Demir Döküm Combi Service to make the service settings. If the video card has not been replaced, it may be faulty. For replacement or repair, you should contact Demir Döküm Combi Service.
F21 Fault Code: This is the fault code indicating that the pressure of the boiler is reduced. In this case, there is no need to call for service. You have to open the filling valve located under the combi and press the water (1.5 Bar) that the combi needs. Reset the boiler after flooding and the problem will be solved.
F22 Fault Code: This is the warning code indicating that there is more water in the boiler than it should be (1.5 Bar). In this case, check the boiler pressure and you will see that it is above 2.7 bar. You can reduce the excess water in the combi by venting from the side of the comb. Combi pressure will reach zero after the operation of air removal from the core. After this process, if you flood the combi with 1.5 Bar of water again, there will be no problem.
TRON
F1 Fault Code: The explanation of F1 fault code, which is frequently encountered in Nitron combi boiler, is that there is a problem in the limit thermostat of the combi. In short, overheating has occurred, so the combi has closed itself for use, that is, it has been blocked. In this case, you should call Nitron Combi Boiler Service and ask for help.
F2 Fault Code: F2 fault warning, which means that there is a problem in the hot water NTC connections in the boiler, you cannot get hot water. For this reason, you should call Demir Döküm Nitron Service to resolve the problem.
F4 Fault Code: If there is F4 fault code on the Nitron combi screen, it means that the combi does not ignite. In this case, either gas does not come to the boiler or there is an ionization problem. In addition, we can say that there is a problem with the gas armature. You should call Demir Döküm Combi Service in order to both detect and solve the problem.
F5 Fault Code: It is the error code indicating that there is an air flow problem. In short, we can say that the air processor of the device is defective. In this case, instead of interfering with the device, you should contact Demir Döküm Technical Service and get help.
F6 Fault Code: If F6 warning code appears in Nitron combi, it means there is a problem in the outside air sensor connection. In this case, we can say that there is a problem with the boiler’s air process or chimney sensor. You should get help on the subject from Nitron Combi Boiler Service.
F7 Fault Code: When a connection problem occurs in the sensors where the air flow is provided, this warning code appears in the Nitron combi boiler. In such cases, the device should not be interfered with, and Iron Cast Nitron Service should be called directly.
F8 Fault Code: In cases where air flow is not provided, that is, the fan motor does not function, this warning code appears on the boiler screen. The reason for this situation is that the fan motor has failed. In this case, you should call Demir Döküm Combi Service directly and ask for help.
F9 Fault Code: It is the code indicating that there is a wiring problem in the device. In this case, the cable connections may be wrong or they may be displaced. You should call Demir Döküm Nitron Service without intervening the device.
F10 Fault Code: The explanation of F10 fault code in Demir Döküm Nitron boiler is that the water of the boiler is less than the required value. In other words, if you check the boiler pressure, you will see that it is below 0.3 bar. Open the filling tap, which is mounted directly to the lower part of the combi, and press water up to 1.5 bar into the combi. If the combi still gives the same warning after the operation, turn the combi off and on again, the combi will be resolved.
F11 Fault Code: This is the warning code indicating that there is a circulation problem in the Nitron combi boiler. In this case, we can say that the boiler does not circulate the water in it. In such a case, you should call Demir Döküm Combi Service and ask for help.
F12 Fault Code: F12 fault code means low voltage in Nitron combi boiler. In cases where the mains voltage is below 165V, this error code appears on the boiler screen. In this case, our advice to you is to use a Regulator in order not to damage the boiler due to low voltage. After the use of the regulator, the boiler is not affected by the fluctuations in the voltage and there is no burning in the boiler parts. You can find information about the regulator by calling Demir Döküm Nitron Service.
SOLARİS
F0 Fault Code: This is the fault code indicating that the water pressure of the boiler is low and therefore the boiler does not provide efficiency. If you set the boiler water level to 1.5 bar, you will see that the device continues to operate.
F1 Fault Code: In cases where the boiler is overheated, the overheating thermostat, which is present, activates and protects the device. But if there is such a fault code in the combi, we can understand that this thermostat has malfunctioned. You need to contact Solaris Combi Service.
F2 Fault Code: In the F2 warning, which means hot water failure, which is one of the problems experienced in almost every combi boiler, the user cannot get hot water. Or hot water flows for an hour and does not flow for two hours. The same problem always occurs. If the sensor is replaced, the problem disappears. Service intervention is required.
F4 Fault Code: The combi must be ignited in order to provide efficiency after the ignition process. If there is an F4 fault warning in the combi, it means that the device is not igniting. In this case, it is not possible to obtain an efficiency from the combi boiler. Gas armature, Main Board, Electrodes or Ions can also be a problem. You need to call the service and ask for help.
F5/F6 Fault Code: These are the codes that indicate that there is a malfunction in the air flow. It means that the device is experiencing an air processor or chimney sensor problem. Get help by contacting the service without wasting time.
OC Fault Code: It is the code that indicates that the chimney sensor or air processor remains connected. The OC fault code is not always a code that appears on the combi. When this code is displayed, reset the boiler a few times. If not, please contact Demir Döküm Solaris Service.
CC Fault Code: It is the code indicating that the connection of the air processor or the chimney sensor has been cancelled. The cancellation of even one of these parts may cause loss of efficiency of the combi. Contact the service and ask for information about the solution of the problem.
THEME FAST
F01/F04 Fault Code: The explanation of F01 and F04 fault codes appearing on Themafast combi is that the combi does not ignite, that is, gas does not come to the combi. In this case, you should check the valves and turn the valves to the open position. Reset the boiler after opening the valves. If there is still the same warning code, then there may be a problem with the gas valve or ionization. You should call Themafast Combi Service.
F02 Fault Code: It is the fault code indicating that the process has malfunctioned due to air failure. In this case, you should contact Demir Döküm Themafast Service directly, as part replacement will be required. The device will continue to work after the procedure change.
F03 Fault Code: This is the warning code indicating that the air process horse of the boiler has malfunctioned. In this case, we can say that the device does not provide air flow. In this case, you should call Themafast Service to solve the problem.
F05 Fault Code: It is the error code indicating that there is overheating in Themafast combi. In this case, we can say that there is a problem with the limit thermostat sensor and it may need to be replaced. You should call Demir Döküm Service for help on this matter.
F06 Fault Code: This is the warning code indicating that the heater sensor is faulty in Themafast combi. In this case, sensor replacement may be required. You should call Themafast Combi Service and ask for help.
F08 Fault Code: This warning code appears on the screen when there is a fault in the installation flow water sensor in the combi. In this case, sensor replacement may be required. Only in this warning code, no information can be given without determining which sensor will change. It would be beneficial for you to contact Demir Döküm Service in order to detect and intervene in this malfunction.
F09 Fault Code: This is the warning code indicating that the sensor that measures the water pressure in the boiler is defective. You should call Themafast Combi Service for the replacement of this part.
F11 Fault Code: This is the warning code indicating that there is a main board failure in Themafast combi. The motherboard needs to be repaired or replaced. For this reason, you should get help from Demir Döküm Service.
F12 Fault Code: If F12 fault error appears in Themafast combi, it means there is a problem in the display card or control panel. In this case, you should not interfere with the device and call the Themafast Combi Service and ask for help.
F13 Fault Code: In this warning code, which means that there is a problem with the electronic card of the Themafast combi, card repair or card replacement may be required. For this case, you should get service support.
F14 Fault Code: In this warning code, which indicates that there is a sensor failure in Themafast combi, the service should come and determine which sensor needs to be changed. For this, you need to reach Demir Döküm Themafast Service.
F15 Fault Code: In this warning code, which means that there is a problem with the stepper motor of the part of the boiler that we call the three-way valve, the device does not provide efficiency. You should call Iron Casting Service as the part will need to be replaced.
F16 Fault Code: If this warning code appears on the Themafast combi screen, it means there is a problem in the gas valve. In this case, the device will not fire. Due to the fact that the device does not ignite, you cannot get heat to your cores and you cannot get hot water. In this case, you should call Demir Döküm Themafast Service and ask for help.
F17 Fault Code: It means low voltage in Themafast combi. In this case, you must first call an electrician. If there is no electrical problem, you should use a regulator. You can call Demir Döküm Service for information and assistance on this matter.
F18 Fault Code: It is the error code that we can understand that there is a problem with the video card of the device. In this case, the video card needs to be repaired or replaced. You should get relevant help from Demir Döküm Service.
F19 Fault Code: The sensor meets the hot water demand, but its connection on the pipe is not valid. In this case, we can say that there is a problem with the sensor. You should not interfere with the device and call Themafast Service.
F20 Fault Code: This is the warning code indicating that the display card of the Themafast combi and the combi are not compatible. If the device was intervened beforehand and the video card was changed, the settings may not have been made. If the device is not intervened, we can say that the video card is defective. In this case, you should call Demir Döküm Service and request assistance.
F21 Fault Code: If Themafast combi gives this warning code, it means that the pressure value of the combi is lower than the required value. In other words, the boiler pressure is below 0.3 bar. In this case, you have to flood the combi with the filling tap located under it. When the pressure value shows 1.5 bar, close the filling tap and the device will operate. If it doesn’t work, turn the boiler off and on again, that is, reset it.
F22 Fault Code: When the boiler pressure is more than necessary, more precisely, when it is above 2.7 bar, the boiler gives this warning code. If this warning code has appeared on the Themafast combi screen, you should take air from the heater on the side of the heater. After this process, there will be no problem.
VINTO
F01/F04 Fault Code: Both warning codes carry the same explanation in Vinto combi boiler. Both of these warning codes indicate that there is no ignition in the boiler. In this case, we can say that the device does not receive gas. You should check the gas valves and turn them on if they are closed. If there is no problem with the gas valves, turn the device off and on again, that is, reset it. If the problem still persists, your gas valve may also be a problem. To solve this situation, you should call Vinto Combi Boiler Service.
F2 Fault Code: This is the warning code indicating that there is an air flow problem. In this case, we can say that the air processor is defective and needs to be replaced. As a consumer, in this case, you should call Demir Döküm Combi Service directly.
F3 Fault Code: If the Vinto combi boiler repeats this warning code 3 times within 2 hours and 40 minutes, then there is a problem in the air flow and the processstat is faulty. You should contact Demir Döküm Vinto Service.
F5 Fault Code: This is the warning code indicating that there is an overheating problem in the device. In this case, we can say that the limit thermostat is faulty. You should call Demir Döküm Service and get help in this regard.
F6 Fault Code: It is the error code indicating that there is a problem in the heater circuit sensor. In this case, there is nothing you can do as a consumer. You should call Demir Döküm Combi Service as sensor replacement will be required.
F9 Fault Code: This is the warning code indicating that the sensor of the device, which is in the task of measuring the water in the heating circuit, has been damaged. In this case, the device should be seen by the technical service. You should call Demir Döküm Vinto Service.
F11 Fault Code: This is the warning code indicating that no signal can be received from the electronic card to which all the parts in the boiler are connected. In this case, we can say that the card is faulty. You should get help by calling Demir Döküm Vinto Service as it may need repair or replacement.
F12 Fault Code: This is the code indicating that no signal can be received from the video card. In this case, we can say that the video card is damaged and malfunctioning. You should call Demir Döküm Combi Service without interfering with the device.
F13 Fault Code: If F13 fault appears on the Vinto boiler screen, it means that there is a problem with the main board. In this case, the problem can be solved by either repairing or replacing the card. For this, you should get help from Demir Döküm Technical Service.
F14 Fault Code: This is the error code indicating that the water that the device is sending to the heating circuit is above 95°. If the problem continues like this, you may have a problem. For this situation, you should call Demir Döküm Service and get information and help.
F15 Fault Code: It is the error code indicating that there is a gas mechanism problem. In this case, we can say that the three-way valve stepper motor is faulty. Call Vinto Combi Service to solve the problem.
F16 Fault Code: In cases where the flame still continues even though the boiler is in the off state, the combi gives this warning code. In this case, we can say that there is a problem in the ionization or gas armature. You should call Iron Casting Service for both control and solution of the device.
F17 Fault Code: This is the warning code indicating that the voltage reaching the flat is low. The device should not operate in this way. If it continues to operate in this condition, its parts may be damaged. For this, our recommendation is to use the regulator device. After the regulator device, the voltages are balanced and the combi boiler is not damaged due to the voltage change.
F18 Fault Code: If this warning code appeared on the Vinto combi screen, it means there is a problem with the video card. You should not interfere with the device. Because in this case, the graphics card needs to be repaired or replaced. You should call Vinto boiler service and get help in this regard.
F19 Fault Code: The boiler’s sensor is not in contact with the pipe, only the sensor is in hot water request. In this case, we can say that the sensor is faulty or that its cables are broken. As a consumer, you should not interfere with the device and get help from Vinto Combi Service.
F20 Fault Code: Indicates that the combi is not compatible with the graphics card. If the graphics card has been changed before, the settings may not have been made and the device may be giving this warning code for this reason. If the problem occurred spontaneously and no action was taken on the device’s video card, it may need to be replaced or repaired. For technical support and assistance, you should call Demir Döküm Vinto Service.
F21 Fault Code: This is the warning code indicating that the water pressure in the boiler is less than necessary. In this case, what you need to do as a consumer is to increase the pressure of the boiler up to 1.5 bar with the filling tap. If the problem still persists after the procedure, reset the boiler.
F22 Fault Code: If this warning code appears on the Demir Döküm Vinto Combi screen, it indicates that the pressure of this combi boiler is higher than the required value. So if you check the combi bar level, you will see that it is above 2.7 bar. In this case, you should perform the air intake process from the side of the honeycomb. Combi pressure may drop to zero after the procedure. If you push 1.5 bar of air into the combi again, the problem will be solved.