Alfa Color Gas Boiler Error Codes Error code E01 It indicates a malfunction of the ignition system. Fault notification comes from the flame control sensor. This part analyzes the presence of a flame and stops the operation of the Alfa Color boiler in case of weak combustion of the main burner device or in the event of a gas supply interruption. Work is suspended after three unsuccessful starts. To get it working, you need to keep the reset key pressed.
Alfa Color Boiler Error Code Solutions
Gas valve failure – The gas valve is electronically controlled. This component is tested by determining the resistance and voltage values. If it is found that the readings differ from the nominal parameters, the valve should be replaced. No gas supply to the system – A valve is installed in the gas distribution device that closes the gas inflow. Based on this, a malfunction when starting the device may occur due to a blocked tap. Poor contact or no pulse detected from the flame control sensor.
Problems with the control board – When the ignition is successful, but the device still suddenly goes out, then most likely the electronics do not recognize the flame. In this case, you need to test it. Problems at the time of ignition. This circumstance occurs when the ignition does not work or there is an attenuation of the burner flame. It is necessary to check the contacts between the ignition device and the flame electrode, as well as between the control board and the gas valve. The main cause of burner flame separation is poor draft. Poor contact or no pulse detected from the flame control sensor.
Problems with the control board – When the ignition is successful, but the device still suddenly goes out, then most likely the electronics do not recognize the flame. In this case, you need to test it. Problems at the time of ignition. This circumstance occurs when the ignition does not work or there is an attenuation of the burner flame. It is necessary to check the contacts between the ignition device and the flame electrode, as well as between the control board and the gas valve. The main cause of burner flame separation is poor draft. Poor contact or no pulse detected from the flame control sensor.
Problems with the control board – When the ignition is successful, but the device still suddenly goes out, then most likely the electronics do not recognize the flame. In this case, you need to test it. Problems at the time of ignition. This circumstance occurs when the ignition does not work or there is an attenuation of the burner flame. It is necessary to check the contacts between the ignition device and the flame electrode, as well as between the control board and the gas valve. The main cause of burner flame separation is poor draft. it needs to be tested. Problems at the time of ignition.
This circumstance occurs when the ignition does not work or there is an attenuation of the burner flame. It is necessary to check the contacts between the ignition device and the flame electrode, as well as between the control board and the gas valve. The main cause of burner flame separation is poor draft. it needs to be tested. Problems at the time of ignition. This circumstance occurs when the ignition does not work or there is an attenuation of the burner flame. It is necessary to check the contacts between the ignition device and the flame electrode, as well as between the control board and the gas valve. The main cause of burner flame separation is poor draft.
Alfa Color Boiler Error Code E02
The problem with overheating of the heat exchanger of the Alfa Kalor boiler. The device is blocked. Overheating safety thermostat trips – The temperature sensor and overheating thermostat are usually located on the outlet pipe of the primary heat exchanger. The main purpose of the thermostat is to protect the boiler unit from elevated temperatures. The malfunction most often occurs due to problems with the thermostat, temperature sensor, as well as a malfunction in the main circulation circuit.
Faulty temperature sensor – An incorrect signal comes to the electronic board or the contact between the sensor and the control board is broken. The overheating thermostat is out of order – If the component is operational, but the actual overheating of the liquid is recorded, then most likely there is a problem with the circulation of the coolant in the heating circuit. Blockage of the main heat exchanger or filter element of the heating circuit (low circulation level implies high heating of the coolant). The circulation pump has broken or there is an air lock in the heating system.
Alfa Color Boiler Error Code H20
Indicates low pressure in the system. Possible reasons for this malfunction: reduced pressure of the coolant in the heating circuit. The contact between the control board and the pressure sensor is broken. Breakage of the minimum pressure switch. We recommend that you first look at the results of the pressure gauge. In many cases, the failure can be eliminated by using a make-up valve, which is installed to fill the system with coolant. When the accident reappears, there may be a water leak. The circulation pump, the main heat exchanger, the safety valve for relieving excess pressure, worn seal elements, the make-up valve and other parts can leak. A leak can be detected by inspecting the hydraulic components.
Alfa Color Boiler Error Code E03
Lack of traction. In order to ensure reliable and safe operation of the Alfa Color gas boiler, it is necessary to provide traction to remove combustion products so that they do not enter the room. The outlet of gases is controlled by automatics, and if any problems appear, the draft sensor will work, and the gas appliance will be blocked. Possible reasons why there is no draft: small size of the chimney duct, improper installation, pollution, ice on the walls. The narrowing of the chimney diameter causes insufficient draft. The length of the chimney pipe is exceeded.
We advise you to carefully study the installation instructions for the appliance and comply with all necessary requirements. A large length of the horizontal section of the flue pipe can lead to a lack of necessary draft. Damage to the draft sensor – If a vacuum occurs in the supply pipe, then you can hear a characteristic click. The contact of the pressure switch and the control board is broken, condensate in the tubes, as well as poor connection of the tubes to the pneumatic relay. Fan stopped – The fan impeller is clogged. There is no lubrication on the fan shaft, so it has low speed. The contact between the control board and the fan is broken.
Alfa Color Boiler Error Code E06
Refusal to determine the temperature by the DHW sensor. This means that the DHW temperature sensor is damaged or the temperature required for operation has increased significantly. The main factors due to which this problem may appear: the hot water temperature sensor is broken. There is no contact between the hot water temperature sensor and the electronic board. Control board failure. When the hot water temperature sensor is working and is in stable contact with the control board, but the boiler gives an error, then the control board may be defective.
Alfa Color Boiler Error Code E05
The temperature sensor in the heating circuit does not function correctly. It signals a malfunction of the temperature sensor in the heating circuit or the temperature required for operation is too high. Open circuit of the temperature sensor in the heating circuit – This malfunction occurs when the contact of the temperature sensor with the control board is broken, or the temperature value is lower than recommended. Within 5 seconds after the detection of a malfunction, the Alfa Kalor boiler should resume operating functions if the malfunction occurred spontaneously.
You need to make sure that there is no moisture on the thermal sensor connector and the control board connector. If there is no moisture, the sensor should be changed. A short circuit of the temperature sensor in the heating circuit has occurred – Such a malfunction may occur during a short circuit of the temperature sensor contacts or the temperature of the coolant is above normal. First you need to measure the resistance of the sensor. If the resistance parameters differ from the nominal ones, the temperature sensor should be changed. If replacing the temperature sensor does not help, repair the board.