Thermona Gas Boiler Error Codes Error code E01 It indicates a failure of the ignition mechanism. The flame ionization sensor signals a device failure. This element detects the presence of a flame and interrupts the operation of the Thermon boiler in case of weak combustion of the main gas burner device or in the event of a gas supply interruption. Functions are interrupted after three unsatisfactory starts. To resume the workflow, press and hold the Reset button. Gas valve failure – The gas valve is controlled by an electronic board.
Thermona Boiler Error Code Solutions
Diagnostics of this element is carried out by determining the value of resistance and voltage. If the values differ from the nominal characteristics, the valve must be replaced. No gas flow to the unit – A valve is located in the gas distribution device, which can close the supply of gas fuel. As a result, a failure at the start of the unit may occur due to a closed valve. Poor contact or no pulse detected from the flame ionization sensor. Faulty control board – If the ignition works fine, but the appliance immediately goes out, then the control board is probably unable to detect the flame. Therefore, it should be tested. Incorrect ignition.
This circumstance can be issued when the ignition does not work or the flame breaks off. It is necessary to inspect the contacts between the ignition mechanism and the flame sensor, and also between the board and the gas valve. The main cause of flameout may be poor draft. Faulty control board – If the ignition works fine, but the appliance immediately goes out, then the control board is probably unable to detect the flame. Therefore, it should be tested. Incorrect ignition. This circumstance can be issued when the ignition does not work or the flame breaks off. It is necessary to inspect the contacts between the ignition mechanism and the flame sensor, and also between the board and the gas valve.
The main cause of flameout may be poor draft. Faulty control board – If the ignition works fine, but the appliance immediately goes out, then the control board is probably unable to detect the flame. Therefore, it should be tested. Incorrect ignition. This circumstance can be issued when the ignition does not work or the flame breaks off. It is necessary to inspect the contacts between the ignition mechanism and the flame sensor, and also between the board and the gas valve.
The main cause of flameout may be poor draft. It is necessary to inspect the contacts between the ignition mechanism and the flame sensor, and also between the board and the gas valve. The main cause of flameout may be poor draft. It is necessary to inspect the contacts between the ignition mechanism and the flame sensor, and also between the board and the gas valve. The main cause of flameout may be poor draft.
Thermona Boiler Error Code E06
Overheating of the Thermon boiler heat exchanger. The device is blocked. Overheating thermostat has tripped – The temperature sensor and overheating thermostat are usually located on the outlet pipe of the main heat exchanger. The main task of the thermostat is to ensure the safety of the apparatus from an excessive increase in temperature.
An emergency situation may occur due to problems with the thermostat, temperature sensor, as well as in case of difficulty in the operation of the main circulation circuit. Temperature sensor failure – An incorrect signal is received on the control board or the contact between the sensor and the electronic board is broken. Overheating thermostat failure – If it is serviceable, although there is an actual overheating of the liquid, then, apparently, there was a violation of the circulation of the coolant of the main circuit. Clogged main heat exchanger or heating circuit filter element (insufficient circulation indicates an increased heating temperature of the liquid). Damage to the circulation pump or there is an air blockage in the heating system.
Thermona Boiler Error Code E02 / E12 Informs
that the system pressure indicator is lowered. The main factors due to which this malfunction occurs: a decrease in the pressure of the coolant in the heating circuit. The contact between the pressure switch and the control board is broken. The pressure switch has failed. First you need to check the values of the pressure gauge. As a rule, the problem can be eliminated by using a make-up tap, which is needed to add coolant to the heating system. When the failure occurs again, there is probably a fluid leak present. The hydraulic pump, primary heat exchanger, relief valve, worn seal elements, make-up valve and other parts can leak. Leakage can be detected by inspecting hydraulic components and connections.
Thermona Boiler Error Code E08
Weak traction. In order to ensure reliable and safe operation of the Thermona gas boiler, it is necessary to provide draft to remove exhaust gases so that they do not enter the living quarters. The outlet of gases is controlled by automation, and when some malfunctions appear, the thrust sensor-relay turns on, and the gas appliance stops working. The main factors that contribute to the lack of draft are: small size of the flue duct, incorrect design, blockage, icing of the inner wall. Restricting the diameter of the chimney can cause a weakening of the draft. The flue pipes are too long It is recommended to carefully read the operating instructions for the gas appliance and follow all the necessary requirements.
A very long horizontal outlet of the chimney leads to a weakening of the required draft. Pressure switch – draft sensor is broken – When a vacuum is created in the inlet tube, a soft click will be heard. The contact between the electronic board and the pressure switch-draft sensor is broken, there is condensate, as well as incorrect connection of the tubes to the pneumatic relay. Fan problems – The fan impeller is clogged. There is no sufficient lubrication on the fan shaft, so it does not develop the required speed. There is no contact between the fan and the control board. accordingly, it does not develop the necessary speed. There is no contact between the fan and the control board. accordingly, it does not develop the necessary speed. There is no contact between the fan and the control board.
Thermona Boiler Error Code E05
The hot water temperature sensor is not functioning properly. This indicates that the DHW temperature sensor is defective or the operating temperature has increased significantly. Probable causes influencing the formation of this malfunction: the hot water temperature sensor is damaged. The contact between the electronic board and the DHW temperature sensor is broken. Control board failure. When the DHW temperature sensor is in good condition and reliably contacts the electronic board, although the device displays an error, then, apparently, the electronic board is faulty.
Thermona Boiler Error Code E04
The heating system temperature sensor is not working properly. This code indicates that the temperature sensor of the heating system is damaged or the operating temperature has increased greatly. The temperature sensor circuit in the heating circuit is damaged – This problem can occur if there is no connection between the temperature sensor and the control board, or the temperature is much lower than required. Five seconds after the failure is detected, the Thermon boiler will resume normal operation if the failure occurred by accident. It is recommended to check that there is no moisture on the sensor connector and the controller connector. If there is no moisture, it is necessary to change the sensor.
The appearance of a short circuit in the temperature sensor of the heating circuit – This situation occurs after a short circuit in the temperature sensor circuit or the value of the liquid temperature is higher than recommended. First, it is recommended to measure the resistance of the sensor. If the resistance characteristics differ from the standard, it is recommended to replace the sensor. If installing a new sensor does not help, change the controller.