Hydrosta Gas Boiler Error Codes To restart the boiler, turn the mode switch on, wait five to six seconds, then return it to the desired position. After this it will start on its own. If normal operation cannot resume, call the service technician.
Hydrosta Boiler Error Code Solutions
Hydrosta Boiler Error Code E5
It indicates that the ignition is not working. Fault notification comes from the flame monitor. Such a part detects the presence of a flame and blocks the working functions of the Hydrosta gas boiler with limited combustion of the main burner or during interruptions in the gas supply. Blocking occurs after three unsatisfactory launches have been completed. To resume operation, press and hold the reset button.
Gas valve failure – The gas valve is electronically controlled. Diagnostics of this element is carried out by determining the magnitude of voltage and resistance. If it is found that the readings differ from the standard characteristics, it is required to replace the valve with a working one. No gas inflow to the unit – There is a valve in the gas distribution circuit that shuts off the gas inflow. As a result, a failure at the start of the unit may occur due to a closed tap. Poor contact or no signal from the ionization flame sensor.
Malfunction of the electronic control board – When the ignition cycle is performed normally, but the boiler suddenly went out, then most likely the electronics cannot see the flame. In this case, you need to test it. Ignition problems. This situation can occur when the ignition does not work or there is a burner flameout. It is recommended to check the connections between the ignition device and the flame sensor, and also between the gas valve and the board.
One of the factors of flame failure is the lack of thrust. Malfunction of the electronic control board – When the ignition cycle is performed normally, but the boiler suddenly went out, then most likely the electronics cannot see the flame. In this case, you need to test it. Ignition problems. This situation can occur when the ignition does not work or there is a burner flameout. It is recommended to check the connections between the ignition device and the flame sensor, and also between the gas valve and the board. One of the factors of flame failure is the lack of thrust.
Malfunction of the electronic control board – When the ignition cycle is performed normally, but the boiler suddenly went out, then most likely the electronics cannot see the flame. In this case, you need to test it. Ignition problems. This situation can occur when the ignition does not work or there is a burner flameout. It is recommended to check the connections between the ignition device and the flame sensor, and also between the gas valve and the board. One of the factors of flame failure is the lack of thrust. when the ignition does not work or there is a burner flameout.
It is recommended to check the connections between the ignition device and the flame sensor, and also between the gas valve and the board. One of the factors of flame failure is the lack of thrust. when the ignition does not work or there is a burner flameout. It is recommended to check the connections between the ignition device and the flame sensor, and also between the gas valve and the board. One of the factors of flame failure is the lack of thrust.
Hydrosta Boiler Error Code E3
Overheating of the Hydrosta boiler heat exchanger. The device is blocked. The overheating protection thermostat is activated – The overheating thermostat, as well as the temperature sensor, are mainly located on the outlet pipe of the main heat exchanger. The main task of the thermostat is to protect the apparatus from an excessive increase in temperature. Failure can occur due to problems in the thermostat, temperature sensor, and in addition, if the main circulation circuit malfunctions.
Faulty temperature sensor – An incorrect signal comes to the electronic board or the contact between the control board and the sensor is broken. Damage to the overheating thermostat – When the thermostat is OK, although a real overheating of the coolant is detected, then there is probably a problem with the circulation of the coolant in the heating circuit. Clogged main heat exchanger or heating circuit filter (lack of circulation suggests increased heating of the liquid). Malfunction of the circulation pump or an air blockage has formed in the heating system.
Hydrosta Boiler Error Code E1
Is a sign of low pressure in the system. The main reasons contributing to the appearance of this malfunction: low water pressure in the heating circuit. Contact failure between control board and pressure sensor. Breakage of the minimum pressure switch. You must first check the results of the pressure gauge. Usually, the problem is eliminated by using a make-up valve, which is installed to fill the system with coolant. If the problem recurs, there may be a water leak.
Hydrosta Boiler Error Code E2 / E4
Lack of traction. For stable and safe operation of the Hydrosta boiler, it is necessary to create a draft for the removal of combustion products so that they do not enter the room. The smoke output is monitored by electronics, and when any malfunctions occur, the draft sensor-relay will work, and the boiler will stop working. The main factors for the lack of traction are: narrowed diameter of the flue duct, design flaw, clogging, icing of the inner wall. The narrowing of the outlet channel leads to weak draft.
The chimney pipe is too long It is necessary to carefully read the instructions for installing the boiler and follow all the necessary requirements. A very long horizontal outlet of the chimney pipe can cause a lack of necessary draft. Draft sensor failure – When a vacuum occurs in the inlet pipe, then you can catch a characteristic click. There is no contact between the control board and the draft sensor, there is condensate, as well as incorrect fastening of the tubes with the pneumatic relay sensor.
Hydrosta Boiler Error Code U8
Failure of the DHW temperature sensor. This indicates that there is a malfunction of the temperature sensor in the DHW circuit or the recommended temperature has increased significantly. The main factors contributing to the appearance of this problem: the temperature sensor for hot water supply is out of order. Disruption of contact between the control board and the DHW temperature sensor. The electronic board of the Hydrosta boiler is defective. If the DHW temperature sensor is working and is reliably connected to the electronic board, but the unit displays an error, then, apparently, the control board is not operational.
Hydrosta Boiler Error Code E8
The temperature sensor on the heating system does not work correctly. This indicates that there is damage to the temperature sensor in the heating circuit or the temperature required for operation is too high. The temperature sensor circuit in the heating circuit is damaged – This malfunction occurs if the connection between the temperature sensor and the electronics board is broken, or the temperature is below normal. Within 5 seconds following the detection of an alarm, the Hydrosta boiler must resume trouble-free operation if the failure occurred spontaneously.
It is recommended to make sure that there is no moisture on the temperature sensor connector and the controller connector. If there is no moisture, it is recommended to replace the temperature sensor. The appearance of a short circuit of the temperature sensor in the heating circuit – This malfunction can occur when the contacts of the temperature sensor are short-circuited or the water temperature is much higher than required. First you need to measure the resistance of the temperature sensor. If the resistance values do not match the required values, it is recommended to replace the temperature sensor. When replacing the temperature sensor does not give the desired result, change the electronic board.
Hydrosta Boiler Error Code U0
boiler needs to be restarted.
Hydrosta Boiler Error Code EE
Fan failure – The fan impeller is clogged. There is no lubrication on the fan shaft, so it cannot develop the required speed. Contact failure between the fan and the electronic board.
Hydrosta Boiler Error Code E9
There is a water leak. The circulation pump, primary heat exchanger, safety valve, damaged gaskets, make-up tap and other parts can leak. A leak can be found by visual inspection of the hydraulic components.