Motan Gas Boiler Error Codes boiler error codes can be a nuisance, but it is often relatively easy to fix your alpha boiler once you check the fault code being displayed on the control panel electrode. From water pressure problems to a sensor fault, issues with flow sensor, flue sensor, or even heat exchanger, we will run you through some common boiler fault types, how to check them and fix them. Read on below to find out everything about boiler error codes and how to check them in boilers.
Motan Boiler Error Code Solutions
Motan Boiler Error Code E2
It indicates a failure of the ignition mechanism. This is reported by the ionization flame sensor that controls the ignition. Such an element recognizes the presence of a flame and blocks the operation of the Motan boiler during incomplete combustion of the main gas burner device or in case of gas supply problems. Blocking occurs upon completion of 3 unsuccessful starts. To return to work, you need to hold down the reset key. Gas valve failure – The action of the gas valve is controlled by the electronics board. This component is tested by measuring voltage and resistance.
If it is determined that the values do not correspond to the nominal characteristics, the valve must be replaced. There is no gas flow to the device – A valve is located in the gas distribution circuit that closes the gas supply. Based on this, a malfunction at the time of starting the unit may appear due to a closed tap. Weak contact or no signal detected from the ionization flame sensor. Problems with the control board – If the ignition cycle occurs normally, but the device suddenly goes out, then apparently the electronics cannot detect the flame. Based on this, it is required to check it. Ignition is not performed.
This code may occur if there is no ignition or if the flame breaks off. It is recommended to inspect the contacts between the ignition unit and the flame sensor, and also between the board and the gas valve. The main factor in the failure of the flame may be a lack of thrust. Problems with the control board – If the ignition cycle occurs normally, but the device suddenly goes out, then apparently the electronics cannot detect the flame. Based on this, it is required to check it. Ignition is not performed. This code may occur if there is no ignition or if the flame breaks off. It is recommended to inspect the contacts between the ignition unit and the flame sensor, and also between the board and the gas valve.
The main factor in the failure of the flame may be a lack of thrust. Problems with the control board – If the ignition cycle occurs normally, but the device suddenly goes out, then apparently the electronics cannot detect the flame. Based on this, it is required to check it. Ignition is not performed. This code may occur if there is no ignition or if the flame breaks off. It is recommended to inspect the contacts between the ignition unit and the flame sensor, and also between the board and the gas valve.
The main factor in the failure of the flame may be a lack of thrust. It is recommended to inspect the contacts between the ignition unit and the flame sensor, and also between the board and the gas valve. The main factor in the failure of the flame may be a lack of thrust. It is recommended to inspect the contacts between the ignition unit and the flame sensor, and also between the board and the gas valve. The main factor in the failure of the flame may be a lack of thrust.
Motan Boiler Error Code E8
Overheating of the Motan boiler heat exchanger. The device is blocked. The overheating thermostat is activated – The temperature sensor and the overheating thermostat are mainly installed on the outlet pipe of the primary heat exchanger. An important function of the thermostat is to protect the boiler unit from unnecessary temperature rise. Failure may occur due to problems with the thermostat, temperature sensor, and in addition, if the main circulation circuit fails.
Temperature sensor failure – The control board receives an incorrect signal or the contact between the sensor and the control board is broken. Damaged overheating thermostat – If the sensor is operational, although an actual liquid overheating is detected, then there may be a problem with the circulation of the coolant in the heating circuit. There is a blockage in the primary heat exchanger or the filter element of the heating circuit (low circulation level implies a high heating temperature of the coolant). There is a problem with the circulation pump or there is an air lock in the heating system.
Motan Boiler Error Code E1
Indicates that the system pressure level is low. Probable causes that affect the formation of this problem: low coolant pressure in the heating circuit. The contact between the electronic board and the pressure switch is broken. Pressure switch failure. First of all, you need to look at the pressure gauge values. Usually the problem is eliminated with the help of a feed valve, which is installed to fill the coolant into the system. When the failure repeats again, then most likely there is a fluid leak. The hydraulic pump, primary heat exchanger, emergency overpressure relief valve, worn gaskets, make-up valve and other parts can leak. Leakage can be detected by inspecting hydraulic components and connections.
Motan Boiler Error Code E5
Poor traction. For reliable and safe operation of the Motan gas boiler, it is necessary to provide 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 will work and the device will be blocked. Probable reasons affecting the lack of draft: small-sized diameter of the smoke duct, inaccuracy during installation, clogging with dirt, ice on the inner wall. Limiting the diameter of the flue duct causes insufficient draft.
The flue pipes are too long We advise you to carefully read the instructions for use of the gas boiler and check that the mandatory requirements are met. A very long horizontal outlet of the chimney pipe leads to the absence of the necessary draft. Malfunction with pneumatic relay-draught sensor – If a vacuum is formed in the inlet tube, a weak click will be noticeable. The contact of the pressure switch and the control board is broken, condensate in the tubes, as well as incorrect connection of the tubes to the pressure switch.
Damaged fan parts – The fan impeller is clogged. There is no lubrication on the fan shaft, so it does not develop the required speed. There is no contact between the electronic board and the fan. accordingly, it does not develop the necessary speed.
Motan Boiler Error Code E4
The temperature sensor for hot water supply is not functioning correctly. This indicates that the DHW temperature sensor is defective or the recommended temperature is too high. The main factors in the appearance of this malfunction: the temperature sensor for hot water supply is out of order. There is no contact between the electronic board and the DHW temperature sensor. Control board failure. When the DHW temperature sensor is operational and properly contacts the electronic control board, but the unit displays an error, then it looks like the electronic control board is faulty.
Motan Boiler Error Code E3
The heating circuit temperature sensor is not functioning properly. This situation indicates that the heating circuit temperature sensor is damaged or the operating temperature has increased significantly. An open in the temperature sensor circuit in the heating circuit – This malfunction can occur when the temperature sensor is not communicating with the electronic board, or the temperature value is much lower than required. After 5 seconds following the detection of a malfunction, the Motan boiler will restore normal operation if the malfunction occurred spontaneously. It is recommended to check that there is no moisture on the temperature sensor connector and the controller connector.
If there is no moisture, it is necessary to change the temperature sensor. There is a short circuit in the temperature sensor in the heating circuit – This failure occurs during a short circuit in the temperature sensor circuit or the temperature value of the liquid is much higher than required. The first step is to measure the resistance of the temperature sensor. If the resistance characteristics differ from the standard, the sensor should be replaced. If replacing the temperature sensor does not contribute to the result, change the controller.