Rocterm Gas Boiler Error Codes
Rocterm Gas Boiler Error Codes

Rocterm Gas Boiler Error Codes

Rocterm Gas Boiler Error Codes Sometimes your boiler may show an error code. These help to determine if there is a problem with the boiler, gas supply or heating system and how to resolve it. Some problems are easy to fix and you can carry out a few simple steps to do it yourself, while others need to be sorted out by a Gas Safe registered engineer.

Rocterm Boiler Error Code Solutions

Rocterm Boiler Error Code E2

It means that the ignition does not work. The ionization flame sensor that monitors the ignition reports a malfunction. Such a sensor-electrode recognizes the presence of a flame and stops the operation of the Rocterm boiler in case of insufficient combustion of the main burner or in case of failures in the gas supply. Work is suspended after three unsuccessful launches. To return to work, press and hold the Reset button. Gas valve failure – The action of the gas valve is controlled by the electronics board. Diagnostics of this component is carried out by measuring the resistance and voltage.

If it turns out that the values ​​do not correspond to the standard characteristics, it is necessary to change the valve for a new one. There is no gas flow to the device – A valve is installed in the gas distribution circuit, which can block the supply of gas fuel. Based on this, a malfunction when turning on the device may be due to a closed valve. Weak contact or the signal from the ionization flame sensor is not defined. The control board has a malfunction – When ignition is performed normally, but the boiler still immediately goes out, then apparently the electronics cannot see the flame. In this case, you need to check it.

Rocterm Boiler Error Code E7

The Rocterm boiler is overheated. The device stops. The overheat thermostat has switched on – The temperature sensor and the overheat thermostat are mainly located on the outlet tube of the primary heat exchanger. An important function of the thermostat is to protect the boiler unit from high temperatures. An accident can occur due to problems in the thermostat, temperature sensor, as well as in case of malfunction of the main circulation circuit.

Temperature sensor problems – The control board receives an incorrect signal or a contact is broken between the electronic board and the sensor. Faulty overheating thermostat – When the thermostat is suitable for operation, but there is a real overheating of the coolant, then apparently there is a problem with the circulation of the coolant in the heating circuit. Blockage of the primary heat exchanger or filter of the main circuit (lack of circulation causes increased heating of the liquid). Malfunction of the circulation pump or there is an air lock in the heating system.

Rocterm Boiler Error Code E1

Indicates that the system pressure indicator is low. The main factors in which this problem occurs: low water pressure in the heating circuit. Contact failure between the electronic board and the pressure switch. The pressure switch has failed. First you need to look at the readings of the pressure gauge. Usually, a failure can be eliminated using a make-up valve, which is installed in order to fill the heating system with coolant. If there was a repetition of the accident, then most likely there is a water leak. The hydraulic pump, the main heat exchanger, the excess pressure relief valve, damaged seals and gaskets, the feed valve and other parts can leak. Leakage can be found when inspecting hydraulic systems and components.

Rocterm Boiler Error Code E6

Lack of traction. For the correct and safe operation of the gas unit, it is necessary to create a draft to remove the combustion products so that they do not enter the room. The exhaust of gases is controlled by electronics, and when any problems occur, the draft sensor-relay is activated, and the device will be turned off. Possible sources of lack of draft: small size of the chimney duct, improper installation, blockage, ice on the inner wall. Limiting the diameter of the outlet channel serves as a factor in reducing thrust.

The chimney pipe is too long It is recommended that you carefully read the installation instructions for the appliance and follow all the necessary requirements. Too much horizontal flue pipe often causes a lack of draft. Malfunction with pneumatic relay-draft sensor – If a vacuum occurs in the inlet tube, you can hear the characteristic click. Lack of contact between the pressure switch and the control board, condensate in the tubes, as well as incorrect connection of the tubes to the pressure switch. Fan stopped – The fan impeller is clogged. There is not enough lubrication on the fan shaft, which is why it does not develop the required speed. Lost contact between the electronic board and the fan.

Rocterm Boiler Error Code E3

The hot water temperature sensor is not functioning properly. This situation indicates that the DHW temperature sensor is faulty or the recommended temperature has been exceeded. The main reasons due to which this malfunction appears: the temperature sensor for hot water supply is damaged. Poor contact between the electronic board and the DHW temperature sensor. Electronic board defective. If the hot water temperature sensor is intact and firmly connected to the electronic control board, but the unit displays an error, then it seems that the electronic board is not operational.

Rocterm Boiler Error Code E5

Ignition related problems. This code is issued if there is no ignition or there is an attenuation of the burner flame. It is recommended to check the connections between the ignition unit and the flame sensor, as well as between the gas valve and the board. Insufficient draft may be the main factor in flameout.

Rocterm Boiler Error Code E4

Refusal to determine the temperature by the heating system sensor. This code indicates that the temperature sensor of the heating system is broken or the operating temperature is too high. Damaged temperature sensor circuit in the heating circuit – This malfunction can occur if the contact of the temperature sensor with the electronic board is interrupted, or the temperature is lower than recommended. Five seconds after the detection of a malfunction, the Rocterm boiler will resume normal operation if the malfunction occurred by accident.

It is recommended to make sure that there is no moisture on the sensor connector and the controller connector. If there is no moisture, you need to change the temperature sensor. There is a short circuit in the temperature sensor in the heating circuit – This problem most often occurs when the temperature sensor circuit is short-circuited or the temperature value of the water is higher than the nominal value. Initially, it is recommended to measure the resistance of the sensor. If the resistance characteristics are not as required, the sensor must be replaced. If replacing the temperature sensor does not contribute to the result, repair the board.

The Rocterm boiler is in operation. This week, almost every day, the error E2 lights up. After restarting with the reset button, the device periodically starts up satisfactorily, but this is quite rare. Just recently I removed the air intake cover and it worked better. What’s wrong?

If it starts to give an error related to the chimney, you need to open the protective covers. This will help draw air out of the room. Next, check the chimney for the presence of ice and, if any, clean it. If the accident is related to combustion, you need to find out if gas is supplied to the house.

Error E4 is constantly visible on the gas boiler. Can you please tell me what she is talking about?

This code indicates to you that the temperature sensor of the heating system is damaged. It may need to be replaced.

What is the problem if the Rocterm boiler does not turn on? And the E7 error is still regularly lit. How to fix?

Such a malfunction is usually issued due to any problems in the thermostat, temperature sensor, and in addition, in case of malfunctions of the main circulation circuit. Perhaps there is overheating of the liquid in the heat exchanger. If the temperature sensor and thermostat are working, then the problem is in the electronic board. It should be changed.

Why does the device not start up and error E1 is displayed? The pressure in the system is normal, no leaks are observed. I disconnect from the mains, but the malfunction is not eliminated. What is the cause of the problem?

A fault code often occurs when the fluid pressure in the heating system decreases. In this case, it is necessary to check the pressure switch. Most likely it is defective.

The malfunction of the unit is as follows: hot water supply is turned on at a temperature of forty-five degrees. When you turn on the hot water, the burner ignites and then goes out. This cycle happens regularly. Warm water flows out of the tap, but not hot, then cold. Often an error E7 is issued. What’s the problem?

Such a code is a sign of overheating of the DHW coolant. Perhaps the heat exchanger is clogged with debris, or the thermostat is not set correctly.

The following error has occurred. during ignition, the unit displays error E5. When you restart it, it turns on, but as soon as the gas burner starts to work, you can hear incomprehensible clicks, and after that an error is displayed. I replaced the ionization electrode, cleaned the water flow sensor, removed the earth from the plug, but there are no improvements. What happened?

This error occurs for three reasons. Breakage of the ignition electrode. Difficulties with gas supply. Damaged electronic board.

The unit has autonomously interrupted operation and issues an E1 code. What to do?

There is no water in the device or the pressure switch sensor is broken. First add water to the heating circuit.

The gas appliance stops working with error E6. Cleaned and purged – no result. How to be?

This situation indicates unsatisfactory draft, and we advise you to check the flue gas system. Presumably the membrane is stuck. In another case, we advise you to contact a specialist for a detailed check of the gas boiler with further testing.

The house has a Rocterm boiler. Error E3 began to come out. The unit itself is functioning, the temperature of the coolant is set by a manual switch. When it was mounted, it probably overheated, because the automatic temperature mode was turned on. There is no outdoor air temperature sensor. What is the problem?

We assume that there is damage to the DHW temperature sensor. In some cases, the control board is faulty.

The boiler performs functions for approximately 4-5 minutes, then the burner goes out, and error E6 comes out. It burns for no more than a minute, the burner turns on again, and the device works normally for another 3-4 minutes, and so many times. This code, based on the instruction manual, indicates that the sensor is triggered by draft, however, the chimney channel is without blockages, combustion products are discharged normally. Can you help me figure out what is causing the problem?

In your case, the probable sources of lack of traction may be: malfunctions of the pressure switch-traction sensor. Poor contact between the pneumatic relay sensor and the electronic board. The presence of condensate, as well as poor connection of the tubes to the pneumatic relay. There was a problem with the fan. It may be operating at low torque.

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