Worcester Boiling Fault Codes: Detailed Review!

Worcester Bosch, a large hot water appliance manufacturing and heating company, is known for its high efficiency and customer appreciation. In this article, we talked about the error codes of Worcester brand devices and models, why your device's instrument panel is flashing, how to clear the error codes and how to fix the EA error code.

We, as Zara Heating, serve our valuable users in the field of heating with our years of experience and our expert team. If you are not satisfied with our services, we do our best to satisfy you, our valued users!

What are the Fault Codes on a Worcester Boiler?

The most preferred Worcester boilers are Greenstar 8000, Worcester 4000, Greenstar CDi Highflow, Greenstar CDi Compact, Greenstar CDi Classic Regular, Greenstar CDi Fi Regular, Greenstar I System 27/30, Greenstar I Combi and System 9/24, Greenstar Heatslave 11 Let's take a look at the most common error codes for models, Greenstar Ri and GB162.

Error Codes of Worcester Greenstar 8000 Models

The error codes we will indicate here include the sub-models of the Worcester Greenstar 8000 model, Greenstar 8000 Life System boiler, Greenstar 8000 Life & Style Combi boiler, Greenstyle 8000 Style System and Greenstar 8000 Life boiler models. Now, let's examine these error codes together.

• The 1017 W code is an error code that refers to water pressure that is well below normal. In this case, water must be added to your boiler. Otherwise, your combi will not work properly.
• 1065 B code is a code that shows that the pressure sensor of your boiler does not work properly, that is, it is defective. When your pressure sensor is faulty, your boiler may not be able to show you the correct pressure values ​​and this may cause more serious problems.
• If you get the error code 1076 W, it refers to a failure to receive a signal from your temperature sensor. In this case, check your temperature sensor and depending on the error, you may need to replace the connecting cable, the control unit or the temperature sensor itself.
• Error code 2970 B refers to an above-normal rate of pressure drop going on in the existing heating system.
• The 2971 B error code indicates that the system has too low pressure. In this case, the system must be ventilated, or water must be added until the pre-set pressure value is reached. However, since the problem may also be in the cable going to your pressure sensor, it is useful to check it.

Error Codes for Worcester 4000 Model

This model has only two error codes and they are easily understandable codes.

• The first of the error codes we will talk about, the 1021 error code, refer to your temperature sensor malfunctioning. In this case, if you turn your boiler off and then on again, the problem will disappear.
• Another error code, 224, is a software problem and when this is encountered, you should seek help from Worcester technical service to reset the boiler.

Error Codes of Greenstar CDi Highflow Model

• The first error code we will talk about, A1, refers to the pump being dry or air. If this situation is encountered, the system pressure should be checked.
• Another error code, F7, refers to the flame detection condition after turning off the device.
• The FA error code refers to the flame detected after the gas was cut off.
• The EA error code is the situation where the flame is not detected, if this situation is encountered, help from a gas safe engineer should be sought.
• The last error code we will talk about, FD, mentions that although the reset button has been pressed, it must be pressed again.

Error Codes of Greenstar CDi Compact Model

• The first error code we will talk about, the EA 227 code, refers to the situation where the flame cannot be detected or there is no flame signal while your device is operating. When this situation is encountered, support from a gas safe engineer should be sought.
• The FD 231 error code refers to a power outage or failure of the device to receive power. Checking the networks will probably help you figure out the source of the problem.
• If you get the D4 271 error code, it indicates that the temperature difference between the flow and the safety sensor is greater than normal.
• The EA 227 error code, on the other hand, refers to the inability to detect ionization after ignition.
• The last code we will talk about, No Code 212, refers to safety or a very rapid increase in flow temperature. In this case, it is in your best interest to get technical support.

Error Codes of Greenstar CDi Classic Regular Model

The error codes of the Greenstar CDi Classic Regular model are the same as the error codes of the Greenstar CDi Fi Regular model.

• The first error code we will talk about in this model, C6, mentions that the fan speed of the device is lower than normal. This may cause permanent damage to your device.
• The E2 error code mentions that the NTC sensor of the central heating flow is faulty.
• The E9 error code refers to the activation of the safety temperature limiter in the district heating flow.
• The B1 error code refers to the "Code plug not detected" error.

Error Codes of Greenstar I System 27/30 Model

• The first error code we will talk about, the C6 215 error code, indicates that the fans of the device are running at an excessive speed, while the C7 214 error code is that the fans of the device are not working. If you encounter one of these error codes, you should get technical support as soon as possible, otherwise, permanent damage may occur to your device.
• The C1 264 error code refers to the airflow stopping while your device is running.
• The EA 227 error code refers to the inability to detect the flame or the loss of the flame signal while your device is operating. In this case, you need to get technical support.
• If you get error code D1 240, it tells you that the rotation sensor is shorted.

Error Codes of Greenstar I Combi and System 9/24 Boiler Model

• The C7 214 error code, which is the first of the error codes we will talk about in this model, mentions that the fans of your device do not work during startup. In this case, the connector of the fan harness usually needs to be checked.
• If you are getting the C4 273 error code, your device has been temporarily blocked because the fan has been running continuously for the last 24 hours. If you encounter this situation, you do not need to worry, it is to your benefit to be aware that the blockage will be lifted after a while.
• If you get the A8 362 error code, it indicates a low mains voltage error. In this case, it would be in your best interest to check your electrical networks.
• F0 258 error code indicates that the control box or heat control module is faulty.

Error Codes of Greenstar Heatslave 11 Model

• The first error code we will talk about for this model, E9210, refers to the Maximum temperature thermostat or air pressure switch being activated. Before resetting your device, you need to reset the overheating thermostat or air pressure switch.
• Another error code we will talk about for this model is E5218. This code mentions that the flow temperature is well above normal.
• Another error code, E5332, says that the primary flow has exceeded 105°C, so the primary sensor is getting too hot.
• If you are getting the error code 9A360, it indicates that you are using the wrong HCM for the device variant and therefore you need to replace it with the correct HCM.

Error Codes of Greenstar Ri Model

• The error codes of this model are much more understandable. It consists of words and phrases that briefly tell the user what the problem is. The first of these is the “No light” error code. This warning tells users that there is no power in the control panel of the device.
• The Slow Flash error is the ignition lock or overheating of the heat exchanger. You can tell what the problem is, by the way, the light flashes.

Error Codes of Model GB162

• The first code we will talk about the error codes encountered in this model is the 208 This code indicates that your device is in chimney cleaning mode.
• Another code, 204, is a code that indicates that the boiler is on standby and that the current temperature value is higher than the calculated boiler temperature.
• The C6 216 code indicates that the fan speed of your device is far below normal. In this case, it is important to contact technical service and get support to prevent permanent damage to your device in the long run.
• The EA 234 code indicates that the contacts of the gas valve have been cut, and the EA 269 code indicates that the ignition device has been ignited for longer than it should.

Why is My Worcester Boiler Flashing?

The flashing of your device's light can have many meanings. Sometimes it talks about a problem encountered in your device, and sometimes it indicates the mode your device is in (for example, chimney cleaning mode). If there is a code on the flashing part of your device, you should learn the meaning of that code and, if necessary, contact the authorized service and get technical support. Otherwise, permanent damage may occur to your device, your device may work out of order, and you may not notice it. Therefore, when the light starts to flash on the instrument panel of your device, you should learn the meaning of it, it will be to your advantage.

How Do I Clear the Error Code on My Worcester Boiler?

First of all, you should learn the meaning of the error code on the instrument panel of your device. For this, you can check the user manual of your device, search for the error code on the internet, or directly call the technical service and ask.

If your error code is due to a simple reason that you can solve and does not require technical support, the error code will disappear from your screen when you solve the problem. If the reason for the code in question requires technical knowledge or different equipment, you should get technical support. If you try to solve it yourself without being sure, you can cause much bigger problems on your device. After the technical support team comes and solves the problem, the error code will go from the instrument panel of your device.

In some cases, the meaning of error codes on the instrument panel may indicate that your device is in the maintenance phase. After the said maintenance process is completed, the current error code will be gone from the instrument panel of your device.

How Do I Fix the EA Error on My Worcester Boiler?

If this error code appears on your instrument panel, it indicates that there is a problem with the flame system of your device, probably your device cannot detect the flame. In this case, you should call technical service as soon as possible and ask for support. The support team will come and solve your problem as quickly as possible. After the Gas safe engineers solve your problem, the EA error code will go out from your device's dashboard. When you encounter such a situation, if you do not have the necessary technical knowledge, you should never try to solve the problem yourself. Otherwise, you can cause huge problems, so you need to get support from an expert.

Based on our decades of experience in the industry, we can say that we, as Zara Heating, do our best for our valuable users, both in the field of device sales and information. We are ready to do our best for the satisfaction of our valued users! If you want to get more detailed information, you can review our website or call us directly.

Learn about boiler replacement process also!