Do you see a flashing blue light from your Worcester boiler?
It is possible that your boiler is not working properly; however, there is no reason to panic, even though it is likely that an old boiler is costing you far more on your gas bill than it should!
This is not the end for your Worcester Bosch Greenstar boiler, and the error code is usually found with the blue flashing light, and consequently, it should be possible to identify the error code and correct it with a certified gas engineer.
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Worcester boiler blue light flashing – how to fix it?
The most common error code to accompany the flashing light in Worcester Bosch boilers is “The Error Code EA”.
If gas is not being supplied, your boiler will display this code, and common gas supply problems can be caused by many things, including:
- Blockages of the flue
- Condensate pipe blockages.
- A faulty ignition electrode.
- Faulty flame sensor
- Gas leaks
- Low gas pressure
- Low boiler pressure
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Does the blue flashing light on a Worcester Bosch Greenstar boiler mean I need a new one?
Before you jump to conclusions about the blue flashing light and start buying a new boiler, check the operation of any other gas appliances in your house.
If they work well, there should be no problem with the mains gas supply; therefore, if your boiler is the problem, it could be a faulty gas valve
Boiler repairs can be dangerous and you need a highly trained heating engineer to fix a gas boiler.
It is important to immediately turn off the boiler and call a Gas Safe engineer, whenever Worcester Greenstar boilers problems occur.
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What does a flashing blue light on a Worcester boiler mean?
Gas leaks – Error Code EA
– call the emergency gas line on 0800 111 999
Call a heating engineer immediately if you find the Worcester blue light flashing and you think you have a gas leak.
Gas leaks may also cause flame loss, which in turn will trigger the Error code EA, which will be accompanied by a blue flashing light. Gas leaks can also lead to the ignition electrode failing in modern boilers.
We recommend that you inspect your unit regularly for gas leaks as a precautionary measure, as it is common knowledge that gas leaks can be dangerous and easily lead to an explosion.
You should immediately turn off your boiler and shut off the gas supply; therefore, if there is even a trace of a leak, evacuate the area, call a Gas Safe Engineer, and await an emergency boiler installation.
Flue Blockages – Error Code EA
During its operation, the gas boiler creates the gases.
Properly fitted flues are special pipes that redirect waste gases away from your boiler.
These gases are dangerous and should be evacuated from your home, which is why your Worcester boiler will display an EA error code immediately before it stops.
Certified heating engineers will inspect the flue pipes to ensure they are free from clogs and damage, and the engineer will inspect vertical flues more susceptible to debris and leaves.
A modern Worcester Bosch boiler or heating system has a flue guard that prevents blockages, and the gas engineer can install one if your boiler doesn’t have one.
If you see the EA error code, always check the manual and contact a Gas Safe engineer as soon as possible.
Condensate pipe blockages – Error Codes EA or D5
Condensate pipes act as a conduit for acidic wastewater to be diverted away from the boiler as your boiler produces acidic water byproducts of its operations, just like other waste gases.
You may see the error code EA of D5 for this problem.
Condensate pipes are standard equipment on all condensing boilers. Condensate pipes are likely to be present in boilers manufactured after 2005.
Winter storms are the most dangerous time for condensate pipes. The cold can freeze pipes and cause a blocked frozen condensate pipe. You can resolve the problem by pouring warm water into the frozen area.
Condensate pipes may also fail under other conditions. If you are unsure of the problem, it is best to contact a professional.
The Heating and Hotwater Industry Council has made new regulations regarding external condensate pipes.
All boiler condensate pipes should be terminated internally into a soil stack by January 2021.
This is a safety measure that protects condensate pipes against the winter season.
Discuss with the engineer what steps are required to convert external condensate pipes to internal ones.
A faulty ignition electrode
An ignition electrode is essential for starting the boiler gas to ignite once it has been released into its combustion chamber.
Your Worcester boiler will display an error code EA and a flashing blue light if the ignition electrode is damaged. It will also stop all operations.
Don’t worry. The boiler will stop all operations from protecting you and your unit from further damage. Boiler gas can accumulate in the combustion chamber, triggering a boiler explosion if it does not stop.
A gas engineer will test your boiler’s ignition electrode. A replacement is necessary if the ignition electrode is defective.
Problems with the flame sensor
A Printed Circuit Board controls most gas boilers, including Worcester Bosch boilers. It acts as your boiler’s brain.
It will shut down the gas supply immediately if it does not sense that there is a flame. The blue light will then flash and display the Error Code EA.
The engineer will also test the flame sensor to ensure it is working properly. It is difficult to repair flame sensors. Most likely, the engineer will have to replace it.
Low boiler pressure
Boiler pressure differs from gas supply pressure.
This refers to the pressure of hot water flowing inside your boiler. Unlike all other causes, this error code will cause your boiler to display Error Code E207.
Low boiler pressure doesn’t have to be a problem. It is possible to solve it.
You first need to check the pressure gauge on your boiler. To ensure that the boiler can operate properly, it should be at least 1.5 bar. Your boiler may be experiencing low pressure if it is reading below 1 bar.
Although pressure loss is an inevitable problem that will develop over time, heating engineers should inspect the boiler system for potential leaks.
Low gas supply
The boiler needs a constant supply of gas at the right pressure. Low gas pressure will not allow the flame to heat the water. Your gas boiler will display an error code along with a flashing blue light as soon as the flame stops.
This problem could occur after you have upgraded your Worcester boiler unit. You might also have this problem if you don’t upgrade the pipe system.
Worcester Greenstar boiler service mode
This is a good sign. Your boiler may be in service mode if the blue light does not pulsate and doesn’t display an error code.
It is possible that engineers have just serviced the boiler, and it was left in this mode. The service switch could also have been accidentally activated by someone. You will need to reset a Worcester boiler in such an instance.
How do you reset your Worcester boiler?
Sometimes, your Worcester boiler requires a quick reset to get it back to normal.
You might be able to save money and do it yourself if you are lucky. We strongly recommend against resetting a boiler with an Error Code.
Things could get worse if you don’t take care.
Wait until an engineer inspects your boiler and can reset your Worcester boiler
You’ll first need to find the “reset button” or setting. Worcester boilers are available in many models and designs. We recommend that you verify the location using the user’s manual.
Once you have located the button, press it for three seconds and then release it to start the reset process.
Some models also have the “reset” setting on their temperature dials. The dial should reach the “reset” mark. It will stay there for three seconds before it goes back to its original setting.
Worcester boiler flashing blue light conclusion
A Worcester boiler flashing blue light indicates a problem with your Worcester Bosch boiler.
An Error Code is an indication that there is a problem. It’s usually caused by flame loss issues.
Do not attempt to repair it yourself. Instead, get in touch with a Gas Safe certified engineer.
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