Worcester Bosch Boiler EA 227 Fault Code
The Worcester fault code EA 227 Lack of flame detection Q & A or require an engineer for an emergency boiler repair.
The Worcester Boiler Fault Code EA 227 Error Common Q & A
Just below, we have a list of common questions relating to the EA 227 fault code on the Worcester Bosch Boiler.
- What does the EA 227 fault code mean on my Worcester Bosch boiler?
- Will resetting my boiler allow the flame to ignite and clear the EA 227 fault code?
- What could be causing the EA 227 fault code to be displayed?
- What can cause a gas supply issue on my boiler?
- Can an incorrectly adjusted or faulty gas valve be fixed to clear the fault?
- How much does it cost to have a gas valve replaced, and how long will it take?
- My boiler displays the EA 227 during winter, what could be the problem?
- How can I stop my gas regulator freezing?
- How will a boiler engineer know if the pilot jet is blocked?
- If the electrode or ignition lead are to blame, what’s the solution?
- How does moisture find its way to the PCB and cause the EA 227 fault code to be displayed?
- If the PCB is faulty, what can I do to clear the EA 227 fault code?
What does the EA 227 fault code mean on my Worcester Bosch boiler?
The EA 227 fault code on Worcester Bosch boilers relates to lack of flame detection.
If you’ve noticed this fault code on your display panel, it’s likely the boiler attempts to ignite four times. After this, it will wait 30 seconds, and attempt the process again.
If no flame is detected after this point, it will lock out and display the EA 227 fault code.
Will resetting my boiler allow the flame to ignite and clear the EA 227 fault code?
A boiler lock out combined with a fault code, is the boiler telling you that it has an issue that needs to be fixed.
Due to the nature of the lock out, the safest option would be to call a Gas Safe engineer to come and fix the problem.
Once they’ve determined the fault and fixed it, they will reset the boiler to clear the EA 227 fault code.
What could be causing the EA 227 fault code to be displayed?
There are a few explanations for why your boiler knows when to ignite but isn’t producing a flame, including:
- Gas supply issues
- Blocked pilot jet
- Damaged electrode or ignition lead
- Moisture on the electronics, including the PCB
What can cause a gas supply issue on my boiler?
The most frequent problem causing the EA 227 fault code, is a gas supply issue.
This could be due to a:
- Incorrectly adjusted, or faulty gas valve
- Stuck gas meter regular
Can an incorrectly adjusted or faulty gas valve be fixed to clear the fault?
If your gas valve isn’t correctly adjusted, it won’t be feeding the ignition and burner with the gas it needs. Or, it could be swamping the ignition with too much gas, not allowing it to ignite./p>
The valve can be adjusted, so that the boiler is being provided with a steady flow of gas.
If the adjustment doesn’t clear the EA 227 fault code, it’s likely the gas valve is faulty.
Your Gas Safe engineer will determine this by testing all the electronics to and from the gas valve, as well as checking that the valve opens and closes freely.
A stuck gas valve can sometimes be fixed, but usually a replacement will be needed.
How much does it cost to have a gas valve replaced, and how long will it take?
Depending on the exact model of boiler, the cost of a replacement gas valve will be around £300.
This accounts for time to diagnose the problem, replace the valve, then reset and test the boiler for further faults.
Replacing the gas valve shouldn’t take longer than a day.
My boiler displays the EA 227 during winter, what could be the problem?
We’ve already mentioned that the gas meter regulator can lead to problems and the EA 227 fault code being displayed. This is located on the gas meter, and most meters are located outside.
The regulator helps supply a steady flow of gas into your property. But, we find a lot of meters are not lagged correctly using insulated pipe, or are not boxed in to protect them from wintry weather.
Of all the components on the meter, it’s the regulator that’s prone to fully or partially freezing.
When it does, that’s going to stop or limit the supply of gas. So, even though the boiler is fully functional, it’s not being supplied with the gas it needs to operate.
How can I stop my gas regulator freezing?
A combination of insulated lagging, and boxing in the gas meter. This protects it from wind chill, and with UK temperatures, that’s usually enough to stop the regulator freezing.
How will a boiler engineer know if the pilot jet is blocked?
To produce a flame on the burner, the pilot jet needs to be clear. If you noticed the flame flickering before the boiler eventually stopped working, it’s likely there’s a small piece of debris in the jet.
These jets are tiny. So, the smallest particle of dust, dirt or carbon, is enough to block the jet. And that leads to the boiler not being able to ignite, locking out, and showing the EA 227 fault code.
A boiler engineer will inspect the jet. They’ll be able to remove the jet, clean it and reinstall. If the jet was blocked, this will clear the fault code after the boiler is reset.
If the electrode or ignition lead are to blame, what’s the solution?
It would cost more to repair them (due to time and money on labour), rather than just replacing the components with brand new ones.
That said, depending on the type of boiler you have, the ignition lead could cost around £200 to replace.
How does moisture find its way to the PCB and cause the EA 227 fault code to be displayed?
Moisture finds its way onto electronic components when there’s an internal boiler leak.
Typically, we find that either a cracked heat exchanger or a pump that’s blown its seals, is to blame.
This leak could be tiny. And that means that it might not be leaking enough to be coming out of the boiler’s casing. So, you won’t know that the leak has occurred.
The water will either drip directly onto the PCB, or the heat of the boiler will condense it, and that condensation settles and makes its way into the PCB.
Any water damage to electrical components is not good news. It causes them to work intermittently, burn out connections, and eventually they’ll need to be replaced.
In the case of the EA 227 fault code, PCB damage could result in several problems including:
- Telling the gas valve to open or close when it shouldn’t
- Not detecting a flow of gas
- Not detecting a flame, even though there is one
If the PCB is faulty, what can I do to clear the EA 227 fault code?
A Gas Safe engineer may be able to find the leak, fix it and then repair the PCB. That’s only the case if the water damage is minor (for instance, one small section of wiring needs replacing).
However, we usually find that a PCB with water damage needs to be replaced. And the replacement cost for a PCB could be more than £500.
Other Worcester boiler issues
More more boiler issue regarding the Worcester Bosch the please visit the Worcester Boiler Problems And Cures page.