What does the Worcester EA 229 fault code mean?
According to Worcester Bosch, the EA 229 boiler fault relates to a loss of flame during operation.
This is a flame that has been extinguished and not an initial unsuccessful ignition.
EA 229: Loss or fading of the flame signal during an operation on a Worcester boiler
- Cause code: 229
- Reset type: Click the Reset button
- Possible cause: An existing flame has been extinguished. This could be due to:
– Sump moisture due to a sump/condensate pipe that is blocked
– Strong wind blowing into the flue
Your Worcester Bosch boiler may be showing an error 229 on its display. This means your boiler’s flame went out while it was being used. This error is often misinterpreted by people who think it means that their ignition switch is defective. However, error 229 refers to any flame that has gone out while the boiler was in use and not a failure of ignition.
What causes a Worcester error 229?
There are many reasons that Worcester error 229 ignition ionisation could occur, including:
- The flame detection detected a fault in the printed circuit board (PCB).
- Faulty gas value
- Bloating in the flue
- Blockage of the gas meter regulator
- Heat exchanger debris
Each one of these causes can cause irreparable damage to your boiler. It is important to identify the problem and fix it so you can continue to use your boiler safely.
Do you need an engineer to fix a Worcester Error 229?
Many people believe that if the reset button is pressed and it works, there is no need to call an engineer. Unfortunately, this is false.
Worcester error 229 indicates that your boiler isn’t working properly. It is a warning sign that may indicate that there is a larger problem. Even if the boiler is relighted and works properly, it’s still worth calling an engineer to inspect it.
Faulty boilers can be dangerous and should not be left unattended.
PCB flame detection fault
The first thing to check is that the PCB is getting a signal to show the flame is burning. Just because the PCB thinks the boiler has no flame, doesn’t mean that’s the case.
A multi-meter can be used to test the PCB for any connections that may be causing intermittent flame detection signals.
If the PCB has problems with flame detection or other boiler parts (e.g., the gas valve or the air pressure switch), it could be a problem.
It will have to be replaced if this is the case.
How much does it cost to replace the PCB in a Worcester Bosch boiler’s Worcester Bosch boiler?
Around 50% of costs associated with a new PCB, are with the PCB part itself, rather than just labour. So, the price will vary a great deal depending on the model of boiler you own, and the cost of the PCB.
It’s not likely that the total cost, including labour, diagnostics, and parts, will be lower than £500.
This means that in many cases, a new boiler may be an option.
Modern boilers are more energy efficient, so you will save money on your energy bills. Not to mention that they come with a warranty, which means no additional repair costs.
A Stuck gas valve can it cause the EA 229 fault code
A boiler’s gas valve is connected to the PCB. When the PCB recognises that you need more heat, it needs more fuel and tells the gas valve to open. And, vice-versa when you turn your heating down.
These gas valves can become stuck over time.
A gas valve can often be removed. If the gas valve is reinstalled but still causing problems, it will need replacing.
The boiler may also be receiving too little gas if the gas valve has been incorrectly adjusted. There is just enough gas to light the flame but not enough to keep it lit. The boiler will shut down when the flame goes out.
All that is required in this case is for a Gas Safe engineer adjust the valve.
How much does it cost to replace the gas valve in a Worcester boiler?
If it’s the gas valve causing the EA 229 fault code on your Worcester boiler, a replacement will cost around £300. And, a Gas Safe engineer will usually get the valve replaced within a 1 working day.
The best choice for boilers less than five years old is to replace the part, rather than buying a new boiler.
Blocked gas meter
Unfortunately, a lot of gas meters are located outside. On that meter, the regulator is prone to freezing in wintry conditions.
This can freeze and restrict gas flow, causing a boiler to quickly lose its flame.
Adjusting the gas valve to provide more gas won’t make any difference. This will only lead to more problems. The boiler will get too much gas when the regulator melts.
As an additional precaution, the gas meter must be adequately lagged to prevent freezing.
What can you do to repair the problem?
The main body of the burner is rarely affected by debris build up from carbon.
The small jet inside the burner can be easily blocked. To block the burner jet, you only need to remove small pieces of debris. This debris can either block the burner jet or cause it to fluctuate in strength.
The smallest pressure drop in the boiler can extinguish the flame at this point. This is detected by the flame detector and the boiler is locked out with the EA 229 fault code.
What can cause my Worcester boiler to display the EA 229 error code?
Most people assume that intense winds will make their way into the flue, and that’s what is blowing out the flame; that’s rarely the case.
A small blockage can make the boiler’s flame more likely to go out. Although a draft can extinguish the flame but not the wind, it is the blockage that caused the flame to go out.
A Worcester Bosch boiler engineer will need to inspect the flue.
If a flue guard has not been installed, debris could easily get into the vertical flue. A flue guard must be installed if this happens.
Can a frozen condensate pipe be the issue?
Unfortunately, the EA 229 Worcester fault code isn’t particularly specific. A loss of flame could one of the things we’ve listed above, or none.
Condensate blockages are a common problem in winter.
It is not uncommon for condensate to become blocked by debris. We find that the condensate is frozen by the colder temperatures.
This freezes the boiler, which is potentially dangerous, and the boiler locks out.
This is a quick solution. This small pipe is usually 21.5mm in diameter and can be found on the exterior of your property. It should not be confused with the flue, which is larger in size.
Most cases will resolve the EA 229 fault code by thawing the pipe and setting the boiler back to normal.
Long-term, the pipe should be properly lagged.