Worcester Greenstar Si boiler EA 234 error code

Hello Everybody,

My seven years old Worcester Greenstar Si boiler is irritating me a lot by displaying an EA 234 fault code whenever I turn it on. What should I do in order to get rid it of?

Thanks a lot for your help


Hi Craig, 

Here the problem is with boiler’s gas valve. The proficient boiler engineer will be capable of checking that the coil is connected properly because after doing so, he will get to know that the problem is with gas valve. For the gas valves, which are quite old, it is expected that, these valves are seizing slowly. It might mean that these valves do not close or open fully & all this leads towards the issue of gas supply.