Answers - mend, repair, fix
There is no pilot light on the HEs, it's spark ignition.
If, when you turn your heating on, the boiler tries to light but then shows "EA", then this could well be related to you running out of gas - it may be that there is air in the gas pipe and it will need to be purged by a Corgi engineer.
Thank you Bunslinger - sounds like exactly what's happened, kept getting "EA" as an error code. Engineer coming out tomorrow.
Julie Bowen, March 2009