Worcester R30 HE won't start?

Hi guys, working yesterday morning fine then she stopped with an EA fault code showing, so I've checked spark that's good had front off and cleaned out not bad at all electrodes look fine still not starting, I've also put on a newPCB and the same fault code comes up, also looked at bottle on front all clear. HELP HELP as run out of ideas now.

Keith denham middx.
October 2013