worcester greenstar 30cdi
GCN 47-311-71
boiler inop
blue light fast flashing
NO FAULT CODES DISPLAYED
this is going to be difficult to diagnose because if we are talking about the same boiler then i find it difficult to understand how it can go into lockout without displaying a corresponding fault code as described in detail in the installation manual and also the service booklet for engineers
in the absence of any further information you have no option but to call a competant gas engineer
manwithnoname, May 2012
