Can anyone help with my boiler. Boiler goes to intermittent lock out, red light only flashing. Can go to lock out at any time, from cold start or when been running for several hours. Can occur several times in one day or maybe once a week. Will also when lock out occurs pump continues to run, is that normal?

Shaun, July 2008

you may need the pcb replaced, there is a new version (this boiler always suffers this problem)
and once this change is done problem should go forever ....good boiler other than this...even been a documentary made about that one..bbc I think!

T, July 2008