the burner lockout has tripped on my above boiler, and initially would reset and the system would run for a few minutes, giving me some central heating or some hot water, both seemed to work fine. Now it trips out after a few seconds and won't reset unless i switch the machine off for a short period of time first. If i don't switch the whole thing off, pressing the reset on the burner does nothing and the amber light remains lit - well it clicks but the light does not go out. i have tried to run the boiler with the burner cover removed and i've checked the photocell which is definitely not black. Does anyone have any further suggestions i could try, as i have a bit of time on my hands before my usual boiler service people re-open in the morning - it would be nice to have some heat tonight (living in a granite build house near a river in a dip - kinda chilly here!), and by the looks of some of the useful posts/replies i've seen on other threads, this seems the best place to ask right now!!