when my boiler heats the water up and drops back down to pilet light it clicks and shuts down and it does the same when heating is on

darren, August 2008

overheat stat you reckon T?

iain, August 2008

where would i find the boiler number thorn mei thats what it says on the brown cover on bottom,its not a combi boiler.I was lighting the boiler this morning and it would firer up then i timed it for 5 minutes and it would go back to a little light then click off.i was doing that for an hour then it wouldnt light at all until it had cooled back down at a guess i would say it was about 15 years old

darren, August 2008

what is the problem, does your boiler lockout?
or are you saying on low modulation the boiler will not remain fired?

boiler make and model also required

T, August 2008