I recently part serviced a boiler which had not been seen to for 6 years. I cleaned the pre filter, pump filter and replaced the nozzle with one which i was assured was the correct one for the model. I cleaned out the fire box. It worked immediately giving better water temperature faster and came on lss often. A week later it started to produce a lot of black smoke although without apparently changing anything else. should I cleanout the flue or could the nozzle not be correct_
Bill Griffiths

Bill Griffiths, August 2008

bentone st 108 i turn i on but not fireing up

dawn williams, October 2011

ran out of oil now my sterling 40 st108 oil burner needs bled can anyone help?

kdoc, March 2009

we ran out of heating oil so we filled it we blead the fuel system but now the heating stays on for 5mins then cuts off also it will not heat the water to the storage tank and the water pump is making a loud winding noise

paddy, February 2009

also always replace oil filter not just clean it

old guy, September 2008

needs more air or smaller nozzle

old guy, September 2008

could be wrong nozzle or pump pressure you really need to get a enginneer to put his analyser in it to check co2 level cus you cud be doing more harm

steve, September 2008