My boiler is lighting up ok , the radiators are only getting luke warm despite thermostar being turned up to max , I have bleed all the radiators and bleed pipes by water tank, the flow and return pipes to boiler are not warming up to temperature. hot water is ok I have a glow-worm 55f boiler any ideas please

kevin davies kev-val@ hotmail.co.uk, November 2006

the dial has been turned up to max usually i s on 3 anyway doesnt make a difference have noticed that the blue flame is only half size ?? air management how can i rectify this

kevin, November 2006

on your pump there will be a dial that indicates the speed, usually 1-3, turn this up.

BG MIKE, November 2006