worcester bosch 24i rsf-l,
problem, boiler will not fire up when turn on hot water tap. unscrew 1 screw on the sealed cabinet and the boiler fires up delivering piping hot water,soon has i reseal the cabinet the boiler shuts itself off i replaced flue with a new one and recently the fan as it had a seized bearing,

stephen smith, June 2010

sounds like the pressure switch not working probably need to replace,as boiler cant clear with the fan not working

dave m, June 2010