The boiler is an ideal classic xlff or ff it fires up but the boiler keeps clicking very slightly in sound as if it is trying to light the pilot.
I have just changed my room themo as it stopped clicking when turned and now lights up when switched on but soon
go's off when all switched on but no hot water going anywhere.
can anyone help me please...

craig, September 2009

flame sensing electrode or pcb may be faulty.

Ian, September 2009

not sure about first bit ? but pump could be at fault

tim, September 2009