thanks for the advice chaps it has the old sifan fan and pcb in it i have ordered the new capacitor anyway and hopefully this will cure the problem if not i suppose its time to change the fan and pcb for the newer version i will post any further news as soon as the new part arrives .
thanks again
can anybody please give me some advice on this problem please
i had the pcb and fan replaced 14 mnths ago now the boiler will run for about 3/4 hr before the fan will not start it will try but it seems as there is not enough ompth in it .if i take the cover of and spin the motor it will work...