when i put the heating on it works for about 15 seconds then goes off. about a week ago it was only heating the up stairs radiators now nothing. i was told it was the pump but the the pump still runs when they are on. the boiler its self clicks in for a few seconds then goes off,this is what it is doing all the time now, the hot water works fine

jason cassar, January 2007

more like P.C.B modulator board

peetee2, January 2007

yes i think you may be rite iv changed the pump and its still the same. i was also told there mite be a blockedge as the return pipe is not heating up (if that makes any sence) thanks

jason, January 2007

diertor valve comon on these boilers

steve b&h heating, January 2007