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
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