Cheers Mick have checked the pressure which is currently 2 bar which agin from the book seems to be ok. When it tries to fire up pressure starts to go up until it falls over !!
from readin this forum seems to me that these boilers are designed to fall over on or about 3 yrs old !!!!
Mine has just gone :x new build wimpy home !! i am getting H and L9 failure responses but the manual is very sketchy on this !! done the reset and the boiler seems to go into restart...