Just came back from holiday an hour ago and found the boiler re-set light on. Tried to re-set many times but after few seconds of sparking, the boiler does not fire either in C/H or DHW mode. Can't smell any gas when trying to light. At the gas valve, there is no 240V, this means it is fine. As both DHW and C/H are not working, I am discarding the thermistors being faulty. The only item left is the PCB. Can anyone help me with this as I cannot find the manual for the boiler anywhere. Has anyone got a copy which they can e-mail to me? Thanks Ravi