hi all i need some advice, i am an electrician and i have a fault on my boiler the boiler goes to fire up and then blows the 2amp glass fuse on the incoming mains connector block! my first thought was the fan so tested and is fine then tested the air switch that is fine however if i take the feed for the fan out of the pcb the fuse is fine the boiler wont kick in as the fan is off but the fuse is fine. i have tested all external wireing and its ok i have also tested the pump and that is fine, my boiler is 2.5 years old and it is a Alpha he33 any advise or help would be well recieved as said i am a.very competent electrician but due to the cost of parts i would like to make sure on this one
cheers[/img]
cheers[/img]