Baxi 105e - Power led not lit - Boiler not working?

Hi all

Got up this morning and it was very cold - couldnt hear the boiler and checked the raidiators and all cold - not good, wandered why as it was fine yesterday tea time.

Went up and checked the boiler and no Leds lit inc Power led - i presumed no power so reset the boiler, no joy, flicked the power swtich on and off, no joy, then even replaced the external fuse - still nothing. So out of idea's (not that i have many mind!)

Falling short of dismantling a boiler (i know nothing about) or get somebody in (which finding time to do is a big a problem as the cost) im struggling, so any help or pointers would be great as google is not my friend with this.

Thanks