How can i fix my Sime Super 90 Boiler, it is not igniting?

The boiler is 10 years old we turned it on as normal last weekend and the boiler turns on as you can hear the pump come on but there is no sound from the ignition and the pilot light does not ignite. You would normally hear the ignition clicking and after a few times the pilot would ignite. I assume its some electrical fault with the ignition unit? If there is such a thing? any help?