grant euroflame 70/90 utility/kitchen boiler stopped working?

grant euroflame utility/kitchen boiler stopped working bled the nipple on the boiler bled the pipe on main oil tank outside reset timer in airing cupboard bled radiators have tried to put heating and hot water on constant pressed reset button on boiler it did spark up once worked fine and started heating up water then switched itself off also for some reason the red pump in the airing cupboard has switched itself off aswell the system i have is only about 4 years old can you help