I have a 10 tr old Glow Worm Ultimate boiler for my hot water and central heating. 1 year ago it had a faulty fan, which was replaced. Recently the boiler has not been working. Brit Gas were called and found no fault so they gave it a service. Since they left I had hot water for 1 week. Then I went on holiday and switched everything off. I've come back but cannot get the boiler to work. When I switch the power on to the boiler I hear an initial clicking or cracking noise but nothing else. I'm a novice with all this. Is there something I can do to fix this. I'm reluctant to call Brit Gas as they were here only 1 month ago.
Thanks
Thanks