Can anyone help me please. My husband is in the RAF and away right now and now the pilot light has gone out on our boiler. I have no manual. I believe the boiler is as old as the hills , but always been ok . I know my husband has relit the pilot light a few times. I have so far removed the bottom cover, held in the grey bottom button and then pressed the ignition switch. This has sparked but not lit. Am I doing it wrong ? Can anyone suggest anything more I can do before I call out an engineer. Many thanks Val