hi moved into a house with an old ideal concord wrs 240 boiler.its a great boiler but lately the pilot keeps going out.its easy to relight but only works for a week or two.i have been around when it goes off and you can hear it click off.just wondering if anyone can point me in the right direction so i dont get ripped off and i know i need a new boiler just dont want to change it till next year. cheers