Just had the annual service on my Firebird oil combi. A day after the service the flue started belching stinking black smoke so the guy came back and the whole thing needing cleaning out. New gaskets were fitted and all seemed fine but the flue is now giving off excessive smoke/steam which has a smell of oil to it. Not sure if there's any easy fix for me to do or what to tell the guy to look out for when he comes back next week (hopefully!)
Any ideas?
Any ideas?
