I recently had a new Goodman furnace installed in my apartment and it started making an intermittent clicking/ticking noise. It didn't make this noise when I ran the heat in April and didn't make it the whole summer when I ran the AC. The intermittent noise is short and varies in how loud it is. It even makes the ticking sound when the furnace is off. Any information would be great as I have had issues with the maintenance people and am trying to get more information before I contact them. Thanks