I have bought a home recently. It was built new 2 years ago, and therefore I did not go through hiring someone for a formal home inspection. In any case, I don’t think home inspections cover appliances.
The heating furnace works fine, except that when the blower starts I hear this funny noise. The closest I can describe it is that it sounds like a long drawn whistle, that lasts for about 2 or 3 seconds and then goes away only to come back the next time the blower starts up again.
I am not too confident of going near furnaces and trying to inspect one at close range is not comfortable, especially when it is ‘live’.
What could be the source of this sound? Is it the belt(s) slipping, or something else? Is it just a way for the furnace to tell me that it is coming on? Should I be immediately concerned, or can I wait a few months for summer when the asking rates for the furnace repair guys are likely to be lower? Can I do something to find out the source of the problem and rectify it myself, or should I not even think about it?