A furnace may be
hard-bodied, but it isn't built to resist all manner of mishaps.
Overuse, carelessness, negligence, and other factors can all
contribute to its early demise. To prevent furnace repairs and
prolong the life of your dependable HVAC system, you should be aware
of these simple, easy-to-do maintenance procedures:
Air Filter
Replacements
It's the air filter's job
to allow air to flow freely through the furnace. A faulty air filter
can cause severe internal damage to the furnace, so it's vital to
have it replaced regularly. If you're not confident about operating
furnaces, you can always ask for professional help from HVAC
companies.
Annual Inspection
You shouldn't assume that
a furnace doesn't have any problems just because it seems to be
running smoothly. Unless...