There are many different ways that a furnace can malfunction. But a furnace that fails to start is probably the easiest to understand.
A furnace that turns on but doesn’t deliver hot air is something that’s hard to test and diagnose. Meanwhile, a furnace that turns off and on without thoroughly heating the home is another set of potential problems on its own.
If your furnace doesn’t turn on at all, there’s a good chance that it can easily be fixed by restoring some connections or having a quick maintenance check performed. Allow us to explain…