The last occasion on which you want to worry about your furnace not producing any heat is the dead of winter, when the outside is chilly you just want to seek refuge in your own Takoma Park home…only to discover that it’s not much warmer than the outdoors.

This may seem like a total emergency, and the combination of chill and frustration may cause panic to set in. Don’t start fretting too much just yet, though. There are some potentially simple causes and solutions for this problem, such as:

If you have checked all these things and the thermostat still is not working, or if you don’t feel comfortable looking into these causes on your own, you are best served by calling a professional repairman to diagnose and fix the furnace.

Often, these big failures are just the symptom of a smaller problem, so in all likelihood you won’t have to replace the furnace or do any major repairs, especially if it has been well-maintained throughout its life.