Why Does My Furnace Keep Shutting Off?

September 15, 2017

There is usually a sense of dread when you recognize something isn’t quite right with your furnace. You’re relaxing at home and you realize your furnace is endlessly kicking in and shutting off. However, before you panic, there are some things you can check when you first notice that your furnace seems to be shutting off a lot more than it should be.

  1. Check the air filter in your furnace—You may think that air filters are only used to help keep the air in your house cleaner, but they also support keeping your system clean. Your first step when you recognize a problem with your system should be examining your air filter to see if it needs replacement. If it’s clogged or dirty, it can make it difficult for air to flow over the heat exchanger.
  2. Look at your thermostat—For many of us, we may have set our thermostats several months ago and forgot about it, particularly when using a smart or programmable thermostat. Check your thermostat to see if anything unfamiliar is going on or if it might need new batteries. The placement of your thermostat could make a difference, as well. If it’s located in a place that’s typically hotter than the rest of your space, such as in direct sunlight or by another heat source, it could be falsely assuming your home reached the desired temperature.
  3. Check out your windows for proper insulation—If your home doesn’t have proper insulation, your furnace is likely to shut off more frequently. Walk around your home and check the windows to make sure they are all closed and examine the seals around your windows for any drafts or cold air entering into your house.

While you can look at these issues by yourself, if issues still persist after these checks, it might be time to call in the professionals. When your furnace is consistently turning off, it can result in unnecessary work and stress on your system that could cause more costly repairs or even a replacement.

Our experts are happy to help you evaluate the situation and identify the root of the cause, so you can enjoy the rest of the season with the optimum indoor comfort. If you have questions, you can call our experts at or use our online scheduler to conveniently request an appointment.

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