Why Does My Furnace Keep Shutting Off?

September 15, 2017

There is usually a sense of dread when you realize 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 several items you can check when you realize your furnace seems to be shutting off more frequently 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 inside your home cleaner, but they also support keeping your system clean. Your first step when you realize there is a problem with your system should be taking a look at your air filter to see if it needs replacement. If it’s clogged or dirty, it can make it hard for air to flow over the heat exchanger.
  2. Look at your thermostat—For lots of us, we may have set our thermostats weeks ago and forgot about it, even more so when using a smart or programmable thermostat. Check your thermostat to see if anything unusual is going on or if it might need new batteries. The location of your thermostat could make a difference, as well. If it’s located in a place that’s usually hotter than the rest of your home, such as in direct sunlight or close to another heat source, it could be wrongly assuming your home is already up to 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 confirm they are all closed and inspect the seals around your windows for any drafts or cold air entering into your house.

While you can certainly check for some of these issues by yourself, if issues still continue after these checks, it might be time to call in the pros. When your furnace is consistently turning off, it can end up forcing unnecessary work and stress on your system that could cause more expensive repairs or even a replacement.

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

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