Why Does My Furnace Keep Shutting Off?

September 15, 2017

There is usually a sense of dismay when you realize something isn’t quite right with your furnace. You’re resting at home and you hear your furnace is endlessly kicking in and shutting off. However, before you panic, there are several items 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 inside your home cleaner, but they also work to keep your system clean. Your first step when you realize there is a concern with your system should be checking your air filter to see if it needs to be replaced. 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, particularly when using a smart or programmable thermostat. Check your thermostat to see if anything unusual is taking place 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 often hotter than the rest of your space, such as in direct sunlight or close to 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 regularly. Walk around your home and check the windows to ensure they are all closed and take a look at the seals around your windows for any drafts or cold air entering the home.

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 professionals. When your furnace is always turning off, it can end up forcing unnecessary work and stress on your system that could produce more pricey repairs or even a replacement.

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

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