Why Does My Furnace Keep Shutting Off?

September 15, 2017

There is usually a sense of anxiety when you realize something isn’t quite right with your furnace. You’re resting at home and you notice 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 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 in your house cleaner, but the filters also help keep your system clean. Your first step when you realize there is an issue 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 several of us, we may have set our thermostats months ago and forgot about it, even more so when using a smart or programmable thermostat. Look at your thermostat to see if anything strange is going on or if it might need new batteries. The site 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 house, such as in direct sunlight or close to another heat source, it could be falsely assuming your home has met the desired temperature.
  3. Check out your windows for proper insulation—If your home doesn’t have the right 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 review these issues by yourself, if issues still occur after these checks, it might be time to call in the experts. When your furnace is always turning off, it can result in unnecessary work and stress on your system that could produce more costly 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 best indoor comfort. If you have questions, give us a call at or visit our online scheduler to conveniently request an appointment.

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