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 resting at home and you notice your furnace is constantly 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 in your house cleaner, but air filters also work to keep your system clean. Your first step when you notice a concern with your system should be checking 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 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. Examine your thermostat to see if anything strange is taking place or if it may 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 home, such as in direct sunlight or close to another heat source, it could be falsely assuming your home is already up to the desired temperature.
  3. Check out your windows for proper insulation—If your home doesn’t have appropriate insulation, your furnace is likely to shut off more regularly. Walk around your home and check the windows to confirm 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 look at these issues on your own, 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 end up forcing unnecessary work and stress on your system that could produce more expensive repairs or even a replacement.

Our experts are willing to help you examine the situation and identify the root of the cause, so you can enjoy the rest of the season with the maximum 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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