Why Does My Furnace Keep Shutting Off?

September 15, 2017

There is typically a sense of dread when you realize something isn’t quite right with your furnace. You’re relaxing 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 than usual 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 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 several of us, we may have set our thermostats months ago and forgot about it, especially when using a smart or programmable thermostat. Look at your thermostat to see if anything unfamiliar is going on or if it could 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 space, such as in direct sunlight or near another heat source, it could be mistakenly assuming your home has met 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 frequently. Walk around your home and check the windows to ensure they are all closed and inspect the seals around your windows for any drafts or cold air coming into the house.

While you can review these issues by yourself, if issues still persist 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 costly repairs or even a replacement.

Our experts are happy to help you assess 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 visit our online scheduler to conveniently request an appointment.

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