Why Does My Furnace Keep Shutting Off?

September 15, 2017

There is usually a sense of dread when you notice something isn’t quite right with your furnace. You’re relaxing at home and you notice your furnace is endlessly kicking in and shutting off. However, before you panic, there are several items you can check when you feel like 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 in your house cleaner, but air filters also work to keep your system clean. Your first step when you notice an issue with your system should be taking a look at your air filter to see if it should be replaced. If it’s clogged or dirty, it can make it tough for air to flow over the heat exchanger.
  2. Look at your thermostat—For several of us, we may have set our thermostats weeks ago and forgot about it, especially when using a smart or programmable thermostat. Check your thermostat to see if anything unusual is occurring or if it could need new batteries. The placement 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 house, such as in direct sunlight or by 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 often. Walk around your home and check the windows to confirm they are all closed and examine 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 professionals. When your furnace is consistently turning off, it can result in unnecessary work and stress on your system that could lead to more pricey repairs or even a replacement.

Our experts are happy to help you assess the situation and identify 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 check out our online scheduler to conveniently request an appointment.

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