Why does my furnace keep shutting off? Published on September 15, 2017 There is always a sense of dismay when you notice 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 a few things you can check when you realize your furnace seems to be shutting off more frequently than it should be. Check the air filter in your furnace—You may think that air filters are only used to help keep the indoor air cleaner, but air filters also support keeping your system clean. Your first step when you realize there is an issue with your system should be taking a look at 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. Look at your thermostat—For lots 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 strange is going on or if it may need new batteries. The site 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 by another heat source, it could be falsely assuming your home is already up to the desired temperature. Check out your windows for proper insulation—If your home doesn’t have the right 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 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 pros. When your furnace is always turning off, it can lead to unnecessary work and stress on your system that could lead to more expensive 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 maximum indoor comfort. If you have questions, call us at 519-894-3222 or check out our online scheduler to conveniently request an appointment.