Keeping your furnace running efficiently starts with two simple tasks: changing your air filter and cleaning your flame sensor. 👨‍🔧 In this video, I’ll show you how often to replace filters, how to safely remove and clean a dirty flame sensor (even with just a dollar bill!), and how to recognize warning signs like orange flames that could mean a cracked heat exchanger or exhaust issue. Finally, we’ll do some basic furnace cleaning to keep everything running smoothly. A must-watch for homeowner