Your furnace has a lot of working parts that need to run together in tandem, but some are more important than others. In fact, this one sensor is so important to your furnace’s operation that it could be stopping it dead in its tracks.
This isn’t a common part of furnace service in Arlington, VA that homeowners know about, so that’s why we’re talking about it today. It’s called your flame sensor, and it has a big role it plays: keeping you and your family safe, and keeping your furnace in check.