Oh, no! It sounds like something serious is wrong with your furnace! It keeps trying to start up, but then it immediately shuts down again! What could be going on? Is it going to be tremendously expensive to fix?
Don’t panic just yet. It’s true that this is a serious issue, especially if it happens on a very cold night and you’re not getting any heat. But there’s a common problem that can cause it, and the repair is actually simple. Why does your furnace keep shutting down just as it tries to start? It could very well be the flame sensor’s fault. Here’s what might be going on.
