When a furnace completely stops working during the coldest depths of winter, it’s a huge problem. You can’t wait around for repairs until you get hypothermia and fall over like a frozen iguana dropping out of a tree! But we’ve got some excellent news for you. One of the most common causes of a sudden furnace breakdown is actually very simple.
There are safety mechanisms built into your furnace. This protects you from things like gas leaks and carbon monoxide poisoning. One part of your furnace’s safety system is called the flame sensor. It’s very easy for it to stop working properly, and lucky for you, it’s also easy to fix.