It’s the “Worst Thing That Can Happen During the Winter”—a home furnace that suddenly stops heating. If it’s a cold day, this can be a serious emergency.
What do you do when you’ve got a cold furnace? The right answer is: “Call an HVAC professional to repair it.” But that’s only part of the right answer. There are some checks you can make first to see if the furnace stopped working for a simple reason. Once you’ve eliminated these basic mistakes and errors, you can reach out to a professional to come in and find out what caused the furnace to fail and then fix it.