It’s never a good idea to ignore a furnace smell. Except that burning dust smell that often occurs at start-up, an odor can indicate a serious problem. Smells serve as warnings that it’s time to have an HVAC pro evaluate it for safety.
Winter in Northeast Indiana can be long and cold, requiring the furnace to run 24/7. If your furnace has been properly maintained, chances are it will make it through the heating season with no trouble, but older furnaces and those that haven't had an annual tune-up for some time may show signs of needing some TLC. A burning furnace odor is one of these signs. While most burning odors are a result of dust burning off inside your system, any smell coming from your furnace should be checked. These tips will help you troubleshoot the burning smell.