Why Does Your Furnace Smell When You Turn It On? 11/01/2016 The temperatures are dropping here in the Main Line and that means soon we’ll be counting on the comfort of our furnaces. This is usually the time we receive several furnace repair calls from our clients concerned about a strange smell escaping from their furnace. If it’s been awhile since you’ve run your furnace and you smell something strange, stay calm. There’s typically nothing to worry about and there are a number of reasons your furnace might smell strange. Last winter was maybe the last time you’ve had to run your furnace. Throughout the year, dirt may have built up inside of your furnace. Turning on your furnace for the first time will burn that off, producing a smell. This smell will spread through your home throughout your duct work. This usually isn’t a serious circumstance and the scent will not last long. Although, if the smell doesn’t go away after a brief time, you’ll have to call in a technician to inspect the issue. Another probable cause of interesting smells coming from your furnace is a clogged air filter. A clogged filter will cause your blower motor to run harder which could cause the motor and/or your furnace to overheat. You’re better safe than sorry and if there are any odors coming from your furnace the professionals at O'Brien Heating & Air Conditioning in the Main Line are ready to check things out and set your mind and nose at ease. You’re going to be depending on your furnace more and more these coming months, if you haven’t yet, it is the perfect time to get your annual furnace repair scheduled. Our certified technicians will get all those internal components cleaned and checked out to ensure your system will run efficiently and without troubling smells this the Main Line winter. Get an appointment scheduled by calling us at 610-626-2540 or set up an appointment using our online scheduler.