Has your furnace started to produce a burning smell whenever it turns on? If so, you should take action to prevent the problem from getting worse. Furnace odors can indicate a variety of issues, some of which are serious safety concerns. You’ll need professional furnace repair to identify and resolve these potential furnace problems.
A Cracked Heat Exchanger
A cracked heat exchanger is one of the most immediately dangerous potential causes behind burning smells. The heat exchanger transfers heat from combustion gases to clean air without the two mixing, keeping hazardous compounds and foul odors out of your home.
If the heat exchanger cracks, then gases can pass between the two sides. Not only does this cause a burning smell, but it can also allow poisonous carbon monoxide into your home. Get furnace repairs as soon as possible to avoid serious health and safety risks.
Accumulated Dust and Debris
Dust and other debris can build up on a variety of surfaces over time and burn off when your furnace turns on. This is especially common during the start of the heating season when you first turn on your furnace. An entire season’s worth of dust will have accumulated, creating a strong odor.
This initial foul odor should fade fairly quickly. If it happens again the next time your furnace turns on, it’s likely that there is another issue, and you will need furnace repairs.
A Clogged Air Filter
Your air filter is another prime suspect whenever you notice a burning smell coming from your furnace. Changing it out regularly is essential to ensure safe and effective performance. In general, that means every three months.
If your air filter has become clogged by dust, it’s going to put a lot of strain on the blower motor. This can cause the motor to overheat, creating a burning smell. Check your air filter to prevent this before you find yourself needing a new blower motor.
Is My Furnace Overheating?
A burning smell could be caused by an overheating furnace. If your furnace is running too frequently or if there are faulty components, it may be overheating. While there are safety features to shut down an overheating furnace, it is still a serious issue.
An overheating furnace poses a potential fire risk. In 2023, there were 27,900 fires related to home heating in the U.S. If you notice burning smells, short cycling, reduced airflow, or continuous blower motor operation, you should call the professionals to determine whether your furnace is overheating.
How Long Do Furnaces Last?
Burning smells could be a sign that it’s time to replace your furnace. In general, furnaces last between 15 and 20 years. Having professionals take a look will let you know whether your furnace can be repaired or if a new furnace replacement is the better choice.
Your Trusted Local Furnace Repair Company
If you’ve noticed burning smells or any other potential signs of furnace issues, you can count on the team at Aire-Flo Heating, Cooling & Generators for expert furnace repair. We’ll get to the bottom of the issue and implement repairs that deliver lasting safety and performance. Reach out today to schedule service.