Have you recently had a new furnace put in and are now experiencing an unusual smell? You’re not alone, because many other homeowners also experience this at first. Let’s review what’s leading to this smell, and when you can expect it to disappear, as well as three other furnace smells you shouldn’t neglect.

Why Your New Furnace Smells

There are two reasons why a new furnace might smell.

Protective Coating

Your furnace has a special finish on specific parts to keep them from rusting. This may include the heat exchanger, which safely removes gases like carbon monoxide naturally made during the heating process.

When your furnace operates for the first couple of times, the coating may release a burning smell. This is typical and the smell should disperse the more your furnace runs.

To be on the safe side, you’ll want to connect with a heating and cooling company if the smell lingers. A burning smell that remains can mean the motor is too hot or there’s an electrical problem, among other problems.

Dust

Dust accumulates inside your furnace when it’s off in the spring and summer. That dust will burn off when you switch on your furnace in the fall, making a burning smell. This smell should go away within a few minutes.

One way you can reduce or prevent this smell is by having furnace maintenance done every year. This is necessary to keep your valuable manufacturer’s warranty applicable, plus it keeps your furnace clean and ensures it will run perfectly during the upcoming heating season.

3 Other Furnace Smells You Shouldn’t Ignore

While it’s less common for a new system to necessitate furnace repair, it happens. Here are three other odors you should keep an eye out for and what they might mean.

  1. Burning plastic or rubber. If your furnace smells like burning plastic, you might have an electrical problem. Electrical wiring is protected in plastic to protect against shocks, and this smell is a sign that heat is melting this protective coating. To hinder a fire, turn off your furnace immediately and have it inspected out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies add sulfur to natural gas to alert you when there’s a leakage. If your furnace smells like gas or rotten eggs, shut it off right away, evacuate your home and call 911. Exposure to natural gas can make you sick, plus it’s highly flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew flourishing in your ductwork. We advise having your ductwork examined and cleaned if needed.

Now that you understand which furnace smells are normal and which ones aren’t, you’re prepared to take care of your new furnace. If you’re worried about a weird odor, our AZ Air Conditioning and Heating HVAC technicians can assist you. Give us a call at 800-296-5088 to schedule your appointment right now. We provide quality, affordable furnace repair in Los Angeles and surrounding areas.