Have you recently had a new furnace installed and are now noticing an unusual smell? You’re not alone, because a lot of other homeowners also have this happen at first. Let’s review what’s leading to this smell, and when you can anticipate it to go away, 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 reek.

Protective Coating

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

When your furnace starts for the first couple of times, the coating may give off a burning smell. This is normal and the smell should dissipate the more your furnace heats.

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 lingers can mean the motor has overheated or there’s an electrical problem, among other problems.

Dust

Dust collects inside your furnace when it’s not running in the summer. That dust will burn off when you flip on your furnace in the fall, producing 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 each year. This is needed to keep your valuable manufacturer’s warranty good, plus it keeps your furnace clean and ensures it will run properly during the upcoming heating period.

3 Other Furnace Smells You Shouldn’t Dismiss

While it’s less common for a new system to require 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 difficulties. Electrical wiring is protected in plastic to avoid shocks, and this smell is an indication that heat is melting this protective coating. To prevent a fire, turn off your furnace right away and have it examined out by an HVAC technician.
  2. Gas or rotten eggs. Gas companies add sulfur to natural gas to signal you when there’s a leakage. If your furnace smells like gas or rotten eggs, turn it off as soon as possible, leave your home and contact 911. Exposure to natural gas can make you unwell, plus it’s very flammable and explosive.
  3. Musty. If your furnace smells musty, you might have mold and mildew developing in your ductwork. We recommend having your ductwork inspected and cleaned if necessary.

Now that you are aware which furnace smells are normal and which ones aren’t, you’re ready to take care of your new furnace. If you have concerns about a weird odor, our AZ Air Conditioning and Heating HVAC technicians can help you. Call us at 800-296-5088 to schedule your appointment now. We offer quality, affordable furnace repair in Los Angeles and surrounding communities.