The Three Furnace Odors You Shouldn’t Ignore

Furnace odors can be a sign that there’s something wrong with your heating system. It can indicate anything from a minor issue, like dust buildup around the blower, to a significant problem, such as faulty wiring.

Some smells you should not ignore. If you notice an unusual smell, contact our furnace service technician in Lockport at the right time to fix the issue quickly.

Three Furnace Odors That You Shouldn’t Ignore!

Your furnace could be emitting an odor that you might not even realize is a problem, but it could be a sign of a more significant issue. Here are three furnace odors that you should never ignore. Call our heating service experts in Galliano without delay if you notice them:

  • Burning rubber, melting plastic, or hot oil smell
    A failing belt in the furnace often causes a burning rubber smell. These belts are responsible for turning the blower and other mechanical parts. When the blower belt breaks or wears out, it can produce a burning rubber smell as it rubs against other components. If you are in such a situation, contacting us for a heating service in Galliano is the best choice!
    Melting plastic smell is another common furnace odor that should not be ignored. This smell can indicate that plastic components in the furnace, such as the insulation on the wires, are overheating and melting. It can be a serious issue, as melted plastic can cause a short circuit or fire.
    A hot oil smell can indicate a problem with the furnace’s oil supply or that the furnace is overheating. If you smell hot oil, turn off your furnace and call us for professional heating service in Galliano for repair.
  • Dusty furnace odors
    Dusty furnace odors are one of the most common types of furnace odors, and many things can cause them:
  • Worn-out or damaged filters in the blower compartment or on the return air ducts.
  • Blocked ductwork that prevents fresh air from coming into your home.
  • Poorly insulated ductwork that allows heat from your house to escape into your attic or crawl space.
  • Dirty condenser coils.
  • The most common way to prevent dusty furnace odors is to weekly clean your air filters by getting a furnace service in Lockport (at least once per month), change your filter when it gets dirty (usually every three months), and make sure your return air ducts are free from blockages.
  • Rotten eggs
    A rotten egg smell can be a warning sign of a gas leak. If you smell this odor, leave the area immediately and call our furnace service experts in Lockport. A sulfur buildup in your ductwork may also cause the odor. It can happen if you need more air flowing through your ducts to distribute heat and air conditioning throughout your house correctly.
    To fix this problem, make sure that your furnace is running at high speed, which will push more air through your ducts. You can also check with our HVAC professional, who can perform a heating repair in Raceland, LA, to clean out any debris or sulfur buildup causing the problem.


When you need a furnace repair, there are many things to consider. You want the best service for your money, and you want to ensure that the company you choose is trustworthy and will take care of your needs.

You can trust Martin’s Heat And Air to provide prompt, professional heating repair in Raceland, LA, with service at a price that fits your budget. We are dedicated to making sure that our customers are happy with our work while they stay warm during this winter season. Call (985) 632-6428 and schedule a service today!