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6 Reasons Why The Furnace Smells Weird

Furnace and other heating systems keep you comfortable during the winter season. As a homeowner, you should maintain the heating system to ensure it functions perfectly throughout the winter.

Sometimes, your furnace system starts to smell like it is burning. In such cases, some may think there is no issue with it, and that with time, the system will get back to normal, but unfortunately, this is not true. You might actually need furnace service in Orlando, FL, to fix the repair issue.

Reasons Why Your Furnace Smells Like it is Burning

Here are some common reasons that are causing the furnace to smell like it is burning, as per our experienced experts at heat pump services in Orlando, FL,

  • Burning Dust

When the furnace is turned on for the first time after a while, there is a non-hazardous fragrance. During the summer break, dust gathers in the furnace system’s components.

Therefore, the first time you turn on the furnace, it burns the dust that has gathered on the surface. The smell will disappear within a few minutes or hours.

  • Clogged Air Filter

Experts recommend replacing the air filters at the beginning of the winter season. During the break, the dust collects on the air filter and restricts the air passage.

Due to blockage in the air filter, the blower motor has to work harder to reach the thermostat temperature. The burning smell is sometimes due to an overheated blower motor trying to push the air through the blocked filters.

  • Electrical Issues

Overheating the furnace causes a safe operation in the furnace system to shut it off. Your family’s safety is seriously jeopardized if the safety procedures are flawed. If you don’t address the problems with the electrical circuits and cables right away, they could spark a fire.

If the burning electrical odor is coming from the vent, contact the furnace service in Orlando, FL, so that they can inspect the wiring and electrical board.

  • Burning Plastic

A burning smell means that external particles have entered the furnace system. You can visually inspect the system to discard whatever is inside the system. Plastic fumes are harmful to your and your family’s health.

  • Oil or Smoke Odor

The smell of oil and smoke is an unalarming smell in oil furnaces, and you will need to replace the oil filter. Call the HVAC contractor in Orlando, FL, to replace the oil filter quickly. You need to remember one thing: keep the furnace shut down until the technician comes to replace the oil filter.

  • Gunpowder Smell

A gunpowder smell comes when there is an electrical failure in the furnace system components. It is due to overheating. Overheated circuit boards or blower motors may radiate a gunpowder smell. It is better to switch off the system and wait for the technician to come and fix the issues.


Furnace systems are essential to maintain the temperature in your home. So, if you find that your heating system is working ineffectively or inappropriately, report the problem to HVAC contractors in Orlando, FL. Gomez AC Contractors are here to help the residents 24×7 to fix any HVAC issue. Call (703) 906-0982 and schedule an appointment today.