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Why Your Air Ducts Smell and How To Fix It

15 Jun Why Your Air Ducts Smell and How To Fix It

Posted at 19:16h in Blog by

Have you ever wondered why your air ducts smell from time to time? Are you interested in learning about the causes of different, unpleasant fragrances? Here is some insight on smelly HVAC systems and how to fix them before issues become more severe.

Electrical Smell

An “electrical” smell is hard to explain, but many compare it to fresh-cut grass, bacon, or baked bread. Others simply describe it as an “overheating fragrance.” Regardless, this scent is a sign of clogging in your HVAC filters.

When too much debris builds up, airflow becomes less efficient and causes your HVAC to work overtime. This, in turn, leads to overheating and, eventually, system failure. Faulty wiring is another cause for this electrical smell, so get your system evaluated by a professional service for better insight on the issue.

Oily Smell

Oil is pungent yet faint, so many individuals might not even notice this smell; however, it’s a clear sign of an oil leak in your HVAC system. Additionally, it can also indicate issues with the oil burner mechanism. While you may easily identify and locate the leak in question, it’s best to hire an expert for repairs.

Gas Smell

There are two distinct gas smells that some air ducts can emit—burning gas and “rotten egg.” A burning gas scent is actually normal for air circulation systems and not a cause for concern. This fragrance is only present when you first turn on the heater and the dust is burned off the exchanger. However, a burning gas smell that doesn’t originate from the air ducts is a clear indication of an HVAC leak.

While burning gas scents aren’t signs of danger, a rotten egg smell requires immediate action to rectify the issue. This sulfur scent typically means natural gas is leaking in or nearby your house. Natural gas is detrimental to your physical and mental well-being, especially over long exposure periods. If you notice a rotten egg smell, leave home as soon as possible and contact your gas company to shut off your supply. Then, pursue professional HVAC and duct repair services to ensure the issue is resolved.

Musty Smell

Must is the most common air duct smell individuals complain about, and for good reason—this distinct, moldy scent is unpleasant and potentially dangerous. Mildew and mold are the main culprits as they build up over time, especially if condensation isn’t properly draining while the AC runs.

Any sort of leak that introduces moisture into your vents can also cause a musty smell. Exposure to mold and mildew can affect the health of your respiratory and immune systems, along with your overall mental health. When you notice this scent, have your HVAC system cleaned by a professional service.

Ultimately, the best way to remedy air duct smells is by hiring a professional service to fix it quickly. We at Duct Squads provide expert care to solve your HVAC problems effectively and efficiently. Check out our quality services today for all your air duct needs.

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