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Cooper Mechanical Blog

What's the HVAC Smell When I Turn on the Heat?

Posted by: Cooper MechanicalFriday, December 14, 2018

HVAC smells may mean trouble


Can't You Smell That Smell?

When we talk to customers, we mention that a full HVAC inspection involves all five senses: sight, smell, hearing, touch, and taste. Well, maybe not taste, but the point is that the paying attention to the senses can clue you in to potential issues before they snowball.

Many folks are familiar with a smell associated when the heat kicks on for the first time in a while. That burning, electric smell that lasts for a few moments and then dissipates reminds me of the baseboard heater of my childhood home. It was usually just the furnace burning off the dust that had accumulated during inactivity. It lasted for a moment and was gone. In this case, it was relatively harmless and normal. But when might a smell indicate a larger problem and warrant a professional inspection?

Burning Electrical Smells

If the electrical odor persists, you should call a professional immediately. One possibility is faulty wiring, which if left unchecked, could lead to an electrical fire. It's also possible that the smell is coming from an overheating mechanical component in your HVAC system. It's best to turn everything off and call a trusted HVAC professional before an electrical hazard occurs or a part of your system burns out.

Moldy, Musty Smells

South Carolina has no shortage of heat and humidity. And with recent hurricanes and flooding, all the moisture has created the perfect breeding ground for mold and mildew. Mold growth in HVAC ductwork requires professional cleaning. The good news is that your unit isn't at fault. The bad news is that circulating mold spores can be harmful to your health.

Rotten Egg Smells

This is a serious one. A rotten egg smell usually means there is a natural gas leak. A gas leak could lead to an explosion, so get out of your house and call the fire department. An HVAC professional can identify the source of the leak and repair it, once cleared to do so by safety officials.

Dead Animal Smells

It's hard to describe this odor, but you'll notice it. HVAC ducts and vents can be cozy nesting areas for all types of rodents and birds. Animals can clog vents, which in turn makes your HVAC system work harder to maintain indoor room temperatures. If you have an animal decomposing in your HVAC system, you'll either need to remove it yourself or call a pest control company to handle it for you.

Cooper Mechanical Services

Don't ignore the strange smells coming from your HVAC system. They can be an early warning sign of bigger problems to come. Cooper Mechanical Services will inspect your system, diagnose the problem, and fix it quickly. Our family business has been serving the Myrtle Beach area's HVAC, refrigeration, and electrical needs since 1989. To speak with a member of our team, Call Cooper