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    4 HVAC Odors to Look Out for This Winter

    Wednesday, December 07, 2016


    When it comes to heating and air conditioning, what you smell can be even more important than what you see.

    Although you may have experienced unexpected odors coming from your heating and air conditioning units in the past, you might not have realized what they meant. Not all HVAC smells are worth worrying about, but some odors can be warning signs indicating a problem with your system. There are some in particular that are well worth “smelling” out this winter.

    Heating and Air Conditioning Smells that Need Your Attention

    Some smells are harmless, and others might not mean anything is wrong at the moment. But sometimes they can indicate trouble down the road. If you become aware of certain smells, it’s important to get a qualified professional to inspect your system. Getting a head start can help you avoid the system issues that could arise later on. Do you notice any of these odors?

    • It smells like burning dust: Dust builds up near the furnace's burner when it's not in use and might burn when it heats up. This brief flaming creates an odor, as well as remnants that could build up over time and eventually lead to damage. Cleaning dust on a regular basis can keep this from happening.
    • It smells like rotten eggs: A particularly unpleasant odor, this can be evidence of a leak in your heating system if you use natural gas. If you smell this, you should shut off your furnace and call a professional immediately, as it can be very dangerous if left alone.
    • It smells like oil: This odor can mean a filter clogged by dust and dirt. However, if you change your filter and the scent still doesn't go away, it could be a sign of a potential furnace leak. This possibility is highly dangerous and needs to be handled by a professional.
    • It smells like burnt plastic or metal: This smell might not be a cause for concern, as it can be a result of objects falling into your air ducts. On the other hand, it could also mean a part of your HVAC system is malfunctioning.

    Don’t Take Risks with Your Heating and Air Conditioning System

    When in doubt, don’t leave it to chance. A smell might not seem like a big deal, but if it’s ignored it may lead to a serious and expensive issue later on. For more information about heating and air conditioning odors, or to schedule a service get in touch with our team at Certified Electric, Inc., today!