Common Odor Issues with High Efficiency HVAC Units & How to Prevent Them

Common Odor Issues with High Efficiency HVAC Units & How to Prevent Them

After investing in a high efficiency HVAC unit, you could very well be surprised when your system starts sending out an unpleasant odor. “Dirty sock syndrome” and other odor-based problems are common in high efficiency HVAC units. Read on to learn the causes of HVAC odors and what can be done to stop them.

Causes of Odors in High Efficiency HVAC Units

  • Bacteria and microorganisms: Bacteria and microorganisms growing on your HVAC system are the most common sources of bad odors.
  • Debris in the ductwork: All sorts of debris in your ductwork and on your equipment can cause bad smells, especially when heated.
  • Food or other materials in the vents: Food and other materials that fall into your system’s vents can decay and create bad odors. If other strong-smelling substances, such as cleaners or solvents, leak into the vents or are used near return air registers, these smells can also be distributed throughout your home.
  • Animals and animal waste: A dead mouse, bird, or other animal in your ductwork can result in unpleasant odors. Animal waste is also known to contribute to bad smells.

Preventing Odors in High Efficiency HVAC Units

  • Change the filters: Any odors trapped in the air filters can travel into your house. To prevent this from occurring, put in fresh filters.
  • Clean the coils: Have preventive maintenance conducted and include a thorough cleaning of your evaporator coils. Duct cleaning may be another option if there’s any foul-smelling materials in your ducts.
  • Apply a growth inhibitor: Try coating your coils, drip pans and other system surfaces with a growth inhibitor that stops the spread of bacteria.

Contact us today for more information about eliminating odor problems with high efficiency HVAC units.



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