Why Does My HVAC System Smell Like Dirty Socks?
If you’ve ever turned on your air conditioning and noticed a foul odor that resembles dirty socks, you’re not alone. This unpleasant smell is a common issue known as “Dirty Sock Syndrome,” and it often indicates that your HVAC system needs attention. At Service Hero of Orange County, we frequently handle calls for the best AC repair in Orange related to this exact problem. Understanding the causes behind this stench can help you resolve it quickly and prevent it from returning. What Is Dirty Sock Syndrome? Dirty Sock Syndrome occurs when mold, mildew, and bacteria build up on your HVAC system’s evaporator coils. These contaminants thrive in the dark, damp environment inside your air conditioner. When the system kicks on, it blows that musty, gym-sock smell through your vents and into your home. Common Causes of the Odor Moisture buildup: Excess humidity or poor drainage can leave coils damp, creating the perfect breeding ground for bacteria. Dirty filters: Neglected air filters allo...