AC Smelling Like Feet: Know the Reason

What is that offensive odor? A bad sign is an indication of a poorly functioning air conditioner. Even though you rely on your AC to keep you cool, there are situations when an air conditioner smells so bad that you must turn it off.

Any HVAC contractor in Palmdale would understand precisely what you mean if you call them and explain that your air conditioner smells like dirty socks. In business, the term “dirty sock syndrome” is frequently used.

Causes of the Foot-Like Odor in the Air Conditioner:

  • Typically, when dealing with a dirty or clogged air conditioner, we detect the scent of stinky socks or feet. The smell is caused by standing water that isn’t draining correctly, builds up, and begins to smell.
  • When your air conditioner emits an unpleasant, mold- or mildew-like odor right after you turn it on, this is known as “Dirty Sock Syndrome.”
  • This occurs when dirt, dust, and moisture accumulate on the evaporator coil of your air conditioner, which encourages the growth of germs and mold. The bacteria and mold are blown into your house when your air conditioner starts.
  • The spring is when Dirty Sock Syndrome usually happens because your air conditioner runs less frequently and has more time for moisture, dust, and grime to build up on the evaporator coil in between cycles. Call a specialist for HVAC tune-up in Palmdale.

When Is It Possible?

Because your air conditioner operates less frequently in the spring, there is more time for moisture, debris, and dust to accumulate on the evaporator coil between cycles. This problem can also arise if you utilize a heat pump to cool and heat your house in the fall. It endangers the security of the air in your home in addition to being irritating and annoying.

If germs and mold are allowed to spread through the air in your home, members of your family who are allergic to it or sensitive to it may start to experience symptoms.

Ways To Fix It

In addition to being a smelly annoyance, dirty sock syndrome can harm your house’s indoor air quality. Members of your household who are allergic or mold sensitive may begin experiencing symptoms if bacteria and mold are allowed to spread through the air in your home.

  • Thankfully, the cure for dirty sock syndrome is relatively simple. Arrange an HVAC Service Lancaster with a specialist since dirty evaporator coils are the root of dirty sock syndrome.
  • Depending on how dirty the evaporator coil is, cleaning it or replacing it will require your AC repair. If your air conditioner’s warranty hasn’t expired, it can still cover the installation of a new evaporator coil.
  • Once the evaporator coil in your air conditioner is operating correctly, it’s essential to take precautions to avoid future instances of Dirty Sock Syndrome. These actions consist of:
  • Arranging routine maintenance for your air conditioner.
  • Frequently inspecting and cleaning your air filters.
  • A high-performance air filter upgrade.
  • Cleaning your ducting with a professional.


The cooling experts at DAC Heating and Air can immediately eliminate the stink coming from your musty air conditioner. To book an appointment or to ask any inquiries, get in touch with the HVAC contractor in Palmdale by dropping us a mail here or by calling 661-449-1527.