What’s Growing on Your Indoor Coil?


There are two coils in any air conditioner or heat pump; one coil you can see and one you can’t. That old saying, “out of sight, out of mind,” is true; homeowners rarely think about the inside of their air conditioner, or what could be growing there. Tiger Services, however, sees the inside of many different units. Keep reading to find out what could be inside your air conditioner or heat pump, and what to do about it.

Is My Coil Clean?

When there’s dirt on the floor, or dishes in the sink, you know it’s time to clean. It’s harder to tell when you need to clean the parts of your home you can’t see. There are parts of your air conditioner and heat pump that live inside your home, including the evaporator coil. While you can’t see it, mold could be growing on this coil, hampering your air conditioner and introducing mold spores into your air. Ask yourself these questions:

  • Do you change your air filter regularly? (Roughly once a month during ‘air conditioning season’)
  • Is your air conditioner or heat pump experiencing regular breakdowns?
  • Has your energy bill gone up in price, despite normal use?

What to Do About a Dirty Coil


Ignoring a dirty coil only makes matters worse. A clogged coil means more work for your unit, which means higher bills, more breakdowns, and a shorter lifespan. If that weren’t enough, you could be exposing your family to harmful mold and dust buildup. The last thing you want is harmful substances in your air conditioner, considering that it pushes air into every room of your house.

If you, or your family, is experiencing asthma or flu-like symptoms, or general fatigue and allergies that don’t add up, you could have mold in your air conditioner, heat pump, or ductwork.

Time to Call the Pros

Cleaning your evaporator coil is not a good DIY project. Manufacturers place the evaporator coil in different places; some are easy to access while others require a thorough knowledge of specific units to reach. The coil fins are sensitive and easily damaged, either through rough handling or poor product choice. Depending on what has collected on your coil, and how tough the buildup is, different methods may be needed to truly clean your evaporator coil. Furthermore, these are active, electrical appliances, and inexperienced workers may harm themselves by electrical shock, or harm the home by starting a fire. A trained professional, like a technician from Tiger Services, is your best bet – they’ll know how to safely work with your appliances, as well as what kinds of products to use.

Since you’re probably not using your air conditioner in these cooler months, now is a great time to give Tiger Services a call at (210) 344-0060 for a professional A/C unit tune-up, including cleaning dirty coils. Know anyone who might need an A/C tune-up? Refer a friend to Tiger Services for a special gift!


Tiger Services Air Conditioning & Heating


111 E. Rhapsody Dr.
San Antonio, TX 78216


(210) 344-0060

Service Hours

8:00 AM - 8:00 PM | 7 Days A Week

Showroom Hours

8:00 AM - 5:00 PM | Mon - Fri

Tiger Services Air Conditioning and Heating Services maintains HVAC Heaters, AC Repairs AC Service and Maintenance and installs New Air Conditioning systems in San Antonio and the surrounding areas.

Tiger Services Air Conditioning and Heating Services is experienced at repairing HVAC and heat systems and have been in the business of keeping San Antonio comfortable since 1990. Tiger Services Air Conditioning and Heating Services at (210) 361-1926 today if you need an air conditioner or heating services. We respect your privacy and will never share your information.

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