If your home suddenly feels sticky or more humid than usual, you may immediately wonder if something is wrong with your air conditioner. While your HVAC system plays an important role in managing indoor humidity, higher humidity levels don’t always mean your equipment is malfunctioning.
During hot, humid, or rainy weather, the outdoor air contains a significant amount of moisture. That moisture naturally makes its way into your home through normal air infiltration, while everyday activities like cooking, showering, doing laundry, and even keeping houseplants can add additional moisture indoors.
Why Isn’t My A/C Removing Enough Humidity?
Your air conditioner removes moisture from the air as a natural part of the cooling process, but there is a limit to how much moisture it can remove. When outdoor humidity remains high for several days or weeks, the amount of moisture entering your home can exceed what your air conditioner can reasonably remove while still maintaining a comfortable temperature.
This can also explain why you may notice humidity concerns with a newer HVAC system even if you didn’t experience them with your previous equipment. Different systems may control humidity differently, and extended periods of humid weather can impact any home.
What Does an HVAC Technician Check?
If you’re concerned about high indoor humidity, the first step is making sure your HVAC system is operating properly. At McNally’s Heating & Cooling, our technicians can inspect important system components and performance factors, including:
- System capacity
- Airflow across the indoor coil
- Refrigerant charge
- Temperature split
- Ductwork and static pressure
- Overall system performance
Once the system has been checked and confirmed to be working correctly, continued humidity may simply be caused by weather conditions, saturated ground around your home or foundation, and the amount of outdoor moisture entering the home.
What Can You Do About High Indoor Humidity?
There are several ways homeowners can help reduce excess moisture. Sealing air leaks can limit humid outdoor air from entering the home. Maintaining consistent thermostat temperatures and normal HVAC cycle times can also help your system remove moisture more effectively.
You can also reduce indoor moisture by using bathroom and kitchen exhaust fans, covering pots while cooking, and making sure your dryer vents outdoors.
For homes that continue to experience high humidity, a professional-grade whole-home dehumidifier may provide additional humidity control and improved comfort.
A comfortable home starts with a properly operating HVAC system. If your home feels unusually humid, McNally’s Heating & Cooling can help determine whether your equipment is operating correctly and recommend solutions that fit your home.
Call McNally’s Heating & Cooling today at 630-363-9067 (St. Charles) or 815-344-0400 (Crystal Lake), or schedule your appointment online. Let our technicians evaluate your home’s humidity and help when needed.
