The hot and humid summers in Greater Richmond, Virginia, can get muggy and uncomfortable. You change the thermostat to a ideal temperature. The AC kicks on as expected. But, even after your AC runs, your home still feels moist and clammy.
Now, you’re cool and damp.
It can be frustrating when the air conditioner seems to operate normally, yet your home doesn't actually feel pleasant. If your rooms feel humid but thermostat says cool, you're in good company. It happens a lot.
Why is this? Temperature and humidity are two different factors in indoor comfort. Your temperature only tells you how hot or cold the air is within your home. It doesn't measure how much moisture is in the air. When indoor moisture is extremely high, your home can feel warmer than the thermostat indicates, due to indoor humidity problems.
In this blog, you'll learn how humidity affects your indoor comfort levels, common reasons your home feels humid even when the temperature is right and simple troubleshooting steps you can try to reduce humidity in your Greater Richmond, Virginia, home. That way, you’ll know when it’s time to call experts like the team at Herman Allen Plumbing, Heating & Cooling for professional help.
Why Your Home Can Feel Humid Even Though the Temperature Is Right
The temperature is only part of what makes your living space enjoyable. The amount of moisture in the air is another important consideration. The majority of homes are generally more comfortable when indoor relative humidity is between 30% and 50%. When a home has high indoor humidity, the air feels warmer, heavier and stickier—even if the actual air temperature is cool.
High humidity can also encourage dangerous mold growth, mildew, bad smells and other indoor air quality issues. That's why your house feels humid but the AC is running—your system may be chilling the air without pulling out enough moisture.
Home Feels Humid? Here are 8 Common Causes
Residing in Greater Richmond, Virginia, high humidity can be a frequent concern.
Countless area homeowners deal with the same question: Why does my home feel so humid?
There are a variety of common explanations. Identifying what's creating excess humidity is a key first step toward solving the problem.
Below are several common reasons for indoor humidity problems in Greater Richmond, Virginia:
1. Oversized Air Conditioning
An air conditioner that's bigger than your home needs cools down your home too quickly. The problem is an oversized AC often doesn’t eliminate humidity effectively because it turns off before completing a complete cooling cycle.
2. Blocked Air Filter
A dirty air filter limits airflow throughout your heting and cooling system. This makes it more difficult for your equipment to control humidity while cooling your home.
3. Clogged Condensate Drain
Your air conditioner collects moisture from your home’s air and and then it drains from the equipment through a condensate line. If that drain becomes clogged, moisture can't leave the system properly, contributing to increased humidity levels.
4. Icy Evaporator Coil
The evaporator coil pulls both heat and moisture from your home's air supply. Dirt and grime on the coil limits its effectiveness and often requires professional AC repair services to fix.
5. Loose Ductwork
Ductwork moves cool air throughout your living space. Leaks in ductwork can allow warm, humid air from attics, crawl spaces or other uninhabited areas into your HVAC system. This added moisture makes it more difficult to maintain comfortable humidity levels.
6. Thermostat Fan Running on “On” Switch to “Auto”
If your thermostat fan is set to "On" instead of "Auto", the blower keeps running after the cooling cycle ends. This can blow moisture collected on the evaporator coil back into your home instead of giving it time for it to drain away.
7. Unusually Humid Weather
During the area’s especially humid summer weather, your HVAC system has to run longer to remove moisture from the air. Even when your air conditioning is operating correctly, sometimes your home feels muggy because outdoor humidity keeps entering your home through doors, windows and normal air leakage.
8. Poorly Maintained Heating and Cooling Equipment
As home comfort systems get older, they often become less effective at controlling humidity. HVAC maintenance enhances performance, improves efficiency and helps detect worn-out parts. Neglecting regular air conditioning maintenance can limit performance, including your system's ability to reduce moisture.
Things to Check Before Scheduling an HVAC Technician
If your home feels humid, there are a few simple things you can check before requesting service. These DIY tips are easy ways to improve indoor comfort by helping your heating and cooling system remove moisture more effectively.
- Replace a dirty air filter. A clean heating and cooling system air filter allows proper airflow, helping your system circulate air through and dehumidify your home better.
- Verify the thermostat fan is set to Auto. This allows moisture to leave the system after each cooling cycle instead of being circulated back into your living spaces.
- Make sure supply and return vents are open and unblocked. Rugs or furniture over the vents or closed vents can restrict airflow throughout your home.
- Check for water around the indoor unit. Water by your AC equipment may indicate a clogged condensate drain or another drainage issue.
- Pay attention to how your air conditioner should run. If the AC is short cycling or turning on and off frequently, or it seems to run constantly without improving comfort, it's time to have the system checked by a professional.
Even if your thermostat still says cool but house feels humid, do not attempt repairs involving refrigerant, electrical components or internal HVAC parts. Do-it-yourself fixes may be tempting, but these repairs require professional training and should always be handled by a qualified HVAC technician.
Should You Get a Whole-Home Dehumidifier?
If you struggle with humidity in your house during summer or year-round moisture problems, a whole-home dehumidifier may be the right choice. Unlike portable units that only help reduce moisture in one room or area, a whole-home dehumidifier connects to your HVAC system to control humidity throughout your entire house.
Just one of Herman Allen Plumbing, Heating & Cooling's indoor air quality solutions, a whole-home dehumidifier makes your home more comfortable while helping reduce the risk of mold, musty odors and excess moisture. It can be extremely beneficial for homes in humid climates or properties that still have humidity even with a properly functioning AC.
When You Need to Request HVAC Service
Persistent HVAC humidity issues often are caused by an hidden problem that requires professional repair. The technicians at Herman Allen Plumbing, Heating & Cooling will inspect refrigerant charge, airflow, blower performance and evaporator coils to identify why your system isn't removing humidity effectively. They can also inspect ductwork, condensate drainage and overall system sizing to find the root cause.
We also can get you set up with a heating and cooling tune-up. Regular seasonal tune-ups help identify small problems before they become major breakdowns. That's why Herman Allen Plumbing, Heating & Cooling offers an HVAC maintenance plan that makes regular inspections budget-friendly and stress-free.
If simple troubleshooting doesn't fix the indoor humidity problems, trust Herman Allen Plumbing, Heating & Cooling for dependable HVAC service in Greater Richmond, Virginia.
Schedule HVAC service online or call 804-979-2758 today to restore your comfort.