The warm summers in Cape Girardeau, Missouri, can get muggy and uncomfortable. You adjust the thermostat to a ideal temperature. The air conditioning starts up automatically. But, even after your air conditioner cycles, your home still feels humid and uncomfortable.
Not a great feeling.
It can be annoying when the air conditioner seems to be doing its job, yet your home doesn't actually feel very comfortable. If your rooms feel humid but thermostat says cool, you're not the only homeowner. Local homeowners often have this experience.
Why? Temperature and humidity are two different factors in indoor comfort. Your temperature only tells you how warm or cool the air is within the room. It doesn't measure the amount of moisture in the air. When humidity levels are too high, your home can feel much hotter than the thermostat indicates, due to indoor humidity problems.
In this blog, you'll learn how humidity affects your home comfort, common reasons your home feels humid even when the temperature is right and simple troubleshooting steps you can try to reduce humidity in your Cape Girardeau, Missouri, home. That way, you’ll know when to contact experts like the team at Prestige Plumbing and Air for support.
Why Your Home Can Feel Humid Even When the Temperature Is Right
Your home's temperature is only part of what makes your home enjoyable. The amount of moisture in the air is an extremely important consideration. Many homes are the most comfortable when indoor relative humidity is between 30% and 50%. When a home has high indoor humidity, the air feels hotter, denser and stickier—even if the actual air temperature is cool.
Too much indoor moisture can also contribute to 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 cooling the air without extracting enough moisture.
8 Common Reasons Your Home Feels Humid
Residing in Cape Girardeau, Missouri, high humidity can be a challenge.
Many area homeowners deal with the same question: Why does my home feel so humid?
There are several common causes. Determining what's creating excess humidity is a good first step toward fixing the problem.
Here are several common reasons for indoor humidity problems in Cape Girardeau, Missouri:
1. AC is Too Large
An AC unit that's too big for your home lowers the temperature in your home too quickly. The problem is an oversized AC often doesn’t remove humidity effectively because it stops operating before completing a full cooling cycle.
2. Dirty Air Filter
A dirty air filter limits airflow throughout your heting and cooling system. This makes it harder for your equipment to control humidity while cooling your home.
3. Obstructed Condensate Drain
Your AC removes moisture from your indoor air and that excess water drains from the unit through a condensate line. If that drain becomes blocked, moisture can't exit the system properly, contributing to increased humidity levels.
4. Frozen Evaporator Coil
The evaporator coil removes both heat and moisture from your home's air. Dirt and grime on the coil reduces its effectiveness and often requires professional AC repair services to restore performance.
5. Damaged Ductwork
Ductwork transports cool air throughout your living space. Openings in ductwork can pull warm, humid air from attics, crawl spaces or other uninhabited areas into your HVAC system. This added moisture makes it harder to maintain comfortable humidity conditions.
6. Thermostat Fan Set to “On” Switch to “Auto”
If your thermostat fan is running on "On" instead of "Auto", the blower continues running after the cooling cycle ends. This can push moisture collected on the evaporator coil back into your home instead of allowing it to drain away.
7. Exceptionally Humid Weather
During the area’s very humid summers, your HVAC system has to work harder to remove moisture from the air. Even when your air conditioning is functioning as designed, sometimes your home feels muggy because outdoor humidity keeps entering your home through doors, windows and normal air leakage.
8. Aging Heating and Cooling Equipment
As heating and cooling systems age, they often become less efficient at controlling humidity. HVAC maintenance enhances performance, boosts efficiency and helps find worn-out parts. Skipping regular air conditioning maintenance can reduce performance, including your system's ability to remove moisture.
Things to Check Before Calling an HVAC Technician
If your house feels humid, there are a few simple things you can check before scheduling service. These strategies are easy ways to improve indoor comfort by helping your HVAC system remove moisture more effectively.
- Replace or inspect the air filter. A clean heating and cooling system air filter allows proper airflow, helping your system circulate air through and dehumidify your home effectively.
- Make sure the thermostat fan is set to Auto. This allows moisture to leave the system after each cooling cycle instead of being sent back into your living spaces.
- Check that supply and return vents are open and unobstructed. Furniture over the vents or closed vents can restrict airflow throughout your home.
- Look for water around the indoor unit. Water by your AC equipment may signal a clogged condensate drain or another drain problem.
- Know how your AC 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 with refrigerant, electrical components or internal parts. DIY repairs may be tempting, but these repairs require specialized training and should always be handled by a qualified HVAC technician.
Does Your Home Need a Whole-Home Dehumidifier?
If you deal with humidity in your house during summer or year-round moisture problems, a whole-home dehumidifier may be the right choice. As opposed to portable units that only help reduce moisture in one room or area, a whole-home dehumidifier connects to your HVAC system to manage humidity throughout your entire house.
Just one of Prestige Plumbing and Air's indoor air quality solutions, a whole-home dehumidifier keeps your home more comfortable while lowering the risk of mold, musty odors and excess moisture. It can be extremely beneficial for homes in damp climates or properties that struggle with humidity even with a properly functioning air conditioner.
Signs It's Time to Schedule HVAC Service
Ongoing HVAC humidity issues often trace back to an underlying problem that needs professional repair. The technicians at Prestige Plumbing and Air will check refrigerant charge, airflow, blower performance and evaporator coils to find why your system isn't managing humidity effectively. They can also check ductwork, condensate drainage and overall system sizing to pinpoint the root cause.
We also can get you set up with a home HVAC tune-up. Routine seasonal tune-ups help identify small problems before they become major breakdowns. That's why Prestige Plumbing and Air offers an HVAC maintenance plan that makes regular inspections easy and affordable.
If basic troubleshooting doesn't fix the indoor humidity problems, trust Prestige Plumbing and Air for dependable HVAC service in Cape Girardeau, Missouri.
Schedule HVAC service online or call 573-266-2048 today to fix your indoor humidity issues once and for all.