The warm summers in Moline, Illinois, 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 runs, your home still feels moist and clammy.
That’s not very comfortable.
It can be disappointing when the air conditioner appears to work properly, yet your home doesn't actually feel very comfortable. 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 measurements in your home. The temperature only tells you how warm or cool the air is within the space. It doesn't measure how much humidity is in your home. When indoor moisture is too high, your home can feel much hotter than the thermostat indicates, due to indoor humidity problems.
In this guide, you'll learn how humidity affects your home comfort, common reasons your home feels humid even when the temperature is correct and simple troubleshooting steps you can try to reduce humidity in your Moline, Illinois, home. That way, you’ll know when you should call experts like the team at Freed Heating & Air Conditioning for professional help.
Why Your Home Can Feel Humid Even Though the Temperature Is Nice and Cool
The temperature is only part of what makes your house pleasant. Indoor humidity is another important consideration. The majority of homes are typically more comfortable when indoor relative humidity is 30-50 percent. When a home has high indoor humidity, the air feels warmer, heavier and stickier—even if the actual air temperature is cool.
Excess moisture can also encourage dangerous mold growth, mildew, unpleasant odors 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.
Home Feels Humid? Here are 8 Common Causes
Living in Moline, Illinois, muggy conditions can be a challenge.
Plenty of area homeowners deal with the same question: Why does my house feel humid?
There could be multiple reasons. Understanding what's creating excess moisture is a good first step toward solving the problem.
Below are several common reasons for elevated indoor humidity in Moline, Illinois:
1. AC is Too Large
An AC that's bigger than your home needs cools your home too quickly. The problem is an oversized AC often doesn’t reduce humidity effectively because it turns off before completing a proper cooling cycle.
2. Dirty Air Filter
A blocked air filter limits airflow throughout your HVAC system. This makes it harder for your equipment to extract humidity while cooling your home.
3. Clogged Condensate Drain
Your air conditioner removes moisture from your home’s air and drains it outside through a condensate line. If that drain becomes restricted, moisture can't exit the system properly, contributing to excess moisture indoors.
4. Icy Evaporator Coil
The evaporator coil extracts 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 fix.
5. Damaged Ductwork
Ductwork transports cool air throughout your home. Leaks in ductwork can pull warm, humid air from attics, crawl spaces or other unconditioned areas into your HVAC system. This added moisture makes it more difficult to maintain comfortable humidity conditions.
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 letting it to drain away.
7. Exceptionally Humid Weather
During the area’s especially humid summer weather, your HVAC system has to operate more to remove moisture from the air. Even when your air conditioner is operating correctly, sometimes your home feels muggy because outdoor humidity keeps entering your home through doors, windows and normal air leakage.
8. Aging HVAC Equipment
As HVAC systems wear out over time, they often become less effective at controlling humidity. HVAC maintenance enhances performance, increases efficiency and helps find worn-out parts. Putting off regular air conditioning maintenance can decrease performance, including your system's ability to control moisture.
Simple Checks to Make Before Calling an HVAC Technician
If your home feels humid, there are a few simple things you can check before requesting service. These simple troubleshooting steps are easy ways to improve indoor comfort by helping your HVAC system remove moisture more efficiently.
- Replace a dirty air filter. A clean HVAC air filter allows proper airflow, helping your system condition and dehumidify your home better.
- Verify the thermostat fan is set to Auto. This allows moisture to drain away after each cooling cycle instead of being sent back into your living spaces.
- Make sure supply and return vents are open and unobstructed. Rugs or furniture over the vents or closed vents can restrict airflow throughout your home.
- Inspect for water around the indoor unit. Water near your AC equipment may indicate a clogged condensate drain or another drainage-related issue.
- Know how your air conditioner should run. If the AC is short cycling or turning on and off continuously, or it seems to run constantly without cooling your home like it should, it's time to have the system evaluated by a professional.
Even if your thermostat still says cool but house feels humid, do not attempt repairs involving refrigerant, electrical components or internal parts. Handling these repairs yourself may be tempting, but these repairs require advanced training and should always be handled by a qualified HVAC technician.
Does Your Home Need 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 a good option. As opposed to portable units that only remove humidity from one room or area, a whole-home dehumidifier works with your HVAC system to control humidity throughout your entire house.
Just one of Freed Heating & Air Conditioning's indoor air quality solutions, a whole-home dehumidifier makes your home more comfortable while reducing the risk of mold, musty odors and excess moisture. It can be especially helpful for homes in damp climates or properties that continue to have humidity even with a properly functioning cooling system.
When You Need to Book HVAC Service
Ongoing HVAC humidity issues often point to an underlying problem that needs professional repair. The technicians at Freed Heating & Air Conditioning will evaluate refrigerant charge, airflow, blower performance and evaporator coils to determine why your system isn't managing humidity effectively. They can also evaluate ductwork, condensate drainage and overall system sizing to pinpoint the root cause.
We also can get you scheduled for an HVAC tune-up. Regular seasonal tune-ups help catch small problems before they become complicated, costly repairs. That's why Freed Heating & Air Conditioning offers an HVAC maintenance plan that helps make regular inspections budget-friendly and stress-free.
If basic troubleshooting doesn't solve your indoor humidity problems, trust Freed Heating & Air Conditioning for dependable HVAC service in Moline, Illinois.
Schedule HVAC service online or call 309-762-3641 today to take care of high indoor humidity issues for good.