The warm summers in Modesto, California, can get muggy and uncomfortable. You change the thermostat to a pleasant temperature. The air conditioner begins running as expected. But, even after your AC operates, your home still feels damp and sticky.
Now, you’re cool and damp.
It can be disappointing when the air conditioner appears to work properly, yet your home doesn't actually feel pleasant. 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 measurements in your home. A temperature only tells you how warm or cool the air is within your home. It doesn't measure the amount of moisture in the air. When indoor moisture is 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 comfortable and basic troubleshooting steps you can try to reduce humidity in your Modesto, California, home. That way, you’ll know when you should contact experts like the team at Jet Electrical, Air Conditioning, Heating & Plumbing for support.
Why a Home Can Feel Humid Even If the Temperature Is Nice and Cool
Your home's temperature is only part of what makes your living space comfortable. Indoor humidity is also an equally important element to consider. Most homes are typically more comfortable when indoor relative humidity falls between 30% and 50%. When a home has high indoor humidity, the air feels less comfortable, denser and stickier—even if the actual air temperature is cool.
High humidity can also promote 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 removing enough moisture.
8 Common Reasons Your Home Feels Humid
Residing in Modesto, California, muggy conditions can be a challenge.
Plenty of area homeowners ask 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 resolving the problem.
Below are several common reasons for elevated indoor humidity in Modesto, California:
1. AC is Too Large
An AC unit that's too big for your home cools down 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. Blocked Air Filter
A dirty air filter restricts airflow throughout your heting and cooling system. This makes it more difficult for your equipment to remove moisture while cooling your home.
3. Clogged Condensate Drain
Your air conditioning 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 exit the system properly, contributing to higher indoor humidity.
4. Icy Evaporator Coil
The evaporator coil removes both heat and moisture from your home's indoor air. Dirt buildup on the coil decreases its effectiveness and often requires professional AC repair services to restore performance.
5. Damaged Ductwork
Ductwork moves cool air throughout your house. Openings in ductwork can pull warm, humid air from attics, crawl spaces or other uninhabited areas into your HVAC system. This extra moisture makes it more difficult to maintain comfortable humidity throughout your home.
6. Thermostat Fan is on “On” Setting Switch to “Auto”
If your thermostat fan is running on "On" instead of "Auto", the blower keeps running after the cooling cycle ends. This can circulate moisture collected on the evaporator coil back into your home instead of letting it to drain away.
7. Unusually Humid Weather
During the area’s very humid and hot summers, your HVAC system has to operate more to remove moisture from the air. Even when your cooling system is functioning as designed, sometimes your home feels muggy because outdoor humidity continually enters your home through doors, windows and normal air leakage.
8. Poorly Maintained HVAC Equipment
As heating and cooling systems age, they often become less efficient at controlling humidity. HVAC maintenance optimizes performance, improves efficiency and helps identify worn-out parts. Neglecting regular air conditioning maintenance can decrease performance, including your system's ability to remove moisture.
What You Can Check Before Calling an HVAC Technician
If your house feels humid, there are several simple things you can check before booking service. These simple troubleshooting steps are easy ways to improve indoor comfort by helping your AC or heating 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.
- Make sure the thermostat fan is set to Auto. This allows moisture to leave the system after each cooling cycle instead of being blown back into your living spaces.
- Check that supply and return vents are open and unblocked. Furniture over the vents or closed vents can limit airflow throughout your home.
- Inspect for water around the indoor unit. Water by your AC equipment may suggest 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 cooling your home like it should, it's time to have the system inspected by a professional.
Even if your thermostat still says cool but house feels humid, do not try repairs involving refrigerant, electrical components or internal parts. Do-it-yourself fixes may be tempting, but these repairs require professional training and should always be performed 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. Compared with 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 Jet Electrical, Air Conditioning, Heating & Plumbing's indoor air quality solutions, a whole-home dehumidifier keeps your home more comfortable while helping reduce the risk of mold, musty odors and excess moisture. It can be especially helpful for homes in humid climates or properties that still have humidity even with a properly functioning air conditioner.
When You Need to Request HVAC Service
Ongoing HVAC humidity issues often are caused by an larger problem that requires professional repair. The technicians at Jet Electrical, Air Conditioning, Heating & Plumbing will evaluate refrigerant charge, airflow, blower performance and evaporator coils to find why your system isn't controlling humidity effectively. They can also check ductwork, condensate drainage and overall system sizing to identify the root cause.
We also can get you on the schedule for an HVAC tune-up. Seasonal seasonal tune-ups help find small problems before they become complicated, costly repairs. That's why Jet Electrical, Air Conditioning, Heating & Plumbing offers an HVAC maintenance plan that makes regular inspections cost-effective and hassle-free.
If basic troubleshooting doesn't fix the indoor humidity problems, trust Jet Electrical, Air Conditioning, Heating & Plumbing for dependable HVAC service in Modesto, California.
Schedule HVAC service online or call 209-618-4595 today to restore your comfort.