The humid summers in Grass Valley, California, can get muggy and uncomfortable. You change the thermostat to a comfortable temperature. The air conditioner begins running right away. But, even after your AC runs, your home still feels humid and uncomfortable.
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. Local homeowners often have this experience.
The reason is simple: Temperature and humidity are two different measurements in your home. Your temperature only tells you how hot or cold the air is within the room. It doesn't measure how much humidity is in your home. When moisture levels are very high, your home can feel several degrees warmer than the thermostat indicates, due to indoor humidity problems.
In this article, you'll learn how humidity affects your indoor comfort levels, common reasons your home feels humid even when the temperature is comfortable and simple troubleshooting steps you can try to reduce humidity in your Grass Valley, California, home. That way, you’ll know when you should reach out to experts like the team at A&A Air Conditioning, Heating & Sheet Metal for support.
Why Your Home Can Feel Humid Even Though the Temperature Is Nice and Cool
Your home's temperature is only part of what makes your house comfortable. The amount of moisture in the air is also an equally important factor. Many homes are generally more comfortable when indoor relative humidity falls 30-50 percent. When a home has high indoor humidity, the air feels warmer, more oppressive and stickier—even if the actual air temperature is cool.
Too much indoor 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 chilling the air without removing enough moisture.
Home Feels Humid? Here are 8 Common Causes
Residing in Grass Valley, California, excess moisture can be a challenge.
Many area homeowners deal with the same question: Why does my house feel humid?
There are several common causes. Identifying what's creating excess moisture is a good first step toward fixing the problem.
Below are several common reasons for indoor humidity problems in Grass Valley, California:
1. AC is Too Large
An AC unit that's bigger than your home needs lowers the temperature in your home too quickly. The problem is an oversized AC often doesn’t remove humidity effectively because it shuts off before completing a full cooling cycle.
2. Blocked Air Filter
A dirty air filter restricts 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 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 excess moisture indoors.
4. Dirty Evaporator Coil
The evaporator coil extracts both heat and moisture from your home's air. Dirt and grime on the coil limits its effectiveness and often requires professional AC repair services to fix.
5. Leaky Ductwork
Ductwork transports cool air throughout your home. Gaps in ductwork can allow 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 conditions.
6. Thermostat Fan Running on “On” Change setting to “Auto”
If your thermostat fan is running on "On" instead of "Auto", the blower continues running after the cooling cycle ends. This can blow moisture collected on the evaporator coil back into your home instead of allowing it to drain away.
7. Extremely Humid Weather
During the area’s very humid summer weather, your HVAC system has to work harder to remove moisture from the air. Even when your AC is operating correctly, sometimes your home feels muggy because outdoor humidity continues to seep into your home through doors, windows and normal air leakage.
8. Older HVAC Equipment
As HVAC systems wear out over time, they often become less effective at controlling humidity. HVAC maintenance improves performance, boosts efficiency and helps find worn-out parts. Putting off regular air conditioning maintenance can decrease performance, including your system's ability to remove moisture.
Simple Checks to Make Before Scheduling an HVAC Technician
If your home feels humid, there are a few simple things you can check before booking service. These DIY tips are easy ways to improve indoor comfort by helping your AC or heating system remove moisture more efficiently.
- Replace a dirty air filter. A clean HVAC air filter allows proper airflow, helping your system circulate air through and dehumidify your home better.
- Confirm the thermostat fan is set to Auto. This allows moisture to flow out after each cooling cycle instead of being sent back into your living spaces.
- Check to ensure your supply and return vents are open and unblocked. Furniture over the vents or closed vents can restrict 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 air conditioner 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 with refrigerant, electrical components or internal parts. Handling these repairs yourself 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 worth considering. Compared with portable units that only help reduce moisture in one room or area, a whole-home dehumidifier works with your HVAC system to manage humidity throughout your entire house.
Just one of A&A Air Conditioning, Heating & Sheet Metal's indoor air quality solutions, a whole-home dehumidifier keeps your home more comfortable while reducing the risk of mold, musty odors and excess moisture. It can be especially helpful for homes in humid climates or properties that continue to have humidity even with a properly functioning AC.
When It's Time to Request HVAC Service
Home HVAC humidity issues often are caused by an underlying problem that requires professional repair. The technicians at A&A Air Conditioning, Heating & Sheet Metal will evaluate refrigerant charge, airflow, blower performance and evaporator coils to determine why your system isn't removing humidity effectively. They can also evaluate ductwork, condensate drainage and overall system sizing to identify the root cause.
We also can get you on the schedule for a home HVAC tune-up. Routine seasonal tune-ups help find small problems before they become complicated, costly repairs. That's why A&A Air Conditioning, Heating & Sheet Metal offers an HVAC maintenance plan that makes regular inspections cost-effective and hassle-free.
If simple troubleshooting doesn't solve your home’s humidity issues, trust A&A Air Conditioning, Heating & Sheet Metal for dependable HVAC service in Grass Valley, California.
Schedule HVAC service online or call 530-273-1301 today to take care of high indoor humidity issues for good.