An AC running nonstop is frustrating, especially when the thermostat says that your house is cool. Then, noticing that the air is sticky, damp or heavy despite the constant energy usage can cause your frustrations to boil over.
Air conditioners are supposed to help cool the air and remove humidity. But, feeling the humidity staying high is a sign that the AC system isn’t operating correctly. Inefficient HVAC systems can cause problems with rising electric bills while still leaving you feeling hot and sticky.
Plus, poor humidity regulation can lead to increased mold risks and lower indoor air quality. Doing routine HVAC maintenance can help reduce humidity levels, or you might need to consider a whole-home dehumidifier installation. Either way, you can use this guide to know what to do to improve your home’s comfort and your mood.
Quick Takeaways
- Properly functioning ACs should remove humidity and heat at the same time.
- An oversized AC is a common cause of indoor humidity issues.
- Low refrigerant, clogged filters and dirty coils can reduce the amount of moisture removal that occurs.
- Even a 72-degree house can feel uncomfortable with high humidity.
- Ideally, indoor humidity should stay within a range of 30% to 50%.
- Professional AC repair can fix persistent humidity problems.
Why Does My House Feel Humid Even With the AC Running?
AC systems draw heat from the air to cool your home. Yet, they also play a role in dehumidification. As warm air goes over the evaporator coils in an AC system, moisture condenses into small water droplets. These droplets then move through the condensate drain line to prevent water buildup.
Humidity issues usually develop when a problem stops this process from happening normally. Short cycling, restricted airflow and clogs in the drainage system can all add up to rising humidity levels. Florida’s naturally high humidity can put additional strain on the AC systems we have in Niceville homes.
Watch Out for These Signs Your AC Is Not Removing Humidity Properly
Checking out these signs of high humidity can help confirm what you might already suspect from feeling sticky and clammy.
- Seeing condensation on the windows
- Smelling musty odors
- Finding mold and mildew growth
- Noticing rooms feel warmer than the thermostat indicates
- Discovering the AC running constantly
- Receiving higher-than-normal cooling bills
Understand Why an Oversized AC System Leaves Humidity Behind
Bigger is not always better in the HVAC industry. Oversized systems are common in Florida homes, which can lead to short cycling issues.
When AC systems operate in short cycles, they cool too quickly and shut off before they remove enough moisture from the air. This is why you might feel sweaty, even in cold air.
Consider How Dirty Evaporator Coils Can Reduce How Much Moisture is Removed
Evaporator coils remove moisture from the air, but this process can get disrupted by buildup from dirt, dust and pet hair. Cleaning the coils is an important part of HVAC maintenance services that helps promote proper heat transfer and dehumidification.
Find Out How Low Refrigerant Levels Can Make Homes Feel More Humid
The refrigerant in an HVAC system is necessary for cooling the air and maintaining proper efficiency. The signs of low refrigerant include weak cooling, longer run times and frozen coils that can all lead to more humid indoor air. Refrigerant leaks require professional repair to comply with safety regulations and ensure that the right type and amount are used.
Note How Leaky Ductwork Can Pull Humid Air Into Your Home
Duct leaks make it possible for hot attic air and moisture to get into the air system. With leaky ductwork, you might notice uneven cooling throughout your home, on top of the humidity issues disrupting your comfort.
Explore How Incorrect Thermostat Settings Can Increase Indoor Humidity
HVAC systems have ON and AUTO settings that impact how they operate. The ON setting can recirculate moisture even after the cooling cycle ends.
Turning the system off while you are at work or on vacation can also allow moisture to build up inside. Our technicians can help you install smart thermostats that eliminate the need to manually adjust the settings.
Begin Reducing Humidity In Your House
Using these strategies helps you lower the humidity in your home:
Replace dirty air filters every one to three months- Set the thermostat fan to AUTO and leave it alone
- Seal duct leaks
- Schedule routine professional AC maintenance
- Fix refrigerant leaks fast
- Turn on bathroom and kitchen exhaust fans as needed
- Consider whether you could benefit from a whole-home dehumidifier
Know When Humidity Problems Indicate a Need for AC Repairs
These signs let you know when to call a professional instead of focusing on DIY strategies:
- AC running nonstop
- Humidity levels are staying high despite your efforts
- Frozen evaporator coils occur
- Strange noises coming from your AC system
- Water leaks begin to form around the system
- Musty odors intensify
- You feel uncomfortably sweaty or clammy in cool air
Why Is High Humidity Indoors a Problem You Shouldn’t Ignore?
High humidity levels are more than just annoying. Your home can also develop these issues from allowing this problem to continue:
- Mold and mildew growth
- Damage to drywall and wood
- Poor indoor air quality
- Increased allergy symptoms
- Higher cooling bills
- Reduced AC lifespan
- Problems with sleeping
FAQs
Why does my house feel sticky even with the AC on?
The AC may be cooling the air, but it isn’t removing enough moisture to lower the humidity in your home.
Can an oversized AC unit cause humidity problems?
Oversized AC units lead to short cycling that doesn’t provide enough operation time for the system to remove moisture from the air.
Should my thermostat fan be set to AUTO or ON?
When the system is set to ON, it isn’t always actively cooling while it runs. The AUTO setting ensures that moisture buildup is removed from the air.
Does low refrigerant make a house feel humid?
Low refrigerant can lead to frozen coils and short cycling that contribute to increased humidity.
What humidity level should my house be in Florida?
We recommend keeping your house within the 30% to 50% indoor humidity range.
Fix the Real Cause of Humidity Issues in Your Niceville Home
Are you dealing with sticky house syndrome? If so, then you don’t have to sit around feeling like you’re wrapped in a damp towel all day. Our team at One Hour Air Conditioning & Heating diagnoses HVAC issues such as low refrigerant, poor airflow, oversized systems and frozen coils that contribute to that cold air, swampy feeling you notice.
We provide professional AC repair services in Niceville and throughout the Florida panhandle to help our neighbors improve comfort, indoor air quality and HVAC system efficiency. Even when it’s hot, we’re on time or you don’t pay a dime. Reach out to our team today!