High Humidity? Davis Is Here To Help!
You lower the thermostat.
The air conditioner runs.
The temperature on the thermostat says 72 degrees.
But somehow, your home still feels sticky, clammy, and uncomfortable.
If this sounds familiar, you’re not imagining things.
Many homeowners throughout Cherry Hill, NJ and the surrounding South Jersey communities experience excessive indoor humidity even while their air conditioner appears to be working normally. In fact, humidity problems are one of the most common comfort complaints we hear at Davis Heating & Air.
The truth is that comfort isn’t just about temperature.
Humidity plays a huge role in how your home feels. When humidity levels rise, even a cool house can feel warm and uncomfortable.
Let’s look at why your house feels humid even with the AC running and what can be done to solve the problem.
Your Air Conditioner Does More Than Cool
Most homeowners think their air conditioner simply lowers the temperature.
But cooling is only part of the job.
Your AC system also removes moisture from the air.
As warm air passes over the evaporator coil, water vapor condenses and drains away. This process helps maintain healthy indoor humidity levels while improving comfort.
When everything is working properly, your home should feel cool and dry.
If the air feels damp or sticky, something may be preventing your system from removing moisture effectively.
High Humidity Makes Your Home Feel Hotter
Humidity affects how your body cools itself.
When indoor humidity rises, sweat evaporates more slowly. As a result, your body struggles to release heat, making you feel warmer even though the actual temperature hasn’t changed.
That’s why:
- 72 degrees with low humidity feels comfortable.
- 72 degrees with high humidity feels sticky and unpleasant.
Many homeowners mistakenly lower the thermostat even further, causing the system to run longer while the underlying humidity problem remains.
South Jersey Summers Bring Heavy Humidity
Cherry Hill summers are known for heat, but they’re equally known for humidity.
Outdoor air often contains tremendous amounts of moisture. Every time:
- Doors open
- Windows open
- People come and go
- Bathroom fans are used improperly
… humidity enters the home.
Your air conditioner is constantly battling that moisture.
During extremely humid periods, even properly functioning systems may run longer than usual.
However, if your house constantly feels damp, there may be another issue involved.
Your HVAC System May Be Oversized
Surprisingly, bigger isn’t always better.
Many homeowners assume larger air conditioners cool better.
In reality, oversized systems often create humidity problems.
Why Oversized Systems Struggle
An oversized system cools the house quickly.
But moisture removal takes time.
When the system reaches the desired temperature too fast, it shuts off before it has enough time to remove humidity effectively.
This short cycling leaves the air feeling cool but damp.
Signs of an oversized system include:
- Short cooling cycles
- Frequent starts and stops
- Uneven temperatures
- Sticky indoor air
Simply replacing the equipment with a larger unit isn’t always the answer.
Proper sizing matters.
Dirty Air Filters Restrict Airflow
One of the simplest causes of humidity problems is a dirty air filter.
Restricted airflow affects the evaporator coil’s ability to remove moisture.
A clogged filter can contribute to:
- Reduced cooling performance
- Longer run times
- Poor humidity control
- Frozen coils
- Higher energy bills
Fortunately, replacing the filter is inexpensive and easy.
Most homeowners should change filters every 1-3 months.
Your Evaporator Coil May Be Dirty
The evaporator coil is where moisture removal takes place.
Over time, dirt and debris can coat the coil and reduce its ability to absorb heat and humidity.
Dirty coils can cause:
- Sticky indoor air
- Reduced cooling capacity
- Longer run times
- Higher utility bills
Professional maintenance includes coil cleaning, which helps restore system performance.
Your Condensate Drain Line Could Be Clogged
As moisture is removed from the air, it drains away through the condensate line.
When that line becomes blocked, water cannot leave the system properly.
Clogged drain lines may cause:
- Excess moisture
- Musty smells
- Water leaks
- System shutdowns
South Jersey’s humid summers create ideal conditions for algae and sludge buildup inside drain lines.
Regular maintenance helps prevent these issues.
Your Thermostat Could Be Causing The Problem
Believe it or not, your thermostat can affect humidity levels.
Constant Temperature Adjustments
Many homeowners constantly adjust the thermostat throughout the day.
Frequent changes may prevent the system from completing proper cooling cycles, reducing moisture removal.
Thermostat Location Matters
A thermostat located near:
- Windows
- Kitchens
- Lamps
- Sunlight
… may receive inaccurate temperature readings.
This can cause the system to cycle improperly and affect humidity control.
Leaky Ductwork May Be Pulling In Moist Air
Your duct system isn’t just responsible for moving conditioned air.
Leaks can actually pull warm, humid air into the system.
This introduces additional moisture and makes humidity control much more difficult.
Common problem areas include:
- Attics
- Crawl spaces
- Wall cavities
Leaky ducts often contribute to:
- Uneven temperatures
- Higher energy bills
- Reduced comfort
- Excess humidity
Your Home Itself May Be Contributing
Not every humidity problem originates with the HVAC system.
Everyday activities add moisture to indoor air.
These include:
- Cooking
- Showering
- Laundry
- Dishwashers
- Large families
- Indoor plants
Without proper ventilation, moisture accumulates quickly.
Older homes may also allow humid outdoor air to infiltrate through gaps and cracks.
Your AC May Be Low On Refrigerant
Low refrigerant affects more than temperature.
It can also reduce the system’s ability to remove moisture effectively.
Additional signs of low refrigerant include:
- Weak airflow
- Longer run times
- Warm air
- Ice buildup
- Higher energy bills
Unlike filters and thermostat settings, refrigerant problems require professional service.
Sometimes You Need More Than Air Conditioning
Certain homes naturally struggle with humidity.
In these cases, a whole-house dehumidifier may provide the best solution.
- Remove excess moisture
- Improve comfort
- Reduce musty odors
- Help prevent mold growth
- Lower the workload on your HVAC system
Many homeowners are surprised by how much more comfortable their home feels after controlling humidity properly.
Warning Signs You Shouldn’t Ignore
High humidity can create more than discomfort.
Watch for:
- Condensation on windows
- Musty odors
- Sticky air
- Mold growth
- Warped wood floors
- Increased allergy symptoms
- Damp feeling rooms
These signs may indicate a problem that deserves professional attention.
Routine Maintenance Helps Control Humidity
Many humidity issues can be prevented through regular HVAC maintenance.
Professional tune-ups help identify:
- Dirty coils
- Refrigerant issues
- Airflow restrictions
- Drain line clogs
- Thermostat problems
… before they lead to larger comfort issues.
Comfort Is About More Than Temperature
Many homeowners focus entirely on the number displayed on the thermostat.
But temperature is only part of the comfort equation.
Humidity, airflow, insulation, and system performance all work together to create a comfortable indoor environment.
A house that is cool but humid will never truly feel comfortable.
Cherry Hill HVAC Service From Davis Heating & Air
If your home feels sticky even though the air conditioner is running, Davis Heating & Air can help identify the cause.
We proudly provide HVAC repairs, maintenance, diagnostics, and comfort solutions throughout Cherry Hill, NJ and the surrounding South Jersey communities.
Our team believes in solving problems the right way. We Fix It First, which means we always look for practical repair solutions before recommending expensive replacements whenever possible.
If your house feels humid and uncomfortable, contact Davis Heating & Air today and let us help restore the comfort your home deserves.
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