Air Conditioner Not Removing Humidity: Find Out Why And What To Do Next

woman using hand fan due to indoor humidity

Air conditioning units are designed to improve indoor comfort by cooling the air and managing moisture levels. Cooling is universally acknowledged, yet regulating humidity is just as crucial because excessive moisture can lead to discomfort, even in chilled settings. These units are crafted to handle moisture control silently and proficiently. If your air conditioner not removing humidity, it could indicate an issue. A simple unit examination before contacting HVAC experts might reveal straightforward problems impacting its efficiency. In this article by Wilcox Energy, we dive into why an air conditioning system would stop removing humidity effectively.

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Optimizing Indoor Humidity with Air Conditioners

Keep reading to explore why air conditioners may not effectively eliminate humidity from your home.

Understanding Humidity Management in Air Conditioning

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Air conditioners are engineered to take in warm, moist air, cool it by passing it over chilled evaporator coils, and reintroduce it to the environment with reduced temperature and moisture levels. As the air cools, moisture condenses on the coils, forming water droplets expelled outside. This function is vital for lowering indoor humidity and improving comfort. 

However, if any component of this system becomes obstructed or malfunctions, the air conditioner’s ability to control humidity is compromised. Even if the air is cooler, excessive moisture can still make the atmosphere feel sticky and uncomfortable.

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Advantages of Effective Humidity Control by Air Conditioners

man and woman with light bulb doodle on top of their head depicting understanding humidity management

Successfully managing indoor humidity with your air conditioner brings several advantages:

  • Increased Comfort: Reduces moisture in the air, enhancing your living space’s overall coolness and comfort.
  • Health Benefits: Lowers the risk of mold, mildew, and dust mites, which helps reduce triggers for allergies and asthma.
  • Energy Savings: By maintaining lower humidity, your air conditioner can operate more efficiently, which may lead to lower energy costs.
  • Protection of Property: Helps safeguard your furniture, electronics, and structural elements from moisture-induced damage.
  • Improved Sleep Quality: A less humid environment promotes more comfortable and restful sleep.
  • Less Odor: Helps diminish the musty smells often associated with high humidity in homes.

Are you experiencing AC issues? Contact Wilcox Energy for prompt and efficient service to restore your comfort.

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Reasons Behind Ineffective Humidity Control by Your Air Conditioner

image of the word why depicting reasons for AC not removing humidity

Excessive humidity inside your home isn’t just a minor annoyance; it carries significant long-term risks. It can damage furniture, wood floors, ceilings, and walls and even ruin books and artwork. 

High moisture levels also create a perfect breeding ground for mold and mildew, which can cause unsightly stains and release harmful spores into the air. This diminishes the visual appeal of your living spaces and degrades indoor air quality, making your environment unhealthy and uncomfortable. Take swift action to mitigate these issues.

Below are several possible causes your air conditioning system may fail to remove humidity properly:

1. Thermostat Fan Setting

homeowner addressing thermostat fan setting

One straightforward tweak that can significantly enhance your air conditioner’s ability to manage humidity is the thermostat fan setting. Setting the fan to ON means it runs non-stop, which can hinder the system’s capacity to reduce humidity effectively. This continual operation prevents moisture from properly condensing on the evaporator coils, causing it to re-evaporate into the air. 

Consequently, the desired reduction in humidity levels is not achieved, and moisture continues circulating back into your space. To address this, set the fan to AUTO. This adjustment ensures that the fan operates only during the cooling cycles, allowing enough time for moisture to be adequately expelled, thus improving the system’s humidity control.

2. Dirty AC Evaporator Coils 

Evaporator coils are pivotal in dehumidification by allowing air moisture to condense into water when it contacts these cold surfaces. Yet, when these coils become coated with dirt, their efficiency in moisture condensation is significantly reduced. A dense layer of grime effectively insulates the coils, lessening their cooling capabilities and, subsequently, the air conditioner’s ability to lower humidity and temperature. 

This problem highlights the critical need for regular system maintenance. Arranging for HVAC technicians to professionally clean the evaporator coils and the entire cooling system once or twice a year is essential to maintaining your air conditioner’s optimal performance.

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3. Air Conditioner Refrigerant Leaks

HVAC technician addressing refrigerant leak causing humidity issues

Refrigerant is the critical component of an air conditioning system, flowing through the coils to absorb indoor heat and dispel it outdoors. For optimal functionality, maintaining the correct level of refrigerant is crucial. Unfortunately, leaks in the refrigerant circuit can decrease levels, compromising the air conditioner’s ability to cool and dehumidify your home effectively. Signs that you might be experiencing a refrigerant leak include:

  • The air conditioner emits warm air.
  • A hissing noise is coming from the unit.
  • Ice buildup on the air conditioner lines or evaporator coil.

Keep your home cool and humidity-free. Schedule an air conditioner check-up with Wilcox Energy now.

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4. Faulty HVAC Ductwork

Ductwork is crucial in distributing air throughout your home. Although often out of sight, ensuring the ductwork remains in good condition is vital. Leaks in the ducts can be quite common, possibly leading to the loss of more than 30% of the conditioned air, dramatically decreasing system efficiency. This causes higher energy costs and affects the uniformity of cooling throughout different areas of your home. Some rooms stay warm while others cool down adequately, indicating where leaks may occur. 

Additionally, ductwork leaks can elevate indoor humidity levels and compromise air quality. Given the complex nature of accessing certain ductwork areas, professional assistance is recommended for thorough inspection and repair.

5. Oversized Air Conditioning System

kid wearing oversized adult shoes depicting oversized air conditioner

An oversized air conditioning unit can cause inefficiencies and discomfort within your home. Although it may cool your space rapidly to the desired temperature, its short operation cycles do not allow enough time to remove humidity, resulting in a damp indoor atmosphere. 

Moreover, frequent short cycling can place undue stress on the system’s components, potentially causing premature wear and damage. Choose an air conditioning unit the right size for your home to achieve efficient cooling and effective humidity control. Consulting a professional HVAC contractor is advisable to determine the best-sized system, ensuring it performs optimally and lasts longer.

FAQ: Mastering Humidity Control with Your Air Conditioner

Here are some common questions about the humidity control features of your air conditioner:

  1. Is it possible for air conditioners to dehumidify a space without cooling it? Absolutely. Many contemporary air conditioners come with a “dry” mode, specifically engineered to extract moisture from the air while maintaining a relatively stable room temperature. This function is especially beneficial in humid environments where moisture reduction is more crucial than temperature decrease.
  1. How does high outdoor humidity impact the performance of my air conditioner? When outdoor humidity levels are elevated, your air conditioner must exert more effort to extract moisture from the indoor air, which can decrease its efficiency and shorten its lifespan. This additional strain can hinder the system from achieving the desired comfort levels, often resulting in higher energy usage.
  1. What other methods can enhance indoor humidity levels aside from air conditioning? Incorporating dehumidifiers, maintaining adequate ventilation, repairing leaks, and utilizing exhaust fans in areas prone to high moisture, such as kitchens and bathrooms, can significantly aid in managing indoor humidity. These strategies support your air conditioner’s efforts to maintain a comfortable indoor climate.
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Maintaining optimal levels of humidity and temperature is essential for home comfort. Air conditioners, specifically engineered to manage these factors, can encounter challenges that hinder their performance. Some reasons why an air conditioner not removing humidity include improper settings, accumulation of dirt, leaks, low refrigerant levels, and issues with sizing. Elevated humidity damages your home and impacts your health. 

Consulting with HVAC professionals is crucial to address these complications effectively. They have the expertise to identify and rectify any problems quickly, ensuring you and your family enjoy a healthier and more comfortable living space.

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Contact Wilcox Energy for Your HVAC Solutions

For expert HVAC services in the Southern Connecticut shoreline, call Wilcox Energy. Our highly skilled and trained technicians are professionally certified and possess deep expertise in providing exceptional HVAC maintenance, repairs, installations, and replacements. Wilcox Energy is committed to offering the most affordable prices for HVAC services in the area, ensuring excellent value for our customers.

Our maintenance services are tailored to improve your comfort and increase the energy efficiency of your system, which can help minimize your heating and cooling expenses. If you need an HVAC repair or are considering upgrading to a new system, our professionals are on hand to help you find the ideal solution that meets your needs and budget. All our services come with a comprehensive satisfaction guarantee.

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