Why Does the AC Take So Long to Cool Down the House?

When it’s scorching outside, you depend on your air conditioner to keep things balmy inside. But is your air conditioner taking a long time to cool down the house? This is typical on sweltering days, which strain your AC system harder than average. However, if it’s not very hot outside and your air conditioning is still having a hard time, your air conditioner may have a problem. Follow these tips to help you troubleshoot the problem. 

Dirty Air Filter 

A clogged filter is the most frequent reason an air conditioner takes too long to cool down the house. The purpose of a filter is to snare airborne debris that can cause problems for your HVAC equipment. More efficient filters even trap tiny airborne contaminants to enhance indoor air quality

Over time, the filter becomes clogged with dust, pet hair, and textile fibers, restricting airflow. Besides making an air conditioning system take a long time to cool down the house, this problem can also result in more expensive energy bills, higher wear and tear, and overheating. 

Solution: Check your air filter once a month and change it if it looks dirty. Don’t wait more than three months to exchange the filter or follow the manufacturer’s recommendations. If you’re not sure where your air filter is located, ask your HVAC technician at your next service appointment. 

Improper Thermostat Settings 

Your thermostat must be compatible with your cooling to run properly. Then, you need to set it correctly to maintain a nice temperature. Employing a programmable or Wi-Fi thermostat offers the best results. 

Solution: If you want to upgrade your thermostat, require help learning about programmable settings, or aren’t comfortable programming a thermostat yourself, call an HVAC technician at Service Experts Heating, Air Conditioning & Plumbing for support. 

Dirty Evaporator Coil 

Split-system air conditioners possess an indoor unit and an outdoor unit. The indoor unit houses the evaporator coil, which takes in heat from the air with the refrigerant. It’s more difficult for the refrigerant to absorb heat properly if the evaporator coil is dirty, making it take longer to lower the temperature of your house. 

Solution: Get in touch with our HVAC professionals to clean and tune up your air conditioner. Part of this visit involves removing debris and grime from the evaporator coil to enhance cooling efficiency. 

Dirty or Obstructed Outdoor Unit 

The cooling cycle involves transporting heated refrigerant to the outdoor unit, where it expels heat into the outdoor air. However, if the outdoor unit is dirty or overgrown with encroaching vegetation, the cooling cycle may be less successful. 

Solution: Gently hose off the outdoor unit to eliminate dust, cobwebs, pine needles and grass clippings. Then, prune back bushes to around 12 inches from the unit to improve circulation. 

Refrigerant Leak 

Refrigerant is vital to air conditioning. Usually, this substance moves in a closed loop among the indoor and outdoor units. If a leak forms and your AC loses refrigerant, it becomes more difficult to handle the cycle of absorbing and expelling heat from your home. 

Solution: Only a trained technician can repair refrigerant leaks and replenish the system. If you think you’re dealing with this problem, call our HVAC experts for help at once. 

Leaky Ductwork 

Air ducts are vital to your HVAC system. A leak from either the return or supply side could make your air conditioner run harder and longer maintain comfortable temperatures. 

Solution: If you are dealing with irregular temperatures and high amounts of dust inside the house, get in touch with Service Experts Heating, Air Conditioning & Plumbing to inspect your ductwork. Duct sealing or replacement can take care of the problem. 

Dirty or Blocked Air Vents 

Cool air can only flow through your home if the vents are open and free from any obstructions. Closing too many vents can even mess with the system’s balance, contributing to increased breakdowns and repair costs. 

Solution: Check the vents all through the house, seeing to it that they’re open and unobstructed by furniture, carpeting or drapes. 

Aging or Undersized Air Conditioning System 

Did you install your cooling more than 10 to 15 years ago? As time passes, the unit becomes less effective and might be unable to maintain steady cooling. Additionally, have you recently built a home addition or made other improvements? This might lead to an undersized air conditioner that will struggle to keep up with demand. 

Solution: The only fix for an outdated or undersized air conditioner is to swap it out. Trust our certified HVAC technicians to size and install your new unit for comfort and efficiency. 

Schedule AC Repair with Service Experts Heating, Air Conditioning & Plumbing 

If your troubleshooting still proves ineffective, feel free to call in the HVAC professionals at Service Experts Heating, Air Conditioning & Plumbing. We provide fast, reliable services to get your cooling back up and running right away. You can rest easy knowing our technicians follow the highest standards of care to ensure your long-term peace of mind. Contact us to arrange air conditioning repair or additional HVAC services today. 

  • Zoning Systems: Control the Temperature in Every Room

    Central heating and air systems have radically changed home comfort and made it possible to stay completely cozy in any season or climate. But while centralized systems are a handy way to regulate the temperature, they at times fall short when it comes to evenly distributing heated or cooled air... Continue reading

  • Eight Upgrades to Boost Your Home HVAC System

    During the coldest time of the year in the U.S., there’s no better way to improve your home’s comfort than with some effective upgrades. It’s not just about keeping the house toasty warm as the snow begins to fall—it’s about boosting efficiency and improving the very air you breathe.... Continue reading

  • How to Find an Effective HVAC System

    In terms of keeping your home comfortable year-round, nothing is more critical than choosing the right heating, ventilation and air conditioning (HVAC) system. This determination impacts your daily comfort, monthly utility costs and all-around home efficiency. However, with so many system types,... Continue reading