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

When it’s scorching outside, you trust your cooling to keep things cool inside. But is your AC taking a long time to cool down the house? This is common on sweltering days, which squeeze your cooling harder than average. However, if it’s not especially hot outside and your air conditioning is still struggling, your HVAC system could have a problem. Try these tips to help you resolve the matter. 

Dirty Air Filter 

A clogged filter is the most frequent reason an air conditioning system needs more time to cool the house. The job of a filter is to capture airborne contaminants that can damage your HVAC equipment. More efficient filters even catch tiny airborne contaminants to improve indoor air quality

Over time, the filter becomes blocked up with dust, pet hair, and textile fibers, restricting the flow of air. Besides making your AC unit take a long time to cool down the house, this problem can also lead to more expensive energy bills, higher wear and tear, and overheating. 

Solution: Check your air filter each month and replace it if it looks dirty. Try not to wait past three months to change the filter or follow the manufacturer’s recommendations. If you’re uncertain where the air filter is located, talk to a local HVAC technician at your next service appointment. 

Improper Thermostat Settings 

Your thermostat needs to be compatible with your air conditioner to work correctly. Then, you need to set it correctly to maintain a comfortable temperature. Using a programmable or Wi-Fi thermostat provides the best results. 

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

Dirty Evaporator Coil 

Split-system air conditioners come with an indoor unit and an outdoor unit. The indoor unit features the evaporator coil, which absorbs heat from the air with the refrigerant. It’s hard for the refrigerant to soak up heat efficiently if the evaporator coil is grimy, making it take longer to cool your house. 

Solution: Contact our HVAC experts to clean and tune up your air conditioner. An element of this visit involves cleaning out dust and grime from the evaporator coil to improve cooling performance. 

Dirty or Obstructed Outdoor Unit 

Your AC system’s cooling cycle involves transporting heated refrigerant to the outdoor unit, where it expels heat away from your home. However, if the outdoor unit is dirty or covered with encroaching plants, the cooling cycle may be less effective. 

Solution: Gently hose off the outdoor unit to get rid of dust, cobwebs, pine needles and grass clippings. Then, trim back bushes to at least 12 inches from the unit to boost airflow. 

Refrigerant Leak 

Refrigerant is the secret to a cool home. Normally, this substance flows in a closed loop back and forth between the indoor and outdoor units. If a leak occurs and your air conditioner loses refrigerant, it becomes more difficult to handle the cycle of absorbing and expelling heat from your home. 

Solution: Only a licensed technician can mend refrigerant leaks and recharge the system. If you suspect this problem, get in touch with our HVAC pros for help straight away. 

Leaky Ductwork 

Air ducts are vital to your HVAC system. A leak from either the return or supply side might make your air conditioner work harder and longer to cool your home. 

Solution: If you experience uneven temperatures and high amounts of dust throughout the house, get in touch with Service Experts Heating, Air Conditioning & Plumbing to inspect your ventilation. Duct sealing or replacement can fix the problem. 

Dirty or Blocked Air Vents 

Conditioned air can only flow through your home if the vents are open and unobstructed. Shutting too many vents can even throw off the system’s balance, contributing to additional breakdowns and repair costs. 

Solution: Inspect the vents in each room, making sure they’re open and not blocked by furniture, carpeting or window treatments. 

Old or Undersized Air Conditioning System 

Did you put in your air conditioning more than 10 to 15 years ago? As it ages, the unit becomes less effective and might struggle to maintain steady cooling. Furthermore, have you recently built a home addition or made other changes? This might result in an undersized air conditioner that may be unable to keep up with demand. 

Solution: The only solution for an aging or undersized air conditioner is to swap it out. Depend on our licensed 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 attempts prove ineffective, feel free to call in the HVAC experts at Service Experts Heating, Air Conditioning & Plumbing. We provide fast, effective support to get your HVAC system back up and running as soon as possible. You can rest easy knowing our technicians follow the highest standards of customer service to ensure your long-term peace of mind. Contact us to request air conditioning repair or other HVAC services today. 

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