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

When it’s sizzling outside, you trust your air conditioner to keep things balmy inside. But is your air conditioner taking forever 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 AC is still having a tough time, your air conditioner may have a problem. Follow these tips to help you resolve the matter. 

Dirty Air Filter 

A clogged filter is the most common reason an AC system takes too long to cool the house. The job of a filter is to trap airborne particles that may damage delicate HVAC equipment. More effective filters even catch tiny airborne particles to increase indoor air quality

Over time, the filter becomes blocked up with dust, pet hair, and textile fibers, limiting the flow of air. Besides making an air conditioning system take a long time to cool down the house, this issue can also lead to larger energy bills, increased wear and tear, and overheating. 

Solution: Check your air filter once a month and exchange it if it looks dirty. Don’t wait longer than three months to change the filter or follow the manufacturer’s recommendations. If you’re uncertain where your air filter can be found, ask a local HVAC technician at your next service appointment. 

Improper Thermostat Settings 

Your thermostat must be compatible with your cooling to work properly. Then, you need to set it correctly to sustain a comfortable temperature. Employing a programmable or Wi-Fi thermostat provides the best results. 

Solution: If you want to replace your thermostat, want help learning about programmable options, or may not feel comfortable programming a thermostat on your own, contact an HVAC technician at Service Experts Heating, Air Conditioning & Plumbing for help. 

Dirty Evaporator Coil 

Split-system air conditioners have an indoor unit and an outdoor unit. The indoor unit features the evaporator coil, which soaks up heat from the air via the refrigerant. It’s challenging for the refrigerant to soak up heat properly if the evaporator coil is grimy, making it take longer to lower the temperature of your house. 

Solution: Get in touch with our HVAC experts to clean and tune up your air conditioner. An element of this visit involves clearing away debris and grime from the evaporator coil to boost cooling efficiency. 

Dirty or Obstructed Outdoor Unit 

The cooling cycle requires transporting warm refrigerant to the outdoor unit, where it exhausts heat to the exterior. However, if the outdoor unit is dirty or overgrown with encroaching vegetation, the cooling cycle can be less efficient. 

Solution: Carefully hose down the outdoor unit to eliminate dust, cobwebs, pine needles and grass clippings. Then, prune back bushes to a minimum of 12 inches from the unit to increase circulation. 

Refrigerant Leak 

Refrigerant is the key to effective cooling. Typically, this substance flows in a closed loop between the indoor and outdoor units. If a leak forms and your air conditioner loses refrigerant, it becomes less effective at absorbing and dissipating heat from your home. 

Solution: Only a licensed technician can fix refrigerant leaks and replenish the system. If you suspect this problem, call up our HVAC experts for help straight away. 

Leaky Ductwork 

Air ducts are the arteries and veins of your HVAC system. A leak in either the return or supply side might make your air conditioner perform harder and longer to cool your home. 

Solution: If you are dealing with irregular temperatures and an excessive amount of dust throughout the house, contact Service Experts Heating, Air Conditioning & Plumbing to take a look at your air ducts. Duct sealing or replacement can fix the problem. 

Dirty or Blocked Air Vents 

Conditioned air can only circulate around your home if the supply and return vents are open and unobstructed. Shutting too many vents can even mess with the system’s balance, leading to more breakdowns and repair costs. 

Solution: Take a look at the vents all through the house, seeing to it that they’re open and unobstructed by furniture, carpeting or window treatments. 

Old or Inadequately Sized Air Conditioner 

Did you put in your cooling more than 10 to 15 years ago? As it ages, the system becomes less effective and can fail to maintain comfortable temperatures. Additionally, have you recently built a home extension or made other changes? This might lead to an undersized air conditioner that won’t always keep up with demand. 

Solution: The only solution for an outdated or undersized air conditioner is to exchange it. 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 efforts prove ineffective, don’t hesitate to contact the HVAC professionals at Service Experts Heating, Air Conditioning & Plumbing. We supply fast, efficient services to get your cooling back up and running as quickly as possible. You can count on the fact that our technicians adhere to the highest standards of support to ensure your long-term comfort. Contact us to schedule air conditioning repair or other HVAC services today. 

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