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

When it’s scorching outside, you rely on your air conditioner to keep things cool inside. But is your air conditioner taking a long time to cool down the house? This is familiar on sweltering days, which strain your cooling harder than average. However, if it’s not especially hot outside and your AC is still having a hard time, your air conditioning could have a problem. Use these tips to help you troubleshoot the issue.

Dirty Air Filter

A clogged filter is the most common reason an air conditioner needs too much time to lower the temperature of the house. The job of a filter is to capture airborne contaminants that may damage delicate HVAC equipment. More efficient filters even capture microscopic airborne contaminants to increase indoor air quality.

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

Solution: Check your air filter each month and exchange it if it looks dirty. Try not to wait over three months to change the filter or follow the manufacturer’s recommendations. If you’re unsure where your air filter is located, check with your HVAC technician at your next service appointment.

Improper Thermostat Settings

Your thermostat must be compatible with your air conditioner to function properly. Then, you have to set it correctly to maintain a comfortable temperature. Employing a programmable or Wi-Fi thermostat offers the best results.

Solution: If you want to update your thermostat, require help learning about programmable features, or aren't comfortable programming a thermostat yourself, call an HVAC technician at Rob's Albertan Service Experts for assistance.

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 using refrigerant. It’s more difficult for the refrigerant to hold onto heat properly if the evaporator coil is grimy, making it take more time to lower the temperature of your house.

Solution: Call our HVAC professionals to clean and tune up your air conditioner. An important part of this maintenance consists of cleaning out debris and grime from the evaporator coil to improve cooling efficiency.

Dirty or Obstructed Outdoor Unit

A cooling cycle involves transporting warm refrigerant to the outdoor unit, where it expels heat to the exterior. However, if the outdoor unit is dirty or overgrown with encroaching yard waste, the cooling process can 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 ventilation.

Refrigerant Leak

Refrigerant is the secret to a cool home. Usually, this substance moves in a closed loop back and forth between the indoor and outdoor units. If a leak forms and your cooling loses refrigerant, it becomes more difficult to handle the cycle of absorbing and releasing heat from your home.

Solution: Only a qualified technician can fix refrigerant leaks and replenish the system. If you think you're dealing with this problem, call up our HVAC specialists 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 can make your air conditioner perform harder and longer to cool your home.

Solution: If you notice irregular temperatures and an excessive amount of dust inside the house, call Rob's Albertan Service Experts to examine your ductwork. Duct sealing or replacement can take care of the problem.

Dirty or Blocked Air Vents

Cooled air can only move around your home when the air vents are open and clear. Closing too many vents can even mess with the system’s balance, resulting in additional breakdowns and repair costs.

Solution: Check the vents all through the house, making sure they’re open and not blocked by furniture, carpeting or curtains.

Old or Undersized Air Conditioner

Did you set up your air conditioner more than 10 to 15 years ago? As time passes, the system becomes less effective and may be unable to maintain comfortable temperatures. Additionally, have you recently completed a home extension or made other modifications? This could leave you with an undersized air conditioner that may be unable to keep up with demand.

Solution: The only solution for an old or undersized air conditioner is to exchange it. Depend on our qualified HVAC technicians to size and install your new unit for comfort and efficiency.

Schedule AC Repair with Rob's Albertan Service Experts

If your troubleshooting efforts prove ineffective, it’s time to contact the HVAC experts at Rob's Albertan Service Experts. We provide fast, reliable support to get your HVAC system back up and running right away. You can rest easy knowing our technicians stick to the highest standards of customer service to ensure your long-term satisfaction. Contact us to schedule air conditioning repair or any other HVAC services today.

chat now widget box