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Peaden Air Conditioning, Plumbing & Electrical Blog

Why Won’t My AC Evenly Cool My Home?


The wonders of the central air conditioning system: with just an adjustment to your thermostat, you get cool air sent to all the rooms. The conditioned air from the indoor evaporator moves through the ductwork, pushed by a blower fan, until it creates an even spread throughout the house that makes even the hottest day of summer easy to sail through.

However, you may run into a problem with your central AC and discover that it isn’t evenly cooling the house the way you expect. There are various reasons for this to happen: some you can correct on your own, while others will require contacting our expert technicians for AC repair in Baldwin County. Follow along with us as we go over the most common reasons for this cooling calamity.

Common Reasons for Even Cooling

Clogged Air Filter

One of the simplest causes of uneven cooling is a clogged air filter. When this filter becomes blocked with dust and debris, it restricts airflow. This can lead to certain rooms receiving less cool air than others. Check and replace this air filter regularly, typically every 1-3 months, to maintain proper airflow and efficiency.

Miscalibrated Thermostat

A thermostat that isn’t accurately reading the temperature can cause uneven cooling. If the thermostat is located in a particularly hot or cold spot in your home, it might not be able to regulate the temperature correctly for the entire house. Ensure your thermostat is correctly calibrated and consider relocating it if necessary.

Incorrectly Sized Air Conditioner

If your air conditioner is too large or too small for your home, it won’t cool efficiently. An oversized AC unit will cool the house too quickly without properly dehumidifying, leading to hot and cold spots. Conversely, an undersized unit will struggle to cool your home evenly. Professional HVAC contractors can perform a load calculation to ensure you have the correct size unit for your home.

Loss of Refrigerant

Low refrigerant levels can significantly affect your AC’s performance. When there’s a refrigerant leak, the system can’t effectively cool your home, resulting in uneven cooling. Refrigerant issues require professional attention, so if you suspect a leak, contact our technicians for repair.

Leaky Air Ducts

Leaky ducts can cause conditioned air to escape into unconditioned spaces like the attic or crawl space, leading to reduced airflow in certain rooms. Sealing and insulating your ductwork can help ensure that the cool air reaches all areas of your home.

Aging Air Conditioner

As air conditioners age, they can become less efficient and more prone to problems. If your AC unit is over 10–15 years old and you’re experiencing uneven cooling, it may be time to consider a replacement. Newer models are more efficient and can provide more consistent cooling throughout your home.

Call Us Today!

Don’t let uneven cooling disrupt your comfort this summer. At Peaden, we specialize in diagnosing and resolving all types of AC issues. We’ve been family-owned and locally operated since 1969, and we know how to serve local homeowners with the best in comfort.

Call today to discover The Peaden Way: Service Is Our Passion, Safety Is Our Priority, Satisfaction Is Our Promise. 

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