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There are many factors that can cause uneven cooling,  It’s important to identify the root cause of the problem to find the most effective solution. Here are some of the most common causes of uneven cooling:

Leaky Air Ducts

When your home has leaky air ducts, it can cause uneven cooling. Your home will feel stuffy and humid in some rooms while feeling freezing in others. The reason for this is because the conditioned air that should be flowing through your vents is actually escaping through the leaks in your ductwork.

Clogged Air Filter

A clogged air filter will cause uneven cooling issues because it restricts airflow to the evaporator coils. This, in turn, makes it harder for your AC system to cool your home evenly. Ideally, you should change your air conditioner’s filter every 30-90 days to prevent this problem.

Short-Cycling Air Conditioner

When an air conditioner turns on and off frequently, it doesn’t have a chance to run through a full cooling cycle. As a result, the unit doesn’t have time to evenly cool the entire space.

This can lead to hot and cold spots throughout your home. It is important to have your thermostat professionally calibrated and to make sure that it is set correctly for both heating and cooling modes.

Old AC System

The main reason that an old AC system would cause uneven cooling issues is because the system itself isn’t operating at peak efficiency. Over time, components within the AC system can become worn or dirty, resulting in reduced performance. Additionally, the refrigerant charge in the AC system can diminish, leading to reduced cooling capacity.