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Is My AC Unit Undersized?

Proper sizing is key to the optimal function of an air conditioning system. Disregarding this important factor can lead to a variety of issues that can compromise not just indoor comfort but also the longevity and performance of the unit. As the leading provider of high quality heating and air conditioning services in the local area, we have diagnosed many different issues, some of which point to an undersized system. This blog post discusses a few of them.

Recognizing the Signs of an Undersized AC Unit

The following are just some of the signs that an AC unit is too small for your home:

  • Lack of Cooling. An AC is too small if it is continuously running without effectively cooling your home. This incessant operation points to the unit’s struggle to reach the desired thermostat settings due to its insufficient capacity.
  • Inconsistent Indoor Temperatures. As the undersized AC continues to operate, you might also notice that certain rooms or areas feel cooler, while the others aren’t. It only means the unit doesn’t have enough power to distribute cooled air evenly across your living spaces. 
  • Increase in Energy Bills. An undersized AC struggles to cool your home efficiently, which can reflect on your energy bills through significant spikes in energy consumption. The strain it undergoes can potentially shorten its lifespan.
  • High Humidity Levels. This is also an indication of an undersized AC unit. Air conditioners not only cool your home but also remove moisture from the air. If your unit can’t keep up with the humidity, it may be too small, leaving your indoor air feeling muggy and uncomfortable.
  • Low Airflow. This can be a symptom of an undersized unit. While this could also stem from other issues that require immediate air conditioning repair,  when combined with other signs, it strongly suggests that your AC might not be adequately sized for your house.

Making the Right Choice for Your Home

Choosing the correct size for your AC unit requires considering several factors, including the square footage of your home, the average number of occupants, the amount of sun exposure, and even the number of windows you have. Professional HVAC technicians can perform precise calculations to recommend the best unit size for your home, considering all these factors to ensure optimal comfort and efficiency.

Turn to Air Quality Heating & Air Conditioning for top-notch air conditioning installations! Let’s help you find the best AC system that’s properly sized for your home. To get started, call (408) 920-3910, or fill out our contact form to schedule an appointment. We serve residents of San Jose, CA, and the surrounding communities.

Categories: Air Conditioning
Matt Farber: