Skip navigation

Proudly Serving the Conway Area

Proudly Serving the Conway Area


Dewees HVAC Blog

Can Your AC Be Too Big? Signs of a Botched Installation

As spring comes to a close, a reliable air conditioner (AC) becomes a necessity. But what if your cool sanctuary feels more like a constant battle with humidity and fluctuating temperatures? Believe it or not, the culprit might be an AC unit that’s actually too big for your home.

An oversized AC might seem counterintuitive. After all, shouldn’t a bigger unit cool your space faster? While it sounds logical, an AC that’s too powerful can lead to a surprising number of problems. Let’s explore the telltale signs of an oversized AC and why it’s crucial to address the issue with a professional AC replacement in Conway, AR.

Signs Your AC Unit is Too Big

  1. Short Cycling: An AC cools by running cycles. It turns on, reaches the desired temperature, and shuts off. Ideally, these cycles should last around 20-30 minutes. However, an oversized unit cools a space too quickly, leading to short cycles (less than 10 minutes). This constant on-and-off puts unnecessary strain on the system and reduces its lifespan.
  2. Humidity Issues: ACs don’t just cool; they also remove moisture from the air. An undersized unit might struggle to keep up, but an oversized unit cools so quickly that it doesn’t have enough time for dehumidification. This results in a cold, clammy space which is far from ideal comfort.
  3. Uneven Cooling: Imagine setting your thermostat to 72°F, but some rooms feel like iceboxes while others remain uncomfortably warm. This inconsistency is a classic sign of an oversized AC. The unit cools the areas closest to it rapidly, shutting off before reaching distant rooms.
  4. High Energy Bills: Despite feeling constantly cool or even chilled, your energy bills might be surprisingly high. This is because the AC is constantly cycling on and off, using more energy than necessary to maintain a consistent temperature.
  5. Reduced Comfort: While a constantly cold space might seem ideal initially, it can be uncomfortable and unhealthy. Additionally, improper dehumidification can exacerbate allergies and asthma.

Why Professional Replacement Matters

While a DIY approach might seem tempting, replacing an AC unit is a complex task best left to a licensed HVAC professional. Here’s why:

  • Sizing Expertise: Selecting the right-sized AC unit is crucial. Professionals consider factors like square footage, insulation levels, and even sun exposure. They use manual J calculations to determine the precise cooling load your home requires.
  • Installation Nuances: Proper installation goes beyond simply connecting the unit. Technicians ensure proper ductwork sizing and airflow to achieve optimal performance. An improperly installed system, even a correctly sized unit, can lead to inefficiency.
  • System Warranties: Most AC manufacturers require professional installation to uphold their warranties. Ignoring this can leave you financially responsible for any future repairs.
  • Safety Concerns: AC units involve electrical wiring and refrigerant handling. Improper installation can pose safety hazards, including electrical fires and refrigerant leaks.

Investing in Comfort and Efficiency

A properly sized and professionally installed AC unit is an investment that pays off in multiple ways. You’ll enjoy consistent cooling, improved humidity control, and lower energy bills. Most importantly, you’ll have peace of mind knowing your system is operating safely and efficiently.

Schedule your next AC repair or replacement with Dewees HVAC!

Comments are closed.