Is it better to leave the AC on auto or turn it off? Homeowners who want to run their system most effectively are smart to ask this question.

At Apollo Air Heating & Cooling, our AC services in New Braunfels, TX, prioritize your satisfaction, comfort, and safety. From Jentsch Acres to Lifehaus Park, we treat every customer like the most important one and tailor our advice and services to their unique situation.

Why Do Thermostats Have Different Modes?

Thermostats have different modes to give you greater control over your indoor air quality. In addition to heating, cooling, and off, your thermostat controls include the fan settings “On” and “Auto.” Understanding the differences is essential for homeowners who want to obtain the desired HVAC system performance.

The Auto Setting Runs the Fan Only During Cooling

When you set the fan to auto, it only runs when your air conditioner is actively cooling the home. This allows the thermostat to control the indoor temperature without any effort on your part. It can increase system stress and lead to less consistent temperature distribution, especially in older air conditioners.

On Mode Blows the Fan Constantly

If you want a consistent flow of air coming from your vents, leave your fan in this mode. While it uses more energy, it can help the device distribute the air throughout the home. Remember that even though the fan runs constantly, it won’t control the humidity in the home unless it’s cooling.

The Benefits of Leaving Your Fan on Auto in New Braunfels

Is it better to leave the AC on auto or turn it off? Most homeowners in New Braunfels benefit most from leaving the fan on auto.

The primary consideration is the area’s climate. Because it’s consistently hot and humid, you need the humidity control from the auto setting to prevent mold growth.

You Allow the System To Run With Greater Energy Efficiency

Your AC fan settings play a major role in how much energy your device uses. When you allow your thermostat to control the operation, you eliminate human error. You may not notice you need it until your home has reached an excessive temperature, forcing the device to work harder and longer to reach your desired setting.

However, the sensor in your thermostat can tell the difference between 75 and 76 degrees. The moment the heat levels rise above your setting, it kicks in and efficiently restores comfort to your home before you’re aware of the problem. You may experience significant utility bill savings.

Instead of turning your air conditioner on and off, leave it on auto but set it at 78 degrees. The United States Department of Energy has identified this as the most efficient setting.

The Device Experiences Less Wear and Tear

Wear and tear is one of the most common air conditioner problems and can significantly reduce the device’s life expectancy. Is it better to leave the AC on auto or turn it off? Whenever you manually turn your air conditioner on, it requires a little extra exertion compared to auto mode.

When you mitigate the stress you put on your HVAC system, the air conditioner can last between 20 and 25 years. Running your system constantly also reduces life expectancy. Auto mode is a balanced approach between the two extremes.

You Can Mitigate the Disadvantages With Other Features

The biggest disadvantage of setting your fan to auto is the lack of consistent temperatures. However, you can eliminate this issue by running ceiling or portable fans. They use less energy and distribute the air throughout your rooms.

Lower Humidity Prevents Health Complications and Property Damage

By setting your fan to auto, you help avoid the detrimental effects of the humid subtropical climate in New Braunfels. Long-term exposure to high humidity can lead to sleep issues, respiratory problems, and skin irritation. It can also cause mold to form or your wood features to warp.