Chances are, your units have more than just an on-off switch.

Take a moment to familiarize yourself with the tweaks on your air-conditioning units.

Even if you’re missing the instruction manual for a unit, its controls should be self-explanatory.

Efficiency Tips for Air Conditioners

The Spruce / Ashley Nicole DeLeon

Check the Fan Options

Many units offer three fan parameters: high, medium, and low.

High is usually most effective for cooling during normal warm weather.

However, when it’s very humid, it’s better to keep the fan on low.

person changing fan options

The Spruce / Candace Madonna

This helps direct the cool air outward into the room.

But modern units offer ways to cool your home effectively while using less energy.

If so, you’ll probably save energy using these functions.

redirecting air conditioner vents

The Spruce / Candace Madonna

Many modern units have an indicator light that goes on when it’s time tocleanthe filter.

Don’t have a timer?

Don’t sweat it.

Energy saver function

The Spruce / Candace Madonna

How Low Should You Go?

Fans can make your body feel 4 degrees F cooler and use relatively little electricity.

setting the timer

The Spruce / Candace Madonna

Air conditioner set to 78 degrees

The Spruce / Candace Madonna