Auto will heat or cool the room. Cool will only cool.
AUTO is significantly more energy efficient between the two modes since the fan is only running when your AC is going through its cooling cycle. This takes less power, which is more budget-friendly, with some estimates showing you can save as much as $50 per month just by keeping your AC on AUTO.
The reason they suggest leaving it on auto is so the unit can run at peak efficiency. Allowing the unit to have control over the fan speed generally leads to more consistent temperatures, better dehumidification, and energy efficiency.
Use cool mode for hot temperatures, dry mode for humid environments, and eco mode to save energy while maintaining moderate cooling. For quick cooling, opt for turbo mode, and use sleep mode at night for comfort and efficiency.
You shouldn't be using the standard ``cool mode'' all the time, as this isn't energy efficient. ``Cool mode'' should be used during hot and dry seasons, while the aircon ``dry mode'' is more appropriate for humid seasons that aren't necessary hot and warm in temperature.
While the standard room temperature of 72 degrees Fahrenheit is commonly favored by many, others argue for higher settings, particularly when it's hotter outside.
In most situations, 78'F is the ideal AC temperature to save electricity. The U.S. Department of Energy advises keeping your home between 72° and 78° Fahrenheit to preserve comfort and a manageable electric expense.
WHAT IS THE BEST MODE FOR AC IN SUMMER? In summer, the best mode for your air conditioner is the "Cool" mode, set to a comfortable temperature around 78°F when you're home. This setting efficiently reduces indoor humidity and maintains a comfortable environment without overworking the AC system.
When your air conditioner is turned on, it is constantly running even if you are comfortable with the temperature it holds. When your unit is on auto the fan and air conditioning unit will run as seen fit. This means, that in turn, when your setting is turned on auto less electricity is used.
Keeping your fan on AUTO is the most energy-efficient option. The fan only runs when the system is on and not continuously. There is better dehumidification in your home during the summer months. When your fan is set to AUTO, moisture from cold cooling coils can drip and be drained outside.
When the air conditioner is in auto mode, it does not run constantly, but turns on and off automatically as needed to maintain the desired temperature. Improved comfort: The auto mode in the air conditioner can also help to improve the comfort of users.
You'll want to have your thermostat set to heat mode in the wintertime and air conditioner auto mode in the summertime. In order for your system to run on auto mode, you'll need to have either the heat mode or cool mode on. This way, your thermostat knows whether to turn on the furnace or the air conditioner modes.
First, check your filters and coils for dirt and debris that may be impeding airflow. Once you've cleaned the filters and coils, run the air conditioner with just the fan so that the ice accumulation can melt off. If the AC still doesn't blow cold air, it could be that refrigerant levels are too low.
But using the AUTO setting with a reasonable set temperature will keep your energy costs low, especially if you turn your unit off when you're away from home or asleep.
Set your air conditioning to the highest level that's comfortable. Turning our attention to the air conditioning unit itself, the most energy efficient action is to set the temperature to the highest value that's still comfortable (26°C during the day and 22°C when sleeping is often recommended).
Auto mode is similar to cool mode as the AC unit will work to cool the air down. However, unlike cool mode, once the room reaches the set temperature, both the compressor and fan switch off. This mode is another ideal mode for saving energy and money as once everything is switched off no electricity is used.
1. Cool mode. This is the most common and usually the default setting when you first turn on the AC. This mode sends cool air throughout your room and is great for cooling down an area after a long, hot day.
The recommended rule of thumb for summertime is to set the temperature to 78 degrees Fahrenheit when you're home and higher when you're away. In general, set it to 82 degrees Fahrenheit when you're asleep and 85 degrees Fahrenheit when you're away.
Cool mode: Ideal for hot days, this mode reduces the room temperature to your desired setting. Dry mode: Perfect for humid conditions, this mode removes excess moisture from the air without significantly reducing the temperature.
For many of us, 70 degrees is the ideal indoor temperature, but when it is close to 100 degrees outside, your AC unit will be working quite hard to meet these expectations. Consider setting your thermostat at 75 degrees to 80 degrees in your home if the outside temperature is approaching triple digits.
Best AC Temperature Settings While You Are Home
As you consider the most comfortable room temperature for your lifestyle and family, keep in mind that for each degree that you set your thermostat above 72 degrees, you can save up to 3% on your energy bill.
There are benefits to having your air conditioner set to “auto” and “on.” The benefits of the “auto” setting include higher efficiency, lower energy bills, better humidity control, less wear and tear on some components, and quieter running.
If the temperature is set to 74°F but the thermometer shows 78°F, you will have to recalibrate the thermostat to account for this 4-degree deviation. Even with older AC units or furnaces, you might have to recalibrate your thermostat from time to time.
Recommended AC Temperature for Sleeping
The Sleep Foundation says 65° is the best temperature for sleeping. However, if you prefer a slightly warmer or cooler room, that's okay, too. The recommended range is 60–68°, so there is some wiggle room.