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.
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.
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.
While the answer is that there are pros and cons to both, I personally recommend using the “auto” function over the “on” function for your furnace fan. The amount of money you save and the boost in energy efficiency is the reason why. I also suggest having a smart thermostat installed in your home.
AUTO is the best option to save on energy bills and maintain the health of your HVAC system.
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.
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.
Using the “Auto” Setting
This setting offers benefits including: Increased energy efficiency by running the fan only when needed. Extended filter life as the fan operates less frequently. Lower energy bills due to reduced electricity usage.
The primary function of a thermostat is to maintain a minimum operating temperature in the car's engine. When the engine is started, the antifreeze and coolant mixture is kept within the engine by the thermostat. It opens upon reaching a specified temperature.
When the system is in auto mode, it automatically adjusts the temperature and fan speed to maintain a constant, comfortable temperature. This means there is no need to adjust the temperature manually, which can result in lower energy consumption and greater energy efficiency.
Setting your thermostat to auto will allow your system to be more energy-efficient since the fan only runs when the system cycles on, not continuously.
Eco or energy-saving mode
This is the ideal mode for users looking to save up on energy bills by toning down the performance of the AC and its compressor. Eco-mode uses less electricity by automatically adjusting the fan speed and temperature, while still maintaining a comfortable level of cooling.
• AUTO (automatic) mode
Automatic mode sets the thermostat to follow the temperature program.
Energy.gov suggests that 68 degrees is a good room temperature while you're awake at home but recommends lowering it while you're asleep or away. Lowering your thermostat 7-10 degrees for eight hours a day can reduce your annual heating expenses by as much as 10 percent.
Check the Furnace's Power Switch
If the circuit breaker is functioning correctly, inspect the on/off switch for the furnace. This switch looks like a typical light switch and is usually located directly above the furnace or on a nearby wall.
Choose "AUTO" for energy savings and "ON" if you want constant air circulation or improved air filtration. Temperatures can soar or plummet depending on the time of year. Throughout the year, it is important to have reliable heating and cooling systems in order to keep your home supplied with cool or warm air.
The main benefit of setting the thermostat to 'Auto' is that it will result in more energy efficient usage. This is because the fan will run only when it's required. Also, the air filter will need to be changed or cleaned less frequently when the thermostat setting is set to 'Auto'.
Keeping your fan on AUTO is the most energy-efficient option. The fan only runs when the system is on and not continuously.
Leaving your AC fan set to ON allows the moisture in your home to accumulate and reach mold-growing levels of humidity. To ensure that you and your family stay cool and healthy this summer, keep your AC thermostat fan setting to AUTO.
If someone is at home in the daytime, 72° F (22° C) is a good start, but aim for 68° F (20° C). If everyone is away from home in the daytime or you're asleep at night, we feel 66° F (19° C) to 62° F (17° C) is best.
There are a number of reasons why your air conditioner might be running but not cooling. It could be an issue with the thermostat, the compressor, or the evaporator coils. Or, it could simply be clogged with dust and debris, which is preventing it from working properly.
Most modern thermostats will have a clearly marked reset button inside the panel. It's usually small and recessed, so you might need a pointed object like a paperclip to press it. For those wondering specifically how to reset air conditioner thermostat models, the process is generally the same.