The fan setting on your thermostat controls your HVAC system blower. The blower helps circulate hot or cold air throughout your home until the temperature on the thermostat is reached.
They should not be left on all the time. Some of the more advanced thermostats might use the fan to better circulate the air post-AC or heat running or pre-cool the home a little by running the fan. But in normal operation, it only runs with the furnace or AC does.
They should not be left on all the time. Some of the more advanced thermostats might use the fan to better circulate the air post-AC or heat running or pre-cool the home a little by running the fan. But in normal operation, it only runs with the furnace or AC does.
This means, that in turn, when your setting is turned on auto less electricity is used. When your fan and air conditioner are running all the time, more electricity is produced. All in all, it is better to leave your air conditioner's fan on auto, instead of “On” at all times.
Fans that are left on constantly can use more electricity than they should, and their blades will become dull quickly, even without being used. – Clean it regularly. The one major risk that you have when running an electric fan all day long is dust and debris building upon its surface.
The fan will constantly blow air into your room if you have the thermostat turned “ON.” If it is on “AUTO,” it will only turn the fan on when heated air needs distribution. So yes, running HVAC continuously throughout the day and night is perfectly safe!
Common causes for fans not turning off when they should include faulty thermostats, bad wiring, and stuck relays. These problems are not easy DIY repairs and should be left to an HVAC professional.
Running the fan more often means air in your home circulates faster, leading to everything from more even temperature distribution to faster heating or cooling. Those who use this format find fewer issues with temperature imbalances between floors, for instance.
Consequences of Running Your Air Conditioner 24 Hours a Day
Wasted energy: Running the AC to cool your home beyond your comfort level wastes energy and contributes to an increased carbon footprint. This is bad news for the environment and your energy bills.
Positioning your fan so that it is near the A/C vent helps distribute cold air faster and more efficiently than the A/C alone could. This helps circulating air for a larger area and cool the room quickly. By using the fan, the Ac need not be on a very cold setting which costs more money.
A typical AC fan motor uses about 500 watts when it's running. Therefore, if you run the fan continuously for a 30-day month (720 hours), you would use 360,000 watt hours (720 x 500) or 360 kilowatt hours (kWh). Therefore, the fan uses about 360 kWh per month in the ON mode.
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.
If your AC is running but not cooling, it could be due to a dirty air filter, incorrect thermostat settings, a malfunctioning thermostat, a refrigerant leak, dirty condenser coils, blocked vents or ducts, a faulty compressor, frozen evaporator coils, or electrical issues.
Yes, it is perfectly fine to keep your AC in fan mode. This setting allows the fan to run continuously, circulating air without using the compressor to cool it. This can be particularly useful during mild weather or when you want to save energy by not cooling the air but still need some air movement.
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.
Does it bring in fresh air? No, air conditioners do not bring in fresh air from the outside. That's not how they were designed. What actually happens is that your air conditioner uses a fan to draw air into the unit and disperse it through a structure.
Allowing your air conditioner to rest is an excellent way to extend its life and ensure it operates efficiently throughout the years. Air conditioners, like homeowners, require rest in order to recover and perform optimally.
You can expect a more considerable maintenance burden if you run the fan continuously, even if you're running the AC fan without cooling. The filter will clog sooner, and the mechanical parts need more frequent attention to avoid breakdowns.
You're likely wasting energy, putting stress on your system, and heading toward steep repair bills. Don't let cooling your home become unnecessarily expensive this summer. Use these six simple questions to find out if your AC is running too long (and what you can do about it).
It only makes you FEEL cooler because it's moving air over your skin, carrying the heat away from your body. This is the wind chill factor you hear on the Weather Channel so often. So it's doing nothing to lower the temperature in your home, meaning your A/C will run just as long whether the fan is on or not.
A ceiling fan is made up of different parts and pieces, and they will wear out over time. Sure, your ceiling fan can run throughout the day and night without issue, but running it for several days or months on end may not be the smartest choice and will reduce the overall lifetime of your fan.
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.
Unless you're running your AC fan when the system isn't cooling. That will probably make you less comfortable, not more. If you're running your AC fan 24/7, you should probably stop. You'll usually feel cooler if you let the fan turn off between cooling cycles.
If the fan is set to “on,” change the setting to “auto,” so it's only running when the air conditioner is running. Turn the fan switch to “off” and back to “auto.” If the fan doesn't turn off, even when you flip the switch to the “off” position, your system may require a thermostat replacement.
Pros of Keeping Your Fan On
First, running fans contribute to even temperature distribution. This reduces the hot spots in your house. Hot spots occur when an area doesn't receive the same temperature-controlled air as other rooms. You'll also enjoy improved air quality in your home.