“Auto” means that the fan automatically works ONLY when the air is being heated or cooled. So once your home reaches the temperature set on the thermostat, the fan stops. “On” means the fan is on 24/7, even when the air isn’t being heated or cooled.
What does auto thermostat fan setting mean?
What Does AUTO Thermostat Fan Setting Mean? When your thermostat fan is set to AUTO, the fan feature will engage automatically when your system is actively heating or cooling the air. As soon as the thermostat has detected that the air in your home has reached the designated temperature setting, the HVAC system will turn itself off.
What does the on setting on the fan mean?
The On position will turn the fan on to run continuously, regardless of whether the heating or cooling system is turned on by the thermostat or not. This is the setting used to move air in your application all the time instead of when the system is running.
What is the fan setting on my thermostat on my furnace?
The fan setting on your thermostat turn’s the blower in your HVAC system on and off. You can set a blower fan to AUTO so that the blower turns on when the AC or furnace is running.
How do I know if my air conditioner fan is running?
A glance at the fan setting on your thermostat can often explain away that you possibly ran your air conditioner fan too often. Modern thermostats generally let you switch between two fan settings: auto, and on. The AUTO setting on a thermostat is more energy-efficient than setting to ON all day.
What does running the fan on your thermostat do?
The fan setting on your thermostat controls your HVAC's system blower. The blower helps circulate hot or cold air throughout your home until the temperature on the thermostat is reached.
When should I use the fan on my thermostat?
The fan setting pulls air through the filter continuously, offering an effective way to clean the air if you're suffering from poor indoor air quality. If you're dusting, vacuuming, sweeping, or completing projects that release odors and particles into the air, consider turning on the fan setting while you work.
What happens if you leave the thermostat fan on?
Keeping the fan on also means heat and air in your home are better circulated—and that means more even temperature control. That said, leaving your fan in the ON position will likely drive higher utility bills. In addition, you'll have to change air filters more frequently because of the added use.
Can I run just the fan on my AC?
Running It Without the AC Isn't Always Efficient Professional air conditioning repair technicians actually advise against this, however; while it's true that the fan alone uses less energy than the AC, it will almost certainly result in higher utility bills.
Should I run my thermostat on AUTO or fan?
AUTO is short for automatic. The fan only turns on when cooling or heating is required. If you are generally as comfortable in one room of your home as the next, you'll want to use the AUTO setting. The AC fan kicks in when needed and stops running when the job is done.
Should fan be on AUTO or on in winter?
The furnace fan is a vital feature of your heating and cooling system, so it's essential to know how to set it. We've stated that it's best to position your fan to "auto" in winter and "on" in summer. This will help keep your home comfortable and your HVAC system working at top efficiency.
Should the fan on my furnace be running constantly?
Better Indoor Air Quality Whenever the fan is on, air is going through the furnace filter. Leave it on continuously and you're likely to see less dust around. It's also important to have a good filter. The many types of HVAC filters can help reduce allergies, VOCs, as well as bacteria and viruses.
Is it OK to leave AC fan on all the time?
Leaving the fan on eases the strain on the HVAC system. Constant motion means fewer stops and starts, which can extend the lifespan of your unit. Constant fan use keeps the air in your home circulating through your air filters and UV sterilizers if you have them.
Does fan on thermostat use electricity?
The fan itself runs about as much energy as a refrigerator would. This can still add up to $50 a month, or $600 a year. This cost can be even higher if you consider the AC unit working harder to counteract the effects the fan may have. There are times though that using the fan has benefits.
Is running a fan cheaper than AC?
Fans are cheaper to run than air conditioners, and can be used in place of air conditioners or along with them to save money. If you have a ceiling fan, run it at the same time as the AC. It pushes cooler air down and over the bodies of the people in the room.
Should I leave my HVAC fan on all the time?
Better Indoor Air Quality Whenever the fan is on, air is going through the furnace filter. Leave it on continuously and you're likely to see less dust around. It's also important to have a good filter. The many types of HVAC filters can help reduce allergies, VOCs, as well as bacteria and viruses.
Does running the fan save electricity?
Ceiling fans use electricity to generate air. While they don't cool the room by changing the temperature of the air, they promote circulation, cooling your skin through a wind-chill effect. Leaving a ceiling fan running while you're gone for an extended period of time will only waste electricity.
Should the furnace fan be on all the time?
Furnace fans are designed to run all the time, so there's no need to worry about it failing prematurely. Much of a furnace fan's wear and tear comes from the starts and stops of the motor; keeping it running can eliminate this type of stress.
What is a fan in a home?
The fan refers to your central air system’s blower – the component that helps circulate cool or warm air throughout your home. You can control how and when the fan runs by adjusting your thermostat. Doing so can help improve your comfort and indoor air quality.
When does the AC fan kick on?
Setting the fan to auto: The fan kicks on automatically when the AC begins a cooling cycle (or when the furnace begins a heating cycle.) Once the thermostat reaches your setpoint temperature, your central air system powers down and the fan shuts off with it.
