Essentially, your air conditioner unit’s fan mode controls the blower fan. You can choose to run the fan continuously or only when the AC is on. This setting helps circulate air in your home, but it won’t produce any new cold air.

What does the fan mode do on a window air conditioner?

Fan mode on an AC unit means that the fan will run without the compressor turning on. This can be a good option if you want to circulate the air in your home without cooling it. It can also be helpful if your AC unit is not blowing cold air but the fan is still working.

Does fan mode circulate air?

Air Conditioner Fan Mode Setting
The fan of an AC unit connects to your indoor air handler. The fan will return the warm air in your home to the condenser. The re-circulated air will come back to the air handler where it’s converted to cool air and dispersed throughout your system of ducts and vents into your home.

Does window AC fan mode pull air from outside?

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. This results in recycled air.

Where does AC fan pull air from?

In short, your air conditioner does not circulate fresh air from outside into your house. Instead, it uses the available indoor air. The outdoor part of your air conditioner is called the condenser.

Which fan mode is best for AC?

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.

What is the difference between circulate and fan on?

When the heat is on, the fan will only turn on as your home heats up. When cooling, the fan will only run while your air conditioner is running. Some thermostats now offer a “Circulate” setting that will turn your fan on for a set period of time to help in circulating the air.

Why is my air conditioner fan not spinning?

The air filter might be clogged, and you need to clean or change it. Another cause of an AC unit fan not spinning is a clogged air filter. If you can’t remember the last time you replaced the unit’s filter, it’s time for a replacement. This is an approachable solution for homeowners to tackle.

What do the different fan modes do?

If your fan is in Winter mode, it should be spinning clockwise. The air won’t be cooling as it is in Summer mode. So if you don’t feel a cool breeze coming off your fan, then you are in Winter mode. You don’t want to cool the air down in Winter, rather you want to draw the air up.

What is the best mode for AC in summer?

Ideal Room Set Point Temperature
In general, air conditioners work best in cooling mode when the temperature is set between 22°c to 24°c with a medium or high fan speed setting. You can change it according to your preferences at any given moment, but the efficiency may be impacted negatively.

Why does my AC blower continues to run?

AC Unit Is Too Small Or Unable To Match Settings
A too-small HVAC system will often run to keep up with the thermostat setting, leading the fan and blower to run consistently. Additionally, if your area is facing extreme temperatures, your HVAC unit may not reach the desired temperature.

Why does my blower motor stay on?

If your fan limit switch is set to AUTO but the fan continues to run without ever stopping, you’ll need to call a professional. Two problems that could cause your fan to run without stopping include: A bad fan limit switch that needs to be replaced. Bad thermostat wiring.

When should AC fan turn on?

Your HVAC fan should turn on and off with the rest of your heating and cooling system. It’s normal for the fan to kick on a couple of minutes before heating starts or to stay on for a couple of minutes after cooling stops, but your fan shouldn’t run for hours on its own.

Is it OK to run the air conditioner fan continuously?

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.