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.
What happens when you turn the fan on your air conditioner?
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. ON means that the fan is constantly on and blowing air when your HVAC system is not heating or cooling air.
Should fan be switched on with AC?
Any type of fan, but especially ceiling fans, can help keep cool air circulating throughout your home. That removes some of the burden from your AC system, Braun says. Just be sure your ceiling fans are turning counterclockwise during the summer, which promotes greater air flow.
What happens when you turn off the AC fan?
Once the temperature inside the house reaches the desired input that you put into your thermostat, the cool air will stop. And depending on whether your AC fan is on auto or on, the fan will either turn off with the AC or keep running.
What does the fan setting on an air conditioner do?
What does the fan setting on an air conditioner do? The fan setting on an air conditioner gives you the ability to run the fan continuously or to have it go on and off automatically when the AC is cooling. The auto fan mode is generally a little cheaper to run because it doesn’t use the extra power to keep it running all the time.
What does auto 4 on AC fan do?
And depending on whether your AC fan is on auto or on, the fan will either turn off with the AC or keep running. Auto 4 automatically shutting off when the air conditioner shuts off and “fan on” to keep the fan running when the air conditioner turns off.
Why does my air conditioner keep running when the AC is not on?
If only the fan is running when the AC isn’t, there may be a faulty relay switch stopping the settings you enter on the thermostat from being communicated to the fan. It’s also possible there is another wiring issue or short circuit preventing the on and off commands from going to your fan.