The fan mode of the air conditioner consumes less electricity than other modes such as: Auto, Cool, Dry, Heat, because the compressor stops working and only consumes electricity at a certain level. However, you should not use the fan mode on the air conditioner instead of a ceiling fan or a table fan for a long time.
This way of using will consume more energy. At the same time, the fan mode also has 4 speeds for you to choose from: light, medium, strong and automatic. These speeds will correspond to the level of power consumption. If you choose a stronger speed, it will cost more than a light speed