If you set your air conditioner temperature higher than the temperature outside, the air conditioner will not turn on or actively cool the indoor space. It will effectively act as a fan, circulating the air without providing any cooling effect.
The air conditioner works by removing heat from the indoor air and transferring it outside. When you set the temperature higher than the outside temperature, the air conditioner's thermostat will sense that the indoor temperature is already lower than the desired setting, and it will not activate the cooling mode.
However, even if the air conditioner is not actively cooling, it can still provide some benefits. It can help circulate and filter the air, which can contribute to improved air quality and comfort. Additionally, the fan mode can create a breeze and provide a sense of cooling through evaporative cooling, which is the process of air movement increasing the evaporation of moisture from your skin, creating a cooling effect.
Keep in mind that running the fan mode of the air conditioner without cooling will not reduce humidity levels or dehumidify the space. If you live in a humid environment, it may be beneficial to use a dehumidifier or set the air conditioner to a temperature lower than the outside temperature to maintain comfortable humidity levels indoors.