You can turn on or off the buzzer sound to notify you when you set or change the function of the air conditioner.
Press and hold the Ñ button for about 3 seconds to set the Mute function.
Set the function each time, the function changes on and off.
When the Mute is set, OF appears for a moment on some indoor unit display and the buzzer sound turned off.
This function may operate differently depending on the model.