This function can turn on/off the buzzer sound to notify you when you set or change the function of the air conditioner.
Turn the appliance on.
Press Mute(3 s) button and hold it about 3 seconds.
Each time the button is pressed, the function turns on/off.
When the Mute is set, ‘OF’ appears for a moment on the indoor unit display and the buzzer sound turned off.