LG air conditioner
18-button air conditioner control: Press and hold the Temp Room button or press and hold the Mode button for about 3 seconds.
Control only 9 buttons: Remove the control battery in about 12 hours and then reinstall.
Air Conditioner Electrolux Press 2 buttons to increase and decrease the temperature on the controller at the same time until the control screen shows the Celsius degree again. Toshiba air conditioner Remove the air conditioner control battery, then reinstall it. Mitsubishi Heavy Air conditioner Mitsubishi Electric Air conditioner Samsung