How do I turn the Energy Saver mode on and off?

The Energy Saver button on the control panel turns Energy Saver mode on and off. When you press it to turn Energy Saver on, the Energy Saver icon lights up. The Energy Saver function is set to 'ON' at the factory. If condensation or water drops appear on the doors, turn the Energy Saver mode off by pressing the button again until the icon goes off. (Page 19, 24)