How do I turn the cooling off and back on?

To turn cooling off, press and hold the LOCK and MEASURED FILL buttons at the same time for 3 seconds; the Cooling Off icon will blink seven times and then remain lit. When cooling is off, the dispenser paddles and all controls except Lock and Measured Fill are disabled. Press and hold LOCK and MEASURED FILL for 3 seconds again to turn cooling back on. (Page 20)