
Press and hold the mute sounds key will illuminate on the right side of the display. The for three (3) seconds to enable control lock, mute sounds indicator will blink. Pressing the which prevents undesired changes to the unit mute sounds key or closing the door will acknowl settings. Temperature display will show “LOC”. edge the alarm and disable the audible portion and the temperature mode Simultaneously pressing and holding the (+) LED indicator until the door is left open another five and (–