REFRIGERATOR MICOM
DOOR OPEN ALARM
When any door has been open for more than one minute, the buzzer sounds
three times for ½ second each and then repeats these tones every 30 seconds.
The alarm is cancelled when the door is closed.
This feature can be deactivated by pressing the Alarm/Lock button on the display
panel.
BUZZER
The buzzer sounds a ding whenever a button on the control panel is pushed.
(See schematic of this circuit, page 68.)
DEFROST MODE
A defrost cycle is initiated every time the compressor has logged 7 hours’ run
time. At initial power up or when power is restored after an outage, the first
defrost cycle will begin after 4 hours’ run time.
Defrosting stops automatically when the sensor detects a temperature over
46.4° F (8° C). If the temperature does not reach 46.4° F (8° C) within 2 hours,
the defrost mode is malfunctioning. (See diagnosis, page 51.)
LFX21960ST/LFX25960xx Page 47 of 75 TRAINING MANUAL
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