LG LMC25780 series Service Manual page 25

8-1-6 Alarm for Open Door
1. This feature sounds a buzzer when the freezer or refrigerator door is not closed within 1 minute after it is opened.
2. One minute after the door is opened, the buzzer sounds three times each for 1/2 second. These tones repeat every 30
seconds.
3. The alarm is cancelled when the freezer or the refrigerator is closed while the buzzer sounds.
Freezer Door
Closed
or Refrigerator
Door
Buzzer
8-1-7 Buzzer Sound
When the button on the front display is pushed, a Ding~ Dong~ sound is produced.
8-1-8 Defrosting (removing frost)
1. Defrosting starts each time the compressor running time reaches between 7~50 hours and 50 hours according to door
open time.
2. For initial power on or for restoring power, defrosting starts when the compressor running time reaches 4 hours.
3. Defrosting stops if the sensor temperature reaches 8°C or more. If the sensor doesn't reach 8°C in 1 hours, the defrost
mode is malfunctioning.
4. Defrosting won't function if its sensor is defective (wires are cut or short circuited)
Open Closed Open
Within 1 min.
- 25 -
3 Times 3 Times
30 sec 30 sec
1 min.
Closed
3 Times 3 Times
30 sec