LG LRSC26980TT Service Manual - Page 25

Variable freezing fan, 9. Cooling fan motor, 10. Door alarm, 11. Button selection buzzer bell

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Page 25 highlights

MICOM FUNCTION 2-8. Variable freezing fan 1. To increase the cooling speed and load response speed, the MICOM will switches the freezer compartment fan motor between high and regular speeds. 2. The MICOM runs the freezer fan at high speed only at initial power-up, Express Freezing operation, or in response to a high load. The fan runs at the regular speed in all other circumstances. 3. When you open the refrigerator door while the fan is running at high speed, the MICOM will switch the fan to regular speed. If you open the freezer door or the home bar door, the fan is switched off. 4. If the MICOM determines the fan is obstructed (the blade cannot turn) it switches the fan off. When there is no fan rotation signal for 115 seconds, the MICOM displays an error on the display. To restart the fan, clear the obstruction and turn the power off and back on. 2-9. Cooling fan motor 1. The cooling fan is switched ON and OFF in conjunction with the compressor. 2. The cooling fan runs at a single speed. 3. The Failure sensing method is the same as in the fan motor of the freezing fan motor (refer to failure diagnosis function table for failure display). 2-10. Door alarm 1. If the doors are left open for more than one minute, the buzzer sounds three 1/2-second tones at thirty second intervals for four times. 2. If all the doors of freezing/cold storage room or home bar are closed during door open alarm, alarm is immediately turns off. Doors of freezing / cold storage room Closing Opening Closing Opening or home bar Closing 3 Times 3 Times 3 Times 3 Times BUZZER Within a minute A minute 30 30 30 seconds seconds seconds 2-11. Button selection buzzer bell 1. The DING sounds if you press any button on the front display. - 25 -

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2-8. Variable freezing fan
1. To increase the cooling speed and load response speed, the MICOM will switches the freezer compartment fan motor
between high and regular speeds.
2. The MICOM runs the freezer fan at high speed only at initial power-up, Express Freezing operation, or in response to a
high load. The fan runs at the regular speed in all other circumstances.
3. When you open the refrigerator door while the fan is running at high speed, the MICOM will switch the fan to regular
speed. If you open the freezer door or the home bar door, the fan is switched off.
4. If the MICOM determines the fan is obstructed (the blade cannot turn) it switches the fan off. When there is no fan rotation
signal for 115 seconds, the MICOM displays an error on the display. To restart the fan, clear the obstruction and turn the
power off and back on.
2-9. Cooling fan motor
1. The cooling fan is switched ON and OFF in conjunction with the compressor.
2. The cooling fan runs at a single speed.
3. The Failure sensing method is the same as in the fan motor of the freezing fan motor (refer to failure diagnosis function
table for failure display).
2-10. Door alarm
1. If the doors are left open for more than one minute, the buzzer sounds three
1
/
2
-second tones at thirty second intervals for
four times.
2. If all the doors of freezing/cold storage room or home bar are closed during door open alarm, alarm is immediately turns
off.
2-11. Button selection buzzer bell
1. The DING sounds if you press any button on the front display.
MICOM FUNCTION
- 25 -
Doors of freezing /
cold storage room
or home bar
BUZZER
Closing
Opening
Within
a minute
A minute
30
seconds
30
seconds
30
seconds
Opening
Closing
Closing
3 Times
3 Times
3 Times
3 Times