How To Toggle The Display Between °F & °C; Lock Function; Filter Condition Display Function; Description Of Function & Circuit Of Micom - LG LFX28977ST/01 Service Manual

10. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM
10-1 Function
10-1-1 Function
1. When the appliance is plugged in, it is set to 37°F for Refrigerator and 0°F for freezer.
You can adjust the Refrigerator and the Freezer control temperature by pressing the ADJUST button.
2. When the power is initially applied or restored after a power failure, it is set to Control temperature Previously.
3. If you do not press any button after turning on the power, only CRUSH or CUBE Label that has been selected will be
turned on and all other LEDs on the display Panel will be turned off within 60 seconds. (Power Save Mode)
4. If you press a button, only CRUSH or CUBE Label that has been selected will be turned on and all other LEDs on the
display Panel will be turned off within 20 seconds. (Power Save Mode)
5. If you do not want to use the Power Save Mode, you can change the Mode by pressing the ICE PLUS Button and
Freezer TEMP button simultaneously for more than 5 seconds.
10-1-2 How to Toggle the Display between °F & °C
1. The initial setting is °F and the display temperature mode can be changed from °F to °C or °C to °F by pressing and
holding the FRZ TEMP and the REF TEMP keys at the same time for over 5 seconds.
10-1-3 Lock function (dispenser and display button lock)
1. When the refrigerator is first turned on, the buttons are not locked.
"LOCK" is deactivated with no light on.
2. To lock the display, the dispenser, and the control panel, press
and hold the LOCK button for 3 seconds. "LOCK" is activated with
light off.
3. The LOCK button is the only control feature that remains active
in the locked state. The buzzer sound, other control buttons,
and the dispenser are deactivated.
4. To release from the locked state, press and hold the LOCK
button again for 3 seconds.

10-1-4 Filter condition display function

1. There is a replacement indicator light for the filter
cartridge on the dispenser.
2. Water filter needs replacement once six months or of
using water filter.
3. When the Water Filter Icon blinks, you must exchange
the filter.
4. After replacing the filter, press and hold the Light/Filter
button for more than 3 seconds.
After then water Filter icon turn off with reset status.
Ex) In selecting
"LOCK"
In initial Power On
Classification
/ Filter RESET
Filter Status
Display
- 70 -
Ex) In selecting
"LOCK" again
Blinking