Description Of Function & Circuit Of Micom - LG LRFD21855ST Service Manual

8. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM
8-1 FUNCTION
8-1-1 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 automatically set to "37" & "0".
8-1-2 How to Toggle the Display between °F & °C
1. 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 one second.
2. The initial setting is °F. Whenever the mode is changed, the LED lights are changed.
8-1-3 Lock function (dispenser and display button lock)
1. When the refrigerator is first turned on, the buttons are not locked. The display panel shows the padlock
unlocked icon.
2. To lock the display, the dispenser, and the control panel, press
and hold the LOCK button for 3 seconds. The locked padlock
icon is displayed with the word "LOCK" printed beside it.
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.
8-1-4 Filter condition display function
1. There is a replacement indicator light for the water
filter cartridge on the dispenser.
2. Water filter needs replacement once six months or
about 28,000 seconds of using water filter.
3. Water filter light and "FILTER RESET HOLD 3 SECS"
text turn on to tell you need to replace the filter soon.
4. After replace the filter, press and hold the lock button
more than 3 seconds.
Then water filter light and "FILTER RESET HOLD 3
SECS" text turn off with reset status.
8-1-5 Express freezing selection
Please select this function for quick freezing.
• Function is repeated following below whenever pressing Express FRZ button.
• Expressing freezer function automatically turns off after a fixed time passes.
LOCK CONTROL
In initial Power On
Classification
/ Filter RESET
Filter Status
Display
- 22 -
LOCK
DISPENSER & BUTTON DISPENSER & BUTTON
Ex) In selecting Ex) In selecting
"LOCK" "LOCK" again
Replace indicator
light on
FILTER RESET
HOLD 3SECS
EXPRESS FRZ