Description Of Function & Circuits Of Micom; Function - LG LMC25780 series Service Manual

8. DESCRIPTION OF FUNCTION & CIRCUITS OF MICOM

8-1 FUNCTION

8-1-1 Function
1. When the appliance is plugged in, it defaults to 37°F for the refrigerator and 0°F for the 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.
Best Model
Control range : 33°F ~ 46°F
0°C ~ 8°C
8-1-2 How to Change the Temperature Mode to °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
COLDER key of REF TEMP keys at the same time for over five seconds
2. The initial setting is °F. Whenever the mode is changed, the LED lights are changed.
8-1-3 Control of freezer fan motor
1. Freezer fan motor runs at either regular or high speed.(2,400 or 2,700 rpm.)
2. High RPM is used when electricity is first on, for ICE PLUS, and when refrigerator is overloaded.
Standard RPM is used for normal usage.
3. The fan motor is stopped when any door is opened.
8-1-4 ICE PLUS
1. The purpose of this function is to intensify the cooling speed of freezer and to increase the amount of ice.
2. Whenever selection switch is pressed, selection/release, the icon will turn ON or OFF.
3. If there is a power outage and the refrigerator is powered on again, ICE PLUS will be canceled.
4. To activate this function you need to press the ICE PLUS key and the icon will turn ON. This function will remain
activated for 24 hours. The first three hours the compressor and freezer fan will be ON. The next 21 hours the freezer will
be controlled at the lowest temperature. After 24 hours or if the iICE PLUS key is pressed again, the freezer will return to
its previous temperature.
5. During the first 3 hours :
(1) Compressor and freezer fan (HIGH RPM) run continuously.
(2) If a defrost cycle begins during the first 90 minutes of ICE PLUS, the ICE PLUS cycle will complete its cycle after
defrosting has ended. If the defrost cycle begins when iICE PLUS has run for more than 90 minutes, ICE PLUS will
run for two hours after the defrost is completed.
(3) If ICE PLUS is pressed during defrost, ICE PLUS icon is on this function will start seven minutes after defrost is
completed and it shall operate for three hours.
(4) If ICE PLUS is selected within seven minutes after compressor has stopped, the compressor (compressor delays
seven minutes) will start after the balance of the delay time.
(5) The fan motor in the freezer compartment rotates at high speed during ICE PLUS.
6. For the rest of 21 hours, the freezer will be controlled at the lowest temperature.
8-1-5. REFRIGERATOR LAMP AUTO OFF
1. To protect the risk of lamp heat, when the refrigerator door is opened for 7 minutes, the refrigerator lamp will be turned off
automatically.
Control range : -6°F ~ 9°F
- 24 -
-21°C ~ -13°C