LG LRSPC2031BS Service Manual page 28

MICOM FUNCTION
2-8. Function of Trouble Diagnosis
1. Function of trouble diagnosis is to make the repair service easy when the refrigerator is out of order during service.
2. The function control button does not work but the recognition sound is heard when the refrigerator is out of order.
3. It returns to normal conditions when trouble code led is off. (reset)
4. Trouble code is indicated by the freezing temperature indicator led in the refrigerator display. All leds except trouble code
are off.
TROUBLE
CODE INDEX
No. Trouble
Abnormal Freezer
1
sensor.
Abnormal Refrigerator
sensor 1 (R1)
2
(Upper part in the
refrigerator compartment)
Abnormal Refrigerator
sensor 2 (lower part
3
in the refrigerator
compartment)
Abnormal Defrost
4
sensor
Failed defrosting
5
Abnormal Open Air
6 Temperature
Detecting sensor
Abnormal
7
ice making sensor
Abnormal
8 ice maker unit
Max
F4
5
F3
F2
3
F1
1
Min
FRZ
TEMP
A
Trouble Code Indicator
F4 F3 F2 F1
Freezer sensor short
l l l
Refrigerator sensor 1 short circuit
l l l
Refrigerator sensor 2 short circuit
Note 1)
Defrost sensor short circuit
l l l
Defrost Heater, Temperature Fuse
short circuit.
Unplugged Connector
(Indicated 4 hour later after trouble)
Open air temperature detecting sensor
Note 1)
short circuit
Defrost sensor short circuit.
Note 1)
Faulty Ice Maker Unit Motor or
Note 1) Hall IC, L/Wire short circuit.
Faulty motor driving circuit.
REF
SELECT
TEMP
B C
Troubles
- 28 -
D
: On l : Off ˇ : Normal
Operation conditions during Trouble
Freezer
Compressor
Fan
15 min. on/ Standard
15 min. off RPM
Standard
ˇ
RPM
Standard
ˇ
RPM
Standard
ˇ
RPM defrosting
Standard
ˇ
RPM
ˇ ˇ
ˇ ˇ
Standard
ˇ
RPM
Defrost Step motor
Heater Damper
ˇ ˇ
ˇ Note 2)
ˇ ˇ
No
ˇ
ˇ ˇ
ˇ
ˇ ˇ
ˇ ˇ