LG LSC26905TT Service Manual page 22

MICOM FUNCTION
(2) GR-L267BV(T)RA, GR-L267BV(T,S)PA (Refer to appendix)
Failure code indication part
No. Item Freezer room
notch temperature
display
1 Abnormal Er
freezer sensor
2 Abnormal refrigerator Er
sensor 1 (R1)
(Upper part in the
refrigerator
compartment)
3 Abnormal refrigerator Normal display
sensor 2 (R2)
(Middle part in the
refrigerator
compartment)
4 Abnormal defrost Er
sensor
5 Failed defrosting Er
6 Abnormal freezing Er
BLDC motor
7 Abnormal cooling Er
BLDC motor
8 Abnormal Er
communication
9 Abnormal Normal display
ambient sensor
10 Abnormal Normal display
Optichill sensor
11 Abnormal Normal display
icemaker sensor
12 Abnormal Normal display
icemaker unit
Abnormal Normal display
13
W/T sensor
Abnormal Normal display
14
Drive Micom
Communication
Failure Code Indication Part
EXPRESS
CUBE
FRZ
(EXPRESS)
WATER
ON
FRZ TEMP
CRUSH
(JET)
C F A
E
Refrigerator room
Contents of failure
notch temperature
display
FS Freezer sensor short circuit
rS Refrigerator sensor1 short circuit
Refrigerator sensor2 short circuit
(Note 2)
dS Abnormal short circuit
dH Defrost heater, temperature fuse short
circuit, unplugged connector(indicated
4 hour later after trouble)
FF Motor defect, hooked of lead wire
to fan, contact of structures with
fan, short or open of lead
CF wire(there is no signal of BLDC
motor more than 115 seconds in
operation of fan motor)
CO Short or open of lead wire
connecting between main PCB
and display PCB, transmission tr
and receiving part
Ambient sensor short circuit
(Note 2)
Optichill sensor short circuit
(Note 1)
Icemaker sensor short circuit
(Note 1)
Faulty icemaker unit motor or hall
(Note 1) ic, lead wire short circuit, faulty
motor dirving circuit.
Water Tank Sensor short circuit
(Note 1)
Abnormal of TR, Micom between
(Note 1) Set Micom and Drive Micom
(OptiChill Display)in MAIN PCB
FILTER
DIGITAL CONTROL
FILTER RESET
C C
HOLD 3SECS
F F
REF TEMP
B
Product operation status in failure
Compressor
BLDC motor
ON for 15mi n utes / Standard
OFF for 15mi n utes
G G
Standard
G G
Standard
G G
Standard
G G
Standard
G G
G G
Standard
G G
Standard
G G
G G
G G
G G
G G
G G
- 27 -
C
F
ROOM TEMPERATURE
LOCK
3 SECS
DISPENSER & BUTTON
D
G G
: Proper operation
Freezing Cooling Defrost
BLDC motor Heater
G G G G
RPM
G G G G
RPM
G G G G
RPM
G G
No defrost
RPM
G G G G
RPM
G G G G
OFF
G G
OFF
RPM
G G G G
RPM
G G G G
G G
G G G G
G G
G G G G
G G
G G G G
G G
G G G G
G G
G G G G
G G
Stepping
motor damper
G G
Full opening for
10 minutes/
Full closing for
15 minutes
G G
G G
G G
G G
G G
G G
G G
G G
G G
G G
G G
G G