LG SxS GR-P247 Service Manual page 30

MICOM FUNCTION
2-15. Failure Diagnosis Function
1. Failure diagnosis function is function to facilitate service when nonconforming matters affecting performance of product
during use of product.
2. In occurrence of failure, pressing the function adjustment button does not perform function and only alarm sound ("Ding~") rings.
3. If nonconforming matters occurred are released during display of failure code, MICOM returns to the original state (Reset).
4. Failure code is displayed on the display part of setting temperature for the freezing room and the display part of setting
temperature for the cold storage room of LCD, which are placed at the display part of a refrigerator. All the LCD graphics
other than a failure code are turned off.
High quality type
(GR-P207, L207, P247, L247)
Failure Code MIN
TEMP
display Part
MIN
TEMP
WATER CRUSHED
E
Failure code display part
No. Item Setting
temperature
for freezing
1 Failure of freezer Er
sensor
2 Failure of refrigerator Er
sensor 1
3 Failure of refrigerator Setting temperature
sensor 2 display (Note 2)
4 Failure of frost Er
removal sensor
5 Poor of frost Er
removal
6 Failure of BLDC FAN Er
at freezing room
7 Failure of BLDC FAN Er
at machine room
8 Failure of Er
Communication
9 Failure of Setting temperature
Outside Sensor display (Note 1)
10 Failure of ice Setting temperature
removal sensor display (Note 2)
11 Failure of ice Setting temperature
maker unit display (Note 2)
✽ In display of the failure mode, all LCDs of setting temperature for freezing/ setting temperature for cold storage are turned
off (excluding Note1 and Note2).
A
B
MAX
C
MAX
OFF
ROOM
TEMP
CUBED
D
Setting
Contents of failure
temperature for
cold storage
FS Snapping or short-circuit of
freezer sensor
RS Snapping or short-circuit of
refrigerator sensor 1
Snapping or short-circuit of
refrigerator sensor 2
DS Snapping or short-circuit of frost
removal sensor
dH Snapping of frost removal heater
or temperature fuse, pull-out of
connector (indicated minimum 4
hours after failure occurs)
FF Poor motor, hooking of wires to
fan. Contact of structures to Fan.
Snapping or short-circuit of L/wire
CF (if there is no fan motor signal for
more than 60 seconds in
operation of fan motor
CO Connection between main PCB
and display PCB. Snapping or
short-circuit of L/wire.
Transmission between main PCB
and display PCB. Poor TR and
receiving part.
Snapping or short-circuit of outside
temperature perceiving sensor
Snapping or short-circuit of ice-
making sensor
Poor motor or Hall IC within ice-maker
unit. Snapping or short-circuit of
L/Wire. Poor main PCB drive circuit.
Basic type
GR-C247, B247, C207, B207)
TEMP
Failure Code
display Part
TEMP
Product operation status in failure
Freezer
Compressor
Fan
ON for 15mi n utes Standard
OFF for 15mi n utes RPM
G G
Standard
RPM
G G
Standard
RPM
G G
Standard
RPM
G G
Standard
RPM
G G
OFF (check every
30 mi n utes)
G G
Standard
RPM
G G
Standard
RPM
G G
G G
G G
- 30 -
MIN MAX
ROOM
TEMP
MIN MAX
OFF
A B
G G
: Normal Operation
M/C room Defrost
Fan Heater motor damper
G G G G
G G G G
Open f o r 10munut e s,
cl o si n g f o r 15 mi n ut e s
G G G G
G G
No frost
removal
G G G G
G G G G
G G
OFF (check
every 30 mi n utes)
G G G G
G G G G
G G
G G G G
G G
G G G G
G G
C
Stepping
G G
G G
G G
G G
G G
G G
G G
G G
G G
G G