LG GC-B207, Service Manual

Page: 27 / 145

2-12. Function of Trouble Diagnosis(88-LED)
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 LED, which are placed at the display part of a refrigerator. All the LED graphics
other than a failure code are turned off.
✽
In display of the failure mode, all LEDs of setting temperature for freezing/ setting temperature for cold storage are turned
off (excluding Note1 and Note2).
MICOM FUNCTION
- 27 -
EXPRESS FRZ
CHILD LOCK
LOCK EXPRESS FRZ FREEZER REFRIGERATOR
FRZ TEMP REF TEMP
EXPRESS FRZ DISPENSER FREEZER REFRIGERATOR FILTER LOCK
EXPRESS
FRZ
CUBE
WATER
CRUSH FRZ TEMP REF TEMP
FILTER STATUS DISPENSER
BUTTON
ON
C
E F A B D
Failure Code Display Part
C A B D
Failure Code Display Part
● ●
: Normal Operation
1
2
3
4
5
6
7
8
9
10
11
Er FS
Er rS
Setting temperature
display (Note 2)
Er dS
Er dH
Er FF
Er CF
Er CO
Setting temperature
display (Note 1)
Setting temperature
display (Note 2)
Setting temperature
display (Note 2)
Failure code display part
Setting
temperature
for freezing
Setting
temperature for
cold storage
No. Item
Contents of failure
Freezer
Fan
Compressor
Stepping
motor damper
Defrost
Heater
M/C room
Fan
Product operation status in failure
Failure of freezer
sensor
Failure of refrigerator
sensor 1
Failure of refrigerator
sensor 2
Failure of frost
removal sensor
Poor of frost
removal
Failure of BLDC FAN
at freezing room
Failure of BLDC FAN
at machine room
Failure of
Communication
Failure of
Outside Sensor
Failure of ice
removal sensor
Failure of ice
maker unit
Snapping or short-circuit of
freezer sensor
Snapping or short-circuit of
refrigerator sensor 1
Snapping or short-circuit of
refrigerator sensor 2
Snapping or short-circuit of frost
removal sensor
Snapping of frost removal heater
or temperature fuse, pull-out of
connector (indicated minimum 4
hours after failure occurs)
Poor motor, hooking of wires to
fan. Contact of structures to Fan.
Snapping or short-circuit of L/wire
(if there is no fan motor signal for
more than 115 seconds in
operation of fan motor
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.
Standard
RPM
Standard
RPM
Standard
RPM
Standard
RPM
Standard
RPM
OFF
Standard
RPM
Standard
RPM
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OFF
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ON for 15minutes
OFF for 15minutes
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No frost
removal
● ●
● ●
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Open for 10munutes,
closing for 15 minutes
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