LG LRFC25750ST, Service Manual

Page: 23 / 44

8-1-10 Defect Diagnosis Function
1. Automatic diagnosis makes servicing the refrigerator easy.
2. When a defect occurs, the buttons will not operate; but the tones. such as ding. will sound.
3. When the defect CODE removes the sign, it returns to normal operation (RESET).
4. The defect CODE shows on the Refrigerator and Freezer Display.
ERROR CODE on display panel
Note 1) Room Temperature Sensor is not indicated on the failure indicating part but indicated in checking
Display. (When pressing for more than the warmer key of Refrigerator Temp. and the warmer kye of
Freezer Temp for more than 1 second).
✽
LED check function: If simultaneously pressing the warmer key of Refrigerator Temp and the warmer key of
Freezer Temp for a second, all display LED graphics on. If releasing the button, the LED graphics displays
the previous status.
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Defect code signs Defect code signs
Better Model
REFRIGERATOR TEMP
COLDER WARMER 37
°
F IS RECOMMENDED 0
°
F IS RECOMMENDED
FREEZER TEMP
COLDER WARMER
EXPRESS
FREEZING
NO ITEM
ERROR CODE
CONTENTS REMARKS
1
2
3
4
5
6
Failure of freezer
sensor
Failure of
Refrigerator sensor
Failure of defrost
sensor
Failure of Room
Temperature
sensor
Failure of defrost
mode
Failure of BLDC
Fan Motor at
Freezing
Compartment
When display check
mode: Er rt
Cut or short circuit wire
Cut or short circuit wire
Cut or short circuit wire
Cut or short circuit wire
When defrost sensor
doesn’t reach 8°C within
2 hours after starting
defrost.
If there is no fan motor
signal for more than 65sec
in operation fan motor
Inspect Connecting wires
on each sensor
Snapping of defrost heater
or Temperature fuse, pull-
out of connector (indicated
minimum 2 hours after
failure occurs)
Poor motor, hooking to
wires of fan, contact of
structures to fan, snapping
or short circuit of Lead
wires
Er
Er
Er
Er
Er
FS
rS
dS
dH
FF