DOWNLOAD LG GR-403SVQF Service Manual ↓ Size: 3.86 MB | Pages: 34 in PDF or view online for FREE

Model
GR-403SVQF
Pages
34
Size
3.86 MB
Type
PDF
Document
Service Manual
Brand
Device
Refrigerator
File
gr-403svqf.zip
Date

LG GR-403SVQF Service Manual ▷ View online

CIRCUIT DIAGRAM
NOTE : THE  PLUG  TYPE  ON  CIRCUIT  DIRGRAM  IS  SUBJECT
             TO  CHANGE  IN  DIFFERENT  LOCALITIES.
WH : WHITE        BL  : BLUE          RD : RED             BN : BROWN
PR  : PURPLE      YL : YELLOW     PK : PINK            SB : SKY  BLUE
GY  : GRAY          GN : GREEN       BK : BLACK         BO : BRIGHT  ORANGE
3854JD1012A
C
N
L
M
3
6
5
S
M
C
RY1
RY2
YL
BL
BL
BK
BK
PR
WH
BK
GN/YL
BK
BK
BK
RD
BN
CON1
CON2
CON4
BL  BL BO BO
CON3
1   2   3   4   5   6   7   8   9 10
1   2   3   4   5   6   7   8   9 10
1   2   3
5 4 3 2 1
1   2   3   4
BK
 
BN
 
RD BO YL  GN  BL  PR  GY WH
BK
 
BN
 
RD BO YL  GN  BL  PR  GY WH
YL
YL
BL
BL
BL
BN
BK
FUSE 
M
  (77 C)
OVER  LOAD
PROTECTOR
COMP-
RESSOR
POWER  SUPPLY
CORD
R-LAMP
F-SENSOR
DEF-SENSOR
DOOR  S/W-R
FAN  MOTOR
L-CORD
TE-PLATE
MAIN  CONTROL  P.C.B
DISPLAY  CONTROL  P.C.B
(1) SELF  TEST
(2)  FUNCTION  TEST
1)  FUNCTION  TEST  is  useful  to  check  the  connection  of  wires,  COMPRESSOR  and   DEFROST   SYSTEM.
2)  FUNCTION  TEST  is  started  with  the  push  of  TEST  KEY  on  MAIN  PCB.
3)  FUNCTION  TEST  is  released  and  goes  to  RESET  state  automatically  after  2  hours  if  the  TEST  KEY 
is  not  pushed  any  more.
FUNCTION TEST METHOD
NOTICE  BEFORE  TESTING :  1)  If  there  is  any  ERROR  during  power-on  state, 
ERROR CODE  is  displayed  with DISPLAY  LEDs
on  freezer  door,  the other  LEDs  are  all  off  and
DISPLAY  SWITCH  don't  work.
2)  Be  sure  to  RESET  power  after  ERROR  CHECK
and TEST  MODE.
:      ON
:      OFF 
NO ERROR  STATE
ERROR  CODE LEDs
METHOD OF ERROR  DETECTION
REMARK
F1
F2
F3
1
2
3
F-SENSOR  
ERROR
DEFROST  SENSOR
ERROR
DEFROST  ERROR
FREEZER  SENSOR  LEAD  WIRE  OPEN  OR  
SHORT
DEFROST  SENSOR  LEAD  WIRE  OPEN  OR 
SHORT
WHEN  THE  TEMPERATURE  OF  DEFROST
SENSOR  IS  BELOW  13˚C  AFTER  2  HOURS
FROM  DEFROSTING
CHECK   THE 
CONNECTIONS  OF  
EACH   WIRE  OF  
SENSOR
TEMPERATURE  
FUSE ERROR  OR 
DEFROST  ITSELF IS
OUT  OF  ORDER
MODE
MANIPULATION
COMPRESSOR,  FAN
DEFROST  HEATER
DISPLAY  LED
TEST  1
PUSH  TEST  KEY 
OPERATE  REGARDLESS
OFF
AII  ON
1  TIMES                                     OF  TEMPERATURE
TEST  2
PUSH  TEST  KEY 
OFF
ON  IF  DEF - SENSOR
ONLY  "FUZZY"  LED  ON
1  TIMES   IN  TEST  1
IS  BELOW  13˚C
RESET    
PUSH  TEST  KEY             • IF  DEF - SENSOR  TEMPERATURE  IS  OVER  13˚C  IN  TEST  2,  IT  GOES  TO  INITIAL  RESET,
1  TIMES    IN  TEST  2      • WHEN  IT  RETURNS  TO  INITIAL  RESET.  COMPRESSOR  OPERATES  AFTER  7  MINUTES.
COLDER
F1
F2
F3
COLD
3-1 DOOR
Freezer Door
1. Loosen 3 hexagonal bolts fixed to the upper hinge and
lift the door to remove the freezer door only. (Figure 6)
2. Loosen screws within the Door Gasket to remove the
Door Liner and the Door Gasket. (Figure 7)
Chilled Room Door
1. Loosen 2 screws holding the Hinge-C assembly to
remove the Chilled Room Door only. (Figure 8)
2. Remove the Door Liner and the Door Gasket by
loosening screws within the Door Gasket.
●  
Refrigerator Door
1. Loosen 3 hexagonal bolts fixed to the hinge lower-W to
remove the door only. (Figure 8)
2. Lossen screws within the Door Gasket to remove the
Door Liner and the Door Gasket.
3-2 DOOR SWITCH
To remove the Door Switch, pull it out by inserting a
(–) driver in the bottom of the switch and separate the Lead
Wire. (Figure 10)
3-3 THERMISTOR
Main function of the Thermistor is to control the
temperature of freezer.
1. Remove all shelves placed in the freezer.
2. Loosen 2 screws fixing the control box assembly to the
body.
3. Remove the thermistor from the control box after
separating lead wires.
GASKET
DOOR LINER-F
DOOR-F FOAM ASM
Figure  7
COVER
HINGE
UPPER
HINGE
UPPER
Figure  6
Figure  8
HINGE LOWER-W
Figure  9
DOOR SWITCH
LEAD WIRE
Figure  10
3. DISASSEMBLY
- 6 -
CONTROL
BOX
THERMISTOR
SCREW
Figure  11
3-4 FAN AND FAN MOTOR
1. After taking out the Control Box-F, remove the grill fan
by leaning the hook upwards with a '–' type driver and
pulling it out.
2. Pull out the shroud assembly.
3. Loosen 2 screws holding fan motor bracket to remove
the fan and fan motor assembly.
3-5 DEF' CONTROL ASM
Def control ASM consists of Defrost sensor and FUSE-M.
Defrost sensor functions to defrost automatically and it is
attached to the Evaporator and the metal side of the case
senses Temp.
Fuse-M is a kind of safety device for preventing
overheating of the Heater when defrosting.
At the temperature of 77
°
C(or 72
°
C), it stops the emission
of heat from the Defrost Heater.
1. After removing the Control Box, and Fan Grill loosen 2
screws and remove the Shroud by pulling it out with your
hand. (Figure 13)
2. Separate the Lead Wire connected with the Def control
ASM and replace the Def control ASM after cutting the
Tie Wrap. (Figure 14)
3-6. DAMPER CONTROL
There are two Damper Controls in the Chilled Room and
Refrigerator Room. (Figures 16 and 17)
1. Pull out the Knob Damper and remove the Control Box
after loosening screws fixing each Control Box. 
(Figure 17)
NOTE : When taking out the Damper Control from the
lnner Case, don't apply too much power to the
insulation Damper and the Damper Control.
3-7 LAMP
Replace the Lamp which is behind Control Box-R, by
turning it left. (Figure 18)
Figure  18
CHILLED ROOM
REFRIGERATOR
ROOM
Figure  16
SCREWS
Figure  17
- 7 -
FAN
BRACKET
FAN MOTOR
FAN SHROUD
FAN
DEF-SENSOR
FUSE-M
HOLDER FUSE
Figure  14
SHROUD-F
HOLDERS
Figure  13
Figure  12
8. EXPLODED VIEW
- 35 -
103A
105A
304A
317A
307A
314A
328A
312A
327A
315A
326A
325A
323A
320A
103C
319A
406B
283B
282B
282A
283A
282B
282A
418A
403A
401A
281C
281B
301A
281A
103B
411A
410H
410G
416A
416B
410F
410B
410A
407A
129A
413A
410F
410E
309A
310A
308A
501K
501F
501A
(501B,C,J,Q 504D)
318A
303A
403B
104B
Page of 34
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LG GR-403SVQF Service Manual ▷ Download

  • DOWNLOAD LG GR-403SVQF Service Manual ↓ Size: 3.86 MB | Pages: 34 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the LG GR-403SVQF in PDF for free, which will help you to disassemble, recover, fix and repair LG GR-403SVQF Refrigerator. Information contained in LG GR-403SVQF Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.