Table of Contents
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2. PARTS IDENTIFICATION
FREEZER
COMPARTMENT
Freezer Shelf
Automatic Ice Maker
Ice Cube Box
Freezer Temperature
Control Dial
REFRIGERATOR
COMPARTMENT
Temperature
Control Dial
Lamp
Shelves
Egg Box
Snack Corner
Crisper
Used to keep fruits
and vegetables
fresh and crisp.
Lamp
Freezer Door Bin
Door Cooling
On the refrigerator door,
the cold air passageway is
installedto supply
cold air to the doorside of
the refrigerator
compartment.
Egg Tray
Can Server
Dairy Corner
Can Storage
Adjustable
Door Bin
Refrigerator Door
Rack
Base Grille
Push the grille toward
the refrigerator
until it snaps
into place.
J
Leveling Screw
(Inside)
-5-
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Table of Contents
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Summary of Contents for LG LRTPC1831W
- Page 1 2. PARTS IDENTIFICATION FREEZER COMPARTMENT Freezer Shelf Lamp Automatic Ice Maker Freezer Door Bin Ice Cube Box Freezer Temperature Door Cooling Control Dial On the refrigerator door, the cold air passageway is REFRIGERATOR installedto supply cold air to the doorside of COMPARTMENT the refrigerator compartment.
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Page 2: Door Switch
3. DISASSEMBLY 3-1 DOOR 3-2 DOOR SWITCH • Freezer Door 1. To remove the door switch, pull out it with a slotted type 1, Remove the hinge cover by pulling it upwards, driver as shown in (figure 9), 2, Disconnect the lead wire from the switch. 2, Loosen hexagonal bolts fixing the upper hinge to the body and lift the freezer door. -
Page 3: Fan And Fan Motor
3-6 LAMP 3-4 FAN AND FAN MOTOR 1. Remove the freezer shelf. (If your refrigerator have an Ice Maker, disassemble the Ice maker first) REFRIGERATOR ROOM LAMP 2. Remove the grille by pulling it out and by loosening a screw. 3. -
Page 4: Ptc-Starter
4. ADJUSTMENT 4-1 COMPRESSOR 4-2-3 PTC-Applied Circuit Diagram • According to Starting Method for the Motor 4-14 Role The compressor intakes low temperature and low pressure gas evaporated from evaporator of the refrigerator, and OVERLOAD PROTECTOR(O.L.P) condenses this gas to high temperature and high pressure gas, and then plays delivering role to condenser. -
Page 5: Circuit Diagram
4-30LP (OVERLOAD PROTECTOR) CONTACTING 4-3-1 Definition of OLP POINT COVER (1) OLP (OVERLOAD PROTECTOR) is attached to the Compressor and protects the Motor by cutting the BIMETAL current to the Motor if the temperature rises and ONTACT,NG activates the bimetal spring in the OLR (2) When over-voltage flows to Compressor motor, the q PO,NT Bimetal works by heating the heater inside the OLP,... -
Page 6: Troubleshooting
6. TROUBLESHOOTING 6-1 COMPRESSOR AND ELECTRIC COMPONENTS Remove the PTC- Power Source. Starter from the _,Y (Rating Voltage +_10%)? __[_ Compressor measure the voltage between Terminal C of Compressor Terminals 5 or 6 of PTC. -_ OLP disconnected? Replace OLR C°hed_kic°nnecti°... - Page 7 6-2 PTC AND OLP Separate the PTC- Observation value is Normal operation of [__ __ Starter from Compressor Check another electric components, 220V/50Hz : 22£2+_30% Compressor 115V/60Hz : 6.8D+_30% impossible or poor. measure the 240V/50Hz : 33£2+_30% resistance between 127, 220V/60Hz : 22_2 No.
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Page 8: Electric Components
6-4 OTHER ELECTRIC COMPONENTS • Cooling is impossible Compressor I Check,,current,,owsto Cause doesn't run. the following components.i Poor contacting and a. Thermostat "- gas leakage. Shorted or broken. b. Starting devices Poor contacting c. OLP _' or shorted. Coil shorted. d. -
Page 9: Diagnosis Chart
6-4 SERVICE DIAGNOSIS CHART COMPLAINT POINTS TO BE CHECKED REMEDY Cooling is • Is the power cord unplugged from the outlet? * Plug to the outlet. impossible. • Check if the power S/W is set to OFF. * Set the switch to ON. •... - Page 10 6-5 REFRIGERATING CYCLE • Troubleshooting Chart CAUSE STATE OF STATE OF THE TEMPERATURE THE SET EVAPORATOR OF THE REMARKS COMPRESSOR PARTIAL Freezer Low flowing sound of A little higher • Refrigerant level is low due LEAKAGE compartment and Refrigerant is heard and than ambient to a leak.
- Page 11 • General Control of Refrigerating Cycle ITEMS UNIT STANDARDS PURPOSES REMARKS Pipe and Min. Pipe: within 1 hour, To protect The opening time should be reduced moisture piping system Comp: within 10 minutes. to a half of the standards during rain Drier: within 20 minutes.
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Page 12: Operation Principle Andrepair Method Oficemaker
7. OPERATION PRINCIPLE ANDREPAIR METHOD OFICEMAKER This manual describes function of models adhering Ice Maker, 7-1 OPERATION PRINCIPLE 7-%1 Operation principle of Ice Maker • Keep a level of ice-removing tray with "initial control" inputting power. • Wait until when water within ice-removing tray becomes cold Icing C_ after starting ice-making operation. - Page 13 7-2 Function of Ice maker 7-2-1 Initial control function 1. The level of the ice-removing tray (ice-removing container) after completing the MICOM initialization in the initial POWER ON ,returning to electricity failure and turning-off of ice-making stop switches. Namely, detection lever operates up and down. 2.
- Page 14 7-2-4 Ice-removing control function 1. Ice-removing control means operation to separate ice within ice-making tray ( ice-making container) after ice-making is completed. 2. Step to check ices stored at the ice bank (container for storing ice) are fully filled. It is considered as they are fully filled if signals of the hall sensor are at the On status ("high") before 3.6seconds after rotating positively the ice-making motor.
- Page 15 7-2-5 Test Function 1. Function used compulsory operation for the purpose of performing operation test, service and cleaning. This test function is performed if pressing the test switch mounted on the automatic ice-maker itself for 0.5 second or more. 2. The test button operates when the test function is not input but at the level status. It does not perform ice-removal control and water supply control if ices are full during operation of test function 3.
- Page 16 7-3 Failure diagnosis method of ice maker eplacement of Defect of power terminal • Check DC power (5V,12V) MAIN PCB Defect of ice-making sensor Replacement of ice-making sensor • Check resistance values of both ends of ice-making sensor (Pin for PCB CON2 1,2 PIN) •...
- Page 17 7-4 Explanation of ice maker circuits 7-4-1 Power circuit D1@4 CON1 roANS (MICOM) TEST The secondary party of transformer consists of power (12Vdc) for driving display and relay and power (5Vdc) supplying power to MICOM and IC. In this case, voltage at each part is as follows: Part Both ends of VA1 Both ends of CE2...
- Page 18 7-4-4 Load drive circuit 1. Load drive status check :SCK) (MICOM) Water Valve Load Type Measurement Location 1V below Condition - 22 -...
- Page 19 7-4-5 ICE MAKER drive/circuit /2sv _ 0% CON2 (REVERSE) +_,_m _ €.7KX2 (FDRWARD? CC8 _ T I_Loov 104 T CC91o4 f (MICOM) MAKER TEST CClOi _" i: 2K oo.i _" 62KF cc_i SENSBR ICE MAKER This circuit is a circuit used to embody functions such as ice-removing, full-ice detection, level noise, and ice-making tem- perature detection of ice-making tray (ice-making container), - 23 -...
- Page 20 7-5 Main PWB Assembly and Parts List 7-5-1 MAIN PWB - 24 -...
- Page 21 7-5-2 Replacement Part List DWG NO 3ESCRIPTION SPEC' MAKER REMARK 1870JB2059 >WBIMAIN _ I(DS 1107A) ]00 SAn t ,170JB2002 RANS PCB :117V,O:15V AESUN_TRANS 630JBSOO1B JE2D2 IT 0315P 2 ,4) IAE EU_ CON1 WAFER 630JBBOO4G 5MW2bg CON2 (EONH( 630JB800 _0 _MW250 CON3 IIZZJB2OO4A AICOMCHIPTMPB7C4OgN OSHIB# ICI[=BZZ_2_ 'IRH178050B...
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Page 22: Pwb Diagram
7-6 PWB DIAGRAM 01-D4 CON1 m,,Ns Vass TEST (ICE) XOUT RESET - 26 -... - Page 23 lOOuF /25v CON2 (SDA/SO) T R6 MAKER e81/2w ) MOTOR BA6222 MAKER TEST cosoi _ =K col _ _" _RF1 _ 162KF cc_i ICE MAKER SENSOR CON101 • • (WATER SUPPLYING TIME CONTROL S/W) (DVO) 4~10,12,13,16,24,25,26 -27-...
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Page 24: Exploded View And Replacement Parts List
8. EXPLODED VIEW & REPLACEMENT PARTS LIST • The parts of refrigerator and the shape of each part are subject to change in different localities. • Capacitors and fuse are optional parts. GR-T622, GR-T722 - 28 -... - Page 25 - 29 -...
- Page 26 - 30 -...
- Page 27 ICE MAKER PART -31 -...
- Page 28 2001.06.01 160/120 CIRCUIT DIAGRAM WATER SUPPLYING "lIME CONtrOL OPllON "IHERMOSTAT DEFRC_T,TIMER I_ CALql0N : Please unplug t hepower c ord Irom thevmJl oulbt. swrrcHNO TIME 10.5 sec g $ec 10 sec 11 sec 12 Sec 13 flec 14 flec L_MP_ :Rb s : /,'fc\, 15 sec _P_ITOR...
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