Related Manuals for LG GL-S392DM
Summary of Contents for LG GL-S392DM
- Page 1 Icebeam Door Cooling E L E C T R O N I C REFRIGERATOR SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL MODEL : GL/GR- S392DM GL/GR- S432DM...
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Page 2: Table Of Contents
CONTENTS CONTENTS.....................................2 SERVICING PRECAUTIONS..............................3 SPECIFICATIONS...................................4 PARTS IDENTIFICATION...............................5 DISASSEMBLY..................................6-7 DOOR....................................6 DOOR SWIT CH..................................6 FAN AND F A N MOTOR................................6 DEF' CONTROL A SM................................7 LAMP ....................................7 CONTROL BOX-R................................7 ADJUSTMENT..................................8-9 COMPRESSOR ..................................8 PT C-ST ARTER ..................................8 OLP (OVER L OAD PRO TECT OR)............................9 CIRCUIT DIAGRAM................................9 TROUBLESHOOTING..............................10-15... -
Page 3: Servicing Precautions
SERVICING PRECAUTIONS RECHARGING IN COMPRESSOR vacuum operation is over, add the quantity in grams of R134a to the refrigeration system. Remember that Test the refrigeration system by connecting it electrically before every system has an exact quantity of R134a with a refilling operation. -
Page 4: Specifications
1. SPECIFICATIONS SPECIFICATION GL-S392DM GL-S432DM Model Number GR-S392DM GR-S432D M Dimension (mm) Width Height 1680 1832 Depth Weight(Kg) Gross Capacity (Lit) General features Temp. Control Electronic Display Internal Temp. function Icebeam Door Cooling Door Cooling Memory Back-up Super Cool Fuzzy Logic Key &... -
Page 5: Parts Identification
1. PARTS IDENTIFICATION Freezer Temperature Freezer Lamp (optional) Freezer Shelf Control Dial FREEZER COMPARTMENT Triple Twist Ice Trays Freezer Door Bank Ice Basket Utility Box (optional) 6 6 6 6 6 6 5 5 5 5 5 5 4 4 4 4 4 4 Door Switch Storage Shelf... -
Page 6: Disassembly
3. DISASSEMBLY 3-1 DOOR 3-2 DOOR SWITCH l Freezer Door 1. To remove the door switch, pull out it with a '—’ type 1. Remove the hinge cover by pulling it upwards . driver as shown in (F igure 9). 2. -
Page 7: Def' Control A Sm
Disconnect the housing of lead wire. 3-6 REFRIGERATOR ROOM LAMP Separate the Fan Assy. 1. Remove the cover lamp-R by pulling with a (-)' type Loose 2 screw fixed to the Bracket. driver. Pull out Shroud-F remove the Fan Motor Assy. 2. -
Page 8: Adjustment
4. ADJUSTMENT 4-1 COMPRESSOR 4-2-3 PTC-Applied Circuit Diagram • According to S t arting Method of Motor 4-1-1 Role The compressor inhales low temperature and low pressure gas evaporated from Evaporator of the Refrigerator, and OVERL O AD PRO TECT condenses this gas to high temperature and high pressure gas, and then plays delivering role to Condenser. -
Page 9: Olp (Over Load Protector)
4-3 OLP (OVER LOAD PROTECTOR) CONTACTING 4-3-1 Definition of OLP POINT COVER (1) OLP (OVER L OAD PRO TECT OR) is attached to Hermetic Compressor and protects Motor by cutting off BIMETAL current in Compressor Motor by Bimetal in the OLP in case of over-rising temperature. -
Page 10: Troubleshooting
6. TROUBLESHOOTING 6-1 COMPRESSOR AND ELECTRIC COMPONENTS (Rating Voltage Remove the PTC-Starter Power Source. ±10%)? from the Compressor and measure the voltage between Terminal C of Compressor and Terminals 5 or 6 of PT C . No Voltage. OLP disconnected? Replace OLP. -
Page 11: C And Olp
6-2 PTC AND OLP Normal operation of Separate the PTC from Observation value is Check another Compressor is Compressor and 220V/50Hz : 22 ±30% electric components . impossible or poor. measure the resistance 115V/60Hz : 6.8 ±30% between No. 5 and 6 240V/50Hz : 33 ±30% (only RSIR T ype) or No. -
Page 12: Other Electric Component
6-3 OTHER ELECTRIC COMPONENTS Cooling is impossible Compressor Check if current flows to Cause. doesn't run. the following components. a. Thermistor Poor contacting or shorted. b. Starting devices Shorted or broken. Poor contacting c. OLP or shorted. d. Compressor coil Coil shorted. -
Page 13: Service 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 14: Refrigerating Cycle
6-5 REFRIGERATING CYCLE Troubleshooting Chart TEMPERATURE STATE OF STATE OF THE CAUSE REMARKS OF THE THE SET EVAPORATOR COMPRESSOR PARTIAL Freezer and Low flowing sound of A little high • A little Refrigerant LEAKAGE Refrigerator Refrigerant is heard and more than •... - Page 15 General Control of Refrigerating Cycle ITEMS CONTENTS AND SPECIFICATIONS REMARKS WELDING (1) H 30 • Chemical Ingredients • Recommend H34 containing 34% Ag in the Ag: 30%, Cu: 27%, Zn: 23%, Cd: 20% Service Center. • Brazing T emperature: 710~840 °C (2) Bcup-2 •...
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Page 16: Description Of Function & Circuit Of Micom
7. DESCRIPTION OF FUNCTION & CIRCUIT OF MICOM 7-1 FUNCTION 7-1-1 FUNCTION When the appliance is plugged in , it is set to ‘Normal’ (3 LEDs are on). As we press the button LEDs glow from cold to coldest. When the power is initially applied or restored after a power failure, it is automatically restored the previous settings because a Memory Back-up is provided for all settings. - Page 17 7-1-2 SUPER COOL 1. This feature is to shorten the cooling time of the refrigerator by keeping the comp , fan running for a while. When the Super Cool button is pushed, the Super Cool LED turns on in order and the comp keeps on running. In 2 hours, the Super Cool mode will be cleared .
- Page 18 7-1-6 ERROR MODE INDICATION : SUPER COOL COLD COLDEST TEMP Operate Normal Error Code Operation with Error Defect display Item Information Comp R1 R2 R3 R4 Heater The R . sensor is open 15 Min ON/ Faulty R sensor or short circuit 15 Min OFF The D.
- Page 19 ERRORS EXPLANATION When 2 error are present at the same time, the Micom only shows one on display. When fix all error the Micom reset the refrigeratorand work normally at Last Notch. No backup for super cool. During the error, Switch does not work, Setting change not possible.However the Key recognition beep sounds.
- Page 20 7-1-8 TEST MODE • The Test Mode is useful for checking functionality also helps tofind out the defectivep art in case of fault. • The Test Key is on Main PCB, The Test Mode will be clear in 2 Hrs. After Test Mode, System Reset is must . •...
- Page 21 7-2 PCB FUNCTION 7-2-1 POWER CIRCUIT (MICOM) The secondary part of the TRANS is composed of the power supply for the display and relay and that for the MICOM and IC (5Vdc). The voltage for each part is as follows. PART VOLTAGE 220V (AC)
- Page 22 7-2-2 OSCILLATION CIRCUIT (MICOM) This circuit is to generate the base clock for calculating time and the synchro clock for transmitting data from and to the inside logic elements of the IC1(MICOM). Be sure to use the authentic parts since the calculating time by the IC1 may be changed or it will not work if the OSC1 SPEC is changed.
- Page 23 7-2-4 LOAD DRIVE & OPEN DOOR DETECTION CIRCUIT 1. Load Drive Condition Check Load Type Compressor Defrosting Heater Measurement Location Q1 Collector Q2 Collector 1V or Below Condition - 23 -...
- Page 24 2. Open Door Detection Circuit Check (MICOM) Measurement Location Freezer/ (PIN NO. 8) Refrigerator Door Closed Open - 24 -...
- Page 25 7-2-5 TEMPERATURE SENSOR CIRCUIT <LED MODEL> (MICOM) The upper CIRCUIT reads REFRIGERA TOR temperature, and DEF-SENSOR temperature for defrosting and the indoor temperature for compensating for the surrounding temperature , into MICOM. OPENING or SHORT state of each TEMPERA TURE SENSOR are as follows SENSOR CHECK POINT NORMAL(-30 °C ~ 50 °C)
- Page 26 7-2-6 SWITCH INPUT CIRCUIT * The circuit shown below is the input circuit to detect the signals of the test S/W for checking the refrigerator. (MICOM) (MICOM) - 26 -...
- Page 27 7-2-7 TEMPERATURE COMPENSATION & OVERCOOLING/UNDERCOOLING COMPENSATION CIRCUIT Table of Temperature Compensation by adjusting the Refrigerator resistance (Difference with the current temperature) REMARKS Temp. Compensate. Value R(RCR1) E.g.) If the refrigerator compensation resistance (RCR) is changed from 10K (the current resistance) to 18K (the adjustment resistance), the temperature 180 K ohms + 2.5...
- Page 28 7-2-8 KEY BUTTON INPUT & DISPLAY LIGHT ON CIRCUIT The circuit shown above is to determine whether a function control key on the operation display is pushed and to turn on the corresponding function indication LED (LED Module). The drive type is the scan type. - 28 -...
- Page 29 7-3. RESISTANCE SPECIFICATION OF SENSOR TEMPERATURE SENSOR RESISTANCE OF REFRIGERATOR (DEFROST) SENSOR - 20 °C 77 K - 15 °C 60 K - 10 °C 47.3 K - 5 °C 38.4 K 0 °C 30 K + 5 °C 24.1 K + 10 °C 19.5 K + 15 °C...
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- Page 32 7-5 MAIN PWB ASS'Y AND PARTS LIST 7-5-1 MAIN PWB ASS'Y - 32 -...
- Page 33 7-5-2 REPLACEMENT PARTS LIST 0CE4766H638 47UF SMS,SG 25V 20% FM5 TP 5 - 33 -...
- Page 34 7-5-3 PWB ASS'Y, DISPLAY AND PARTS LIST - 34 -...
- Page 35 7-6 PWB DIAGRAM 7-6-1 PWB ASSEMBLY, MAIN - 35 -...
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- Page 37 7-6-2 PWB ASSEMBLY, DISPLAY - 37 -...
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Page 38: Exploded View & Replacement Parts List
109A 129A 146A 106A 106A 155J 1.Case Foaming Compartment... - Page 39 212C 212A 212C 212A 244C 244A 233B 244A 244C 235A 2. Door Foaming Compartment...
- Page 40 3.Shroud & Grill Compartment 405C 404A 405C 405A 329A 139A 4.Control Box Assembly...
- Page 41 411A 501K 410J 501F 318A 105A 312A 5. Machine Room Compartment...
- Page 42 LG Electronics...