LG GN-332 Service Manual

Text of LG GN-332 User Guide:

• LG GN-332, CAUTION BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL. MODEL: GN-332 COLOR: ALL COLOUR REFRIGERATOR SERVICE MANUAL http://biz.lgservice.com Ref. No. GR-332

• LG GN-332, SAFETY PRECAUTIONS....................................................................................................................................................... 2 SERVICING PRECAUTIONS.................................................................................................................................................. 3 SPECIFICATIONS................................................................................................................................................................... 4 PARTS IDENTIFICATION.............................

• AIR RECHARGING IN COMPRESSOR Test the refrigeration system connecting it electrically before refilling operation. It is necessary to ascertain the function of the motor-compressor and identify the defects immediately. If defects have been found, empty the old system of possible R-134a residue by breaking off the end of the extension piece at its narrow point. (Figure 1) Replac

• LG GN-332, 1. SPECIFICATIONS - 4 - ITEMS SPECIFICATIONS DIMENSIONS (mm) 610X667X1580 (WXDXH) NET WEIGHT (kg) 60 COOLING SYSTEM Fan Cooling TEMPERATURE CONTROL Knob Dial Full Automatic DEFROSTING SYSTEM Heater Defrost With a Timer OUT CASE Coated Steel Sheet INNER CASE A B S INSULATION Polyurethane Foam ITEMS SPECIFICATIONS SHELF FREEZER 1 EA REFRIGERATOR 2 EA VEGETABLE TRAY Drawer Type EGG TRAY 2 Pieces ICE TRAY 1 Piece ( 2) ICE BANK 1 Piece COMPRESSOR PTC Starting Type EVAPORATOR Fin Tube Type CONDENSER Pipe

• LG GN-332, 2. PARTS IDENTIFICATION - 5 - Egg Storage Rack Freezer Door Rack Refrigerator Door Rack Leveling Screw FREEZER COMPARTMENT Freezer Temperature Control Dial Ice Trays Twisting Ice Serve(Option) or General Type Ice Making Freezer Shelf (Plastic or Steel) REFRIGERATOR COMPARTMENT Deodorizer (Option) Chilled Room Temperature Control Dial Lamp F.I.R Lamp (Option) Shelves (Plastic or Steel) Multi Flow Duct Distributes cold air to each part of refrigerator compartment. Vegetable Drawer Used to keep fruits and vegetables, etc. fresh and crisp. Dairy Corner (Option) Bottle Guide Movable Rack Wine Rack(Option) NOTE : This

• 3-1 DOOR ● Freezer Door 1. Remove the hinge cover by pulling it upwards. 2. Loosen hexagonal bolts fixing the upper hinge to the body and lift the freezer door. 3. Pull out the door gasket to remove from the door foam Ass'y. ● Refrigerator Door 1. Loosen hexagonal bolts fixing the lower hinge to the body to remove the refrigerator door only. 2. Pull out the door ga

• LG GN-332, 6. Disconnect the housing of lead wire. 7. Separate the Fan Assy. 8. Loose 2 screw fixed to the Bracket. 9. Pull out Shroud-F remove the Fan Motor Assy. 10. Separate the Motor Bracket and Rubber. 3-5 DEF' CONTROL ASSY Def control Assy consists of Defrost Thermostat and FUSE–M. Defrost Thermostat functions to defrost automatically and it is attached to metal side of the Evaporator and senses Temp. Fuse-M is a kind of safety device for preventing over- heating of the Heater when defrosting. At the temperature of 77°C, it stops the emission of heat from the Heater. 1. Pull out the

• LG GN-332, 3-8 REPLACEMENT OF DOOR OPENING TYPE ● Precaution 1. Before replacing the door opening type, first of all, you should take out foodstuffs and accessories like shelves or trays, and so on which are not fixed in the refrigerator. 2. Use the '+' Driver, Bolt Driver, Torque Wrench or Spanner to fix or remove the bolt. 3. Be careful not to fall down the refrigerator in disassembling or assembling the Hinge Lower and the Adjustable Screw Asm. Don't lay the refrigerator down in working with it, it will cause to get out of order. 4. Be careful not to drop the door in disassembling or assembling the

• LG GN-332, 5 Move the Position of Adjustable Screw Assembly G . 7 Move the Cap H , Bracket I of the Refrigerator Door. 9 Assembe the Door Stopper-F K for Right Opening Type. 11 Move the Pin Position M of the Hinge Upper. 6 Assemble the Hinge Lower F . 8 Move the Cap J and Assemble the Hinge-C K . After removing the washer. 10 Move the Cap L and Assemble the Freezer Door C . 12 Assemble the Hinge Upper B and the Cap A . - 9 - 7 9 8 11 3 13 2 1 3 12 5 4 10 6

• LG GN-332, 4-1 COMPRESSOR 4-1-1 Role The compressor inhales low temperature and low pressure gas evaporated from Evaporator of the Refrigerator, and condenses this gas to high temperature and high pressure gas, and then plays delivering role to Condenser. 4-1-2 Composition The Compressor is Composed of Compressor Apparatus compressing gas, Compressor Motor moving Compressor Apparatus and Case protecting Compressor Apparatus and Motor. There are PTC-Starter, and Over Load Protector (OLP) in the Compressor outside. On the other hand, because the Compressor consists of 1/1000mm processing precision components and is sealed after producing without dust or humidit

• LG GN-332, 4-3 OLP (OVERLOAD PROTECTOR) 4-3-1 Definition of OLP (1) OLP (OVERLOAD PROTECTOR) is attached to the Compressor and protects the Motor by cutting the current to the Motor if the temperature rises and activates the bimetal spring in the OLP. (2) When over-voltage flows to Compressor motor, the Bimetal works by heating the heater inside the OLP, and the OLP protects Motor by cutting off current which flows to the Compressor Motor. 4-3-2 Role of the OLP (1) The OLP is attached to the Hermetic Compressor used for the Refrigerator and Sho

• 6-1 COMPRESSOR AND ELECTRIC COMPONENTS 6. TROUBLESHOOTING - 12 - 1 2 3 4 5 2 5 5 3 5 4 5 5 1 43 YES YES YES YES NO NO YES YES YES NO NO NO Power Source. Remove the PTC-Starter from the Compressor and measure the voltage between Terminal C of Compressor and Terminals 5 or 6 of PTC. No Voltage. (Rating Voltage ±10%)? Replace OLP. Reconnect. Replace PTC-Starter. Replace OLP. O.K.

• LG GN-332, 6-2 PTC AND OLP - 13 - 65 3 4 YES NO NO YES NO Cam Shaft Normal operation of Compressor is impossible or poor. Separate the PTC from Compressor and measure the resistance between No. 5 and 6 (only RSIR Type) or No. 4 and 5 of PTC with a Tester or Whistone Bridge. (Figure 22) Separate the OLP from Compressor and check resistance value between two terminals of OLP with a Tester. (Figure 23) Observation value is 220V/50Hz : 22 Ω ±30% 115V/60Hz : 6.8 Ω ±30% 240V/50Hz : 33 Ω ±30% 127, 220V/60Hz : 22 Ω ±

• LG GN-332, 6-4 ANOTHER ELECTRIC COMPONENTS ▼ Cooling is impossible - 14 - Compressor doesn't run. Running state of Compressor is poor. Check a starting voltage. Check if current flows to the following components. a. Thermostat b. Starting devices c. OLP d. Compressor coil e. Defrost Timer f. Circuit parts Low voltage. Poor contacting and gas leakage. Shorted or broken. Poor contacting or shorted. Coil shorted. Poor contacting or shorted. Poor contacting and broken. Shorted. Lack of capacity. Coil of Motor Compressor. Replace the compressor. Replace each component. Raise the voltage. Replace each component. Cause Check if current flows

• 6-5 SERVICE DIAGNOSIS CHART - 15 - ● In addition to the items described above, refer to the followings to solve the complaint. Check if dew forms in the Freezer. Replace the Components of defrosting circuit. Check Refrigerating Cycle. Check the Thermostat. Defrosting is poor. The cycle is faulty. Repair the cycle. Replace the Thermostat. The operation of the Thermostat is poor. COMP

• LG GN-332, 6-6 REFRIGERATING CYCLE ▼ Troubleshooting Chart - 16 - ▼ Leakage Detection Observe discharging point of refrigerant which may be in oil discharging part in compressor and hole of evaporator. YES YES Whether Compressor runs or not. Whether frost forms or not in Evaporator. Observe the discharging amount of Refrigerant. Inject Refrigerant to Compressor and check cooling operation. Clogged by dust. Gas leakage. Faulty Compressor. Moisture Clog. Whether oil leaks or not. Normal formed frost Normal amount No or much amount (Check the leakage point) Nor

• LG GN-332, ▼ General Control of Refrigerating Cycle - 17 - NO. ITEMS UNIT STANDARDS PURPOSES REMARKS Pipe and piping system opening time Welding N 2 sealed parts Refrige- ration Cycle Refrigerant weighing Drier replacement Leak check 1 2 3 4 5 6 7 Min. Nitrogen pressure Confirm N 2 leak Min. Torr EA EA EA EA Pipe: within 1 hour. Comp: within 10 minutes. Drier: within 20 minutes. Weld under Nitrogen atmosphere. (N 2 pressure: 0.1~0.2 kg/cm 2 ) Confirm air leaking sounds when removing rubber cap. Sound: usable No sound: not usable More than 40 minutes Below 0.03 (ref) High and low pressure sides are evacuated at the same time fo

• LG GN-332, - 33- The parts of refrigerator and the shape of each part are subject to change in different localities. Capacitors and fuse are optional parts. * : optional parts. 8. EXPLODED VIEW * * #EV# * * * * 411A 416A 304A 410C 501F 501A 501K 410A 103B 281D 103A 401A 282B 418A 125L 129A 406B 120B 120A 120E 120C 409B 409C 158C 158F 329D 106A 283B 106B 315A 109B 407A 103C 318A 105A 317A 307A 314A 309A 308A 329C 420A 312A 310A 327A 328A 328B 319A 315B 319C 315C 323B 281A 301A 281B 410B 410H 410J 410G * 604E 604F

• LG GN-332, - 19 - * * * * * * * * * * * * * * * #EV# 330B 405C 405A 404A 329A 332A 205A 205A 203A 200A 201A 243A 210A 241A 249A 233A 230A 231A 235A 241B 241C 151A 241D 154A 243A 149C 149C 149C 149C 149B 140A 212G 237A 110B 125A 131A 125J 149A 149A 149D 125H

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	LG GN-332 Service manual 11-01-2024 5	DOWNLOAD
	LG GN-332 Service manual 19-09-2022 6	DOWNLOAD

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