LG LFCS22520S/LFNS22520S Refrigerators Service & Repair Manual

CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. REFRIGERATOR SERVICE MANUAL Models: LFCS22520* LFNS22520* Colors: Stainless (ST) Smooth Black (SB) Super White (SW)

CONTENTS SAFETY PRECAUTIONS ………………………………………………………………… ….. 1. Specifications ………………………………………………………………………… 2. Parts Identification ……………………………………………………………………......................... 3. Disassembly ………………………………………………………………………….................…….... 4. Adjustment ……………………………………………………………………..................…………….. 5. Circuit Diagram …………………………………………………………..................………………….. 6. PCB Picture ………………………………………………………...............…………………………… 7. Troubleshooting with error display ………………………................................………………….. 8. Troubleshooting without error display …………………..............................…………………….. 9. Reference ………………………………………………………………….............…………………….. 10. Component Testing Information …………………………………….............................…………. 11. Troubleshooting …………………………………………………....................……………………… 12. Ice Maker and Dispenser working principles and repair …................................…………….. 13. Description of function & Circuit Micom ………………………..............................……………. …………… ……………….... Removing and Replacing the refrigerator door ………………………….................................. Door ………………………………………………………………………………………………….. Door Alignment ………………………………………………………………………........……….. Fan and Fan Motor (Evaporator) ………………………………………………................……… Defrost Control Assembly ………………………………………………………………................ Lamp …………………………………………………………………………………………….…… Multi Duct ………………………………………………………………………………….....……… Main PWB …………………………………………………………………………………....……… How to remove and reinstall the pullout drawer ………………………..............................…… Pull out drawer ……………………………………………………………........…………………… Cover Assembly T/V ............................................................................................................... Compressor ……………………………………………………………….....……………………… Introduction of e-linear compressor …………………………………….....................………….. 2 3-4 5 6-11 6 6 7 7 7 8 8 8 9-10 11 11 12 12 12 13 14-15 16-25 26-31 32-35 36-39 40-51 52-51 56-60 SAFETY PRECAUTIONS Please read the following instructions before servicing your refrigerator. 1. Unplug the power before handling any electrical components. 2. Check the rated current, voltage, and capacity. 3. Take caution not to get water near any electrical components. 4. Use exact replacement parts. 5. Remove any objects from the top prior to tilting the product. 2

1. SPECIFICATIONS LFCS22520B LFCS22520S LFCS22520W Western Black Stainless Super White PCM Stainless PCM Refrigerant R134a SPECIFICATIONS MODELS GENERAL FEATURES Color Dimensions (W*D*H) (32 3/4 x 35 1/2 x 68 1/2) in Net Weight 237.4 Lb Capacity 22cuft Climate class Temperate (N) Rated Rating 115V~ / 60Hz Cooling System Fan Cooling Condenser Aluminum Condenser Temperature Control MICOM control Defrosting System Full Automatic Heater Defrost Insulation Polyurethan Compressor FLA075LANA Evaporator Fin Tube Type Lubricanting Oil Polyol Ester (POE) RL-7H/7 cst 220 ± 10 cc Drier MOLECULAR SIEVE XH-7 Capillary Tube ID Ø0.75 First Defrost 4 Hours Defrost Cycle 7 - 40 Hours Desfrosting Device Heater, Sheath Shelf 2Fix(full) Anti-freezing Heater Water Tank Heater REFRIGERA TOR Case Material Embo (normal) Door Material Handle Type Vista-Handle(Al) Basket, Quantity 6 Full + 2 Small Cover, T/V Optibin Crisper + Humidity Control Lamp High Brightness LED Tray meat No Tray Egg No Tray Vegetable Yes (2) Pantry Yes FREEZER Basket, Quantity No Lamp LED (Capsule) Shelf No Ice Maker Tray Drawer (F/C) No Tray Drawer (F/L) Yes (plastic) Twisting Ice Tray & Bank Ice Bin Tray Drawer (F/U) Yes (Full Width) 3

1. SPECIFICATIONS 3 LFNS22520S Stainless (32 3/4 x 35 1/2 x 68 1/2) in 252.9 Lb 22cuft R134a Temperate (N) 115V~ / 60Hz Fan Cooling MICOM control Full Automatic Heater Defrost Polyurethan FLA075LANA Fin Tube Type Aluminum Condenser Polyol Ester (POE) RL-7H/7 cst 220 ± 10 cc MOLECULAR SIEVE XH-7 ID Ø0.75 4 Hours 7 - 40 Hours Heater, Sheath Water Tank Heater Embo (normal) Stainless Vista-Handle(Al) 6 Full + 2 Small Optibin Crisper + Humidity Control High Brightness LED 2Fix(full) No No Yes (2) Yes No LED (Capsule) No Install/ Ready Ice Bin Yes (Full Width) No Yes (plastic) Tray Drawer (F/C) Tray Drawer (F/L) Ice Tray & Bank Tray Drawer (F/U) Pantry FREEZER Basket, Quantity Lamp Shelf Ice Maker Tray meat Tray Egg Tray Vegetable Cover, T/V Lamp Shelf Anti-freezing Heater REFRIGERA TOR Case Material Door Material Handle Type Basket, Quantity First Defrost Defrost Cycle Desfrosting Device Lubricanting Oil Drier Capillary Tube Compressor Evaporator Condenser Temperature Control Defrosting System Insulation Climate class Rated Rating Cooling System Capacity Refrigerant SPECIFICATIONS MODELS GENERAL FEATURES Color Dimensions (W*D*H) Net Weight

22cuft Depth with Handles A 35 1/2 Depth w/o Handles B 33 Depth w/o Doors C 29 Depth (Total with door open) D 44 3/4 Height to Top of Door Hinge E 68 1/2 Height to Top w/out Hinge F 67 1/4 Width G 29 3/4 Width (door open 90 deg. w/o handle) H 33 1/4 Width (door open 90 deg. with handle) I 38 1/4 Description 4

2. PARTS IDENTIFICATION Adjustable Refrigerator Shelf The shelves in your refrigerator are adjustable to meet your individual storage needs. (Half or full type) 5 Dairy Product Bin Used to preserve dairy products. (some models only) Modular Door Bins Interchangeable bins can be arranged to suit your storage needs. Auto Closing Hinge The refrigerator doors and freezer drawers close automatically when you push them slightly. (The door only closes automatically when it is open at an angle of less than 30°). Glide'N'Serve Used for large party trays, deli items and beverages. Durabase® and Durabase® Divider The Durabase is a storage space recommended for the preservation of large food items. The Durabase Divider is used to organize the Durabase area into sections. It can be adjusted from side to side to accommodate items of different sizes. Pullout Drawer Used for extra storage within the freezer compartment. Ice Bin Ice cubes are automatically produced. (Ice Maker installed only) Crisper Controls humidity and helps vegetables and fruit to stay crisp. **Replace the cover assembly imply as first step remove the door refrigerator. Fixed Door Bin Used to preserve chilled food or drinks. LED interior lamps The interior lamps light up the inside of the refrigerator.

3. DISASSEMBLY 3-1 REMOVING AND REPLACING REFRIGERATOR To remove and replace the refrigerator door: CAUTION: Before you begin, remove food and bins from the doors. • Open the door. Remove the top hinge cover screw (1) and screw (1) and lift up the cover(2). • Remove the cover. • Disconnect wire harnesses (3). • Remove the grounding screw (4). • Using 10mm or 13/32-inch socket wrench, remove the 3 bolts and lift off the Top Hinge(5). Set parts aside. : When removing the bolts, be careful that the door does not fall forward. • Lift the door from the middle hinge pin and remove the door. • Place the door, inside facing up, on a non-scratching surface. • Replace in the reverse order. IMPORTANT • Mullion Removal 1. Remove 2 screws. 2. Lift mullion up carefully. 3. Disconnect wire harness. • Door Gasket Removal • Door Gasket Replacement • Mullion Replacement 1. Remove gasket. Pull gasket free from gasket channel of the four remaining sides of door. 1. Insert gasket into channel Press gasket into channels on the four remaining sides of door. 1. Connect wire harness. 2. Insert mullion into channel. Inserting mullion assy’ into bracket, door. 3. Assemble 2 screws. DOOR To remove the right refrigerator door: • Open the door. Remove the top hinge cover screw (1) and screw (1) and lift up the cover(2). • Remove the cover. • Disconnect wire harnesses (3). • Remove the grounding screw (4). • Using 10mm or 13/32-inch socket wrench, remove the 3 bolts and lift off the Top Hinge(5). Set parts aside. : When removing the bolts, be careful that the door does not fall forward. • Lift the door from the middle hinge pin and remove the door. • Place the door, inside facing up, on a non-scratching surface. • Replace in the reverse order. IMPORTANT 3-2 DOOR 6

• Mullion Replacement 3-3 DOOR ALIGNMENT 1. Connect wire harness. 2. Insert mullion into channel. Inserting mullion assy’ into bracket, door. 3. Assemble 2 screws. <24cu.ft> If the space between your doors is uneven, follow the instructions below to align the doors: Turn the leveling legs (CCW) to raise or (CW) to lower the height of the front of the refrigerator by using flat blade screw driver or 11/32" wrench. Use the wrench (Included with the User Manual) to adjust the bolt in the door hinge to adjust the height. (CCW to raise or CW to lower the height). <22cu.ft> If the space between your doors is uneven, follow the instructions below to align the doors With one hand, lift up the door that you would like to raise at the middle hinge. With your other hand, use pliers to insert snap ring as shown. Insert additional snap rings until the doors are aligned. (Three snap rings are provided with the refrigerator in the Use & Care Guide packet). 1. Remove the freezer drawer. (If your refrigerator has an icemaker, remove the icemaker first). 2. Remove the grille by pulling the grille forward. 3. Remove the Fan Motor assembly by loosening 3 screws and disassembling the shroud. 4. Pull out the fan and separate the Fan Motor and Bracket. Defrost Control assembly consists of Defrost Sensor and FUSE-M. The Defrost Sensor works to defrost automatically. It is attached to the metal side of the Evaporator and senses its temperature. At 46F(8°C), it turns the Defrost Heater off. Fuse-M is a safety device for preventing over-heating of the Heater when defrosting. 1. Pull out the grille assembly. (Figure 1) 2. Separate the connector with the Defrost Control assembly and replace the Defrost Control assembly after cutting the Tie Wrap. (Figure 2) 3-4 FAN AND FAN MOTOR(EVAPORATOR) 3-5 DEFROST CONTROL ASSEMBLY FAN MOTOR Shroud Figure 1 Figure 2 GRILLE ASSEMBLY DEFROST-CONTROL ASSEMBLY 7

3-6 LAMP 3-6-1 Refrigerator Compartment Lamp 3-6-2 Freezer Compartment Lamp 3-7 MULTI DUCT Unplug Refrigerator, or disconnect power at the circuit breaker. If necessary, remove top shelf or shelves. 1) Unplug refrigerator power cord from electric outlet. 2) Put flat screwdriver into service hole and remove cover of refrigerator light. 3) Remove the LED assembly from connector. 4) Replace the LED assembly. 1. Unplug refrigerator power cord form outlet. 2. Remove screw with driver. 3. Grasp the cover Lamp, pull the cover downward. 1. Remove the upper and lower caps by using a flat screwdriver, and remove 2 screws. (Figure 3) 2. Disconnect the lead wire on the bottom position. 3-8 MAIN PWB 1) Loosen 3 screws on the PWB cover. 2) Remove the PWB cover. 3) Disconnect wire harness and replace the main PWB in the reverse order of removal. Figure 3 8

3-9 HOW TO REMOVE AND REINSTALL THE PULLOUT DRAWER Step 1) Open the freezer door. Step 3) Remove the two screws from the guide rails (one from each side). Step 2) Remove the lower basket. Step 4) Lift the freezer door up to unhook it from the rail support and remove. Pull both rails to full extension. Step 5) First: Remove the gear from the left side first by releasing the tab behind the gear, place a screwdriver between the gear and the tab and pull up on the gear. Second: Remove the center rail. Third: Remove the gear from the right side by following the same steps for the left side. NOTE: THIS TAB MUST BE PUSHED IN TO RELEASE THE GEAR. 9

LG LFCS22520S/LFNS22520S Refrigerators Service & Repair Manual

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