LG LW5012 Service Manual
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LG LW5012 Service Manual

LG LW5012 Service Manual

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Room Air Conditioner
SERVICE MANUAL
MODELS: LW501 2
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

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  • Page 1 website http://www.lgservice.com Room Air Conditioner SERVICE MANUAL MODELS: LW501 2 CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.

  • Page 2: Table Of Contents

    Air Conditioner Service Manual TABLE OF CONTENTS Safety Precautions............................3 Dimensions ..............................7 Outside Dimensions ...........................7 Product Specifications ..........................8 Installation ...............................9 Select the Best Location ...........................9 How to Install..............................9 Installation Kits Content(Some Models) ....................10 How to Secure the Drain Pipe ........................11 Operation ..............................12 Features ..............................12 Insulation Resistance Test........................12 About the Controls on the Air conditioner ....................12...

  • Page 3: Safety Precautions

    Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. WARNING This symbol indicates the possibility of death or serious injury.
  • Page 4 Safety Precautions Operation Plug in the power plug Do not operate or stop the Do not damage or use an properly. unit by inserting or pulling unspecified power cord. out the power plug. • Otherwise, it will cause • It will cause electric shock or •...
  • Page 5 Safety Precautions Close all doors, windows and other Ventilate before operating air conditioner when gas goes out. outside openings to the room. • It may cause explosion, fire,and burn. • The air conditioner must be operated in a enclosed area to be most effective. If water enters the product, turn off the Do not clean the air conditioner with power switch of the main body of...
  • Page 6 Safety Precautions Operation Be cautious not to touch Hold the plug by the head Unplug the air conditioner the sharp edges when when taking it out. if it will not be used for a installing. long period. • • It may cause injury. •...

  • Page 7: Dimensions

    Dimensions Dimensions Symbols Used in this Manual This symbol alerts you to the risk of electric shock. This symbol alerts you to hazards that could cause harm to the air conditioner. This symbol indicates special notes. NOTICE Outside Dimensions Model All Model Dimension mm(inch)

  • Page 8: Product Specifications

    Product Specifications Product Specifications MODELS LW5012 ITEMS COOLING CAPACITY (BTU/h) 5,000 ø, 115V, 60HZ INPUT (W) 249.5 g (8.8 Oz) REFRIGERANT CHARGE (R410A) • OVERLOAD PROTECTOR FOR COMPRESSOR PROTECTOR • INTERNAL PROTECTOR FOR FAN MOTOR SPECIFICATIONS ARE SUBJECT TO MINOR CHANGE WITHOUT NOTICE FOR FURTHER NOTICE IMPROVEMENT.

  • Page 9: Installation

    Installation Installation This air conditioner is designed with a button-down chassis so it can be easily installed in a window. Select the Best Location 1. To prevent vibration and noise, make sure the unit is installed securely and firmly. 2. Install the unit where the sun does not shine directly on INSIDE OUTSIDE the unit.

  • Page 10: Installation Kits Content(Some Models)

    Installation Installation Kits Contents(some Models) HARDWARE TYPE A: 14EA TYPE B: 2EA TYPE C: 2EA TYPE D: 3EA (SHORT SCREW) (WOOD SCREW) (WOOD SCREW) (L BACKET) TYPE E: 1EA TYPE F: 1EA TYPE G: 2EA TYPE H: 1EA (SEAL STRIP) (SASH SEAL) (GUIDE PANEL) (UPPER GUIDE)

  • Page 11: How To Secure The Drain Pipe

    Installation CAUTION: During the following step, hold unit firmly until window sash is lowered to top channel behind side panel frames. Personal injury or property damage may result if unit falls from window. 3. Install the Air Conditioner in the Window a.

  • Page 12: Operation

    Operation Operation Feature • DESIGNED FOR COOLING ONLY • POWERFUL AND INCREDIBLE COOLING • TOP-DOWN CHASSIS FOR THE SIMPLE INSTALLATION AND SERVICE • BUILT-IN ADJUSTABLE THERMOSTAT • WASHABLE ONE-TOUCH FILTER • COMPACT SIZE Insulation Resistance Test 1. Unplug the power cord and connect a jumper between 2 pins (black and white). 2.

  • Page 13: Disassembly

    Disassembly Disassembly Mechanical Parts 1. FRONT GRILLE 1. Disconnect the unit from source of power. 2. Using a screwdriver, remove the screw from the front grille. (See Figure 13) 3. Push the front grille up from the bottom. Pull the top of the front grille away from the cabinet as the top tabs lift out of their slots.

  • Page 14: Air Handling Parts

    Disassembly Air Handling Parts 4. AIR GUIDE UPPER 1. Disconnect the unit from the power source. 2. Remove the front grille. (Refer to Section 1) 3. Remove the cabinet. (Refer to Section 2) 4. Remove the control board. (Refer to Section 3) 5.

  • Page 15: Electrical Parts

    Disassembly 6. MOTOR 1. Disconnect the unit from the power source. 2. Remove the front grille. (Refer to Section 1) 3. Remove the cabinet. (Refer to Section 2) 4. Remove the control panel. (Refer to Section 3) 5. Remove the air guide upper. (Refer to Section 4) 6.

  • Page 16: Refrigerating Cycle

    Disassembly 10. CAPACITOR 1. Remove the cabinet. (Refer to Section 2) Figure 26 2. Remove the control panel. (Refer to Section 3) 3. Discharge the capacitor by placing a 20 KΩ resistor across the capacitor terminals. 4. Remove all the leads of capacitor terminals. 5.
  • Page 17 Disassembly slowly with the two full turns 15. EVAPORATOR counter-clockwise. This will keep oil 1. Remove the cabinet. (Refer to Section 2) from foaming and being drawn into 2. Discharge the refrigerant by using a refrigerant recovery system. the vacuum pump. 3.
  • Page 18 Disassembly Equipment needed: Vacuum pump, charging cylinder, manifold gauge, brazing equipment, pinch-off tool capable of making a vapor proof seal, leak detector, tubing cutter, hand tools to remove components and service valve. COMPOUND GAUGE MANIFOLD GAUGE CONDENSER SEE INSETS (HIGH PRESSURE SIDE) BELOW COMPRESSOR EVAPORATOR...

  • Page 19: Schematic Diagram

    Schematic Diagram Schematic Diagram Wiring Diagram • MODEL: HBLG5004, HBLG5004T4 SWITCH(1) POWER INPUT WH(BL) (Ribbed) GN/YL (GL) SWITCH(2) GN/YL MOTOR (GL) OR(BR) CAPACITOR OR(BR) COMP THERMOSTAR REF. NO DESCRIPTION & NAME Q'TY POWER CORD ASSY FAN MOTOR COMPRESSOR ROCKER SWITCH-1 ROCKER SWITCH-2 THERMOSTAT CAPACITOR...

  • Page 20: Troubleshooting Guide

    Troubleshooting Guide Troubleshooting Guide Piping System CONDENSER COILS MOTOR CAPILLARY TUBE TURBO FAN EVAPORATOR COILS Following is a brief description of the important components and their function in what is called the refrigeration system. Reference should be made to Figure 32 to follow the refrigerating cycle and the flow of the refrigerant in the cooling cycle.

  • Page 21: Troubleshooting Guide

    Troubleshooting Guide Troubleshooting Guide In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused by an electrical defect. The other is Ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit is running but cooling is ineffective.
  • Page 22 Troubleshooting Guide Fails to Start Check of circuit breaker Check of power source. and fuse. Check of control switch Gas leakage of feeler setting. bulb of thermostat. Check control switch. Compressor fails only to Fan only fails to start. start. Improper wiring.

  • Page 23: Room Air Conditioner Voltage Limits

    Troubleshooting Guide Room Air Conditioner Voltage Limits NAME PLATE RATING MINIMUM MAXIMUM 115V ± 10% 103.5V 126.5V COMPLAINT CAUSE REMEDY Fan motor will not run. No power Check voltage at outlet. Correct if none. Power supply cord Check voltage to rotary switch. If none, check power supply cord.
  • Page 24 Troubleshooting Guide COMPLAINT CAUSE REMEDY Fan motor noise. Tubo Fan If cracked, out of balance, or partially missing, replace it. Axial Fan If cracked, out of balance, or partially missing, replace it. Loose set screw Tighten it. Worn bearings If knocking sounds continue when running or loose, replace the motor.
  • Page 25 Troubleshooting Guide COMPLAINT CAUSE REMEDY Compressor cycles on Fan motor If not running, determine the cause. Replace if overload. required. Condenser air flow Remove the cabinet, inspect the interior surface restriction of the condenser. If restricted, clean carefully with a vacuum cleaner (do not damage fins) or brush.

  • Page 26: Exploded View

    Exploded View Exploded View 264110 159830 149410 145200 238310 266002-2 266002-1 137215 731273 269310 147582-2 554030 147582-1 359011 148000 W0CZZ 135312 W48602 352380-1 346811 352115 W48602 249950 552113 349480 35211A 35211A 149980 354210 359012 352113 352380-2 130900 567502 130410 749740 554160 550140 26 Room Air Conditioner...

  • Page 27: Replacement Parts List

    February, 2005 P/No.: 3828A29003D Printed in China...

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