LG HBLG1803R Service Manual
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LG HBLG1803R Service Manual

LG HBLG1803R Service Manual

Lg air conditioner user manual
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LG Room
Air Conditioner

SERVICE MANUAL

MODELS: LW1800PR
LW1800ER
LW1800ERZ3
LW1500PR
LW1500PRY3
LWP1830WAL
LWP1820PDL
LWP1820PEL
LWC182PLMM0
LWC183PLMD1
LWC212PLMM0
LW1804ER
LW1800PRZ3
HBLG1803R
website http://www.lgservice.com
CAUTION
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.
LG

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  • Page 1: Service Manual

    LG Room Air Conditioner SERVICE MANUAL MODELS: LW1800PR LW1800ER LW1800ERZ3 LW1500PR LW1500PRY3 LWP1830WAL LWP1820PDL LWP1820PEL LWC182PLMM0 LWC183PLMD1 LWC212PLMM0 LW1804ER LW1800PRZ3 HBLG1803R website http://www.lgservice.com 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 ...5 Outside dimensions...5 Product Specifications ...6 Installation ...7 Select the Best Location ...7 Installation Check ...7 How to Secure the Drain Pipe ...7 How to Install...8 Suggested Tool Requirements ...9 Cabinet Installation...10...

  • Page 3: 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 Be sure the installation area does not deterio- rate with age. • If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and per- sonal injury. 4 Room Air Conditioner Do not install, remove, or re-install the unit by yourself(customer).

  • Page 5: 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 Dimension...

  • Page 6: Product Specifications

    1ø, 220V, 60Hz 1ø, 208/230V, 60Hz 18,000 24,000 17,500/18,000 1,890 2,440 1,620/1,670 11.5 10.8 8.0/7.5 19.4(WB)** 23.9(WB)** 765g(27oz) 2 ROW 19 STACKS, L-BENDED TYPE TURBO FAN 6 POLES THERMISTOR 115/52 X 16 X 26 660 X 428 X 680 HBLG1803R 9.0/8.3 9.7/9.7...

  • Page 7: Installation

    2. Connect to a single-outlet 15A circuit. (or 20A circuit for Electric Heater Model) 3. To avoid vibration or noise, make sure the air conditioner is installed securely. 4 Avoid placing furniture or draperies in front of the air inlet and outlet.

  • Page 8: How To Install

    Left frame curtain Window locking bracket Sill bracket (2) Type B (7) Type A (14) Top retainer bar is in product package. 8 Room Air Conditioner Foam strip (Plain-Back) Foam-PE (Adhesive-Backed) Support bracket(2) Type C (5) Type D (2) 29" to 41"...

  • Page 9: Suggested Tool Requirements

    Suggested tool Requirements SCREWDRIVER(+, -), RULER, KNIFE, HAMMER, PENCIL, LEVEL Preparation of Chassis 1. Remove the screws which fasten the cabinet at both sides and at the back. Keep these two screws which fasten the cabinet at both sides for later use. 2.

  • Page 10: Cabinet Installation

    Frame curtain is restricted. Attach the cabinet to the window stool by driving the screws (Type B) through the cabinet into window stool. 2. The cabinet should be installed with a very slight tilt downward toward the outside. 10 Room Air Conditioner Sill Bracket Carriage Bolt...
  • Page 11 Push the grille in until it snaps into place. (See Fig.14) 11. Lift the inlet grille and secure it with a screw (Type A) through the front grille. (See Fig. 14) 12. Window installation of room air conditioner is now completed. Figure 10 Screw...

  • Page 12: Operation

    Remote Control unit and the air conditioner. POWER BUTTON To turn the air conditioner ON, push the button. To turn the air conditioner OFF, push the button again. This button takes priority over any other buttons.
  • Page 13 FAN SPEED SELECTOR Every time you push this button, it is set as follows. COOL DRY HEAT DEFROST INDOOR DESIRED HIGH ON/OFF TIMER BUTTON You can set the time when the unit will turn on or turn off automatically by pressing the timer button. If the unit is operating, this button controls the time it will be turned off.
  • Page 14 Remote Control unit and the air conditioner. POWER BUTTON To turn the air conditioner ON, push the button. To turn the air conditioner OFF, push the button again. This button takes priority over any other buttons.
  • Page 15 LWP1820PDL/PEL DISPLAY POWER BUTTON Operation starts, when this button is pressed and stops when you press the button again. ROOM TEMPERATURE SETTING BUTTON Control the room temperature within a range of 16°C to 30°C. The room temperature will be adjusted by 1˚C 30min., and by 2˚C 1 hour later.

  • Page 16: Disassembly

    14. Re-install the components by referring to the removal procedure, above. (Refer to the wiring diagram found on page 25 in this manual and on the control box.) 16 Room Air Conditioner Figure 15 TI M W ER Figure 16...

  • Page 17: Air Handling Parts

    Air Handling Parts 4. Air Guide and Turbo Fan 1. Remove the front grille. (Refer to section 1) 2. Remove the cabinet. (Refer to section 2) 3. Remove the control box. (Refer to section 3) 4. Remove the 4 screws that fasten the brace. 5.

  • Page 18: Electrical Parts

    5. Remove the 3 nuts and the 3 washers which fasten the compressor. 6. Remove the compressor. (See Figure 24) 7. Re-install the components by referring to the removal procedure, above. 18 Room Air Conditioner Figure 22 Figure 23 Figure 24...
  • Page 19 9. Capacitor 1. Remove the control box. (Refer to section 3) 2. Open the top cover from the control box. (See Figure 25) 3. Pull out the capacitor from the control box. 4. Disconnect all the leads of capacitor terminals. 5.

  • Page 20: Refrigerating Cycle

    5. After discharging the refrigerant completely, unbraze the interconnecting tube at the evapo- rator connections. 6. Remove the evaporator. 7. Re-install the components by referring to notes. (See Figure 29) 20 Room Air Conditioner Recovery Figure 27 Figure 28 Figure 29...

  • Page 21: Capillary Tube

    14. Capillary Tube 1. Remove the cabinet. (Refer to section s2) 2. After discharging the refrigerant completely, unbraze the interconnecting tube at the capillary tube.(See caution above) NOTICE — Replacement of the refrigeration cycle. 1. When replacing the refrigeration cycle, be sure to Discharge the refrigerant system using a Freon recovery System.
  • Page 22 Disassembly Equipment needed: Vacuum pump, Charging cylinder, Manifold gauge, Brazing equipment. Pin-off tool capable of making a vapor-proof seal, Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 30B-Charging Figure 30A-Pulling Vacuum 22 Room Air Conditioner...

  • Page 23: Schematic Diagram

    Schematic Diagram Electronic Control Device SEG-d TEST SEG-e /Reset SEG-f SEG-g VAref KEY0 Room KEY1 Pipe out0 Option1 out1 Option2 out2 Service Manual 23...
  • Page 24 24 Room Air Conditioner SEG-d TEST SEG-e /Reset SEG-f SEG-g SLIDE VAref KEY0 Room KEY1 Pipe out0 Option1 out1 Option2 out2...

  • Page 25: Wiring Diagram

    3854AR3563U MODEL : LWC182PLMM0/LWC212PLMM0 LOCATION NO. DESCRIPTION MOTOR ASSY CAPACITOR COMPRESSOR OVERLOAD PROTECTOR DC PCB ASSEMBLY AC PCB ASSEMBLY THERMISTOR PLASMA FILTER ASSY MODEL : LW1800ERZ3/LW1800PR, HBLG1803R CN-AC/DC DC PCB ASSEMBLY CN-TH1 ROOM THERMISTOR PIPE THERMISTOR REVERSING VALVE SWITCH DC12V H.V.

  • Page 26: Components Location

    RY-LOW RY-MED 2. Display P.C.B Assembly MODEL: LW1800PR/LW1500PR LWP1830WAL CN-AC/DC R01G R02G R03G R04G R05G R06G R07G R08G R09G R10G OSC01B 26 Room Air Conditioner MODEL: LWC182PLMM0/LWC212PLMM0 CN-AC/DC CN-12V CN-CON Q02T D01T C02T RY-HI MODEL: LWC182PLMM0/LWC212PLMM0 IC03G LW1500PRY3/LW1800PRZ3 HBLG1803R LW1800ERZ3/HBLG1803R...
  • Page 27 Schematic Diagram MODEL: LW1800ER/LWP1820PDL/LWP1820PEL MODEL: LW1804ER/LW1500PRY3/LW1800PRZ3/LWC183PLMD1 Service Manual 27...

  • Page 28: Troubleshooting Guide

    This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle. EVAPORATOR COILS COMPLETE LIQUID BOIL OFF POINT COOLED ROOM AIR HEAT LOAD LIQUID PRESSURE DROP 28 Room Air Conditioner ROOM AIR CONITIONER CYCLE OF REFRIGERATION SUCTION LINE COOL LOW PRESSURE VAPOR OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH MOTOR...

  • Page 29: Troubleshooting Guide

    Troubleshooting Guide In general, possible trouble is classified in two kinds. The one is called Starting Failure which is caused from an electrical defect, and the other is ineffective Air Conditioning caused by a defect in the refrigeration circuit and improper application. Unit runs but poor cooling.
  • Page 30 Capacitor check. Replacement Irregular motor resistance ( Irregular motor insulation ( Replacement of compressor (Motor damaged) 30 Room Air Conditioner Fails to Start Improper thermostat setting. Loose terminal connection. Improper wiring. Check circuit breaker and fuse. Gas leakage of feeler bulb of thermostat Check of control switch.

  • Page 31: Electrical Parts Troubleshooting Guide

    Electrical Parts Troubleshooting Guide Possible Trouble 1 The unit does not operate. Is the Trans input power AC 115V? (208/230V for LWL1230WAL) Is the Trans output power about AC 14V? Is output Voltage of IC01D DC 12V? Is output Voltage of IC02D DC 5V? Is the reset circuit OK? (The No.14 of...
  • Page 32 • Wait 3 Minutes. • Check the wiring Diagram. • Replace MAIN PCB Ass'y. Possible Trouble 3 The compressor always operate. • Connect LEAD Wire to Is the wire connection of RY-COMP again. RY-COMP OK? • Check the RY-COMP. 32 Room Air Conditioner...
  • Page 33 Possible Trouble 4 FAN does not operate. Is the voltage NO.1 or 2 or 4 of IC01M DC 12V? Is the voltage NO.16 or 15 or 13 of IC01M 0V? • Check the RY-Hi or RY-Med or RY-Lo. • Check the wiring diagram. Possible Trouble 5 The function of Energy Saver does not operate.
  • Page 34 (Q01G, Q02G, Q03G for Delux Model) operate normally on DC PCB Ass'y? • Replace the DC PCB Ass'y. 34 Room Air Conditioner • Replace the battery. • Check the PCB pattern. • Connect connector to CN-AC/DC exactly. • Replace IC01G.

  • Page 35: Electric Parts

    ElectrIc Parts Possible Trouble 1 The unit does not operate. Is the Trans input power AC 115V? (208/230V for LWL1230WAL) Is the Trans output power about AC 14V? Is output Voltage of IC01D DC 12V? Is output Voltage of IC02D DC 5V? Is the reset circuit OK? (The No.14 of Micom is 5V.)
  • Page 36 • Wait 3 Minutes. • Check the wiring Diagram. • Replace AC PCB Ass'y. Possible Trouble 3 The compressor always operate. • Connect LEAD Wire to Is the wire connection of RY-COMP again. RY-COMP OK? • Check the RY-COMP. 36 Room Air Conditioner...
  • Page 37 Possible Trouble 4 FAN does not operate. Is the voltage NO.1 or 2 or 4 of IC01M DC 5V? Is the voltage NO.16 or 15 or 13 of IC01M 0V? • Check the RY-Hi or RY-Med or RY-Lo. • Check the wiring diagram. Possible Trouble 5 Remote controller does not operate.
  • Page 38 Are the IC01G and IC02G good? Is the connection of CN-AC/DC OK? Does IC03G operate normally on AC PCB Ass'y? • Replace the DC PCB Ass'y. 38 Room Air Conditioner • Replace IC01G, IC02G. • Connect connector to CN-AC/DC exactly. • Replace IC03G.
  • Page 39 COMPLAINT Fan motor will not run. No power Power supply cord Wire disconnected or con- nection loose Capacitor (Discharge capacitor before testing.) Will not rotate Fan motor runs Revolves on overload. intermittently Fan motor noise. Turbo Loose clamper Worn bearings Compressor will not run, Voltage but fan motor runs.
  • Page 40 Unit undersized Turbo or fan Excessive noise Copper tubing 40 Room Air Conditioner CAUSE Check the TEMP control. If not at the lowest number, set TEMP control to this setting and restart the unit. Check the continuity of the thermistor. Replace the thermistor if the circuit is open.

  • Page 41: Exploded View

    Exploded View COOLING MODEL 130910 152312 354210 267110 147582-1 147581 147582-2 152302 135303 268712 D ES 238310 A IR FI ER R ES 263230 T IM e rg S av D ry M ED HI GH T im ˚C T IM 237200 148000 346811...
  • Page 42 147582-1 147581 147582-2 152302 135303 268712 D ES 238310 A IR R YF IE R R ES 263230 T IM 237200 42 Room Air Conditioner 267110 148000 346811 359012 W48602 349480 349600 349001 352390-2 135312 130410 268714 W0CZZ 135500 554031...

  • Page 43: Replacement Parts List

    Replacement Parts List LOCATION DESCRIPTION 130410 BASE ASSEMBLY,WELD[SINGLE] 130910 CABINET ASSEMBLY,SINGLE 135303 GRILLE,INLET 135312 GRILLE ASSEMBLY,FRONT(SINGLE) 147581 LOUVER,HORIZONTAL 147582-1 LOUVER,VERTICAL 147582-2 LOUVER,VERTICAL 148000 BRACE 149980 SHROUD 152302 FILTER ASSEMBLY,AIR CLEANER 159830 AIR CLEANER ASSEMBLY 237200 PANEL,CONTROL 238310 ESCUTCHEON 249950 CONTROL BOX ASSEMBLY,SINGLE 263230 THERMISTOR ASSEMBLY 264110...
  • Page 44 CONDENSER ASS'Y 554160 COMPRESSOR SET 559010 FAN ASSEMBLY, AXIAL 567502 OVERLOAD PROTECTOR W0CZZ CAPACITOR, DRAWING W48602 CLAMP, SPRING 267110 REMOTE CONTROLLER ASSEMBLY 44 Room Air Conditioner PART NO. LWP1820PDL LWC182PLMM0 LWC212PLMM0 3041A20023B 3041A20023B 3091AR6057H 3091AR6057H 3530A10080A 3530A10080A 3531A20095A 3531A20095D 3550A30122A...
  • Page 45 LOCATION DESCRIPTION 130410 BASE ASSEMBLY, WELD[SINGLE] 130910 CABINET ASSEMBLY, SINGLE 135303 GRILLE, INLET 135312 GRILLE ASSEMBLY, FRONT(SINGLE) 135500 COVER, CONTROL BOX 146812 MOTOR ASSEMBLY,SYNC. 147581 LOUVER, HORIZONTAL 147582-1 LOUVER, VERTICAL 147582-2 LOUVER, VERTICAL 148000 BRACE 149980 SHROUD 152302 FILTER ASSEMBLY,AIR CLEANER 152312 FILTER ASSEMBLY, AIR CLEANER 237200...
  • Page 46 550140 ANTI-VIBRATION BUSH 554031 CONDENSER ASS'Y 554160 COMPRESSOR 559010 359012 TURBO FAN W48602 CLAMP, SPRING W0CZZ CAPACITOR 267110 REMOTE CONTROLLER 46 Room Air Conditioner PART NO. LW1800PR LW1800ER LW1500PR 3041A20023B 3091AR6057E 3531A20095A 3530A10080A 3550A30122A 4758A30022A 4758A30023A 4758A30023B 4800A20001A 4998A10013A 5231A20008A...
  • Page 47 LOCATION DESCRIPTION 130410 BASE ASSEMBLY, WELD[SINGLE] 130910 CABINET ASSEMBLY, SINGLE 135303 GRILLE, INLET 135312 GRILLE ASSEMBLY, FRONT(SINGLE) 135500 COVER, CONTROL BOX 147581 LOUVER, HORIZONTAL 147582-1 LOUVER, VERTICAL 147582-2 LOUVER, VERTICAL 148000 BRACE 149980 SHROUD 152312 FILTER ASSEMBLY, AIR CLEANER 237200 PANEL, CONTROL 238310 ESCUTCHEON...
  • Page 48 552101 TUBE,CAPILLARY 552111 TUBE ASSEMBLY,CAPILLARY 554031 CONDENSER ASSEMBLY,BENT 554160 COMPRESSOR SET 559010 FAN ASSEMBLY,AXIAL 567502 O.L.P W0CZZ CAPACITOR,DRAWING W48602 CLAMP,SPRING 48 Room Air Conditioner PART NO. LW1804ER LWC183PLMDI 3041A20023D 3041A20023D 3091AR6057E 3091AR6057E 3530A10080A 3530A10080A 3531A20095A 3531A20095A 3550A20089A 3550A30122A 4758A30022A 4758A30022A...
  • Page 49 LOCATION DESCRIPTION 130410 BASE ASSEMBLY,WELD[SINGLE] 130910 CABINET ASSEMBLY,SINGLE 135303 GRILLE,INLET 135312 GRILLE ASSEMBLY,FRONT(SINGLE) 135500 COVER 147581 LOUVER,HORIZONTAL 147582-1 LOUVER,VERTICAL 147582-2 LOUVER,VERTICAL 148000 BRACE 149980 SHROUD 152302 FILTER ASSEMBLY,AIR CLEANER 237200 PANEL,CONTROL 238310 ESCUTCHEON 249950 CONTROL BOX ASSEMBLY,SINGLE 263230 THERMISTOR ASSEMBLY 264110 POWER CORD ASSEMBLY 267110...
  • Page 50 P/No.: 3828A20140E Printed in Korea...

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