LG HBLG1803R Service Manual
LG HBLG1803R Manual
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- LG HBLG1803R | Service Manual - Page 1
website http://www.lgservice.com LG LG Room Air Conditioner SERVICE MANUAL MODELS: LW1800PR LW1800ER LW1800ERZ3 LW1500PR LW1500PRY3 LWP1830WAL LWP1820PDL LWP1820PEL LWC182PLMM0 LWC183PLMD1 LWC212PLMM0 LW1804ER LW1800PRZ3 HBLG1803R CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN - LG HBLG1803R | Service Manual - Page 2
...23 Electronic Control Device ...23 Wiring Diagram...25 Components Location ...26 Troubleshooting Guide ...28 Piping System ...28 Troubleshooting Guide ...29 Electrical Parts Troubleshooting Guide ...31 Electric Parts ...35 Exploded View ...41 Replacement Parts List ...43 2 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 3
. Be sure not to do. Be sure to follow the instruction. s Installation WARNING Do not use damaged power cord plugs, or a loose socket. Always use the power plug and socket with the ground terminal. • There is risk of fire or electric shock. • There is risk of electric shock. Service Manual 3 - LG HBLG1803R | Service Manual - Page 4
shock, explosion, or injury. Be cautious when unpacking and installing the product. Do not store or use flammable gas or combustibles near the air conditioner. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator. Sharp edges - LG HBLG1803R | Service Manual - Page 5
to hazards that could cause harm to the air conditioner. NOTICE This symbol indicates special notes. Dimensions Outside Dimensions D W Cool Energy Saver F1 LOW 'F F2 MED F3 HIGH Fan Dry Timer TEMP MODE TIMER FAN SPEED POWER H Dimension W H D Model mm(inch) mm(inch) mm(inch) ALL - LG HBLG1803R | Service Manual - Page 6
Specifications ITEMS POWER SUPPLY MODELS LW1800PR LW1800ER LW1800ERZ3 LWP1830WAL LW1500PR LW1500PRY3 LWP1820PDL LWP1820PEL LWC182PLMM0 LWC212PLMM0 LW1804ER LWC183PLMD1 HBLG1803R 23.9(WB)** REFRIGERANT (R-22) specification may be changed for improving performance. 6 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 7
(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. How to Secure the hole of the unit) to fit drain pan to your own unit. Service Manual 7 - LG HBLG1803R | Service Manual - Page 8
(Plain-Back) Foam-PE (Adhesive-Backed) Left frame curtain Drain pipe Window locking bracket Sill bracket(2) Support bracket(2) Right frame curtain Type A (14) Type B (7) Type C (5) Type D (2) Carriage Bolt (2) Lock Nut (4) s Top retainer bar is in product package. 8 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 9
cabinet. Figure 3 7. Insert the Frame Curtain into the Top retainer bar and Frame guides. Foam-Seal Figure 4 8. Fasten the curtains to the unit with 10 screws (Type A) at both sides. Top retainer bar Top retainer bar Foam-PE Screw (Type A) Frame guide Figure 5 Screw (Type A) Service Manual 9 - LG HBLG1803R | Service Manual - Page 10
should be installed with a very slight tilt downward toward the outside. 10 Room Air Conditioner Sill Bracket Carriage Bolt (M-Screw) Figure 5 Cabinet Track hole Support Bracket Carriage bolt and lock nut Figure 6 Support Bracket Lock nut Machine screw (Type D) and lock nut Outer edge of window - LG HBLG1803R | Service Manual - Page 11
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 14 Installation Screw(Type C) Power Cord Screw (Type A) Foam-Strip Window locking bracket TEMP TIME SPFAENED MODE POWER Service Manual 11 - LG HBLG1803R | Service Manual - Page 12
for the simple instal- lation and service. • Low air-intake, top cooled-air discharge. • Built-in adjustable air conditioner or if there are obstacles between the Remote Control unit and the air conditioner. POWER BUTTON To turn the air conditioner ON, push the button. To turn the air conditioner - LG HBLG1803R | Service Manual - Page 13
the remote control. You can select the fan speed in three steps high, low or medium. Each time the button is pressed, the fan speed mode is shifted. • If you press the only Air Purifier button, only air by 2˚F in 30 minutes and by 4˚F in 1 hour to prevent overcooling during sleep. Service Manual 13 - LG HBLG1803R | Service Manual - Page 14
Mode 5 35 3 Auto Swing 7 1 LW1800ERZ3, HBLG1803R Cool Energy Saver Fan Dry Timer F1 LOW F2 MED F3 HIGH TEMP ˚F 6 2 3 5 4 1 Precaution: The Remote Control unit will not function properly if strong light strikes the sensor window of the air conditioner or if there are obstacles between - LG HBLG1803R | Service Manual - Page 15
s LWP1820PDL/PEL DISPLAY 6 4 5 3 2 6 Operation REMOTE CONTROL 1 2 1 4 5 3 7 4 5 1 3 2 button. FAN SPEED SELECTOR Select the fan speed. Cooling Model: 3 steps {High[F3] ➔ Low[F1] ➔ Med[F2]➔ High[F3]... } Heating Model: 2 steps {High [F2] ➔ Low[F1] ➔ the button again. Service Manual 15 - LG HBLG1803R | Service Manual - Page 16
disconnect the power cord. Mechanical Parts 1. Front Grille 1. Open the lnlet grille downward and remove the air filter. 2. Remove the screw to the wiring diagram found on page 25 in this manual and on the control box.) TEMP MODE Cool COOL 16 Room Air Conditioner Figure 15 Figure 16 Figure 157 - LG HBLG1803R | Service Manual - Page 17
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. Remove the brace. 6. Remove the 2 screws that fasten the air guide - LG HBLG1803R | Service Manual - Page 18
to the removal procedure, above. Electrical Parts 7. Overload Protector 1. Remove the cabinet to section 2) 2. Discharge the refrigerant system using a FreonTM Recovery System. . Leave the valve in place after servicing the system. 3. Remove the overload Air Conditioner Figure 22 Figure 23 Figure 24 - LG HBLG1803R | Service Manual - Page 19
cord means the cord which has the same specification marked on the supply cord attached at the unit.) TEMP MODE CoolCOOL FAN Ene DRY SFavrgery INDOOR FAN HEAT DEFROST Drayn Timer DESIRED PRFEFUFS3EN2A1RASHAEMULYVITIRGOETRFAEDOWHGIRREYTR TIMER SPFAENED ˚C POWER Figure 26 Service Manual 19 - LG HBLG1803R | Service Manual - Page 20
carefully. (Refer to section 4) 5. After discharging the refrigerant completely, unbraze the interconnecting tube at the evaporator connections. 6. Remove the evaporator. 7. Re-install the components by referring to notes. (See Figure 29) 20 Room Air Conditioner Figure 27 Figure 28 Figure 29 - LG HBLG1803R | Service Manual - Page 21
the refrigerant system using a FreonTM recovery System. If there is no valve to attach the recovery system, install one (such as a WATCO A-1) before venting the FreonTM. Leave the valve in place after servicing the for a while, and then test the leakage of the pinch-off connection. Service Manual 21 - LG HBLG1803R | Service Manual - Page 22
Tools to remove components, Service valve. CONDENSER (HIGH PRESSURE SIDE) COMPOUND GAUGE MANIFOLD GAUGE B A CAPILLARY TUBE SEE INSETS BELOW EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR A B EXTERNAL VACUUM PUMP Figure 30A-Pulling Vacuum 22 Room Air Conditioner LOW HI B A CHARGING CYLINDER - LG HBLG1803R | Service Manual - Page 23
Schematic Diagram Electronic Control Device Schematic Diagram Service Manual 23 - LG HBLG1803R | Service Manual - Page 24
Air Conditioner 11 CN-MOTOR YW396-09AV 11 33 55 77 99 CN-PWR YW396-03AV 33 11 Model Cool Only Heat Pump RY-4WAY RY-4WAY X O J07 CN-4WAY O X AC/DC 5V 51581-12(YEONHO) 52044-1245(MOLEX) ANGLE RY-COMP G4A-1A-E-LG ZNR01J SVC271D-14A SVC271D-14A FUSE 250V/T2A POWER TRANS 1 7 D02D D05D - LG HBLG1803R | Service Manual - Page 25
Schematic Diagram s MODEL : LW1800ERZ3/LW1800PR, HBLG1803R LW1800ER/LWP1830WAL 1 AIR FILTER ASSEMBLY 8 s MODEL : LW1500PRY3/LW1500PR LW1800PRZ3/LW1804ER LWC182PLMD1 1 5 7 2 6 3 4 8 Q'TY PER SET 1 1 1 1 1 1 1 1 S: Service Parts N: Non Service Parts REMARKS S S S S S S S S Service Manual - LG HBLG1803R | Service Manual - Page 26
C04D J2 QIC02DT RY-MED J3 RY-HI Q04T J6 D01T C02T J7 s MODEL: LWC182PLMM0/LWC212PLMM0 LW1500PRY3/LW1800PRZ3 HBLG1803R CN-TELE CN-TH2 POWER TRANS FUSE CN-PWR ZNR01J R01J E03J J8 E04J ZD01F SW03G POWER J24 26 Room Air Conditioner s MODEL: LWC182PLMM0/LWC212PLMM0 LW1800ERZ3/HBLG1803R - LG HBLG1803R | Service Manual - Page 27
s MODEL: LW1800ER/LWP1820PDL/LWP1820PEL Schematic Diagram s MODEL: LW1804ER/LW1500PRY3/LW1800PRZ3/LWC183PLMD1 Service Manual 27 - LG HBLG1803R | Service Manual - Page 28
OFF POINT SUCTION LINE COOL LOW PRESSURE VAPOR ROOM AIR HEAT LOAD CONDENSER COILS VAPOR INLET HOT DISCHARGED AIR LIQUID PRESSURE DROP 28 Room Air Conditioner MOTOR OUTSIDE COOLING AIR FOR REFRIGERANT PASS THROUGH COMPRESSOR OIL (LIQUID REFRIGERANT) CAPILLARY TUBE Figure 31 LIQUID OUTLET HIGH - LG HBLG1803R | Service Manual - 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. - LG HBLG1803R | Service Manual - Page 30
Troubleshooting Guide Fails to Start Check of power source. Check of control switch setting. motor resistance ( ) Irregular motor insulation ( ) Replacement of compressor (Motor damaged) 30 Room Air Conditioner Regular but fails to start. Replacement of compressor (locking of rotor, metal). - LG HBLG1803R | Service Manual - Page 31
Electrical Parts Troubleshooting Guide Troubleshooting Guide Possible Trouble 1 The unit does not operate. Is the Trans input power AC 115V? NO (208/230V for LWL1230WAL) • Check . NO Is the voltage No.18 of Micom DC 5V? YES Replace AC PCB Ass'y. • Check the PCB pattern. Service Manual 31 - LG HBLG1803R | Service Manual - Page 32
Troubleshooting Guide Possible Trouble 2 The compressor does not operate. Is setting Replace MAIN PCB Ass'y. Possible Trouble 3 The compressor always operate. Is the wire connection of NO RY-COMP OK? YES • Check the RY-COMP. • Connect LEAD Wire to RY-COMP again. 32 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 33
or RY-Lo. • Check the wiring diagram. Troubleshooting Guide • Replace IC01M. • Replace IC01M. Possible Trouble 5 The function of Energy Saver does not operate MANUAL. • Set the mode key to Energy Saver mode. • Check the Energy Saver mode key. • Check the pattern of AC & DC PCB. Service Manual 33 - LG HBLG1803R | Service Manual - Page 34
. Possible Trouble 7 It displays abnormally on DC PCB Ass'y. NO Is the IC01G good? YES NO Is the connection of NO CN-AC/DC OK? YES Does the IC03G (Q01G, Q02G, Q03G for Delux Model) NO operate normally on DC PCB Ass'y? YES • Replace the DC PCB Ass'y. 34 Room Air Conditioner • Replace - LG HBLG1803R | Service Manual - Page 35
ElectrIc Parts Troubleshooting Guide Possible Trouble 1 The unit does not operate. Is the Trans input power AC 115V? NO (208/230V for LWL1230WAL) • Check the Fuse connector exactly. NO Is the voltage No.40 of Micom DC 5V? YES Replace AC PCB Ass'y. • Check the PCB pattern. Service Manual 35 - LG HBLG1803R | Service Manual - Page 36
Troubleshooting Guide Possible Trouble 2 The compressor does not operate. Is desired Temp Replace AC PCB Ass'y. Possible Trouble 3 The compressor always operate. Is the wire connection of NO RY-COMP OK? YES • Check the RY-COMP. • Connect LEAD Wire to RY-COMP again. 36 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 37
wiring diagram. Possible Trouble 5 Remote controller does not operate. Is the voltage of Battery NO over 2.3V? YES Is the voltage No.10 NO of CN-AC/DC on AC PCB Ass'y DC 5V? YES Is the connection of NO CN-AC/DC OK? YES • Replace Receiver Ass'y. Troubleshooting Guide • Replace IC01M - LG HBLG1803R | Service Manual - Page 38
Troubleshooting Guide Possible Trouble 6 It displays abnormally on DC PCB Ass'y. NO Are the IC01G and IC02G good? YES NO Is the connection of NO 'y? YES • Replace the DC PCB Ass'y. • Replace IC01G, IC02G. • Connect connector to CN-AC/DC exactly. • Replace IC03G. 38 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 39
Troubleshooting Guide COMPLAINT Fan motor will not run. Fan motor runs intermittently Fan motor noise. Compressor will not run, but fan motor runs. If wires are off, refer to wiring diagram for identification, and replace. Check wire locations. If not per wiring diagram, correct. Service Manual 39 - LG HBLG1803R | Service Manual - Page 40
sized for the area to be cooled. Check the set screw or clamp. If loose or missing, correct. If the turbo or fan is hitting air guide, rearrange the air handling parts. Remove the cabinet carefully and rearrange tubing not to contact cabinet, compressor, shroud, and barrier. 40 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 41
Exploded View s COOLING MODEL 130910 Exploded View 267110 152312 354210 148000 346811 359012 W48602 349480 559010 149980 554031 W48602 349600 POWER 237200 263230 W0CZZ 135500 352390-1 567502 554160 249950 550140 W52106-1 352111 W52106-2 264110 35211A 352113 Service Manual 41 - LG HBLG1803R | Service Manual - Page 42
Exploded View s HEATING MODEL 130910 267110 148000 554031 149980 152312 354210 346811 359012 W48602 349480 349600 W48602 559010 147582-1 147581 147582-2 135500 352390-1 567502 554160 249950 550140 352115-1 552111 352115-2 264110 352113 35211A 566000 552202 42 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 43
REMOTE CONTROLLER ASSEMBLY PWB(PCB) ASSEMBLY,MAIN(DC) PWB(PCB) ASSEMBLY,MAIN(AC) DAMPER,VENTILATION ORIFICE MOUNT,MOTOR TUBE ASSEMBLY,DISCHARGE SINGLE TUBE ASSEMBLY,SUCTION(OUTDOOR) AIR GUIDE ASSEMBLY AIR GUIDE 3H02932C 5210A21099E 5210A21099F 2520UMKK2AA 4681A20011M REMARK Service Manual 43 - LG HBLG1803R | Service Manual - Page 44
AIR GUIDE ASSEMBLY EVAPORATOR ASSEMBLY, FIRST FAN ASSEMBLY, TURBO ISOLATOR, COMP TUBE,CAPILLARY TUBE ASSEMBLY, FORMED COND CONDENSER ASS'Y COMPRESSOR SET FAN ASSEMBLY, AXIAL OVERLOAD PROTECTOR CAPACITOR, DRAWING CLAMP, SPRING REMOTE PART 3H02932C R 6711A20034F 6711A20034F R 44 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 45
ASSEMBLY,SUCTION(OUTDOOR) AIR GUIDE ASSEMBLY 5239A20002A AIR GUIDE ASSEMBLY 5239A20003A EVAPORATOR SPRING 3H02932C REMOTE CONTROLLER ASSEMBLY - PART NO. LW1800ERZ3 R 2520UMKK2AA R 5901A20010A R - R - R 6750U-L016A R 6120AR2194F R 3H02932C R 6711A20034G R Service Manual 45 - LG HBLG1803R | Service Manual - Page 46
AIR GUIDE ASSEMBLY AIR GUIDE ASSEMBLY EVAPORATOR ASS'Y OVERLOAD PROTECTOR ANTI-VIBRATION BUSH CONDENSER ASS'Y COMPRESSOR FAN TURBO FAN CLAMP, SPRING CAPACITOR REMOTE CONTROLLER PART REMARK R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 46 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 47
REMOTE CONTROLLER ASSEMBLY PWB(PCB) ASSEMBLY, MAIN(DC) PWB(PCB) ASSEMBLY, MAIN(AC) MOTOR ASSEMBLY, SINGLE DAMPER, VENTILATION ORIFICE MOUNT, MOTOR TUBE ASSEMBLY,SUCTION(OUTDOOR) TUBE, CAPILLARY TUBE FORMED, EVAPORATOR TUBE FORMED, EVAPORATOR AIR GUIDE ASSEMBLY AIR GUIDE Parts List PART Service Manual - LG HBLG1803R | Service Manual - Page 48
REMOTE CONTROLLER ASSEMBLY PWB(PCB) ASSEMBLY,MAIN(DC) PWB(PCB) ASSEMBLY,MAIN(AC) MOTOR ASSEMBLY,SINGLE DAMPER,VENTILATION ORIFICE MOUNT,MOTOR TUBE ASSEMBLY,DISCHARGE SINGLE TUBE,EVAPORATOR TUBE,EVAPORATOR TUBE ASSEMBLY,SUCTION(OUTDOOR) AIR GUIDE ASSEMBLY AIR GUIDE REMARK 48 Room Air Conditioner - LG HBLG1803R | Service Manual - Page 49
REMOTE CONTROLLER ASSEMBLY PWB(PCB) ASSEMBLY,MAIN(AC) PWB(PCB) ASSEMBLY,MAIN(DC) MOTOR ASSEMBLY,SINGLE DAMPER,VENTILATION ORIFICE MOUNT,MOTOR TUBE,CAPILLARY BEND TUBE ASSEMBLY,DISCHARGE SINGLE AIR GUIDE ASSEMBLY AIR GUIDE 6120AR2194F 3H02932C 5210A21099E 5210A21099F REMARK Service Manual 49 - LG HBLG1803R | Service Manual - Page 50
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LG
Room
Air Conditioner
SERVICE MANUAL
LG
MODELS: LW1800PR
LW1800ER
LW1800ERZ3
LW1500PR
LW1500PRY3
LWP1830WAL
LWP1820PDL
LWP1820PEL
LWC182PLMM0
LWC183PLMD1
LWC212PLMM0
LW1804ER
LW1800PRZ3
HBLG1803R
CAUTION
website http://www.lgservice.com
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.