LG LWC101GGMK1 Service Manual
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LG LWC101GGMK1 Service Manual

LG LWC101GGMK1 Service Manual

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Room Air Conditioner
SVC MANUAL(Exploded View)
MODEL : LWC101GGMK1
LWC101GGMK0
LWC081GSMK1
LWC081GSMK0
LWC081GGMK0
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com

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Summary of Contents for LG LWC101GGMK1

  • Page 1 Internal Use Only http://biz.lgservice.com Room Air Conditioner SVC MANUAL(Exploded View) MODEL : LWC101GGMK1 LWC101GGMK0 LWC081GSMK1 LWC081GSMK0 LWC081GGMK0 CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

  • Page 2: Table Of Contents

    4. The value should be over 1MΩ. tance test to protect the customer from being exposed to shock hazards. - 2 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 3: Specifications

    * DB:Dry Bulb ** WB:Wet Bulb NOTE : Specifications are subject to minor change without notice for further improvement. - 3 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 4: Features

    The damper is opened and room air is exhausted. 1.5.2 COOLING ONLY MODEL WITH REMOTE CONTROL AND TOUCH TYPE • DISPLAY - 4 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 REMOCON SIGNAL RECEIVER AUTO RESTART In failure of electric power, the unit runs as previous setting operation. (Available in some models) - 5 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 6: Disassembly Instructions

    (Refer to the circuit diagram found on page 24 in this manual or on the control box.) Figure 3 - 6 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: Air Handling Parts

    6. Remove the fan and then pull out the shroud. (See Figure 6) 7. Re-install by referring to the removal procedure. Figure 6 - 7 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 8: Electrical Parts

    6. Disconnect all the leads of capacitor terminals. 7. Re-install the components by referring to the removal procedure, above. (See Figure 9) Figure 9 - 8 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 9: Power Cord

    8. Remove the motor. 9. Re-install the components by referring to the Figure 11 removal procedure, above.(See Figure 11) - 9 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 10: Refrigeration Cycle

    3. Remove the capillary tube. 4. Re-install the component by referring to notes. - 10 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 11 Open valve C. Discharge the line at the manifold connection. 5) The system is now ready for final charging. - 11 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 14B-Charging Figure 14A-Pulling Vacuum - 12 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 13: Installation

    If the air conditioner is used in a hot and high Figure 17 humidity zone, exchange the HOLE RUBBER for the DRAIN PIPE.(See figure 16, figure 17.) - 13 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 14: How To Install

    SCREW(TYPE B) SCREW(TYPE C) FOAM-STRIP UPPER GUIDE FOAM-PE FRAME GUIDE WINDOW LOCKING BRACKET FOAM-PE DRAIN JOINT PIPE DRAIN WASHER - 14 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 15 • Do not pull the window sash down so tightly that the Foam-pe movement of Frame Curtain is restricted. Cabinet Frame Curtain Foam-pe Figure 19 - 15 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 16 CAUTION: DO NOT DRILL A HOLE IN THE BOTTOM PAN. The unit is designed to operate with approximately 1/2" of water in bottom pan. Figure 23 - 16 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 17 15. Window installation of room air conditioner is now completed. See ELECTRICAL DATA for attaching power cord to electrical outlet. Figure 29 - 17 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 18: How To Use The Reversible Inlet Grille

    4. If you want to pull out the filter downward, use the reversible inlet grille without change. (The grille is already assembled for that way.) Figure 33 - 18 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 19: Outside Dimensions

    LIQUID LIQUID OUTLET PRESSURE DROP (LIQUID REFRIGERANT) HIGH PRESSURE VAPOR LIQUID REFRIGERANT CAPILLARY TUBE LOW PRESSURE VAPOR Figure 34 - 19 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 20: Troubleshooting Guide

    Satisfactory operation with Repair clogging in refrigera- temperature difference of tion circuit. inlet & outlet air ; 44~50°F(7~10°C) - 20 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 Regular but fails to start. Irregular motor insulation ( Replacement of compressor (locking of rotor, metal). Replacement of compressor (Motor damaged) - 21 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 • Check the PCB Is the voltage No.18 of Micom pattern. DC 5V? Exchange Main PCB Ass'y. - 22 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 23 • Connect LEAD Wire to Is the wire connection of RY-COMP again. RY-COMP all right? • Check the RY-COMP. - 23 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 24 • Check the pattern of CN-DISP of Main PCB Main & Display PCB. Ass'y DC 5V? • Reference to OWNER'S MANUAL. - 24 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 25 Q02G, Q03G, Q04G operate normally • Exchange Q01G, on main PCB Ass'y? Q02G, Q03G, Q04G • Exchange the display PCB Ass'y. - 25 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 26 Pay attention to any change from high speed to low speed. If the speed does not change, replace the motor. - 26 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 27 Check overload, if externally mounted. Replace if open. (If the compressor temperature is high, remove the overload, cool, and retest.) - 27 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 Copper tubing Remove the cabinet carefully and rearrange tubing not to contact cabinet, compressor, shroud, and barrier. - 28 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 29: Schematic Diagram

    OR(BR) OR(BR) GN/YL (GN) CAPACITOR OR(BR) SYNC MOTOR RY-SYNC RY-COMP COMP. TRANS FORMER FUSE 250V/T2A (115V/T2A) 3854AR2330P WIRING DIAGRAM - 29 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 30: Electronic Control Device

    5.2 ELECTRONIC CONTROL DEVICE - 30 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 31: Components Location

    5.3 COMPONENTS LOCATION(OF MAIN P.C.B ASM) 5.4 COMPONENTS LOCATION(OF DISPLAY P.C.B ASM) • 8K, 10K Btu • 12K Btu - 31 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 32: Exploded View

    354210 567502 554160 349480 130410 135312 550140 159830 249950 567480 552102 W0CZZ 268711A 352113 264110 147582 147581 35211A 268711B - 32 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 33 354210 567502 554160 349480 130410 135312 550140 159830 249950 567480 W0CZZ 552113 268711A 352113 147582 264110 147581 35211A 268711B - 33 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 354210 567502 554160 349480 130410 135312 550140 159830 249950 567480 W0CZZ 552113 268711A 352113 264110 147582 147581 35211A 268711B - 34 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 35 354210 567502 554160 349480 130410 135312 550140 159830 249950 567480 552102 W0CZZ 268711A 352113 147582 264110 147581 35211A 268711B - 35 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 February, 2008 P/NO : 3828A20038S...

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