LG M1403R Service Manual
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LG M1403R Service Manual

LG M1403R Service Manual

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This Owner's Manual is provided and hosted by Appliance Factory Parts.
LG M1403R
Owner's Manual
Shop genuine replacement parts for LG M1403R
Find Your LG Air Conditioner Parts - Select From 2328 Models
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Summary of Contents for LG M1403R

  • Page 1 This Owner's Manual is provided and hosted by Appliance Factory Parts. LG M1403R Owner's Manual Shop genuine replacement parts for LG M1403R Find Your LG Air Conditioner Parts - Select From 2328 Models -------- Manual continues below --------...
  • Page 2 Internal Use Only http://biz.lgservice.com Room Air Conditioner SVC MANUAL(Exploded View) MODEL : M1403R WG1200RY3 M1404ER CAUTION Before Servicing the unit, read the safety precautions in General SVC manual. Only for authorized service personnel.

  • Page 3: Table Of Contents

    Piping System ............................25 Troubleshooting Guide ..........................26 Electrical Parts Troubleshooting Guide ....................28 Room Air Conditioner Voltage Limits......................32 Exploded View ..............................34 - 2 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 4: Safety Precautions

    • There is risk of fire or electric shock. • There is risk of electric shock. - 3 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 5 • If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and per- sonal injury. - 4 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 6: Dimensions

    This symbol indicates special notes. NOTICE Outside Dimensions Model M1403R, WG1200RY3, M1404ER Dimension mm(inch) 600(23 mm(inch) 380(14 mm(inch) 567(22 - 5 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 7: Product Specifications

    ** WB:Wet Bulb NOTE: Please refer to Label Quality on the produst since this specification may be changed for improving performance. - 6 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 8: Installation

    3. Select the most appropriate connection from among the following figures (by considering the hole of the unit) to fit drain pan to your own unit. Fig. 4 Fig. 3 - 7 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 9: How To Install(Models Without Installation Kit)

    6. Lift the inlet grille and secure it with a screw through the front grille. - 8 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 10: How To Install(Models With Installation Kit)

    FOAM-PE (920mm x 30mm x 2mm) DRAIN PIPE FRAME GUIDE I Top retainer bar is in the product package. - 9 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 11: Suggested Tool Requirements

    Frame Window stool Curtain is restricted. Front Angle Figure 2 Upper guide Window Sash Cabinet Frame Curtain Figure 3 - 10 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 12 9. Attach each Frame Curtain to the window sash by using screws (Type C).(See Figure Type C Figure 7 - 11 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 13 14. Lift the inlet grille and secure it with a type A screw through the front grille.(See Fig. 12) Figure 13 - 12 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 14: Operation

    1˚C (or within a range of 60°F to 86°F by 1°F). Select the lower number for lower temperature of the room. - 13 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 15: Disassembly

    (Refer to the circuit diagram found on page 22 in this manual and on the control box.) Figure 16 - 14 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 16: Air Handling Parts

    5. Remove the clamp which secures the fan. 6. Remove the fan. (See Figure 20) 7. Re-install by referring to the removal procedure. Figure 20 - 15 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 17: Electrical Parts

    6. Remove the compressor. (See Figure 23) 7. Re-install the components by referring to the Figure 23 removal procedure, above. - 16 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 18 - 17 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 19 5. Remove the 2 screws which fasten the synchro- nous motor. (See Fig. 27) 6. Re-install the components by referring to the removal procedure, above. Figure 27 - 18 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 20: Refrigerating Cycle

    5. Remove the evaporator. Figure 30 6. Re-install the component by referring to notes. (See Figure 30) - 19 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 21 Open valve C. Discharge the line at the manifold connection. 5) The system is now ready for final charging. - 20 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 22 Leak detector, Tubing cutter, Hand Tools to remove components, Service valve. Figure 31B-Charging Figure 31A-Pulling Vacuum - 21 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 23: Schematic Diagram

    PER SET POWER CORD ASSY MOTOR ASSY COMPRESSOR MAIN P.W.B ASSY DISPLAY P.W.B ASSY THERMISTOR CAPACITOR CONNECTOR ASSY OVERLOAD PROTECTOR - 22 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 24: Electronic Control Device

    Schematic Diagram Electronic Control Device - 23 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 25: Components Location

    Schematic Diagram Components Location 1. Main P.W.B Assembly 2. Display P.W.B Assembly 6871A2011B PWB P/NO:6870A90004D-3 - 24 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 26: Troubleshooting Guide

    MOTOR COMPRESSOR LIQUID LIQUID OUTLET PRESSURE DROP (LIQUID REFRIGERANT) HIGH PRESSURE VAPOR LIQUID REFRIGERANT CAPILLARY TUBE LOW PRESSURE VAPOR - 25 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 27: Troubleshooting Guide

    Satisfactory operation with Repair clogging in refrigera- temperature difference of tion circuit. inlet & outlet air ; 44~50°F(7~10°C) - 26 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 28 Regular but fails to start. Irregular motor insulation ( Replacement of compressor (locking of rotor, metal). Replacement of compressor (Motor damaged) - 27 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 29: Electrical Parts Troubleshooting Guide

    • Check the PCB Is the voltage No.20 of Micom pattern. DC 5V? Exchange Main PCB Ass'y. - 28 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 30 • Connect LEAD Wire to Is the wire connection of RY-COMP again. RY-COMP all right? • Check the RY-COMP. - 29 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 31 Ass'y DC 5V? • Connect connector to Is the connection of CN-DISP exactly. CN-DISP all right? • Exchange Receiver Ass'y. - 30 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 32 Does the Q01G~ Q04G operate normally • Exchange on main PCB Ass'y? Q01G~ Q04G • Exchange the display PCB Ass'y. - 31 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 33: Room Air Conditioner Voltage Limits

    If wires are off, refer to wiring diagram for identification, and replace. Check wire locations. If not per wiring diagram, correct. - 32 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 34 Copper tubing Remove the cabinet carefully and rearrange tubing not to contact cabinet, compressor, shroud, and barrier. - 33 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...

  • Page 35: Exploded View

    567502 147582 130410 554160 349480 550140 249950 135312 263230 35211A 135313 152302 W0CZZ 268711A 352111 352113 147581 264110 268711B - 34 - Copyright ©2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 36 FEBRUARY, 2008 P/NO : 3828A20325C...

This manual is also suitable for:

Wg1200ry3M1404er

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