LG M2404ER Service Manual

LG M2404ER Manual

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  • LG M2404ER | Service Manual - Page 1
    Thru-the-Wall Series Service and Parts Manual Thru-the-Wall Series 115 Volts US08B US10B US12B 230 Volts US10B US12B US08/US10/US12 (05/05)
  • LG M2404ER | Service Manual - Page 2
    13 3.2 PIPING SYSTEM 13 3.3 TROUBLESHOOTING GUIDE 14 4. SCHEMATIC DIAGRAM 4.1 CIRCUIT DIAGRAM 19 5. EXPLODED VIEW 20 1. PREFACE This SERVICE MANUAL provides various service information, including the mechanical and electrical parts etc. This room air conditioner was manufactured and assembled
  • LG M2404ER | Service Manual - Page 3
    1.3.1 FOR US08B10A, US10B10A, US12B10A ITEMS MODELS US08B10A US10B10A US12B10A POWER SUPPLY 1Ø, 115V,60Hz CAPACITY (Btu/h) 8,000 9,800 11,700 INPUT (W) 830 1,110 1,250 RUNNING CURRENT (A) 7.5 10.2 11.4 E.E.R (Btu/w.h) 9.6 8.8 9.4 REFRIGERANT (R-22) CHARGE(g) 540g(19.1OZ
  • LG M2404ER | Service Manual - Page 4
    REFRIGERANT (R-22) CHARGE (g) EVAPORATOR CONDENSER FAN, INDOOR FAN, OUTDOOR FAN SPEEDS (FAN/COOLING/HEATING) FAN MOTOR OPERATION CONTROL ROOM TEMP. CONTROL AIR PART Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes -4- LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 5
    the air conditioner has been operating in the cooling and is turned off or set to the fan only position, wait at least 3 minutes before resetting to the cooling operation again. PULL OPEN / PUSH CLOSE Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG M2404ER | Service Manual - Page 6
    2. DISASSEMBLY INSTRUCTIONS - Prior to disassembling the unit, make sure that the POWER is found on pages 29~30 in this manual and on the control box.) Figure 2 Figure 3 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes -6- LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 7
    2.2 AIR HANDLING PARTS 2.2.1 ORIFICE, AND TURBO FAN 1. Remove the front grille. (Refer to section the components by referring to the removal procedures, above. Figure 8 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes -7- LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 8
    1. Remove the cabinet. (Refer to section 2.1.2) 2. Discharge the refrigerant system using a FreonTM Recovery System. Install a valve for recovery 10 Figure 11 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes -8- Figure 12 LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 9
    marked hole, , for ground connection.) 8. If the supply cord of this appliance is damaged, it must be replaced with the factory-authorized and specified cord. above. Figure 14 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes -9- LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 10
    2.4.2 EVAPORATOR 1. Remove the cabinet. (Refer to section 2.1.2) 2. Discharge the refrigerant completely - into a FreonTM Recovery System. 3. Remove the 2 screws which fasten Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 10 - LGE Internal Use
  • LG M2404ER | Service Manual - Page 11
    to discharge the refrigerant system using a FreonTM recovery System. Install a valve for the recovery, before venting the Freon, remove the valve when finished. 2. After discharging the unit completely, remove the desired component, and unbrace the pinch-off tubes. 3. Solder service valves into the
  • LG M2404ER | Service Manual - Page 12
    SEE INSETS BELOW EVAPORATOR (LOW PRESSURE SIDE) COMPRESSOR A B EXTERNAL VACUUM PUMP LOW HI B A CHARGING CYLINDER C Figure 17A-Pulling Vacuum Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 12 - Figure 17B-Charging LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 13
    COOLING AIR FOR REFRIGERANT PASS THROUGH LIQUID PRESSURE DROP COMPRESSOR OIL (LIQUID REFRIGERANT) CAPILLARY TUBE Figure 18 LIQUID OUTLET HIGH PRESSURE VAPOR LIQUID PEFRIGERANT LOW PRESSURE VAPOR Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
  • LG M2404ER | Service Manual - Page 14
    3.3 TROUBLESHOOTING GUIDE In general, possible trouble is classified in two causes. 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 is running
  • LG M2404ER | Service Manual - Page 15
    motor Irregular motor resistance ( ) Irregular motor insulation ( ) Replacement of compressor (Motor damaged) Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 15 - Regular but fails to start Replacement of compressor (locking of rotor, metal) LGE
  • LG M2404ER | Service Manual - Page 16
    sounds continue when running or loose, replace the motor. If the motor hums or noise appears to be internal while running, replace motor. Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes -- 1166-- LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 17
    is high, remove the overload, cool it, and retest.) ROOM AIR CONDITIONER VOLTAGE LIMITS NAME PLATE RATING MINIMUM 115V 103.5V 208/230V 187V MAXIMUM 126.5V 253V Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 17 - LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 18
    air flow restriction Insufficient cooling or heating Excessive noise. Condenser fins (damaged) Capacitor Wiring Refrigerating system Air loose or missing, correct. If the blower or fan is hitting air guide, rearrange the air handling parts. Remove the cabinet and carefully rearrange tubing not to
  • LG M2404ER | Service Manual - Page 19
    4. SCHEMATIC DIAGRAM 4.1 CIRCUIT DIAGRAM • MODEL : US08B10A, US10B10A, US12B10A, US10B30A, US12B30A LOCATION NO. DESCRIPTION 1 67300708 1 67301629 1 67500056 1 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 19 - LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 20
    5. EXPLODED VIEW • MODEL: US10B10A, US12B10A, US12B30A E 152302 135303 147581 147582A 132100 147582B E 35211A W0CZZ 554160 238310 237200 267110 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes 352113 552113 - 20 - 550140 LGE Internal
  • LG M2404ER | Service Manual - Page 21
    359012 435300A 435300 435301 554031 A W6631 268711A 567480 268711B 264110 147900 130410 C 352115 35211A W0CZZ 238310 237200 267110 Copyright ©2007 LG Electronics. Inc. All right reserved. Only for training and service purposes 352113 552113 - 21 - B 554160 550140 LGE Internal Use Only
  • LG M2404ER | Service Manual - Page 22
    FRIEDRICH AIR CONDITIONING CO. Visit our web site at www.friedrich.com Post Office Box 1540 • 4200 N. Pan Am Expressway • San Antonio, Texas 78295-1540 • (210) 357-4400 • FAX (210) 357-4480 P/NO.:3828A20294Q Printed in the U.S.A US08/US10/US12 (05/05)
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US08/US10/US12 (05/05)
Thru-the-Wall Series
Thru-the-Wall Series
Service and Parts
Manual
115 Volts
US08B
US10B
US12B
230 Volts
US10B
US12B