LG LMXC23746S Service Manual
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LG LMXC23746S Service Manual

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MODEL : LMXC23746S
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Summary of Contents for LG LMXC23746S

  • Page 1 MODEL : LMXC23746S - 1 -...
  • Page 2 SAFETY PRECATUTIONSS ..............................2 1. SPECIFICATIONS ................................3 2. PARTS IDENTIFICATION ..............................4 3. DISASSEMBLY................................5-25 REMOVING AND REPALCING REFRIGERATOR DOORS ....................5 DOOR ....................................6-7 SUB, PCB ....................................8 DOOR ALIGNMENT ................................9 FAN AND FAN MOTOR ..............................9-10 REFRIGERATOR LIGHT (TOP) ............................11-12 MULTI DUCT ..................................

  • Page 3: Specifications

    1. SPECIFICATIONS 1-1 LMXC23746S 22.7 cu.ft. ITEMS SPECIFICATIONS ITEMS SPECIFICATIONS DOOR DESIGN Side Rounded VEGETABLE TRAY Clear Drawer Type DIMENSIONS (inches) 35 3/4 X 31 1/5 X 70 1/4 (W X D X H)22.7cu.ft COMPRESSOR Linear NET WEIGHT (pounds) 150kg(330lb)
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  • Page 18 With both hands, pull out each rail simultaneously until both rails are fully extended. Grasp the drawer on each side and hook the door supports into the rail tabs located on both sides. Remove the screws on both the left and right rails.
  • Page 19 Loosen a screw - 19 -...
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  • Page 28 Ice Type When checking Resistance values, make sure to R efrigerator turn off the power, and wait for the voltage to Freezer discharge. Fresh Air Filter Auto Power F i l ter Reset Hold 3s ec Within 3 hours after the error : Press the Ice Plus button and Freezer button simultaneousl Ice Plus All errors, except for “E rt”, “E SS”, “E HS”, “E IS(except for Icing sensor)”.
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  • Page 82 11-4 Door Switch,R Function How to <Switch, Refrigerator> Measure Button (Plunger) Beep Standard Multimeter beep – Switch,R - 82 -...
  • Page 83 11-5 Door S witc h,F F unction How to No mag net Magnet near the Switch Measure magnet Magnet must be center of Switch Magnet Center Magnet Center S witc h Center S witc h Center B ad pos ition Good position S tandard - 83 -...
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  • Page 86 11-8 Damper F unction How to Measure < Damper Circ uit > Blue Blue White White C heck the 3 Y ellow < extension > C heck the C heck the S tandard Damper - 86 -...
  • Page 87 11-9 L amp Socket F unction How to Measure S tandard - 87 -...
  • Page 88 11-10 F low Sens or F unction How to Measure S tandard - 88 -...
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  • Page 92 12-2 Check B B1. LED blinks once, then repeats (FCT0 Fault) Protection Logic Blink OFF Blink OF F -Purpose: Detecting motor current and voltage error -Check voltage at point A( Motor Voltage), point B( Motor Current) andP oint C (Capacitor Voltage) when compressor is off.
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  • Page 94 B6. LED blinks seven times, then repeats n i l n i l n i l n i l n i l n i l n i l - Purpose : Prevent high current due to IPM Short - Cause : Damaged IPM (Dead Short) - Test for a dead short at Point A with a VOM.
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  • Page 96 12-4 Check D D1. Activate Protection logic Cycle check with protection logic D2. sealed system diagnosis Sealed System - 96 -...
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  • Page 98 LED operating condition Cause Service guideline LED two - time repetition (Stroke Trip) - off - - off - - off repeating LED five - time repetition (Piston Lock Trip) - off - - off repeating LED six - time repetition (Current Trip) - off - - off repeating...
  • Page 99 12-5 SERVICE DIAGNOSIS CHART COMPLAINT POINTS TO BE CHECKED REMEDY Recommended position. Warm position. colder position. Recommended position. Warm position. - 99 -...
  • Page 100 12-6 REPRIGERATOR CYCLE Troubleshooting Chart TEMPERATURE STATE OF STATE OF THE CAUSE OF THE REMARKS THE UNIT EVAPORATOR COMPRESSOR 12-6-1 Cleaning - 100 -...
  • Page 101 12-6-2 SEALED SYSTEM DIAGNOSIS “Not Cooling” Complaint All components operating, No airflow problems, Not frosted up as a defrost problem problem has been isolated to sealed system area Frost Partial None Pattern? Equalization Equalization Test Test Very Fast Very Slow Very Slow Very Fast Fast...
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  • Page 103 13-2 ICEMAKER FUNCTIONS 13-2-1 Icemaking Mode 13-2-2 Harvest Mode 13-2-3 Fill/Park Position 13-3 Trouble Shooting Ice & Water System Issues 13-3-1 Icemaker not making ice or not making enough ice (Environmental Diagnosis) Not making ice saddle valve. Water fill tube heater Is Icemaker’s tray filled all the water valve’...
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  • Page 105 STEP (Ice-detecting sensor Diagnosis) 2. Close the left door 1. Remove Ice bin from compartment 3. Wait for 3min. (Door switch pushed) 4. Freezer door stays open Ice Type Refrigerator 5. Push the refrigerator Freezer button & lock button at the same time.
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  • Page 108 14-1-8 CONTROL OF FREEZER FAN MOTOR 14-1-9 Cooling Fan Motor 14-1-10 Ice Compartment Fan 14-1-11 Refrigeration room Fan Motor 14-1-12 Ice PLUS 14-1-13 How to set the display mode and cancel it - 108 -...
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  • Page 110 CASE PARTS CAUTION : Use the part number to order part, not the position number. 405J 158C 207B 503D 402A 409D 500P 158A 409F 103B 282G 610F 282H 271B 103A 502A 120A 207A 628A 409H 631C 402A 405E 406D 610D 327B 332D 404C...
  • Page 111 CUSTOMCHILL PARTS CAUTION : Use the part number to order part, not the position number. 205D 264B 250J 150A 264A 150F 150E 205I 264A 150F 136C 264B...
  • Page 112 FREEZER PARTS CAUTION : Use the part number to order part, not the position number. 145G 145C 145I 145K 136B 145F 145M 133C 132Q 145J 136E 133C 145H 134A 205D 132P 150B 237C 150D 150C 136A...
  • Page 113 REFRIGERATOR PARTS CAUTION : Use the part number to order part, not the position number. 141Q 142C 141A 143A 142B 142D 141P 141R 141Q 141Q 141A 141A 141P 141P 141R 141R 162A 144A 161B 141D 154A 161C 151B 161C 151A 151C 161A 146E...
  • Page 114 DOOR PARTS CAUTION : Use the part number to order part, not the position number. 241A 205H 231B 233B 205F 235A 500C 180A 241C 241K 231A 233A 180A 212G 241K 241B 241K 241E 241E 243C 262C 244A 243B 619C 243D 312B 619B 243A...
  • Page 115 DISPENSER PARTS CAUTION : Use the part number to order part, not the position number. 276A 276G 276F 276I 405A 276B 275A 278C 279A 278D 279K 402E 402C 279L 501D 279B 281A 501A 279C...
  • Page 116 VALVE & WATER TUBE PARTS CAUTION : Use the part number to order part, not the position number. 617A 616G 603C 623B 616G 616J 623B 616J 616F 603C 627B 627A 619A 603B...
  • Page 117 ICE MAKER & ICE BIN PARTS CAUTION : Use the part number to order part, not the position number. 630J 630J 612A 630F 630B 630C 600A 611A 607A 630A 630H 630D 606A 630E 630Q 630G...

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