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lassele LRB-771PC Service Manual

Upright refrigerator & freezer
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Upright Refrigerator & Freezer
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Summary of Contents for lassele LRB-771PC

  • Page 1 Commercial Upright Refrigerator & Freezer Service Manual...

  • Page 2: Table Of Contents

    TABLE OF CONTENS 1. ASSEMBLY ……………………………………………………… 4~15 2. PARTS …………………………………………………………… 16~37 3. WIRING DIAGRAM ………………………………………… 38~40 4. PART DETAILS ………………………………………………… 41~45 5. MAIN COMPONENTS ………………………………………… 46~58 6. ELECTRONIC CONTROL INSTRUCTIONS ……………… 49~64 7. REPLACEMENT OF MAIN COMPONENTS ……………… 65~81 8. PART LIST ……………………………………………………… 82~84...
  • Page 3 Safety cautions during service ㆍ When exchanging or repairing electric parts, pull the plug out before exchanging and repairing. ㆍ When exchanging electric parts, use a rating part. - Be sure to check marks such as MODEL name, rating voltage, rating currents, movement temperature etc.

  • Page 4: Assembly

    1.ASSEMBLY (LRB-771PC)
  • Page 5 1-1. PART LIST : LRB-771PC CODE-No Title Subject Q'TY R8279-210 ASSY CABI FOAM R2103-445 COMPRESSOR PULL OUT CU-PIPE. OD9.52*T0.6*1716 R8613-355 EVAPORATOR ASSY AL W330*D246*H105 BM23R R3044-050 DOOR HINGE SHAFT UPP SM45C. ￠12*51.5 R3084-010 SUPPORT PCB NYLON NO.66. M4*8 R3212-231 FRAME ASSY 23...
  • Page 6 1. ASSEMBLY (LFB-771PC)
  • Page 7 1-2. PART LIST : LFB-771PC CODE-No Title Subject Q'TY R8279-100 ASSY CABI FOAM R2103-445 COMPRESSOR PULL OUT CU-PIPE. OD9.52*T0.6*1716 R2263-038 EVAPORATOR CU+AL. 23F R3044-050 DOOR HINGE SHAFT UPP SM45C. ￠12*51.5 R3084-010 SUPPORT PCB NYLON NO.66. M4*8 R3212-231 FRAME ASSY 23 WELDING 600LT R3314-282 TOP FRAME B/K...
  • Page 8 ASSEMBLY (LRB-771PCG)
  • Page 9 1-2. PART LIST : LRB-771PCG CODE-No Title Subject Q'TY R8279-100 ASSY CABI FOAM R2103-445 COMPRESSOR PULL OUT CU-PIPE. OD9.52*T0.6*1716 R2263-038 EVAPORATOR CU+AL. 23F R3044-050 DOOR HINGE SHAFT UPP SM45C. ￠12*51.5 R3084-010 SUPPORT PCB NYLON NO.66. M4*8 R3212-231 FRAME ASSY 23 WELDING 600LT R3314-282 TOP FRAME B/K...
  • Page 10 1. ASSEMBLY (LRB-1471PC)
  • Page 11 1-2. PART LIST : LRB-1471PC CODE-No Title Subject Q'TY R2103-942 COMPRESSOR PULL OUT CU-PIPE. T0.7*OD9.52*1930 R8163-345 EVAPORATOR ASSY AL W506*D246*H105 BM49R R3393-313 DOOR HINGE TOP T10*48*65.6*63 ZNDC2 R3084-010 SUPPORT PCB NYLON NO.66. M4*8 R3212-250 FRAME ASSY (49) 717.5*1408 R3214-282 TOP FRAME B/K GI.
  • Page 12 1. ASSEMBLY (LFB-1471PC)
  • Page 13 1-3. PART LIST : LFB-1471PC 1-4. CODE-No Title Subject Q'TY R2113-580 COMPRESSOR PULL OUT. A CU-PIPE OD9.52*T0.7*1900 R2263-048 EVAPORATOR R370A-030 SHAFT TOP HINGE SUM24L ￠15*45L R3084-010 SUPPORT PCB NYLON NO.66. M4*8 R3212-310 FRAME ASSY 49F 717.5*1408 R3214-282 TOP FRAME B/K GI.
  • Page 14 1. ASSEMBLY (LRB-1471PCG)
  • Page 15 1-5. PART LIST : LRB-1471PCG CODE-No Title Subject Q'TY R2263-048 EVAPORATOR R370A-030 SHAFT TOP HINGE SUM24L ￠15*45L R3084-010 SUPPORT PCB NYLON NO.66. M4*8 R3212-310 FRAME ASSY 49F 717.5*1408 R3214-282 TOP FRAME B/K GI. T1.0*30*59.6 R3233-162 SHELF-LF(49G) LF(49G) 609*580 R3233-172 SHELF-RH(49G) RH(49G) 609*580 R8429-012 ASSY SHELF CLIP...

  • Page 16: Parts

    2. PARTS 2-1. UNIT ASSY (LRB-771PC) CODE-No Title Subject Q'TY R7439-110 COMPRESSOR SK1A1C-L2W R2202-033 CONDENSER COIL SWST. ￠4.76*13190 R2114-350 DICHARGE PIPE CU. T0.6*￠6.35*130 R2104-421 CONDENSER DRYER PIPE CU. ￠4.76*321 R2183-032 DRYER (R-134A. 36G) R3202-386 BASE COMP GI. T1.2*359*605 R3313-260 CONDENSER FAN MOTOR BRACKET...
  • Page 17 2. PARTS 2-1. UNIT ASSY (LFB-771PC) CODE-No Title Subject Q'TY R7439-110 COMPRESSOR SK1A1C-L2W R2202-033 CONDENSER COIL SWST. ￠4.76*13190 R2104-492 COMPRESSOR PIPE CU. T0.7*￠6.35*462 R319A-420 PIPE DRYER INLET BM CU OD4.76*T0.7*L456.2 R2183-032 DRYER (R-134A. 36G) R3202-385 BASE COMP GI. T1.2*359*605 R3313-260 CONDENSER FAN MOTOR BRACKET R3729-050 CONDENSER FAN MOTOR BLADE...
  • Page 18 2. PARTS 2-1. UNIT ASSY (LRB-1471PC) CODE-No Title Subject Q'TY R7439-110 COMPRESSOR SK1A1C-L2W R2202-033 CONDENSER COIL SWST. ￠4.76*13190 R2104-421 CONDENSER DRYER PIPE CU. ￠4.76*321 R2183-032 DRYER (R-134A. 36G) R3004-270 COMPRESSOR BOLT STS. M6*30Y. ￠10 R3202-422 BASE COMP GI. T1.2*645*574 R2103-930 CONDENSER PIPE T0.7*OD4.86*654.
  • Page 19 2. PARTS 2-1. UNIT ASSY (LRB-1471PCG) CODE-No Title Subject Q'TY R3202-512 BASE COMP GI. T1.2*555*614 R2104-492 COMPRESSOR PIPE T0.7*￠6.35*462 R2113-580 COMPRESSOR PULL OUT R8623-030 HARD CORE DRIER ASSY R3004-270 COMPRESSOR BOLT STS. M6*30Y. ￠10 R3313-260 CONDENSER FAN MOTOR BRACKET R3723-050 CONDENSER FAN MOTOR BLADE 115V FAN MOTOR AL 9"...
  • Page 20 2. PARTS 2-1. UNIT ASSY (LFB-1471PC) CODE-No Title Subject Q'TY R3313-461 BASE COMP B/K SBHGI, T1.0*33.5*501 R2104-460 COMPRESSOR CHARGING PIPE CU-PIPE. OD6.35*T0.7*200 R2113-580 COMPRESSOR PULL OUT R8623-030 HARD CORE DRIER ASSY R3004-270 COMPRESSOR BOLT STS. M6*30Y. ￠10 R3313-260 CONDENSER FAN MOTOR BRACKET R3723-050 CONDENSER FAN MOTOR BLADE 115V FAN MOTOR AL 9"...
  • Page 21 2. PARTS 2-2. CROSS BAR ASSY MODEL : LRB-1471PC/1471PCG CODE-No Title Subject Q'TY PLATE CROSS BAR FRONT(BM R359B-431 STS430#4 T0.5 138.4*1323.9 49/72) R315A-361 BRACKET CROSS BAR STS443CT-2B T0.8*80*76.7 PLATE CROSS BAR REAR(BM STS443CT-2B R359B-441 49/72) T0.5*138.4*1323.9 R3373-630 SHELF STANDARD L AL.
  • Page 22 2. PARTS 2-3. DOOR ASSY (LRB-771PC, LFB-771P) CODE-No Title Subject Q'TY R359A-411 PLATE DOOR STS430 T0.5*1514.3*829.6 R3864-030 DOOR HINGE BUSHING BS. ￠16*25.3*1360 R3883-051 DOOR HINGE BLOCK UPP NY-66 (R620) R3883-041 DOOR HINGE BLOCK LOW NY-66 (R620) R368A-050 SASH DOOR S...
  • Page 23 2. PARTS 2-4. DOOR ASSY RH (LRB-1471PC, LFB-1471PC) CODE-No Title Subject Q'TY R359A-411 PLATE DOOR STS430 T0.5*1514.3*829.6 R3864-030 DOOR HINGE BUSHING BS. ￠16*25.3*1360 R3883-051 DOOR HINGE BLOCK UPP NY-66 (R620) R3883-041 DOOR HINGE BLOCK LOW NY-66 (R620) R368A-050 DOOR SASH-S ABS(RS800M BLACK) L=643 R368A-260 DOOR SASH-L...
  • Page 24 2. PARTS 2-4. DOOR ASSY LF (LRB-1471PC, LFB-1471PC) CODE-No Title Subject Q'TY R359A-411 PLATE DOOR STS430 T0.5*1514.3*829.6 R3864-030 DOOR HINGE BUSHING BS. ￠16*25.3*1360 R3883-051 DOOR HINGE BLOCK UPP NY-66 (R620) R3883-041 DOOR HINGE BLOCK LOW NY-66 (R620) R368A-050 DOOR SASH-S ABS(RS800M BLACK) L=643 R368A-260 DOOR SASH-L...
  • Page 25 2. PARTS 2-4. DOOR ASSY LF/RH (LRB-1471PCG) CODE-No Title Subject Q'TY R4133-793 DOOR FRAME AL 6063TS R817B-070,808 GLASS DOOR 판유리 R338A-080 GASKET DOOR SUPPORT GASKET ABS / RS-650 R3393-330 DOOR HANDLE ZN ALLOY SUPPORT SPRING SUS T1.2 CORNER ANGLE ZN ALLOY SPLIT WASHER SPLIT WASHER LOW BUSHING...
  • Page 26 2. PARTS 2-4. DOOR ASSY RH (LRB-771PCG) CODE-No Title Subject Q'TY R4133-793 DOOR FRAME AL 6063TS R817B-080 GLASS DOOR 판유리 R338A-080 GASKET DOOR SUPPORT GASKET ABS / RS-650 R3393-330 DOOR HANDEL ZN ALLOY SUPPORT SPRING SUS T1.2 CORNER ANGLE ZN ALLOY SPLIT WASHER SPLIT WASHER LOW BUSHING...
  • Page 27 2. PARTS 2-5. EVAPORATOR HOUSING ASSY (LRB-771PC) CODE-No Title Subject Q'TY R325A-150 EVAPORATOR HOUSING STS443CT. T0.5*575*558 R3812-141 EVAPORATOR FAN MOTMOR GUARD HIPS (VH-1800EX) R313A-050 BODY LAMP HIPS 60HRI,112*20.7*21 R723A-040 ASSY LED LAMP FR1,DC 12V, LED LAMP 4P R325A-141 COVER LAMP...
  • Page 28 2. PARTS 2-5. EVAPORATOR HOUSING ASSY (LRB-771PCG) CODE-No Title Subject Q'TY EVAPORATOR DRAIN PAN R3743-051 AL. T0.8 SMALL R1143-202 INSUL DRAIN 23 EPS. 17*530*256 R3813-482 EVAP HOUSING (23G) STS443CT-2B. T0.5*575*558 R2124-021 EVAPORATOR DRAIN HOSE A SILICON. CLEAR. 16*12. L=213 EVAPORATOR DRAIN ELBOW R3744-091 PP.
  • Page 29 2. PARTS 2-5. EVAPORATOR HOUSING ASSY (LFB-771PC) CODE-No Title Subject Q'TY R325A-150 EVAPORATOR HOUSING STS443CT. T0.5*575*558 R3812-141 EVAPORATOR FAN MOTMOR GUARD HIPS (VH-1800EX) R313A-050 BODY LAMP HIPS 60HRI,112*20.7*21 R723A-040 ASSY LED LAMP FR1,DC 12V, LED LAMP 4P R325A-141 COVER LAMP PC, MILKI WHITE R3744-101 EVAPORATOR DRAIN ELBOW LOW...
  • Page 30 2. PARTS 2-5. EVAPORATOR HOUSING ASSY (LRB-1471PC) CODE-No Title Subject Q'TY R325A-150 EVAPORATOR HOUSING STS443CT. T0.5*726.5*501.5 R3812-141 EVAPORATOR FAN MOTMOR GUARD HIPS (VH-1800EX) R313A-050 BODY LAMP HIPS 60HRI,112*20.7*21 R723A-040 ASSY LED LAMP FR1,DC 12V, LED LAMP 4P R325A-141 COVER LAMP PC, MILKI WHITE R3744-101 EVAPORATOR DRAIN ELBOW LOW...
  • Page 31 2. PARTS 2-5. EVAPORATOR HOUSING ASSY (LRB-1471PCG) CODE-No Title Subject Q'TY EVAPORATOR DRAIN ELBOW- R3744-091 PP WHITE(30209L0200) R1143-212 INSUL DRAIN 49 EPS. 17*800*256 R8139-140 EVAPORATOR HOUSING ASSY STS430-2B. T0.5*180.5*538 EVAPORATOR DRAIN ELBOW R3744-101 PP WHITE(30209L0200) R2124-021 EVAPORATOR DRAIN HOSE A SILICON.
  • Page 32 2. PARTS 2-5. EVAPORATOR HOUSING ASSY (LFB-1471PC) CODE-No Title Subject Q'TY R325A-172 EVAPORATOR HOUSING STS443CT 2B T0.5*1190.7*562.9 R3812-141 EVAPORATOR FAN MOTMOR GUARD HIPS (VH-1800EX) R313A-050 BODY LAMP HIPS 60HRI,112*20.7*21 R723A-040 ASSY LED LAMP FR1,DC 12V, LED LAMP 4P R325A-141 COVER LAMP PC, MILKI WHITE R3744-101 EVAPORATOR DRAIN ELBOW LOW...
  • Page 33 2. PARTS 2-6. TOP FRAME ASSY (LRB-771PC, LFB-771PC) CODE-No Title Subject Q'TY R3153-201 TOP FRAME LOW STS430-#4. T0.6*197*681 R3153-151 TOP FRAME MID PIECE-S ABS. BLK. L=571 R3153-113 TOP FRAME UPP STS430-#4. T0.6*679*159.3 R359A-431 PLATE TOP GRILL SIDE STS430#4 T0.5 R5133-160 MASCOT EPOXY.
  • Page 34 2. PARTS 2-6. TOP FRAME ASSY (LRB-771PCG) CODE-No Title Subject Q'TY R359C-440 PLATE TOP GRILLE LOW STS430-#4. T0.6*197*681 R3153-151 TOP FRAME MID PIECE-S ABS. BLK. L=571 R3153-113 TOP FRAME UPP STS430-#4. T0.6*679*159.3 R359C-431 PLATE TOP GRILL SIDE STS430-#4. T0.6*219.7*139 R5133-160 MASCOT EPOXY.
  • Page 35 2. PARTS 2-6. TOP FRAME ASSY (LRB-1471PC, LFB-1471PC) CODE-No Title Subject Q'TY R3153-141 TOP FRAME MID PIECE, L ABS, BLK, L=1260 R359A-490 TOP FRAME UPP 49 STS430-#4 T0.6*1368*158.9 R359A-510 TOP FRAME LOW STS430-#4 T0.6*1368*188 R359A-431 PLATE TOP GRILL SIDE STS430#4 T0.5 BM 전모델 R5133-160 MASCOT EPOXY.
  • Page 36 2. PARTS 2-6. TOP FRAME ASSY (LRB-1471PCG) CODE-No Title Subject Q'TY R3153-141 TOP FRAME MID PIECE, L ABS, BLK, L=1260 R3152-123 TOP FRAME UPP 49 STS430-#4. T0.6*1368*159.3 R359C-450 PLATE TOP GRILLE LOW BM49 STS430-#4. T0.6*197*1368 R359A-431 PLATE TOP GRILL SIDE STS430-#4.
  • Page 37 2. PARTS 2-7. EVAPORATOR DRAIN WATER-S ASSY MODEL : LRB-771PC, LFB-771PC, LRB-771PCG) CODE-No Title Subject Q'TY R3743-060 EVAPORATOR DRAIN WATER SMALL ABS,BLK(30211L0700) R3853-230 EVAPORATOR WICKING GUIDE P.P. WHT. T2.0*569*40 R1154-010 DRAIN WICKING K/T P.P. T2.5*99*103 C3009-110 SCREW THT2 4*6Y THT2 46Y...

  • Page 38: Wiring Diagram

    3. WIRING DIAGRAM 3-1. REFRIGERATOR ◇ LRB-771PC ◇ LRB-1471PC...
  • Page 39 3. WIRING DIAGRAM 3-1. REFRIGERATOR ◇ LRB-771PCG ◇ LRB-1471PCG...
  • Page 40 3. WIRING DIAGRAM 3-2. FREEZER ◇ LFB-771PC ◇ LFB-1471PC...

  • Page 41: Part Details

    4. PART DETAILS 4-1. TOP PANEL ◇ Display PCB ◇ Main PCB...
  • Page 42 4. PART DETAILS 4-2. COMPRESSOR COMPARTMENT ◇ Condensing Unit LRB-1471PC LFB-1471PC LRB-771PC, LFB-771PC...
  • Page 43 4. PART DETAILS 4-3. DOOR ◇ Door Gasket 4-4. COOLING COMPARTMENT ◇ Evaporator Housing (Duct) (LFB-1471PC) ◇ Refrigerator Evaporator (LFB-1471PC)
  • Page 44 4. PART DETAILS ◇ Condensate Drain Pan ◇ Condenser Fan Motor Assembly ◇ Compressor Capacitor (Running & Starting Capacitor)
  • Page 45 4. PART DETAILS ◇ Evaporator Housing (Duct) (LRB-771PC, LFB-771PC) ◇ Coil Evaporator (LFB-1471PC) ◇ Evaporator Defrost Heater (LFB-771PC, LFB-1471PC) LFB-1471PC LFB-771PC...

  • Page 46: Main Components

    5. MAIN COMPONENTS 5-1.COMPRESSOR LRB-771PC/PCG MODEL LRB-1471PC LRB-1471PCG LFB-1471PC LFB-771PC Refrigerant R-134a R-134a R-404a R-404a Voltage 115V 115V 115V 115V Comp. SK1A1C-L2W SK1A1C-L2W SC18G SC18CLX2 Model Part R7439-110 R7439-110 R714A-010 R7439-600 (DY) code Image 5-2.POWER-RELAY(COMP. RELAY) MODEL LFB-1471PC LRB-1471PCG KBSF-3...
  • Page 47 350VAC Spec 15 ㎌ 15 ㎌ 23.5 ㎌ 15 ㎌ Part (DY) R7549-260 R7549-260 R7549-260 R7549-290 code Image 5-5. DRYER LFB-1471PC MODEL LRB-771PC/PCG LRB-1471PC LFB-771PC LRB-1471PCG Refrigerant R-134a R-404a Spec 36GR Part (DY) R2183-032 R2183-200 code Image 5-6.CONDENSER COIL LFB-1471PC/LRB-...
  • Page 48 5-8. CONDENSER FAN MOTOR MODEL LRB-771PC/PCG LRB-1471PC/PCG LFB-771PC LFB-1471PC Voltage 115V/60Hz Motor Model DAI-8204DYCA Part (DY) R7423-311 code Image 5-9. BRACKET C-FAN MOTOR MODEL LRB-771PC/PCG LRB-1471PC/PCG LFB-771PC LFB-1471PC Spec SBHGI. T2.0*164 Part (DY) R315A-050 R315A-050 code Image 5-10.EVAPORATOR FAN MOTOR...
  • Page 49 5-11.EVAPORATOR COIL/RETAINER COIL MODEL LRB-771PC/PCG LRB-1471PC/PCG LFB-771PC LFB-1471PC Spec CU+AL CU+AL CU+AL CU+AL Part (DY) R2263-047 R8613-354 R8613-343 R2263-038 code Image 5-12. EVAPORATOR DEFROST HEATER MODEL LRB-771PC LRB-1471PC LFB-771PC LFB-1471PC Voltage 115V/60Hz Spec 445W 600W Part (DY) R7303-402 R7303-412 code Image 5-13.
  • Page 50 5-14. EVAPORATOR FAN MOTOR GUARD MODEL LRB-771PC/PCG LRB-1471PC/PCG LFB-771PC LFB-1471PC Spec HIPS (VH-1800EX) Part (DY) R3812-141 code Image 5-15. EVAPORATOR FAN MOTOR BRACKET MODEL LRB-771PC/PCG LRB-1471PC/PCG LFB-771PC LFB-1471PC Spec STS-304. T1.0*120*90 Part (DY) R3204-360 code Image 5-16. MAIN PCB LRB-771PC/PCG/LFB-...
  • Page 51 5-17. DISPLAY PCB MODEL LRB-771PC/PCG LRB-1471PC/PCG LFB-771PC LFB-1471PC Spec 88 SEGMENT. ℉ Part (DY) R7113-560 code Image 5-18. INLAY CONTROL MODEL LRB-771PC/PCG LRB-1471PC/PCG LFB-771PC LFB-1471PC Spec PC-SHEET Part (DY) R4113-371 code Image 5-19. HARNESS RELAY LFB- LFB- LRB- LRB- MODEL...
  • Page 52 5-21. EVAPORATOR THERMAL FUSE (BIMETAL) MODEL LRB-771PC LRB-1471PC LFB-771PC LFB-1471PC Spec MAX 75±5℃ Part (DY) R7253-052 code Image 5-22. TEMP-THERMISTOR, FRE MODEL LRB-771PC LRB-1471PC LFB-771PC LFB-1471PC Spec YELLOW Part (DY) R7213-082 code Image 5-23. DEFROST SENSOR (D-SENSOR) MODEL LRB-771PC LRB-1471PC...
  • Page 53 LRB-1471PCG LFB-771PC LFB-1471PC Spec UL AWG 18 Part (DY) R7483-140 R7483-130 R7483-140 R7483-130 code Image 5-26. EVAPORATOR DRAIN WATER MODEL LRB-771PC/PCG LRB-1471PC LFB-771PC LFB-1471PC Spec ABS. BLK. ABS. BLK. Part (DY) R3743-060 R3743-060 code Image 5-27. DRAIN PAN LRB- MODEL...
  • Page 54 5-29. EVAP WICKING KIT LRB- MODEL LRB-771PC/PCG LFB-771PC LFB-1471PC 1471PC/PCG Spec T2.5*99*103 T2.5*93*180 T2.5*99*103 T2.5*93*180 Part (DY) R1154-010 R1154-020 R1154-010 R1154-020 code Image 5-30. HEATER DRAIN PAN MODEL LRB-771PC LRB-1471PC LFB-771PC LFB-1471PC Spec 115V 90W 115V 90W Part (DY) R7303-174...
  • Page 55 5-33. DOOR SWITCH LRB- MODEL LRB-771PC/PCG LFB-771PC LFB-1471PC 1471PC/PCG Spec WHITE. SP201R-9D Part (DY) R7203-010 code Image 5-34. DOOR LOCK MODEL LRB-771PC/PCG LRB-1471PC/PCG LFB-771PC LFB-1471PC Spec ZDC. ZCR Part (DY) R3739-010 code Image 5-35. POWER SWITCH MODEL LRB-771PC/PCG LRB-1471PC/PCG LFB-771PC...
  • Page 56 5-36. ASSY SHELF CLIP LRB- MODEL LRB-771PC/PCG LFB-771PC LFB-1471PC 1471PC/PCG Spec 14 SET 26 SET 14 SET 26 SET Part (DY) R8429-022 R8429-012 R8429-022 R8429-012 code Image 5-37. SHELF STANDARD. L LRB- MODEL LRB-771PC/PCG LFB-771PC LFB-1471PC 1471PC/PCG Spec T1.2*930 Part...
  • Page 57 5-39. DOOR HINGE TOP MODEL LRB-771PC LRB-1471PC LFB-771PC LFB-1471PC Spec ZDC2. T10*42*64*63 Part (DY) R3393-313 code Image 5-40. DOOR HINGE STOP BOTTOM MODEL LRB-771PC LRB-1471PC LFB-771PC LFB-1471PC Spec ZDC2 T10*42*63 Part (DY) R3393-560 code Image 5-41. DOOR HINGE STOP PIN...
  • Page 58 5-43. DOOR HINGE SHAFT UPP MODEL LRB-771PC LRB-1471PC LFB-771PC LFB-1471PC Spec ￠12*61, SM45C Part (DY) R3044-050 code Image 5-44. ASSY CROSS BAR MODEL LRB-771PC LRB-1471PC LFB-771PC LFB-1471PC Spec 115V, 30W 115V, 38W Part (DY) R816A-201 R816A-211 code Image 5-45. DOOR ASSY...

  • Page 59: Electronic Control Instructions

    6. ELECTRONIC CONTROL INSTRUCTIONS 6-1. FREEZER CONTROL 6-1-1. HOW TO USE THE DISPLAY PCB PANEL 1. UP/DOWN BUTTON (Temperature control button) - By pushing the up/down button, you can set the inside temperature. 2. DEFROST - The electronic defrost controller is set at the factory to provide a defrost cycle every 8 hours.
  • Page 60 6. ELECTRONIC CONTROL INSTRUCTIONS 6-1-2. FUNCTION TABLE & MANUAL DEFROST Controlled Function Description Part 1. LED displays inside temperature. Initial 2. Begins to run immediately if higher than 50℉ and Operation begins to run after 5 minutes pause if lower than 50℉.
  • Page 61 6. ELECTRONIC CONTROL INSTRUCTIONS 6-1-3. ERROR CODE TABLE CODE Content Indicates Refrigeration state - Normal operation - OPEN - Time control C-sensor Comp ON : 6 MINUTES - SHORT Comp OFF: 11 MINUTES - OPEN (D1) (F3) (C1) D-sensor - SHORT 6-1-4.
  • Page 62 6. ELECTRONIC CONTROL INSTRUCTIONS 6-2. REFRIGERATOR CONTROL 6-2-1. HOW TO USE THE DISPLAY PCB PANEL 1. UP/DOWN BUTTON (Temperatrue control button) - By pushing the up/down, you can set the inside temperature. 2. DOOR OPENING INDICATOR - If door is opened, door opening indicator will bel turned on. - If the door is left open for 3 minutes an alarm will sound continuously.
  • Page 63 6. ELECTRONIC CONTROL INSTRUCTIONS 6-2-2. FUNCTION TABLE Controlled Function Description Part 1. LED displays inside temperature. Initial 2. Begins to run immediately if higher than 41℉ and Operation begin to run after 5 minutes pause if lower than 41℉. 1. The Temperature can be changed by pushing up/down buttons.
  • Page 64 Description 1. Press the Up key for 3 seconds. 2. The Defrost interval currently set will be displayed (Factory default : 8H). How to control the 3. Select the other interval by pushing the Up Key. Defrost interval (5H → 6H → 8H → 5H in rotation) 4.
  • Page 65 6. ELECTRONIC CONTROL INSTRUCTIONS 6-2-3. ERROR CODE CODE Content Indicates Refrigeration state - Normal operation - OPEN - Time control T-sensor Comp ON : 18 MINUTES - SHORT Comp OFF : 6 MINUTES (D1) - OPEN C-sensor (C1) - SHORT...

  • Page 66: Replacement Of Main Components

    7. REPLACEMENT OF MAIN COMPONENTS 7-1. TOP PANEL PARTS - MAIN PCB - LOCK ASSEMBLY or POWER SWITCH - DOOR SWITCH A. Remove the screws located on top grill panel. ■ CAUTION - DISCONNECT FROM POWER SOURCE BEFORE SERVICING...
  • Page 67 7. REPLACEMENT OF MAIN COMPONENTS B. Remove the screws located on bottom of top panel. # caution When unscrewing, hold the top panel. POWER TRANSFORMER C. Place the top panel on top of the cabinet. ■ CAUTION - DISCONNECT FROM POWER SOURCE BEFORE SERVICING...
  • Page 68 7. REPLACEMENT OF MAIN COMPONENTS E. Pull out the harness located on back of top panel. You can separate top panel out of the unit. You can replace power switch, lamp switch and display PCB. ■ CAUTION - DISCONNECT FROM POWER SOURCE BEFORE SERVICING...
  • Page 69 7. REPLACEMENT OF MAIN COMPONENTS 7-2. REPLACING DOOR A. Disassemble top panel as described section 6-1 A,B B. Remove bottom grill by unscrewing the four screws located on each side of bottom grill. C. Open the capacitor cover. ■ CAUTION ■...
  • Page 70 7. REPLACEMENT OF MAIN COMPONENTS D. Remove the hinge. ■ CAUTION - DISCONNECT FROM POWER SOURCE BEFORE SERVICING...
  • Page 71 7. REPLACEMENT OF MAIN COMPONENTS 7-3. DOOR SPRING ADJUSTMENT A. Detailed structure of DOOR HINGE B. Coordinated principle od DOOR TENSION After Putting Tool for revolving DOOR-HINGE STOP-PIN HOLE, Insert Door Hinge STOP-PIN into the hole after revolving up to the requested TENSION.
  • Page 72 7. REPLACEMENT OF MAIN COMPONENTS C. Remove the door hinge stop pin. D. Place the door hinge stop pin and adjust the strength of the door spring. ■ CAUTION - DISCONNECT FROM POWER SOURCE BEFORE SERVICING...
  • Page 73 7. REPLACEMENT OF MAIN COMPONENTS 7-4.REFRIGERATION COMPARTMENT'S PARTS - LAMP BULB, LAMP SHIELD - EVAPORATOR FAN MOTOR - EVAPORATOR DEFROST HEATER - EVAPORATOR COIL - D-SENSOR, C-SENSOR, T-SENSOR ? DRAIN HOSE HEATER A. Disassemble lamp shield B. Disassemble Evaporator Panel...
  • Page 74 7. REPLACEMENT OF MAIN COMPONENTS C. Pull out the lamp D. Replacing evaporator fan motor. A-1. Disconnect the fan motor's harness. A-2. Remove the four screws that are located on bottom of fan motor.
  • Page 75 7. REPLACEMENT OF MAIN COMPONENTS E. Replacing sensor E-1. FREEZER C-sensor : Remove as illustrated below and pull-out the FREEZER C-sensor from the cover. E-2. FREEZER D-sensor...
  • Page 76 7. REPLACEMENT OF MAIN COMPONENTS F. Drain hose heater F-1. After separating Evaporator cover from the freezer, set aside the screws. F-2. Pull out the heater for drain hose from the Evaporator. Cover and eliminate it with care in the direction of front side. F-3.
  • Page 77 7. REPLACEMENT OF MAIN COMPONENTS 7-5. UNIT - PARTS A. How to replace the COMPRESSOR, its Parts and Refrigerant. A-1. Remove the Mounting Screws from the sides of the front BOTTOM GRILL. A-2. Remove the BOTTOM GRILLE as the picture...
  • Page 78 7. REPLACEMENT OF MAIN COMPONENTS A-3. Remove the front Screws for the UNIT BASE. A-4. Pull out the UNIT BASE to the front side.
  • Page 79 7. REPLACEMENT OF MAIN COMPONENTS A-5. Remove the pipe connected to the COMPRESSOR. A-6. Remove the COMPRESSOR Mounting SCREWs, Replace the COMPRESSOR and weld the piping.
  • Page 80 7. REPLACEMENT OF MAIN COMPONENTS A-7. Remove the side Cover of the COMPRESSOR. A-8. Replace the O.L.P/PTC RELAYS.
  • Page 81 7. REPLACEMENT OF MAIN COMPONENTS A-9. Vacuum the Pipe at least 30 ~ 40 minutes and make enough vacuum. A-10. Fill up the Refrigerant in the volume set forth in the service manual. A-11. After the refrigerat is filled up, check any gas leakage with soap bubbles. A-12.
  • Page 82 7. REPLACEMENT OF MAIN COMPONENTS B. BALLAST 1. Remove four screws securing the sign frame end separate sign frame end. 2. Separate connector of the Ballast. 3. Remove two screws for separating the Ballast.

  • Page 83: Part List

    8. PART-LIST Solid Code Part name Description 23RG 49RG EVAPORATOR R2263-048 EVAPORATOR COIL(EVAPORATOR) CU+AL R8613-345 EVAPORATOR COIL(EVAPORATOR ASSY) CU+AL R2263-038 EVAPORATOR COIL(EVAPORATOR) CU+AL R8613-355 EVAPORATOR COIL(EVAPORATOR ASSY) CU+AL R7303-412 DEFROST HEATER UL 115V 600W R7303-402 DEFROST HEATER UL 115V 600W R7303-184 HEATER DRAIN PAN 115V 90W...
  • Page 84 8. PART-LIST Solid Code Part name Description 23RG 49RG BOTTOM GRILL R818A-310 ASSY GRILL BOTTOM SPOT WELD R10 R818A-300 ASSY GRILL BOTTOM SPOT WELD R10 R818A-550 ASSY GRILL BOTTOM SPOT WELD R10 R818A-560 ASSY GRILL BOTTOM SPOT WELD R10 SHELF R8429-012 ASSY SHELF CLIP 26SET...

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