LG LD40EY5 Service Manual
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LG LD40EY5 Service Manual

Service manual
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Dehumidifier
SERVICE MANUAL
MODELS: DH300EY5/DH305Y5/DH300MY5
LD40Y5/DH400MY5
DH404EY5/DH400EY5/LD40EY5
DH504ELY5/LD50ELY5
LD65ELY5
CAUTION
- BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
- ONLY FOR AUTHORIZED SERVICE.
http://biz.LGservice.com
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Summary of Contents for LG LD40EY5

  • Page 1 Dehumidifier SERVICE MANUAL MODELS: DH300EY5/DH305Y5/DH300MY5 LD40Y5/DH400MY5 DH404EY5/DH400EY5/LD40EY5 DH504ELY5/LD50ELY5 LD65ELY5 CAUTION - BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - ONLY FOR AUTHORIZED SERVICE.

  • Page 2: Table Of Contents

    CONTENTS 1. PREFACE 1.1 SAFETY PRECAUTIONS ...........................3 1.2 FEATURES AND DIMENSIONS ........................3 1.2.1 FEATURES............................3 1.2.2 DIMENSIONS ............................3 1.3 MODEL NAMES ............................4 1.4 SPECIFICATIONS ............................4 1.5 CONTROL TYPE ............................5 1.5.1 MECHANICAL TYPE.........................5 1.5.2 ELECTRONIC TYPE .........................5 1.6 HOW TO OPERATE DEHUMIDIFIER ......................6 1.6.1 HOW DOES THE DEHUMIDIFIER WORK? ..................6 1.6.2 LOCATION FOR THE DEHUMIDIFIER.....................6 1.6.3 MICRO SWITCH..........................6...

  • Page 3: Preface

    1. PREFACE This Service Manual provides various service information, including the mechanical and electrical parts. This dehumidifier was manufactured and assembled under the strict quality control procedures. The refrigerant is charged at the factory. Be sure to read the safety precaution prior to servicing the unit. 1.1 SAFETY PRECAUTIONS •...

  • Page 4: Model Names

    PANEL ELECTRONIC TYPE DH400EY5,LD40EY5 LD50ELY5 1.4 SPECIFICATIONS DH305Y5, DH300MY5 DH400MY5, LD40Y5 DH504ELY5* LD65ELY5* MODELS DH300EY5 DH404EY5 LD50ELY5* ITEMS DH400EY5, LD40EY5 POWER SUPPLY(Phase,V,Hz) 1Ø, 115V,60Hz INPUT(W) 58 0 RUNNING CURRENT(A) ENERGY FACTOR(L/kw.h) 1.23 1.36 1.75 1.50 REFRIGERANT REFRIGERANT CHARGE, oz(g) 3.53(100) 4.94(140)

  • Page 5: Control Type

    1.5 CONTROL TYPE 1.5.1 Mechanical type Humidity Control • When you first use the dehumidifier, turn the humidity control to 5 or 6. If you still have moisture, turn the humidity control to a higher setting. MAX is the highest setting. High •...

  • Page 6: How To Operate Dehumidifier

    1.6 HOW TO OPERATE DEHUMIDIFIER 1.6.1 HOW DOES THE DEHUMIDIFIER WORK? Motor Moist, humid air is drawn over a cold refrigerated Condenser Evaporator dehumidifying coil. Moisture in the air condenses on this coil and drains into a bucket (or through the bucket into a Humid hose and drain).

  • Page 7: Humidity Controller

    1.6.5 HUMIDITY CONTROLLER 5(42%) 42% R.H 1.6.5.1 Mechanical Type 4(50%) 6(35%) The humidity control can be set anywhere between Off and Max for normal operation. 3(60%) 7(30%) If you need more dehumidification, turn the Humidity Control toward Max. If you need less dehumidification, turn the Humidity Control toward Off.

  • Page 8: Circuit Diagram

    2. CIRCUIT DIAGRAM • MODEL : DH305Y5, DH300MY5 PART NO. Q'TY DESCRIPTION PER SET MARKS DH305Y5,DH300MY5 6411A20001Z POWER CORD ASSEMBLY 6600FX5001G SWITCH, ROCKER 4681A20040Q MOTOR ASSEMBLY 0CZZA20005J CAPACITOR 2520UCBS005 COMPRESSOR, SET 6750U-L082A 6871A20289B PWB(PCB) ASSEMBLY, DISPLAY 6877A30013L SENSOR ASSEMBLY 6601A30001B SWITCH ASSEMBLY, ROTARY 6600A30003C SWITCH ASSEMBLY, MICRO...
  • Page 9 • MODEL : DH300EY5 PART NO. Q'TY DESCRIPTION PER SET MARKS DH300EY5 6411A20001Z POWER CORD ASSEMBLY 4681A20040Q MOTOR ASSEMBLY 0CZZA20005J CAPACITOR 2520UCBS005 COMPRESSOR, SET 6750U-L082A 6871A20482A PWB(PCB) ASSEMBLY, DISPLAY 6877A30013L SENSOR ASSEMBLY 6600A30003C SWITCH ASSEMBLY, MICRO 6871A10141A PWB(PCB) ASSEMBLY, MAIN S: SERVICE PARTS A: ALTERNATE PARTS N: NOT SERVICE PARTS...
  • Page 10 • MODEL : DH400MY5/LD40Y5 PART NO. Q'TY DESCRIPTION PER SET MARKS DH400MY5/LD40Y5 6411A20001Z POWER CORD ASSEMBLY 6600FX5001G SWITCH, ROCKER 4681A20040J MOTOR ASSEMBLY 0CZZA20005N CAPACITOR 2520UCAS003 COMPRESSOR (ROTARY), SET 6750U-L103A OLP (ASSEMBLY) 6871A20289B PWB(PCB) ASSEMBLY, DISPLAY 6877A30013M SENSOR ASSEMBLY 6601A30001C SWITCH ASSEMBLY, ROTARY 6600A30003C SWITCH ASSEMBLY, MICRO 6871A10142A...
  • Page 11 • MODEL : DH404EY5/DH400EY5/LD40EY5 PART NO. Q'TY DESCRIPTION DH404EY5/DH400EY5 PER SET MARKS LD40EY5 6411A20001Z POWER CORD ASSEMBLY 4681A20040J MOTOR ASSEMBLY 0CZZA20005N CAPACITOR 2520UCAS003 COMPRESSOR,SET 6750U-L103A 6871A20482A PWB(PCB) ASSEMBLY,DISPLAY 6877A30013M SENSOR ASSEMBLY 6600A30003C SWITCH ASSEMBLY,MICRO 6871A10141A PWB(PCB) ASSEMBLY,MAIN S: SERVICE PARTS...
  • Page 12 • MODEL : DH504ELY5/LD50ELY5/LD65ELY5 PART NO. Q'TY DESCRIPTION PER SET MARKS DH504ELY5/LD50ELY5 LD65ELY5 6411A20001Z POWER CORD ASSEMBLY 4681A20040J 4681A20040K MOTOR ASSEMBLY 0CZZA20005J 0CZZA20005J CAPACITOR 2520UCBA010 2520UCBA007 COMPRESSOR (ROTARY), SET 6750U-L001A 6750U-L048A OLP. 6871A20482A PWB(PCB) ASSEMBLY, DISPLAY 6877A30013L SENSOR ASSEMBLY 6600A30003C SWITCH ASSEMBLY, MICRO 6871A10141C PWB(PCB) ASSEMBLY, MAIN...

  • Page 13: Disassembly Instructions

    3. DISASSEMBLY INSTRUCTIONS 3.1 MECHANICAL PARTS 3.1.1 BUCKET AND AIR FILTER 1. Turn the Humidity Control off(Mechanical type) or press the power button off. (Electronic type) 2. Disconnect the power supply. 3. Remove the bucket. (See Figure 9) 4. Pull out the air filter. (See Figure 10) Figure 9 Figure 10...

  • Page 14: Control Parts

    3.2 CONTROL PARTS 3.2.1 POWER CORD ASSEMBLY 1. After opening the control box, remove the screw that holds the ground wire. (See Figure 15) 2. Disconnect the remaining leads of the power cord from the PWB(PCB) ASSEMBLY, MAIN, then remove it from the control box. Figure 15 3.2.2 SENSOR ASSEMBLY 1.

  • Page 15: Coil Assembly, Solenoid

    6. Pull out the PWB(PCB) ASSEMBLY, DISPLAY after turning over both hooks of the display cover. Figure 20 3.2.6.2 CONTROL PANEL - Electronic Type (DH300EY5/DH404EY5/DH400EY5/LD40EY5/DH504ELY5/ LD50ELY5/LD65ELY5) 1. Disconnect the housing of the PWB(PCB) ASSEMBLY, DISPLAY from PWB(PCB) ASSEMBLY, MAIN (3.1.3).

  • Page 16: Fan And Motor

    3.2.8 FAN AND MOTOR 1. Turn the nut left and full out the Fan by hands carefully. 2. Remove 2 screws that fasten Heat Exchange. 3. Lift the H/E and open the H/E around 45 degree clockwise carefully. (See Figure 22) 4.

  • Page 17: Refrigerating Cycle

    3.3 REFRIGERATING CYCLE 3.3.1 CONDENSER, EVAPORATOR AND CAPILLARY TUBE 1. Remove the insulation on the Heater/Evaporator (H/E) assembly 2. Pierce the pinch-off tube to discharge the refrigerant, using a refrigerant recovery system. 3. After discharging the refrigerant completely, remove 2 screws between the housing assembly and the H/E.

  • Page 18: How To Replace Refrigeration System

    3.4 HOW TO REPLACE THE REFRIGERATION SYSTEM 1. When replacing a refrigeration component, be sure 7. Recharge as follows : to discharge the refrigerant system by using a 1) Refrigeration cycle systems are charged from the refrigerant recovery system. High-side. If the total charge cannot be put 2.
  • Page 19 Equipment needed: Vacuum pump, charging cylinder, manifold gauge, brazing equipment. pinch-off tool capable of making a vapor-proof seal, leak detector, tubing cutter, hand tools to remove components, service valve. EVAPORATOR ASSEMBLY (LOW PRESSURE SIDE) CONDENSER ASSEMBLY (HIGH PRESSURE SIDE) COMPOUND GAUGE MANIFOLD GAUGE CAPILLARY...

  • Page 20: Troubleshooting Guide

    4. TROUBLESHOOTING GUIDE CONDITION CAUSE REMEDY 1. Dehumidifier does not start. (Both No power Check power supply at outlet. compressor and fan motor do not Correct if none. operate.) Poor plug contact at outlet. Install plug properly or replace it. Bucket is full.
  • Page 21 CONDITION CAUSE REMEDY 5. Noisy operating If cracked, out of balance, or partially missing, replace it Loose foreign material inside the housing. Remove it. Tube hits frame. Adjust tubing routine carefully. Fan blade hits frame Check Motor Mount. If loose, tighten it. Internal compressor noise.

  • Page 22: Exploded Views

    5. EXPLODED VIEWS • MODEL: DH305Y5/DH300MY5 W0CZZ-2 149980 349600 554030 354210 359012 268711-2 264110 249950 346811 435300 165010 131400 135312 266002 238310 149410 268711-1 436500 266003 352113 235512 35211A 152302 266010 552111 752140 330870 567502 130410 554160 144410 148391 550140 —22—...
  • Page 23 • MODEL: DH300EY5 W0CZZ-2 149980 349600 554030 354210 268711-2 359012 264110 249950 346811 435300 165010 131400 135312 238310 235512 268711-1 436500 352113 35211A 152302 266010 552111 752140 330870 567502 130410 554160 144410 148391 550140 —23—...
  • Page 24 • MODEL: DH400MY5/LD40Y5 149980 W0CZZ-2 349600 554030 354210 359012 268711-2 249950 346811 435300 264110 131400 165010 135312 266002 238310 149410 268711-1 436500 266003 352113 235512 35211A 152302 266010 552111 752140 330870 567502 130410 554160 144410 148391 550140 —24—...
  • Page 25 • MODEL: DH404EY5/DH400EY5/LD40EY5 149980 W0CZZ-2 349600 554030 354210 359012 268711-2 249950 346811 435300 264110 131400 165010 135312 238310 235512 268711-1 436500 352113 35211A 152302 266010 552111 752140 330870 567502 130410 554160 144410 148391 550140 —25—...
  • Page 26 • MODEL: DH504ELY5/LD50ELY5 149980 W0CZZ-2 349600 554030 354210 359012 268711-2 346811 249950 435300 264110 131400 165010 135312 238310 235512 268711-1 436500 552204 35211A 152302 266010 352113 752140 330870 567502 130410 554160 144410 550140 148391 —26—...
  • Page 27 • MODEL: LD65ELY5 149980 W0CZZ-2 349600 554030 354210 359012 268711-2 346811 249950 435300 264110 131400 165010 135312 238310 235512 268711-1 436500 552204 35211A 152302 266010 352113 752140 330870 567502 130410 554160 144410 550140 148391 —27—...

  • Page 28: Replacement Parts List

    6. REPLACEMENT PARTS LIST • MODEL: DH305Y5/DH300MY5 PART NO. LOCATION DESCRIPTION REMARK DH305Y5/DH300MY5 130410 BASE ASSEMBLY 3041A10042A 131400 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10285C 330870 DRAIN PAN ASSEMBLY 3087A10019C 148391 TANK ASSEMBLY,BUCKET 4839A10002A 149410 KNOB ASSEMBLY 4941A30019B 152302 FILTER(MECH),AIR 5230A20040A 165010 SENSOR ASEMBLY 6877A30013L...
  • Page 29 • MODEL: DH300EY5 PART NO. LOCATION DESCRIPTION REMARK DH300EY5 130410 BASE ASSEMBLY 3041A10042A 131400 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10254F 330870 DRAIN PAN ASSEMBLY 3087A10019C 148391 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 165010 SENSOR ASEMBLY 6877A30013L 249950 CONTROL BOX,ASSEMBLY 4995A20359S 264110 POWER CORD,ASSEMBLY 6411A20001Z...
  • Page 30 • MODEL: DH400MY5/LD40Y5 PART NO. LOCATION DESCRIPTION REMARK DH400MY5/LD40Y5 130410 BASE ASSEMBLY 3041A10042B 131400 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10285E / 3531A20285B "B:LG/E:Goldstar" 330870 DRAIN PAN ASSEMBLY 3087A10019C 148391 TANK ASSEMBLY,BUCKET 4839A10002A 149410 KNOB ASSEMBLY 4941A30019B 152302 FILTER(MECH),AIR 5230A20040A 165010 SENSOR ASEMBLY...
  • Page 31 • MODEL: DH404E Y5/DH400EY5/LD40EY5 PART NO. LOCATION DESCRIPTION REMARK DH404EY5/DH400EY5/LD40EY5 130410 BASE ASSEMBLY 3041A10042B 131400 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10254A/E "A:Goldstar/E:LG" 330870 DRAIN PAN ASSEMBLY 3087A10019C 148391 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 165010 SENSOR ASEMBLY 6877A30013M W0CZZ-2 CAPACITOR...
  • Page 32 • MODEL: DH504ELY5/LD50ELY5 PART NO. LOCATION DESCRIPTION REMARK DH504ELY5/LD50ELY5 130410 BASE ASSEMBLY 3041A10042A 131400 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10254A/E "A:Goldstar/E:LG" 330870 DRAIN PAN ASSEMBLY 3087A10019C 148391 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 165010 SENSOR ASEMBLY 6877A30013L W0CZZ-2 CAPACITOR 0CZZA20005J...
  • Page 33 • MODEL: LD65ELY5 PART NO. LOCATION DESCRIPTION REMARK LD65ELY5 130410 BASE ASSEMBLY 3041A10042A 131400 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10254E 330870 DRAIN PAN ASSEMBLY 3087A10019C 148391 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 165010 SENSOR ASEMBLY 6877A30013L W0CZZ-2 CAPACITOR 0CZZA20005J 249950 CONTROL BOX,ASSEMBLY 4995A20359L 264110...
  • Page 34 January, 2005 P/No : 3828A31001 Printed in China...

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