Goldstar DH300E Service Manual
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Goldstar DH300E Service Manual

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See also: Owner's Manual
Dehumidifier
SERVICE MANUAL
MODELS: DH300E/DH304
LD40/DH400M/GD40E
DH404E/DH400E/LD40E
DH504EL/LD50EL
LD65EL
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 Goldstar DH300E

  • Page 1 Dehumidifier SERVICE MANUAL MODELS: DH300E/DH304 LD40/DH400M/GD40E DH404E/DH400E/LD40E DH504EL/LD50EL LD65EL 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

    1.3 MODEL NAMES MODEL NAME CAPACITY (Pints/24hrs) DH304, DH300M DH400M,LD40 MECHANICAL TYPE CONTROL DH300E GD40E,DH404E DH504EL LD65EL PANEL ELECTRONIC TYPE DH400E,LD40E LD50EL 1.4 SPECIFICATIONS DH304, DH300M DH400M, LD40 DH504EL* LD65EL* MODELS DH300E GD40E, DH404E LD50EL* ITEMS DH400E, LD40E POWER SUPPLY(Phase,V,Hz) 1Ø, 115V,60Hz...

  • 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

    SETTING Press the Power button to stop the unit manually. Figure 7 1.6.6 DRYER (DH304, DH300M, DH300E) Dryer is used to prevent capillary blockage from moisture in the refrigerant system and H/E, condenser and evaporator. Also, dryer is used to remove corrosion of the components.

  • Page 8: Circuit Diagram

    2. CIRCUIT DIAGRAM • MODEL : DH304, DH300M PART NO. Q'TY DESCRIPTION PER SET MARKS DH304, DH300M 6411A20001Z POWER CORD ASSEMBLY 6600FX5001G SWITCH, ROCKER 4681A20040J MOTOR ASSEMBLY 6748C-0003D PTC ASSEMBLY 2521C-A8626 RE-COMPRESSOR, SET 6750C-0009E 6871A20289B PWB(PCB) ASSEMBLY, DISPLAY 6877A30013L SENSOR ASSEMBLY 6601A30001B SWITCH ASSEMBLY, ROTARY 6600A30003C...
  • Page 9 • MODEL : DH300E PART NO. Q'TY DESCRIPTION PER SET MARKS DH300E 6411A20001Z POWER CORD ASSEMBLY 4681A20040J MOTOR ASSEMBLY 6748C-0003D PTC. ASSEMBLY 2521C-A8626 RE-COMPRESSOR, SET 6750C-0009E 6871A20482A PWB(PCB) ASSEMBLY, DISPLAY 6877A30013L SENSOR ASSEMBLY 6600A30003C SWITCH ASSEMBLY, MICRO 6871A10141A PWB(PCB) ASSEMBLY, MAIN...
  • Page 10 • MODEL : DH400M/LD40 PART NO. Q'TY DESCRIPTION PER SET MARKS DH400M/LD40 6411A20001Z POWER CORD ASSEMBLY 6600FX5001G SWITCH, ROCKER 4681A20040J MOTOR ASSEMBLY 0CZZA20005N CAPACITOR COMPRESSOR (ROTARY), SET 2520UCAS003 6750U-L103A OLP (ASSEMBLY) 6871A20289B PWB(PCB) ASSEMBLY, DISPLAY 6877A30013M SENSOR ASSEMBLY SWITCH ASSEMBLY, ROTARY 6601A30001C 6600A30003C SWITCH ASSEMBLY, MICRO...
  • Page 11 • MODEL : GD40E/DH404E/DH400E/LD40E PART NO. Q'TY DESCRIPTION GD40E/DH404E/DH400E PER SET MARKS LD40E 6411A20001Z POWER CORD ASSEMBLY 4681A20040J MOTOR ASSEMBLY 0CZZA20005N CAPACITOR 2520UCAS003 COMPRESSOR,SET 6750U-L013A 6871A20482A PWB(PCB) ASSEMBLY,DISPLAY 6877A30013M SENSOR ASSEMBLY 6600A30003C SWITCH ASSEMBLY,MICRO 6871A10141A PWB(PCB) ASSEMBLY,MAIN S: SERVICE PARTS A: ALTERNATE PARTS N: NOT SERVICE PARTS —11—...
  • Page 12 • MODEL : DH504EL/LD50EL/LD65EL PART NO. Q'TY DESCRIPTION PER SET MARKS DH504EL/LD50EL LD65EL 6411A20001Z POWER CORD ASSEMBLY 4681A20040J 4681A20040K MOTOR ASSEMBLY 0CZZA20001R 0CZZA20005J CAPACITOR 2520UCAA014 2520UCBA007 COMPRESSOR (ROTARY), SET 6750U-L058A 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

    ASSEMBLY, MAIN and pull it out after unhooking from 2 rectangular holes of the control box (lower). (See Figure 17) 3.2.4 CAPACITOR (Except DH304/DH300M/DH300E) 1. Remove the screw that fastens the capacitor. (See Figure 17) Figure 17 2. Disconnect all leads from the capacitor and then remove it from control box.

  • 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 (DH300E/GD40E/DH404E/DH400E/LD40E/DH504EL/ LD50EL/LD65EL) 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

    (See Figure 28) Figure 28 3.3.2 PTC OR OVERLOAD PROTECTOR (OLP) FOR RECIPROCATING COMPRESSOR (DH304/DH300M/DH300E) 1. Discharge the refrigerant by using a refrigerant Recovery System. 2. After purging the unit completely, unbraze the suction and discharge tubes at the compressor connections.

  • 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: DH304/DH300M 149980 268714 349600 554030 354210 359012 264110 249950 346811 435300 162615 130900 135312 266002 238310 149410 268712 436500 266003 352113 235512 152302 35211A 266011 552111 558511 752140 330870 130411 667482 144410 550140 554160 567502 148390 —22—...
  • Page 23 • MODEL: DH300E 149980 268714 349600 554030 354210 359012 264110 346811 249950 435300 130900 162615 135312 238310 268712 436500 352113 152302 35211A 266011 552111 558511 752140 330870 667482 130401 144410 550140 554160 567502 148390 —23—...
  • Page 24 • MODEL: DH400M/LD40 149980 W0CZZ 349600 554030 354210 359012 268714 249950 346811 435300 264110 130900 162615 135312 266002 238310 149410 268712 436500 266003 352113 235512 35211A 152302 266011 552111 752140 330870 567502 130411 554160 144410 148390 550140 —24—...
  • Page 25 • MODEL: GD40E/DH404E/DH400E/LD40E 149980 W0CZZ 349600 554030 354210 359012 268714 249950 346811 435300 264110 130900 162615 135312 238310 268712 436500 352113 35211A 152302 266011 552111 752140 330870 567502 130401 554160 144410 148390 550140 —25—...
  • Page 26 • MODEL: DH504EL/LD50EL 149980 W0CZZ 349600 554030 354210 359012 268714 346811 249950 435300 264110 130900 162615 135312 238310 268712 436500 552204 35211A 152302 266011 352113 752140 330870 567502 130401 554160 144410 148390 550140 —26—...
  • Page 27 • MODEL: D65EL 149980 W0CZZ 349600 554030 354210 359012 268714 346811 249950 435300 264110 130900 162615 135312 238310 268712 436500 552204 35211A 152302 266011 352113 752140 330870 567502 130401 554160 144410 550140 148390 —27—...

  • Page 28: Replacement Parts List

    6. REPLACEMENT PARTS LIST • MODEL: DH304/DH300M PART NO. LOCATION REMARK DESCRIPTION DH304/DH300M 130411 BASE ASSEMBLY 3041A10042C 130900 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10285C 330870 DRAIN PAN ASSEMBLY 3087A10019B 148390 TANK ASSEMBLY,BUCKET 4839A10002A 149410 KNOB ASSEMBLY 4941A30019B 152302 FILTER(MECH),AIR 5230A20040A 162615 SENSOR ASEMBLY 6877A30013L...
  • Page 29 • MODEL: DH300E PART NO. LOCATION REMARK DESCRIPTION DH300E 130411 BASE ASSEMBLY 3041A10042C 130900 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10254F 330870 DRAIN PAN ASSEMBLY 3087A10019B 148390 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 162615 SENSOR ASEMBLY 6877A30013L 249950 CONTROL BOX,ASSEMBLY 4995A20359G...
  • Page 30 • MODEL: DH400M/LD40 PART NO. LOCATION REMARK DESCRIPTION DH400M/LD40 130411 BASE ASSEMBLY 3041A10042B 130900 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10285B / 3531A10254A "B:LG/A:Goldstar" 330870 DRAIN PAN ASSEMBLY 3087A10019A 148390 TANK ASSEMBLY,BUCKET 4839A10002A 149410 KNOB ASSEMBLY 4941A30019B 152302 FILTER(MECH),AIR 5230A20040A 162615 SENSOR ASEMBLY...
  • Page 31 • MODEL: GD40E/DH404E/DH400E/LD40E PART NO. LOCATION REMARK DESCRIPTION GD40E/DH404E/DH400E/LD40E 130411 BASE ASSEMBLY 3041A10042B 130900 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10254A/E "A:Goldstar/E:LG" 330870 DRAIN PAN ASSEMBLY 3087A10019A 148390 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 162615 SENSOR ASEMBLY 6877A30013M W0CZZ CAPACITOR 0CZZA20005N...
  • Page 32 • MODEL: DH504EL/LD50EL PART NO. LOCATION REMARK DESCRIPTION DH504EL/LD50EL 130411 BASE ASSEMBLY 3041A10042A 130900 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10254A/E "A:Goldstar/E:LG" 330870 DRAIN PAN ASSEMBLY 3087A10019A 148390 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 162615 SENSOR ASEMBLY 6877A30013L W0CZZ CAPACITOR 0CZZA20001R...
  • Page 33 • MODEL: LD65EL PART NO. LOCATION REMARK DESCRIPTION LD65EL 130411 BASE ASSEMBLY 3041A10042A 130900 CABINET 3090A10042A 135312 FRONT GRILLE,ASSEMBLY 3531A10254E 330870 DRAIN PAN ASSEMBLY 3087A10019A 148390 TANK ASSEMBLY,BUCKET 4839A10002A 152302 FILTER(MECH),AIR 5230A20040A 162615 SENSOR ASEMBLY 6877A30013L W0CZZ CAPACITOR 0CZZA20005J 249950 CONTROL BOX,ASSEMBLY 4995A20359L 264110...
  • Page 34 January, 2004 P/No : 3828A31001A Printed in China...

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