Goldstar DH300EY7, Service Manual

Page 1: ...Y7 DH305Y7 DH300MY7 DH305T7 LD40Y7 DH400MY7 DH404EY7 DH400EY7 LD40EY7 DH504ELY7 LD50ELY7 LD50EBL DH500MY7 LD65ELY7 http biz LGservice com CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL ONLY FOR AUTHORIZED SERVICE ...

Page 2: ...MBLY INSTRUCTIONS 3 1 MECHANICAL PARTS 15 3 1 1 BUCKET AND AIR FILTER 15 3 1 2 FRONT CASE AND TOP COVER 15 3 1 3 CABINET AND CONTROL BOX 15 3 2 CONTROL PARTS 16 3 2 1 POWER CORD ASSEMBLY 16 3 2 2 SENSOR ASSEMBLY 16 3 2 3 PWB PCB ASSEMBLY MAIN 16 3 2 4 CAPACITOR 16 3 2 5 MICRO SWITCH ASSEMBLY 16 3 2 6 COIL ASSEMBLY SOLENOID 17 3 2 7 CONTROL PANEL 17 3 2 8 FAN AND MOTOR 18 3 2 9 DRAIN PAN 18 3 3 REF...

Page 3: ...onent Do not cut off the grounding prong or alter the plug in any manner 1 2 FEATURES AND DIMENSIONS 1 2 1 FEATURES Quiet operation High efficiency Adjustable humidistat Automatic defrost Automatic shut off Bucket full indicator light Easy roll casters Removable large capacity bucket Washable air filter Two speed fan Drain hose connection Low temperature operation DH504ELY7 LD50ELY7 LD50EBLY7 LD65...

Page 4: ...0 8 64 245 OPEN CLOSE SOLENOID VALVE Using Temp Humid 4 122 F 20 50 C 95 RH Rating 7W 90mA COMPRESSOR MODEL No SD074SW QA075CDB QA114CBD PROTECTOR CAPACITOR 40µF 270VAC 35µF 270VAC 35µF 270VAC MOTOR ASSEMBLY SINGLE Shaded pole motor 72W 1 4A Thermal cutoff 266 F 130 C Shaded pole motor 91W 1 8A Thermal cutoff 266 F 130 C SWITCH ASSEMBLY MICRO OUTSIDED MENSIONS WxHxD mm in NET WEIGHT kg lbs 20 1 44...

Page 5: ...umidifier When the light glows check the bucket condition Fan Speed This controls the speed of the airflow High Fan speed is set to high Low Fan speed is set to low When Fan Speed button is pressed the fan speed mode is changed Timer Press this button to select type of operation Select continuous On for uninterrupted operation Select either 2 or 4 hr On Off for cycled operation The unit will opera...

Page 6: ...e or no effect in drying an adjacent enclosed storage area such as a closet unless there is adequate circulation of air in and out of the area Fan Side View Condenser Evaporator Motor Compressor Rear Grille Bucket Dry Air Out Humid Air In 12 12 Figure 4 Figure 5 1 6 HOW TO OPERATE DEHUMIDIFIER 1 6 3 MICRO SWITCH The micro switch assembly which is located on the drain pan of inside unit automatical...

Page 7: ...nge is from 20 to 80 See Figure 6 Turn the Humidity Control to Off to stop the unit manually 1 6 5 2 Electronic Type The humidity control can be set on or 35 70 RH Relative Humidity for normal operation See Figure 7 If you need drier air press the Humidity Control button If you need moister air press the Humidity Control button Press the Power button to stop the unit manually HUMIDITY CONTROL HUMI...

Page 8: ...SEMBLY CAPACITOR COMPRESSOR SET OLP PWB PCB ASSEMBLY DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY ROTARY SWITCH ASSEMBLY MICRO PWB PCB ASSEMBLY MAIN DH305Y7 DH300MY7 6411A20001Z 6600FX5001G 4681A20040Q 0CZZA20005J TBZ30871801 EAF35787201 6871A20289B 6877A30013L 6601A30006A 6600A30003C 6871A10142A PART NO NO S SERVICE PARTS A ALTERNATE PARTS N NOT SERVICE PARTS DH305T7 TBZ31057901 6750U3L001A ...

Page 9: ... S S S S S S 1 2 3 4 5 6 7 8 9 DESCRIPTION POWER CORD ASSEMBLY MOTOR ASSEMBLY CAPACITOR COMPRESSOR SET OLP PWB PCB ASSEMBLY DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY MICRO PWB PCB ASSEMBLY MAIN DH300EY7 6411A20001Z 4681A20040Q 0CZZA20005J 2520UCBS005 6750U L082A 6871A20600A 6877A30013L 6600A30003C 6871A20888A PART NO NO ...

Page 10: ...SEMBLY CAPACITOR COMPRESSOR ROTARY SET OLP ASSEMBLY PWB PCB ASSEMBLY DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY ROTARY SWITCH ASSEMBLY MICRO PWB PCB ASSEMBLY MAIN DH400MY7 LD40Y7 6411A20001Z 6600FX5001G 4681A20040Q 0CZZA20005N 2520UCAS003 6750U L103A 6871A20289B 6877A30013L 6601A30006A 6600A30003C 6871A10142A PART NO S SERVICE PARTS A ALTERNATE PARTS N NOT SERVICE PARTS NO ...

Page 11: ...ASSEMBLY MOTOR ASSEMBLY CAPACITOR COMPRESSOR SET OLP PWB PCB ASSEMBLY DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY MICRO PWB PCB ASSEMBLY MAIN DH404EY7 DH400EY7 LD40EY7 6411A20001Z 4681A20040Q 0CZZA20005N TBZ30871801 EAF35787201 6871A20600A 6877A30013L 6600A30003C 6871A20888A PART NO S SERVICE PARTS A ALTERNATE PARTS N NOT SERVICE PARTS NO ...

Page 12: ...SEMBLY CAPACITOR COMPRESSOR ROTARY SET OLP ASSEMBLY PWB PCB ASSEMBLY DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY ROTARY SWITCH ASSEMBLY MICRO PWB PCB ASSEMBLY MAIN DH500MY7 6411A20001Z 6600FX5001G 4681A20040J 0CZZA20005J 2520UCBA010 6750U3L001A 6871A20289B 6877A30013L 6601A30006A 6600A30003C 6871A10142A PART NO S SERVICE PARTS A ALTERNATE PARTS N NOT SERVICE PARTS NO ...

Page 13: ...0V 2520UCBA010 6750U3L001A 6871A20600A 6877A30013L 6600A30003C 6871A20888A 6421A20003K PART NO S SERVICE PARTS A ALTERNATE PARTS N NOT SERVICE PARTS NO WIRING WIRING DIAGRAM DIAGRAM 3854A20247V 3854A20247V MAIN PCB CN FAN CN AC1 RY COMP O L Y R I H Y R FUSE 250V T3 15A POWER TRANS CN AC2 CN SEN P S I D N C HUMIDITY SENSOR THERMISTOR B C P Y A L P S I D BUCKET S W 4 3 BL BR RD WH BL N BK BR L K B B...

Page 14: ...SOR ROTARY SET OLP PWB PCB ASSEMBLY DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY MICRO PWB PCB ASSEMBLY MAIN COIL ASSEMBLY SOLENOID LD65ELY7 6411A20001Z 4681A20040J 4681A20040R 0CZZA20005J 0CZZA20005J 2520UCBA010 2520UCBA007 6750U3L001A 6750U L048A 6871A20600A 6877A30013L 6600A30003C 6871A20888A 6421A20003K PART NO S SERVICE PARTS A ALTERNATE PARTS N NOT SERVICE PARTS NO LD50EBLY7 LD50ELY7 ...

Page 15: ...screws that secure the rear grille 4 Remove the rear grille See Figure 12 3 1 3 CABINET AND CONTROL BOX 1 Remove the Bucket the Air filter and Front grille according to the procedure above 2 Remove 1 screws that fasten Control box See Figure 13 3 Remove 8 screws on all sides of the cabinet 4 Lift the Cabinet from the base See Figure 13 5 Remove a screw fasten the earth wire on the inside of contro...

Page 16: ... 4 Disconnect the switch wires from the micro switch assembly See Figure 16 3 2 3 PWB PCB ASSEMBLY MAIN 1 Disconnect all leads of the motor and the compressor from PWB PCB ASSEMBLY MAIN 2 Remove the screw which fastens the PWB PCB ASSEMBLY MAIN and pull it out after unhooking from 2 rectangular holes of the control box lower See Figure 17 3 2 4 CAPACITOR 1 Remove the screw that fastens the capacit...

Page 17: ...ut the knob assembly 3 Remove the nut which fastens the SWITCH ASSEMBLY ROTARY 4 Remove the knob of the rotary switch by pulling it upward 5 Pull out the rocker switch by pushing the hooks on the both sides of rocker switch 6 Pull out the PWB PCB ASSEMBLY DISPLAY after turning over both hooks of the display cover 1 Disconnect the housing of the PWB PCB ASSEMBLY DISPLAY from PWB PCB ASSEMBLY MAIN 3...

Page 18: ...N PAN 1 Discharge the refrigerant by using a refrigerant Recovery System 2 After purging the unit completely unbrace the Discharge and the Suction tube connected compressor carefully 3 Remove 2 screws that fasten the H E 4 Unfasten 2 screws that secure the shroud on the sides and then lift shroud from the drain pan See Figure 24 5 Unfasten 2 screws that secure the drain pan to base pan See Figure ...

Page 19: ...onnecting tubes of the evaporator and condenser carefully 6 Remove the H E assembly from the orifice See Figure 27 7 Unbraze the capillary tube at the connections of the condenser and evaporator See Figure 28 8 Remove 4 screws between the condenser and evaporator See Figure 28 3 3 2 COMPRESSOR 1 Discharge the refrigerant by using a refrigerant Recovery System 2 After purging the unit completely un...

Page 20: ...arging 7 Recharge as follows 1 Refrigeration cycle systems are charged from the High side If the total charge cannot be put in the High side the balance will be put in the suction line through the access valve which you installed as the system was opened 2 Connect the charging cylinder as shown in Figure 31B With valve C open discharge the hose at the manifold connection 3 Open valve A and allow t...

Page 21: ...seal leak detector tubing cutter hand tools to remove components service valve B A COMPRESSOR COMPOUND GAUGE MANIFOLD GAUGE SEE INSETS BELOW EXTERNAL VACUUM PUMP CHARGING CYLINDER HI LOW A B A B C CONDENSER ASSEMBLY HIGH PRESSURE SIDE EVAPORATOR ASSEMBLY LOW PRESSURE SIDE CAPILLARY TUBE Figure 31A Pulling Vacuum Figure 31B Charging ...

Page 22: ...nd 126 5V If not within limits call an electrician Check the wire connections If loose repair or replace the terminal If the wires are disconnected refer to wiring diagram for identification and replace the wires Check the wire connections If not according to the wiring diagram correct the connections Check for continuity refer to the wiring diagram for terminal identification Replace the switch i...

Page 23: ...it Replace compressor Tighten them If knocking sounds continue when running or loose replace the motor If the motor hums or noise appears to be internal while running replace motor assembly The bucket should be properly positioned on the hangers of the drain pan Check connection and repair Replace bucket Before removing bucket the unit should be turned off Check micro switch and float Check line v...

Page 24: ...11 359012 264110 148391 144410 752140 152302 436500 249950 266010 130410 235512 149410 435300 330870 266003 238310 135312 268711 1 266002 1 2 3 4 5 6 7 8 9 O f f Ma x H g i h Lo w d e e p S n a F l o r t n o C y t i d i m u H Auto Sh ut O ff W0CZZ 2 268711 2 35211A 552111 567502 554160 550140 352113 ...

Page 25: ...354210 554030 131400 349600 149980 165010 346811 359012 264110 148391 144410 752140 436500 249950 266010 130410 435300 330870 135312 W0CZZ 2 268711 2 35211A 552111 567502 554160 550140 352113 152302 235512 238310 268711 1 ...

Page 26: ... 165010 268711 2 264110 249950 352113 552111 550140 567502 554160 354210 554030 131400 349600 149980 346811 359012 148391 144410 752140 152302 436500 266010 130410 235512 149410 435300 330870 266003 238310 135312 268711 1 266002 35211A ...

Page 27: ...LD40EY7 W0CZZ 2 165010 268711 2 264110 249950 352113 552111 550140 567502 554160 354210 554030 135312 131400 349600 149980 346811 359012 148391 144410 752140 152302 436500 130410 235512 266010 238310 435300 330870 35211A 268711 1 ...

Page 28: ...502 554160 354210 554030 131400 349600 149980 346811 359012 148391 144410 752140 152302 436500 266010 130410 235512 149410 435300 330870 266003 238310 135312 268711 1 266002 Hi gh Lo w d e e p S n a F m u H o C y t i d i l o r t n o t u A O t u h S f f EN ER GY STA R Max Off 35211A ...

Page 29: ...010 249950 567502 554160 550140 354210 554030 135312 131400 148391 144410 752140 152302 436500 130410 235512 266010 238310 435300 330870 349600 149980 346811 359012 35211A 352113 552111 W0CZZ 2 268711 2 264110 W0CZZ 268711 1 ...

Page 30: ...BLY7 W0CZZ 2 165010 268711 2 264110 249950 35211A 352113 552204 567502 554160 550140 354210 554030 135312 131400 349600 149980 346811 359012 148391 144410 752140 152302 436500 130410 235512 266010 238310 435300 330870 268711 1 ...

Page 31: ...W0CZZ 2 165010 268711 2 264110 249950 35211A 552204 352113 567502 554160 550140 354210 135312 554030 131400 349600 149980 346811 359012 148391 144410 752140 152302 436500 130410 235512 266010 238310 435300 330870 268711 1 ...

Page 32: ... ASSEMBLY MAIN 6871A10142A 346811 MOTOR ASSEMBLY 4681A20040Q 35211A TUBE ASSEMBLY SUCTION AJR32658501 352113 TUBE ASSEMBLY DISCHARGE AJR32658601 552111 TUBE ASSEMBLY CAPILLARY 5211A30869C 354210 EVAPORATOR ASSEMBLY 5421A10009X 554030 CONDENSOR ASSEMBLY 5403A10008W W0CZZ 2 CAPACITOR 0CZZA20005J 554160 COMPRESSOR SET TBZ30871801 359012 FAN TURBO 5900A20007A 567502 OLP EAF35787201 349600 MOUNT MOTOR ...

Page 33: ...A20040Q 35211A TUBE ASSEMBLY SUCTION 5211A38801B 352113 TUBE ASSEMBLY DISCHARGE 5211A38800B 552111 TUBE ASSEMBLY CAPILLARY 5211A30869A 354210 EVAPORATOR ASSEMBLY 5421A10009X 554030 CONDENSOR ASSEMBLY 5403A10008U 558511 DRIER ASSEMBLY 5851A30001A 554160 COMPRESSOR SET 2520UCBS005 359012 FAN TURBO 5900A20007A 567502 OLP 6750U L082A 349600 MOUNT MOTOR 4960A20009B W0CZZ 2 0CZZA20005J 436500 HANDLE 365...

Page 34: ... 1 PWB PCB ASSEMBLY DISPLAY 6871A20289B 268711 2 PWB PCB ASSEMBLY MAIN 6871A10142A 346811 MOTOR ASSEMBLY 4681A20040Q 35211A TUBE ASSEMBLY SUCTION 5211A10645A 352113 TUBE ASSEMBLY DISCHARGE 5211A10644A 552111 TUBE ASSEMBLY CAPILLARY 5211A21755A 354210 EVAPORATOR ASSEMBLY 5421A10009V 554030 CONDENSOR ASSEMBLY 5403A10008S 554160 COMPRESSOR SET 2520UCAS003 359012 FAN TURBO 5900A20007A 567502 OLP 6750U...

Page 35: ...BLY MAIN 6871A20888A 346811 MOTOR ASSEMBLY 4681A20040Q 35211A TUBE ASSEMBLY SUCTION 5211A38801E 352113 TUBE ASSEMBLY DISCHARGE 5211A10644A 552111 TUBE ASSEMBLY CAPILLARY 5211A30869D 354210 EVAPORATOR ASSEMBLY 5421A10009X 554030 CONDENSOR ASSEMBLY 5403A10008N 554160 COMPRESSOR SET TBZ30871801 359012 FAN TURBO 5900A20007A 567502 OLP EAF35787201 349600 MOUNT MOTOR 4960A20009B 436500 HANDLE 3650A20004...

Page 36: ...CB ASSEMBLY DISPLAY 6871A20289B 268711 2 PWB PCB ASSEMBLY MAIN 6871A10142A 346811 MOTOR ASSEMBLY 4681A20040J 35211A TUBE ASSEMBLY SUCTION 5211A11054A 352113 TUBE ASSEMBLY DISCHARGE 5211A11053A 552111 TUBE ASSEMBLY CAPILLARY 5211A10085A 354210 EVAPORATOR ASSEMBLY 5421A10009Q 554030 CONDENSOR ASSEMBLY 5403A10008A 554160 COMPRESSOR SET 2520UCBA010 359012 FAN TURBO 5900A20007A 567502 OLP 6750U3L001A 3...

Page 37: ...A20888A 346811 MOTOR ASSEMBLY EAU32357501 35211A TUBE ASSEMBLY SUCTION 5211A11054A 352113 TUBE ASSEMBLY DISCHARGE 5211A11053A 552111 AJR32779301 354210 EVAPORATOR ASSEMBLY 5421A10009Q 554030 CONDENSOR ASSEMBLY 5403A10008A 554160 COMPRESSOR SET 2520UCBA010 359012 FAN TURBO 5900A20007B 567502 OLP 6750U3L001A 349600 MOUNT MOTOR 4960A20009D 436500 HANDLE 3650A30004A 144410 CASTER ASSEMBLY ROLLER 4441A...

Page 38: ...BLY MAIN 6871A20888A 346811 MOTOR ASSEMBLY EAU32357501 35211A TUBE ASSEMBLY SUCTION 5211A11054A 352113 TUBE ASSEMBLY DISCHARGE 5211A11053A 552204 COIL ASSEMBLY SOLENOID 6421A20003K 354210 EVAPORATOR ASSEMBLY 5421A10009Q 554030 CONDENSOR ASSEMBLY 5403A10008A 554160 COMPRESSOR SET 2520UCBA010 359012 FAN TURBO 5900A20007B 567502 OLP 6750U3L001A 349600 MOUNT MOTOR 4960A20009D 436500 HANDLE 3650A30004A...

Page 39: ...BLY MAIN 6871A20888C 346811 MOTOR ASSEMBLY 4681A20040J 35211A TUBE ASSEMBLY SUCTION 5211A11054A 352113 TUBE ASSEMBLY DISCHARGE 5211A11058A 552204 COIL ASSEMBLY SOLENOID 6421A20003K 354210 EVAPORATOR ASSEMBLY 5421A10009Q 554030 CONDENSOR ASSEMBLY 5403A10008A 554160 COMPRESSOR SET 2520UCBA010 359012 FAN TURBO 5900A20007A 567502 OLP 6750U3L001A 349600 MOUNT MOTOR 4960A20009B 436500 HANDLE 3650A20004C...

Page 40: ...BLY MAIN 6871A20888C 346811 MOTOR ASSEMBLY 4681A20040R 35211A TUBE ASSEMBLY SUCTION 5211A10454B 352113 TUBE ASSEMBLY DISCHARGE 5211A10544A 552204 COIL ASSEMBLY SOLENOID 6421A20003K 354210 EVAPORATOR ASSEMBLY 5421A10009R 554030 CONDENSOR ASSEMBLY 5403A10008L 554160 COMPRESSOR SET 2520UCBA007 359012 FAN TURBO 5900A20007A 567502 OLP 6750U L048A 349600 MOUNT MOTOR 4960A20009B 436500 HANDLE 3650A20004A...

Page 41: ...P No MFL38891303 January 2007 Printed in China ...