LG DH300EY5, Service Manual

Page 1: ...MODELS DH300EY5 DH305Y5 DH300MY5 LD40Y5 DH400MY5 DH404EY5 DH400EY5 LD40EY5 DH504ELY5 LD50ELY5 LD65ELY5 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 13 3 1 1 BUCKET AND AIR FILTER 13 3 1 2 FRONT CASE AND TOP COVER 13 3 1 3 CABINET AND CONTROL BOX 13 3 2 CONTROL PARTS 14 3 2 1 POWER CORD ASSEMBLY 14 3 2 2 SENSOR ASSEMBLY 14 3 2 3 PWB PCB ASSEMBLY MAIN 14 3 2 4 CAPACITOR 14 3 2 5 MICRO SWITCH ASSEMBLY 14 3 2 6 COIL ASSEMBLY SOLENOID 15 3 2 7 CONTROL PANEL 15 3 2 8 FAN AND MOTOR 16 3 2 9 DRAIN PAN 16 3 3 REF...

Page 3: ...any component 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 DH504EL LD50EL LD65EL 1 2...

Page 4: ... 36 1 75 1 50 REFRIGERANT REFRIGERANT CHARGE oz g 3 53 100 4 94 140 7 93 225 8 46 240 OPEN CLOSE SOLENOID VALVE Using Temp Humid 4 122 F 20 50 C 95 RH Rating 7W 90mA COMPRESSOR MODEL No QS064CAB QS075CBA 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 ...

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: ...ttle 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 automati...

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: ... ROCKER MOTOR ASSEMBLY CAPACITOR COMPRESSOR SET OLP PWB PCB ASSEMBLY DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY ROTARY SWITCH ASSEMBLY MICRO PWB PCB ASSEMBLY MAIN DH305Y5 DH300MY5 6411A20001Z 6600FX5001G 4681A20040Q 0CZZA20005J 2520UCBS005 6750U L082A 6871A20289B 6877A30013L 6601A30001B 6600A30003C 6871A10142A PART NO NO S SERVICE PARTS A ALTERNATE PARTS N NOT SERVICE PARTS ...

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 DH300EY5 6411A20001Z 4681A20040Q 0CZZA20005J 2520UCBS005 6750U L082A 6871A20482A 6877A30013L 6600A30003C 6871A10141A 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 DH400MY5 LD40Y5 6411A20001Z 6600FX5001G 4681A20040J 0CZZA20005N 2520UCAS003 6750U L103A 6871A20289B 6877A30013M 6601A30001C 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 DH404EY5 DH400EY5 LD40EY5 6411A20001Z 4681A20040J 0CZZA20005N 2520UCAS003 6750U L103A 6871A20482A 6877A30013M 6600A30003C 6871A10141A PART NO S SERVICE PARTS A ALTERNATE PARTS N NOT SERVICE PARTS NO ...

Page 12: ...SOR ROTARY SET OLP PWB PCB ASSEMBLY DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY MICRO PWB PCB ASSEMBLY MAIN COIL ASSEMBLY SOLENOID DH504ELY5 LD50ELY5 LD65ELY5 6411A20001Z 4681A20040J 4681A20040K 0CZZA20005J 0CZZA20005J 2520UCBA010 2520UCBA007 6750U L001A 6750U L048A 6871A20482A 6877A30013L 6600A30003C 6871A10141C 6421A20003K PART NO S SERVICE PARTS A ALTERNATE PARTS N NOT SERVICE PARTS NO ...

Page 13: ...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 14: ... 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 15: ...b 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 1 3 2 Rem...

Page 16: ...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 17: ...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 18: ...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 19: ...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 20: ...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 21: ...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 22: ...59012 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 23: ...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 238310 235512 268711 1 ...

Page 24: ... 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 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 25: ...LD40EY5 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 26: ...ELY5 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 266010 238310 435300 330870 235512 268711 1 ...

Page 27: ...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 266010 238310 435300 330870 235512 268711 1 ...

Page 28: ...PLAY 6871A20289B 268711 2 PWB PCB ASSEMBLY MAIN 6871A10142A 346811 MOTOR ASSEMBLY 4681A20040Q 35211A TUBE ASSEMBLY SUCTION 5211A11057A 352113 TUBE ASSEMBLY DISCHARGE 5211A11056A 552111 TUBE ASSEMBLY CAPILLARY 5211A31023B 354210 EVAPORATOR ASSEMBLY 5421A10009P 554030 CONDENSOR ASSEMBLY 5403A10008B W0CZZ 2 CAPACITOR 0CZZA20005J 554160 COMPRESSOR SET 2520UCBS005 359012 FAN TURBO 5900A20007A 567502 OL...

Page 29: ...681A20040Q 35211A TUBE ASSEMBLY SUCTION 5211A11057A 352113 TUBE ASSEMBLY DISCHARGE 5211A11056A 552111 TUBE ASSEMBLY CAPILLARY 5211A31023B 354210 EVAPORATOR ASSEMBLY 5421A10009P 554030 CONDENSOR ASSEMBLY 5403A10008B 558511 DRIER ASSEMBLY 5851A30001A 554160 COMPRESSOR SET 2520UCBS005 359012 FAN TURBO 5900A20007A 567502 OLP 6750U L082A 349600 MOUNT MOTOR 4960A20009B CAPACITOR 0CZZA20005J 436500 HANDL...

Page 30: ... 1 PWB PCB ASSEMBLY DISPLAY 6871A20289B 268711 2 PWB PCB ASSEMBLY MAIN 6871A10142A 346811 MOTOR ASSEMBLY 4681A20040J 35211A TUBE ASSEMBLY SUCTION 5211A11057B 352113 TUBE ASSEMBLY DISCHARGE 5211A10463A 552111 TUBE ASSEMBLY CAPILLARY 5211A31003B 354210 EVAPORATOR ASSEMBLY 5421A10009N 554030 CONDENSOR ASSEMBLY 5403A10008M 554160 COMPRESSOR SET 2520UCAS003 359012 FAN TURBO 5900A20007A 567502 OLP 6750U...

Page 31: ...SEMBLY MAIN 6871A10141A 346811 MOTOR ASSEMBLY 4681A20040J 35211A TUBE ASSEMBLY SUCTION 5211A11057B 352113 TUBE ASSEMBLY DISCHARGE 5211A10463A 552111 TUBE ASSEMBLY CAPILLARY 5211A31003B 354210 EVAPORATOR ASSEMBLY 5421A10009N 554030 CONDENSOR ASSEMBLY 5403A10008M 554160 COMPRESSOR SET 2520UCAS003 359012 FAN TURBO 5900A20007A 567502 OLP 6750U L103A 349600 MOUNT MOTOR 4960A20009B 436500 HANDLE 3650A20...

Page 32: ...SEMBLY MAIN 6871A10141C 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 6750U L001A 349600 MOUNT MOTOR 4960A20009B 436500 HANDLE 3650A200...

Page 33: ...SEMBLY MAIN 6871A10141C 346811 MOTOR ASSEMBLY 4681A20040K 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 3650A200...

Page 34: ...P No 3828A31001 January 2005 Printed in China ...