LG LD40EY5 Service Manual
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LG LD40EY5, —18— 1. When replacing a refrigeration component, be sure to discharge the refrigerant system by using a refrigerant recovery system. 2. After discharging the unit completely, remove the desired component, and unbraze the pinch-off tubes. 3. Solder service valves into the pinch-off tube ports, leaving the valves open. 4. Solder the pinch-off tubes with service valves. 5. After doing the above procedures, the valve must be closed and left in place on the system for any subsequent procedures. 6. Evacu
LG LD40EY5, —23— • MODEL: 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 266010 SWITCH ASSEMBLY,MICRO 6600A30003C 268711-1 PWB(PCB)ASSEMBLY,DISPLAY 6871A20482A 268711-2 PWB(PCB)ASSEMBLY,MAIN 6871A10141A 346811 MOTOR ASSEMBLY 4681A20040Q 35211A TUBE ASSEMBLY,SUCTION 5211A11057A 352113 TUBE ASSEMBLY,DISCHARGE 5211A110
LG LD40EY5, —5— 1 2 3 4 5 6 7 8 9 Off Max High Low Fan Speed Humidity Control Auto Shut-Off Constantly On. FAN SPEED TIMER High Low 4hr. On/Off 2hr. On/Off HUMIDITY CONTROL BUCKET FULL POWER AUTO RESTART HUMIDITY SETTING 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. • When excess moisture and dampness odors are gone, adjust the control to a lower setting. Use the dehumidifier as long as excess moisture is present. Fan Speed • The fan control adjusts the fan speed. Set the fan control
LG LD40EY5, 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) 3.1.2 FRONT CASE AND REAR GRILLE 1. Remove 2 screws which fasten the front grille. 2. Pull the front grille forward and upward. (See Figure 11) 3. Remove 6 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
LG LD40EY5, —21— CONDITION 5. Noisy operating 6. Water drips 7. Compressor cycles on overload protector. (OLP) CAUSE Fan Loose foreign material inside the housing. Tube hits frame. Fan blade hits frame Internal compressor noise. Loose set screws Worn bearings of Motor Assembly The bucket is not installed properly. Connection may be loose. Leak in bucket Water drips when bucket removed for emptying. Bucket overflows. High or low line voltage. (115V ± 10%) Poor air circulation. Heat Exchange clogged with dust or dirt. Motor Short circuit or ground in electrical circuit Unit pressures not equalized Capacitor Wiring Refrigeration system
LG LD40EY5, —2— 1. PREFACE 1.1 SAFETY PRECAUTIONS...........................................................................................................................3 1.2 FEATURES AND DIMENSIONS ................................................................................................................3 1.2.1 FEATURES........................................................................................................................................3 1.2.2 DIMENSIONS ...........................
LG LD40EY5, —23— • MODEL: DH300EY5 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
LG LD40EY5, —6— 1.6.1 HOW DOES THE DEHUMIDIFIER WORK? Moist, humid air is drawn over a cold refrigerated dehumidifying coil. Moisture in the air condenses on this coil and drains into a bucket (or through the bucket into a hose and drain). Dry, clean air is drawn over the condenser where it is actually heated several degrees and discharged out the rear grill into the room. (See Figure 4) ■ It is normal for the surrounding air to become slightly warmer as the dehumidifier operates. This warming effect further reduces the relative humidity of the surrounding air.
—15— 3.2.6 COIL ASSEMBLY, SOLENOID (DH504ELY5, LD50ELY5, LD65ELY5) 1. Disconnect the housing of the COIL ASSEMBLY, SOLENOID from the PCB(PWB) ASSEMBLY, MAIN. 2. Remove the screw that fastens the COIL ASSEMBLY, SOLENOID. (See Figure 19) 3. Pull it out upwards. 3.2.7 CONTROL PANEL 3.2.6.1 CONTROL PANEL - Mechanical Type (DH305Y5/DH300MY5/DH400MY5/LD40Y5) 1. Disconnect housing a
LG LD40EY5, —22— 5. EXPLODED VIEWS • MODEL: DH305Y5/DH300MY5 354210 554030 131400 349600 149980 165010 346811 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 M a x H g i h L o w d e e p S n a F l o r t n o C y t i d i m u H A u t o S h u t - O f f W0CZZ-2 268711-2 35211A 552111 567502 554160 550140 352113
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. Unfasten 3 screws that secure the Motor and earth wire. (See Figure 23) 5. Remove the Motor. 3.2.9 SHROUD AND DRAIN PAN 1. Discharge the refrigerant by using a ref
LG LD40EY5, —25— • MODEL: DH404EY5/DH400EY5/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
LG LD40EY5, —28— 6. REPLACEMENT PARTS LIST • MODEL: 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 249950 CONTROL BOX,ASSEMBLY 4995A20359U 264110 POWER CORD,ASSEMBLY 6411A20001Z 266002 SWITCH,ROCKER 6600FX5001G 266003 SWITCH ASSEMBLY,ROTARY 6601A30001B 266010 SWITCH ASSEMBLY,MICRO 6600A30003C 268711-1 PWB(PCB)ASSEMBLY,DISPLAY 6871A20289B 268711-2 PWB(PCB)ASSEMBLY,MAIN 6871A10142A 346811 MOTOR ASSEMBLY 4681A
LG LD40EY5, CONDITION 1. Dehumidifier does not start. (Both compressor and fan motor do not operate.) 2. Motor runs but compressor does not run. 3. Does not defrost control. 4. Insufficient dehumidification CAUSE No power Poor plug contact at outlet. Bucket is full. Humidity control is at Off position Wire disconnected or loose Capacitor. (Discharge capacitor before testing.) Voltage (115V ± 10%) Wiring Rotary switch Defrost control Capacitor (Discharge capacitor before servicing.) Compressor Overload protector (OLP) Defrost control is defective. Low relative humidity Poor air circulation H/E clogged with dust an
LG LD40EY5, —31— • MODEL: DH404E Y5/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 0CZZA20005N 249950 CONTROL BOX,ASSEMBLY 4995A20359F 264110 POWER CORD,ASSEMBLY 6411A20001Z 266010 SWITCH ASSEMBLY,MICRO 6600A30003C 268711-1 PWB(PCB)ASSEMBLY,DISPLAY 6871A20482A 268711-2 PWB(PCB)ASSEMBLY,MAIN 6871A10141A 346811 MOTOR ASSEMBLY 4681A20040J 35211A TUBE ASSEMBLY,SUCTION 5211A11057B 35211
LG LD40EY5, —8— 2. CIRCUIT DIAGRAM • MODEL : DH305Y5, DH300MY5 Q'TY PER SET 1 1 1 1 1 1 1 1 1 1 1 RE- MARKS S S S S S S S S S S S 1 2 3 4 5 6 7 8 9 10 11 DESCRIPTION POWER CORD ASSEMBLY SWITCH, 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
LG LD40EY5, —30— • MODEL: 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 6877A30013M W0CZZ-2 CAPACITOR 0CZZA20005N 249950 CONTROL BOX,ASSEMBLY 4995A20359H 264110 POWER CORD,ASSEMBLY 6411A20001Z 266002 SWITCH,ROCKER 6600FX5001G 266003 SWITCH ASSEMBLY,ROTARY 6601A30001B 266010 SWITCH ASSEMBLY,MICRO 6600A30003C 268711-1 P
—24— • MODEL: DH400MY5/LD40Y5 W0CZZ-2 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 H i g h L o 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 E N E R G Y S T A R M a x
LG LD40EY5, —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. B A COMPRESSOR COMPOUND GAUGE MANIFOLD GAUGE SEE INSETS BELOW EXTERNAL VACUUM PUMP CHARGING CYLINDER HILOW A B A B C CONDENSER ASSEMBLY (HIGH PRESSURE SIDE) EVAPORATOR ASSEMBLY (LOW PRESSURE SIDE) CAPILLARY TUBE Figure 31A-Pulling Vacuum Figure 31B-Charging
LG LD40EY5, —12— • MODEL : DH504ELY5/LD50ELY5/LD65ELY5 Q'TY PER SET 1 1 1 1 1 1 1 1 1 1 RE- MARKS S S S S S S S S S S 1 2 3 4 5 6 7 8 9 10 DESCRIPTION POWER CORD ASSEMBLY MOTOR ASSEMBLY CAPACITOR COMPRESSOR (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: S
—3— 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 • Disconnect the power supply befor
LG LD40EY5, —26— • MODEL: DH504ELY5/LD50ELY5 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
—17— 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. (See Figure 26) 4. Lift th
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