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Service Manual - Page 1
BEFORE SERVICING THE UNIT,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - http://biz.LGservice.com
Dehumidifier
SERVICE MANUAL
MODELS: DH300EY7/DH305Y7/DH300MY7/DH305T7 LD40Y7/DH400MY7 DH404EY7/DH400EY7/LD40EY7 DH504ELY7/LD50ELY7/LD50EBL/DH500MY7 LD65ELY7
CAUTION - ONLY FOR AUTHORIZED SERVICE.
Service Manual - Page 2
... HOW TO REPLACE REFRIGERATION SYSTEM 20
4. REPLACEMENT PARTS LIST 32
-2- 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...
Service Manual - Page 3
.../LD65ELY7)
1.2.2 DIMENSIONS (mm/in)
385 (15 5/32)
Continuous On. 4Hr. On/Off
High Low
TIMER
FAN SPEED
AUTO RESTART
HUMIDITY SETTING
HUMIDITY CONTROL
BUCKET FULL
POWER
ENERGY STAR
340 (13 3/8)
540 (21 1/4)
Figure 1
-3- PREFACE
This Service Manual provides various service information, including the mechanical and electrical parts. The refrigerant is charged at the factory.
Service Manual - Page 4
...
20.2(44.5)
22.5(49.6)
22.2(48.9)
*NOTE:Specifications are subject to minor change without notice for further improvement.
-4- DH305T7
DH300EY7
DH404Y7 DH400EY7,LD40EY7
DH504ELY7 LD65ELY7 LD50ELY7 LD50EBLY7
1.4 SPECIFICATIONS
ITEMS
MODELS
POWER SUPPLY(Phase,V,Hz) INPUT(W) RUNNING CURRENT(A) ENERGY FACTOR(L/kw.h) REFRIGERANT REFRIGERANT CHARGE, oz(g)
OPEN THERMISTOR CLOSE SOLENOID VALVE...
Service Manual - Page 9
... 2520UCBS005 6750U-L082A 6871A20600A 6877A30013L 6600A30003C 6871A20888A
Q'TY REPER SET MARKS
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
S: SERVICE PARTS A: ALTERNATE PARTS N: NOT SERVICE PARTS
-9- • MODEL : DH300EY7
NO. DESCRIPTION
1 POWER CORD ASSEMBLY 2 MOTOR ASSEMBLY 3 CAPACITOR 4 COMPRESSOR, SET 5 OLP 6 PWB(PCB) ASSEMBLY, DISPLAY 7 SENSOR ASSEMBLY 8 SWITCH ASSEMBLY...
Service Manual - Page 10
... SWITCH ASSEMBLY, MICRO 11 PWB(PCB) ASSEMBLY, MAIN
PART NO.
Q'TY REPER SET MARKS
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S • MODEL : DH400MY7/LD40Y7
NO. DH400MY7/LD40Y7
6411A20001Z 6600FX5001G 4681A20040Q 0CZZA20005N 2520UCAS003 6750U-L103A 6871A20289B 6877A30013L 6601A30006A 6600A30003C 6871A10142A
S: SERVICE PARTS A: ALTERNATE PARTS N: NOT SERVICE PARTS
-10-
Service Manual - Page 11
...6877A30013L 6600A30003C 6871A20888A
S: SERVICE PARTS A: ALTERNATE PARTS N: NOT SERVICE PARTS
-11- Q'TY REPER SET MARKS
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S DESCRIPTION
1 POWER CORD ASSEMBLY 2 MOTOR ASSEMBLY 3 CAPACITOR 4 COMPRESSOR,SET 5 OLP 6 PWB(PCB) ASSEMBLY,DISPLAY 7 SENSOR ASSEMBLY 8 SWITCH ASSEMBLY,MICRO 9 PWB(PCB) ASSEMBLY,MAIN
PART NO. • MODEL : DH404EY7/DH400EY7...
Service Manual - Page 12
Q'TY REPER SET MARKS
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S • MODEL : DH500MY7
NO. DH500MY7 6411A20001Z 6600FX5001G 4681A20040J 0CZZA20005J 2520UCBA010 6750U3L001A 6871A20289B 6877A30013L 6601A30006A 6600A30003C 6871A10142A
S: SERVICE PARTS A: ALTERNATE PARTS N: NOT SERVICE PARTS
-12-
DESCRIPTION
1 POWER CORD ASSEMBLY 2 SWITCH, ROCKER 3 MOTOR ASSEMBLY 4...
Service Manual - Page 13
... 6600A30003C 6871A20888A 6421A20003K
N: NOT SERVICE PARTS
-13- • MODEL : DH504ELY7
WIRING DIAGRAM
DISPLAY ...CAPACITOR
4 CAPACITOR
5 COMPRESSOR (ROTARY), SET
6 OLP.
7 PWB(PCB) ASSEMBLY, DISPLAY
8 SENSOR ASSEMBLY
9
SWITCH ASSEMBLY, MICRO
10 PWB(PCB) ASSEMBLY, MAIN 11 COIL ASSEMBLY, SOLENOID
S: SERVICE PARTS A: ALTERNATE PARTS
PART NO. Q'TY REPER SET MARKS
1
S
1
S
1
S...
Service Manual - Page 14
...MODEL : LD50ELY7/LD50EBLY7/LD65ELY7
NO. LD50EBLY7/LD50ELY7
LD65ELY7
1 POWER CORD ASSEMBLY
6411A20001Z
2 MOTOR ASSEMBLY
4681A20040J
4681A20040R
3 CAPACITOR
0CZZA20005J
0CZZA20005J
4 COMPRESSOR (ROTARY), SET..., MAIN
6871A20888A
10 COIL ASSEMBLY, SOLENOID
6421A20003K
S: SERVICE PARTS A: ALTERNATE PARTS N: NOT SERVICE PARTS
Q'TY REPER SET MARKS
1
S
1
S
1
S
1
S
1
S
...
Service Manual - Page 22
... Off position
Wire disconnected or loose
Capacitor. (Discharge capacitor before servicing.)
Compressor
Overload protector (OLP)
Defrost control is defective. Low relative humidity Poor air circulation H/E clogged with dust and dirt Air filter is full. Install plug properly or replace it .
4. TROUBLESHOOTING GUIDE
CONDITION
1. Bucket is dirty. Motor runs but compressor does...
Service Manual - Page 32
...COMPRESSOR ,SET FAN,TURBO OLP MOUNT,MOTOR HANDLE CASTER ASSEMBLY,ROLLER ESCUTCHEON COVER ASSEMBLY,DISPLAY HOSE,CONNECTOR ISOLATOR,COMP SHROUD REAR GRILLE
PART NO. DH305Y7 DH300MY7
DH305T7
3041A10042E
...3831A20079M
3551A20122A
5214A20027B
1WZZA31003A
4830A30005A
4998A10034B
3530A10193B
REMARK
-32-
REPLACEMENT PARTS LIST
• MODEL: DH305Y7/DH300MY7/DH305T7
LOCATION NO. 6.
Service Manual - Page 34
...EVAPORATOR,ASSEMBLY CONDENSOR ASSEMBLY COMPRESSOR ,SET FAN,TURBO OLP MOUNT,MOTOR HANDLE CASTER ASSEMBLY,ROLLER ESCUTCHEON COVER ASSEMBLY,DISPLAY HOSE,CONNECTOR BUSHING SHROUD REAR GRILLE
PART NO. DH400MY7/LD40Y7
3041A10042B ... 3831A20079E/K 3551A20122A 5214A20027B 4830A30005A 4998A10034B 3530A10193B
REMARK "B:LG/E:Goldstar"
"E:Goldstar/K:LG"
-34- • MODEL: DH400MY7/LD40Y7
LOCATION NO.
Service Manual - Page 35
• MODEL: DH404EY7/DH400EY7/LD40EY7
LOCATION NO.
... TUBE ASSEMBLY,SUCTION TUBE ASSEMBLY,DISCHARGE TUBE ASSEMBLY,CAPILLARY EVAPORATOR,ASSEMBLY CONDENSOR ASSEMBLY COMPRESSOR ,SET FAN,TURBO OLP MOUNT,MOTOR HANDLE CASTER ASSEMBLY,ROLLER ESCUTCHEON COVER ASSEMBLY,DISPLAY HOSE,CONNECTOR... 1WZZA31003A 4998A10034B 3530A10193B
REMARK "A:Goldstar/E:LG"
"A:Goldstar/J:LG"
-35- DESCRIPTION
PART NO.
Service Manual - Page 38
...4441A30001B 3831A20079A 3551A20109D 5214A20027B 4830A30005A 4998A10034B 3530A10193B
REMARK "A:Goldstar/E:LG"
"A:Goldstar/J:LG"
-38- • MODEL: LD50ELY7
LOCATION NO. DESCRIPTION
130410 131400 135312 330870...,DISCHARGE COIL ASSEMBLY,SOLENOID EVAPORATOR,ASSEMBLY CONDENSOR ASSEMBLY COMPRESSOR ,SET FAN,TURBO OLP MOUNT,MOTOR HANDLE CASTER ASSEMBLY,ROLLER ESCUTCHEON COVER ASSEMBLY,DISPLAY HOSE,CONNECTOR...
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