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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
MODEL: DH30
DH40
DH50 DH50E DH50EL DH65EL
DHR-3030 DHE-3031 DHR-4030 DHE-4031 DHR-5030
CAUTION - ONLY FOR AUTHORIZED SERVICE.
Service Manual - Page 2
...17
3.4 HOW TO REPLACE REFRIGERATION SYSTEM
18
4. REPLACEMENT PARTS LIST
30
-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
...temperature operation (DH5OEL/DH65EL)
1.2.2 DIMENSIONS (mm/in)
385 (15 3/16)
340 (13 6/16)
385 (15 3/16)
340 (13 6/16)
n •
30/40 Pints Model
Figure 1
-3-
50/65 Pints Model PREFACE
This Service Manual provides various service information, including the mechanical and electrical parts. The refrigerant is charged at the factory. This dehumidifier was manufactured and assembled...
Service Manual - Page 4
...)
30
40
50
CONTROL PANEL
MECHANICAL TYPE DH30, DHR-3030 DH40, DHR-4030 DH50, DHR-5030
ELECTRONIC TYPE DHE-3031
DHE-4031
DH50E, DH50EL
65 DH65EL
1.4 SPECIFICATIONS
ITEMS
MODELS
CAPACITY (Pints/24hrs)
DH30 DHR-3030 DHE-3031
30
DH40 DHR-4030 DHE-4031
40
DH50 DHR-5030
DH5OE DH5OEL*
50...
Service Manual - Page 6
...builds up to a temperature of the unit for the surrounding air to run. The bucket replaces in normal conditions. NOTE: The unit is designed to be operated at least 12 inches... temperature operation feature in the DH50EL and DH65EL models will have little or no effect in drying an adjacent enclosed storage area, such as the dehumidifier operates.
The fan continues to become
slightly...
Service Manual - Page 7
...refrigerant system and HIE, condenser and evaporator.
On opening the dryer, it should be set 'on' or 35%-70% RH(Relative Humidity) for normal operation. 1.6.5 HUMIDITY CONTROLLER
...Off to stop the unit manually.
1.6.6 DRYER (DH30, DHR-3030, DHE-3031)
Dryer is needed. NOTE: When dryer is replaced, proper injection to capillary is used to stop the unit manually.
1.6.5.2 Electronic Type The ...
Service Manual - Page 8
...N: NOT SERVICE PARTS S 5! DESCRIPTION
1 POWER CORD ASSEMBLY 2 SWITCH, ROCKER 3 MOTOR ASSEMBLY 4 PTC ASSEMBLY 5 RE-COMPRESSOR, SET 6 0LP 7 PWB(PCB) ASSEMBLY, DISPLAY 8 SENSOR ASSEMBLY 9 SWITCH ASSEMBLY, ROTARY 10 SWITCH ASSEMBLY, MICRO 11 PWB(PCB) ASSEMBLY, MAIN
PART NO. Zv'' - PTC _,4 RY-COMP
BL
4 0
3
BUCKET
m
CN-SEN WI
-< - c ., 0
0 °-
2. CIRCUIT DIAGRAM
• MODEL : DH30...
Service Manual - Page 9
...
3854A20247E
NO. • MODEL : DHE-3031
(
•
GN/YL =
CN-FAN BK H MOTOR RD LO OR COM
MAIN PCB
DISPLAY PCB
O_i
cc- DHE-3031 6411A20001Y 4681A20040E 6748C-0003D 2521C-A8626 6750C-0009E 6871A20279A 6877A30013H 6600A30003C 6871A20162K
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 DESCRIPTION
1 POWER CORD ASSEMBLY...
Service Manual - Page 10
... 'to
TRANS
THERMISTOR
C OLP
FUSE 250V T3.15A
BK(BR) (L)
WIRING DIAGRAM
3854A20247G
NO.
• MODEL : DH40/DHR-4030/DH50/DHR-5030
r
-N
ROCKER SWITCH RD(LOW
CN-RSW OR -_
----0 OR(COM...6600A30003C
6871A30032A
6871A3032B
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
x S: SERVICE PARTS A: ALTERNATE PARTS N: NOT SERVICE PARTS
-10- s
RD
RY-...
Service Manual - Page 11
... PARTS A: ALTERNATE PARTS N: NOT SERVICE PARTS
Q'TY REPER SET MARKS
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
1
S
WH(BL) (N)
BR CN-AC1
GN/YL
co
R
C CN-AC2
H
BUCKET CN-SEN S/W HUMIDITY
SENSOR
COMR s
C
RD
RY-COMP
BL 4 3
POWER TRANS
OLP
FUSE 250V T3.15A
THERMISTOR
BK(BR) (L)
WIRING DIAGRAM
3854A20247F i
NO. T >cc'- • MODEL : DHE-4031/DH5OE
f
1
CAPACITOR DISPLAY...
Service Manual - Page 12
...
0CZZA20001R
6120AR2359V
2520UCDA003
2520UCDA004
6750U-L058A
6750U-L048A
6871A20279A
6877A30013H
6600A30003C
6871A20162E
6421A20003E
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
1
S
1
S
1
S
1
S
1
S
-12- • MODEL : DH5OEL/DH65EL
CAPACITOR DISPLAY PCB
REVERSING COIL
CN-SNALVE BL BL
MAIN PCB
GNNL
CN-FAN...
Service Manual - Page 18
... through the access valve which you installed as the system was opened. 2)...set for discharging should be high efficiency. c.
Models charged with the unit still running , open . 3.4 HOW TO REPLACE... IS USED IN SOME MODELS. CHECK THE SPECIFICATION LABEL ON THE CABINET.... tube ports, leaving the valves open slowly with service valves. 5. Final discharging value must
be sure to...
Service Manual - Page 20
...
Does not defrost control. 4. Check the capacitor.
Check Motor, repair or replace it . 4. TROUBLESHOOTING GUIDE
CONDITION
1. Dehumidifier does not start. (Both compressor and fan motor do not operate... filter is not operating.
-20- Correct if none.
Install plug properly or replace it .
Connect wire. Repair or replace loose terminal.
Test capacitor. It must be between 103....
Service Manual - Page 21
...inside the housing. Repair. Test the capacitor. Replace if open. (If the compressor temperature is not installed properly. Compressor cycles on the Heat Exchange. Adjust tubing routine carefully.
If loose, repair or replace. It must be internal while running, replace motor assembly.
Check the terminals. Fan blade hits frame Internal compressor noise. Loose set screws Worn bearings...
Service Manual - Page 23
... HOUSING ASSEMBLY
550140 BUSHING
552111 TUBE ASSEMBLY, CAPILLARY
554030 CONDENSER ASSEMBLY
554160 COMPRESSOR, SET
359012 FAN, TURBO
567502 OLP ASSEMBLY
349600 MOUNT, MOTOR
135500 COVER (TOP)
436500... COVER ASSEMBLY, DISPLAY
349480 ORIFICE
336610 HOUSING ASSEMBLY
PART NO. DH40
DHR-4030
3041A10028A
3041A10028A
3091A20015B
3091A20015B
...• MODEL: DH4O/DHR-4030
LOCATION NO....
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