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Dehumidifier

SERVICE MANUAL

MODELS: DH300E/DH304 LD40/DH400M/GD40E DH404E/DH400E/LD40E DH504EL/LD50EL LD65EL
CAUTION - BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. - ONLY FOR AUTHORIZED SERVICE.

CONTENTS

1. 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 FOR THE DEHUMIDIFIER...6 1.6.3 MICRO SWITCH.....6 1.6.4 AUTO DEFROST....6 1.6.5 HUMIDITY CONTROLLER....7 1.6.6 DRYER.....7
2. CIRCUIT DIAGRAM....8 3. DISASSEMBLY 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 REFRIGERATING CYCLE....17 3.3.1 CONDENSER, EVAPORATOR AND CAPILLARY TUBE...17 3.3.2 PTC OR OVERLOAD PROTECTOR (OLP) FOR RECIPROCATING COMPRESSOR..17 3.3.3 ROTARY COMPRESSOR....17 3.4 HOW TO REPLACE REFRIGERATION SYSTEM...18
4. TROUBLESHOOTING GUIDE....20 5. EXPLODED VIEWS....22 6. REPLACEMENT PARTS LIST....28
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 before servicing or replacing 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)

1.2.2 DIMENSIONS (mm/in)

385 (15 5/32)
Continuous On. 4Hr. On/Off 2Hr. On/Off High Low

340 (13 3/8)

AUTO RESTART
HUMIDITY CONTROL BUCKET FULL

ENERGY STAR

TIMER FAN SPEED

HUMIDITY SETTING

Figure 1

540 (21 1/4)

1.3 MODEL NAMES
MODEL NAME CAPACITY (Pints/24hrs) MECHANICAL TYPE CONTROL PANEL ELECTRONIC TYPE 30 DH304, DH300M DH300E 40 DH400M,LD40 GD40E,DH404E DH400E,LD40E 50 DH504EL LD50EL 65 LD65EL

1.4 SPECIFICATIONS

MODELS ITEMS
POWER SUPPLY(Phase,V,Hz) INPUT(W) RUNNING CURRENT(A) ENERGY FACTOR(L/kw.h) REFRIGERANT REFRIGERANT CHARGE, oz(g) OPEN CLOSE THERMISTOR SOLENOID VALVE* COMPRESSOR MODEL No. TYPE P.T.C ASSEMBLY MAXIMUM PROTECTOR CAPACITOR MOTOR ASSEMBLY,SINGLE SWITCH ASSEMBLY,MICRO OUTSIDED MENSIONS WxHxD,mm(in) NET WEIGHT,kg(lbs) TIME AMPERE VOLTAGE 480 5.9 1.23 R134a 5.29(150) DH304, DH300M DH300E DH400M, LD40 GD40E, DH404E DH400E, LD40E DH504EL* LD50EL* LD65EL*

1, 115V,60Hz 580 5.7 1.36 4.94(140) 33.8F(10.5C) 50F(100.5C)
630 5.7 1.56 R22 7.23(205)

830 8.4 1.54 8.82(250)

LX86HAQG P6R8MC WORKING TIME:0.3~1.3sec RETURN TIME:65sec 10A 200V QS075CBA
Using Temp/Humid.:-4~122F(-20~50C)/95%RH Rating:7W/90mA

QA084CBC

QA114CBD
OVERLOAD PROTECTOR FOR COMPRESSOR INTERNAL PROTECTOR(FUSE)FOR MOTOR 40F, 270VAC 35F, 270VAC 35F, 270VAC Shaded pole motor, 91W/1.8A, Shaded pole motor, 72W/1.4A, Thermal cutoff:266F/130C Thermal cutoff:266F/130C 15A/250VAC 385X540X340(15 5/32 x 21 1/4 x 13 3/8) 23.1(51) 17.7(39) 20.4(45) 22.2(49)
*NOTE:Specifications are subject to minor change without notice for further improvement.

1.5 CONTROL TYPE

1.5.1 Mechanical type
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. Figure 2 Fan Speed The fan control adjusts the fan speed. Set the fan control to HIGH for maximum moisture removal. When the humidity has been reduced and quiet operation is preferred, set the fan control to LOW.

8 High

Auto Shut-Off

Fan Speed

Humidity Control
Auto Shut-Off This light glows when the bucket is full, or when the bucket is removed or not placed in the proper position. In these cases the Water Level Control Switch shuts off the dehumidifier. When the light glows, check the bucket condition.

1.5.2 Electronic type

Constantly On. 4hr. On/Off 2hr. On/Off High Low

HUMIDITY CONTROL

BUCKET FULL
Bucket Full Indicator This light glows when the water bucket is full and needs to be emptied. Power Operation starts when this button is pressed and stops when the button is pressed again.

FAN SPEED

Figure 3 Auto Restart Once power is restored after a power outage, the unit returns to its previous operation setting after a 2 minute delay. The fan runs immediately when the power is restored. Humidity Control This button controls the humidity in the room. Press button to raise the humidity setting. Press button to lower the humidity setting. The humidity setting can be set to a permanent "On" setting or to a specific humidity setting between 35% and 70% in 5% increments. "On" setting: Dehumidifier runs continuously regardless of humidity condition. 35% - 70% setting: Dehumidifier runs on and off according to surrounding humidity conditions.

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 operate for 2 or 4 hours, and then shut off completely for 2 or 4 hours. The cycle repeats until you change the setting. When Timer button is pressed, the Timer indicator lights shift as follow from 2hr.On/Off to 4hr.On/Off.
1.6 HOW TO OPERATE DEHUMIDIFIER
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) s 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.
Motor Condenser Fan Evaporator Humid Air In Dry Air Out
Rear Grille Bucket Compressor
1.6.2 LOCATION FOR THE DEHUMIDIFIER
Allow at least 12 inches of space on all sides of the unit for good air circulation. (See Figure 5) s The dehumidifier must be operated in an enclosed area to be most effective. s Close all doors, windows and other outside openings to the room. Place the dehumidifier in a location that does not restrict air flow into the front grille or out the rear grille. The operation of dehumidifier in a basement will have little 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.

Side View

Figure 4

12"

Figure 5

1.6.3 MICRO SWITCH

The micro switch assembly, which is located on the drain pan of inside unit, automatically shuts off the dehumidifier when the bucket is full (note, the Auto Shut Off lights, to indicate bucket must be emptied). The bucket replaces in its place, the unit again turns itself on.

1.6.4 AUTO DEFROST

When frost builds up on the cooling coils, the unit will automatically cycle off until the frost disappears. The fan continues to run. NOTE: The unit will not operate satisfactorily if the room temperature is below 65F(18C). If the dehumidifier is operated in low temperature conditions frost can form in the evaporator coil and the unit will cycle ON/OFF repeatedly. In this case, please check your room temperature conditions and stop the unit. NOTE: The low temperature operation feature in the DH504EL, DH50EL and DH65EL models will continuously cycle up to a temperature of 42F(6C).

1.6.5 HUMIDITY CONTROLLER
1.6.5.1 Mechanical Type The humidity control can be set anywhere between Off and Max for normal operation. If you need more dehumidification, turn the Humidity Control toward Max. If you need less dehumidification, turn the Humidity Control toward Off. The relative humidity range is from 20% to 80%. (See Figure 6) Turn the Humidity Control to Off to stop the unit manually.

42% R.H 4(50%) 3(60%)

5(42%) 40% 6(35%) 7(30%)

2(70%)

8(25%)

1(80%)

9(20%)

DEAD DIAL

Figure 6 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.

Figure 7

1.6.6 DRYER (DH304, DH300M, DH300E)
Dryer is used to prevent capillary blockage from moisture in the refrigerant system and H/E, condenser and evaporator. Also, dryer is used to remove corrosion of the components. Dryer NOTE: When dryer is replaced, proper injection to capillary is needed. On opening the dryer, it should be welded instantly. The oxidization of dryer inside and all tubes inside after welding can be prevented.

Figure 8

2. CIRCUIT DIAGRAM

MODEL : DH304, DH300M

NO. 11
DESCRIPTION POWER CORD ASSEMBLY SWITCH, ROCKER MOTOR ASSEMBLY PTC ASSEMBLY RE-COMPRESSOR, SET OLP PWB(PCB) ASSEMBLY, DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY, ROTARY SWITCH ASSEMBLY, MICRO PWB(PCB) ASSEMBLY, MAIN

PART NO.

DH304, DH300M 6411A20001Z 6600FX5001G 4681A20040J 6748C-0003D 2521C-A8626 6750C-0009E 6871A20289B 6877A30013L 6601A30001B 6600A30003C 6871A10142A
Q'TY REPER SET MARKS 1 S S S S S S S S S S S

S: SERVICE PARTS

A: ALTERNATE PARTS

N: NOT SERVICE PARTS

MODEL : DH300E
DESCRIPTION POWER CORD ASSEMBLY MOTOR ASSEMBLY PTC. ASSEMBLY RE-COMPRESSOR, SET OLP PWB(PCB) ASSEMBLY, DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY, MICRO PWB(PCB) ASSEMBLY, MAIN

DH300E 6411A20001Z 4681A20040J 6748C-0003D 2521C-A8626 6750C-0009E 6871A20482A 6877A30013L 6600A30003C 6871A10141A
Q'TY REPER SET MARKS 1 S S S S S S S S S

MODEL : DH400M/LD40

DESCRIPTION POWER CORD ASSEMBLY SWITCH, ROCKER MOTOR ASSEMBLY CAPACITOR COMPRESSOR (ROTARY), SET OLP (ASSEMBLY) PWB(PCB) ASSEMBLY, DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY, ROTARY SWITCH ASSEMBLY, MICRO PWB(PCB) ASSEMBLY, MAIN
PART NO. DH400M/LD40 6411A20001Z 6600FX5001G 4681A20040J 0CZZA20005N 2520UCAS003 6750U-L103A 6871A20289B 6877A30013M 6601A30001C 6600A30003C 6871A10142A
MODEL : GD40E/DH404E/DH400E/LD40E

DESCRIPTION

PART NO. GD40E/DH404E/DH400E LD40E 6411A20001Z 4681A20040J 0CZZA20005N 2520UCAS003 6750U-L013A 6871A20482A 6877A30013M 6600A30003C 6871A10141A
POWER CORD ASSEMBLY MOTOR ASSEMBLY CAPACITOR COMPRESSOR,SET OLP PWB(PCB) ASSEMBLY,DISPLAY SENSOR ASSEMBLY SWITCH ASSEMBLY,MICRO PWB(PCB) ASSEMBLY,MAIN
MODEL : DH504EL/LD50EL/LD65EL

NO. 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 A: ALTERNATE PARTS
PART NO. DH504EL/LD50EL 6411A20001Z 4681A20040J 0CZZA20001R 2520UCAA014 6750U-L058A 4681A20040K 0CZZA20005J 2520UCBA007 6750U-L048A LD65EL
Q'TY REPER SET MARKS S S S S S S S S S S
6871A20482A 6877A30013L 6600A30003C 6871A10141C 6421A20003V N: NOT SERVICE PARTS
3. DISASSEMBLY INSTRUCTIONS

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)

Figure 9

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)

Figure 11

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 control box. 6. Remove 1 screw that fasten control box and unhook control box from hook on the shroud. (See Figure 14)

Figure 13

Figure 21

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. Figure 22

Figure 23

3.2.9 SHROUD AND DRAIN 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 25) 6. Pull the drain pan backward then take it up from the base. (See Figure 25)

Figure 24

Figure 25 16

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 the H/E and open the H/E around 45 degree counterclockwise carefully. 5. Unbraze each of interconnecting 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)

Figure 26

Figure 27
3.3.2 PTC OR OVERLOAD PROTECTOR (OLP) FOR RECIPROCATING COMPRESSOR (DH304/DH300M/DH300E)
1. Discharge the refrigerant by using a refrigerant Recovery System. 2. After purging the unit completely, unbraze the suction and discharge tubes at the compressor connections. 3. Remove the screw or nut which fastens the terminal cover 4. Disconnect the lead wire from the overload protector or PTC assembly. 5. Remove the overload protector(OLP) or PTC assembly. (See Figure 29)

Figure 28

Using Recipro Compressor model Figure 29 Using Rotary Compressor models

3.3.3 COMPRESSOR

1. Discharge the refrigerant by using a refrigerant Recovery System. 2. After purging the unit completely, unbraze the suction and discharge tubes at the compressor connections. 3. Remove the nuts and washers which fasten the compressor. (See Figure 30) 4. Remove the compressor. (See Figure 30) Figure 30 17
3.4 HOW TO REPLACE THE REFRIGERATION SYSTEM
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. Evacuate as follows. 1) Connect the vacuum pump, as illustrated in Figure 31A. 2) Start the vacuum pump, slowly open manifold valves A and B two full turns counterclockwise and leave the valves open. The vacuum pump is now pulling through valves A and B to valve C by means of the manifold and entire system. CAUTION If high vacuum equipment is used, just crack valves A and B for a few minutes, then open slowly with the two full turns counterclockwise. This will keep oil from foaming and being drawn into the vacuum pump. 3) Operate the vacuum pump for 20 to 30 minutes, until 600 microns of vacuum are obtained. Close valves A and B, and observe vacuum gauge for a few minutes. A rise in pressure would indicate a possible leak or moisture remaining in the system. With valves A and B closed, stop the vacuum pump. 4) Remove the hose from the vacuum pump and place it on the charging cylinder. See Figure 31B. Open valve C. Discharge the line at the manifold connection. 5) The system is now ready for final charging. 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 the proper charge to enter the system. Valve B is still closed. 4) If more charge is required, the high-side will not take it. Close valve A. 5) With the unit running, open valve B and add the balance of the charge. a. Do not add the liquid refrigerant to the Lowside. b. Watch the Low-side gauge; allow pressure to rise to 30 lbs. c. Turn off valve B and allow pressure to drop. d. Repeat steps B and C until the balance of the charge is in the system. 6) When satisfied the unit is operating correctly, use the pinch-off tool with the unit still running and clamp on to the pinch-off tube. Using a tube cutter, cut the pinch-off tube about 2 inches from the pinch-off tool. Use sil-fos solder and solder pinch-off tube closed. Turn off the unit, allow it to set for a while, and then test the leakage of the pinch-off connection.

NOTE: REFRIGERANT R134a IS USED IN SOME MODELS. CHECK THE SPECIFICATION LABEL ON THE CABINET.
When discharging refrigerant R134a, purging instrument should be used only for R134a, without mixing that of refrigerant R22. When checking the leakage of refrigerant R134a, leakage test tool should be used only for R134a. The pump for discharging should be high efficiency. Final discharging value must be managed below 0.5 Torr. Maximum water should be less than 150mg in the cycleall tubes and H/E assembly-system. If water quantity is over 150mg, it causes acid or corrosion in the cycle system and the capillary tube to be clogged by water and harmful materials. Models charged with refrigerant R134a should be used dryer to prevent water from overflowing.
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.
EVAPORATOR ASSEMBLY (LOW PRESSURE SIDE) CONDENSER ASSEMBLY (HIGH PRESSURE SIDE) COMPOUND GAUGE

MANIFOLD GAUGE

CAPILLARY TUBE

SEE INSETS BELOW

COMPRESSOR
EXTERNAL VACUUM PUMP CHARGING CYLINDER
Figure 31A-Pulling Vacuum

Figure 31B-Charging

4. TROUBLESHOOTING GUIDE

CONDITION

1. Dehumidifier does not start. (Both compressor and fan motor do not operate.) No power Poor plug contact at outlet. Bucket is full. Humidity control is at Off position Wire disconnected or loose

REMEDY

Check power supply at outlet. Correct if none. Install plug properly or replace it. If Auto Shut Off lights, empty the bucket and replace properly. Turn the humidity control switch toward Max. Connect wire. Refer to wiring diagram for terminal identification. Repair or replace loose terminal. Test capacitor. Replace if not within 10% of manufacturer's rating. Replace if shorted, open, or damaged. It must be between 103.5V and 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 if the circuit is open. The Defrost Control senses frost build-up on the evaporator coil and automatically shuts off the compressor. The fan continues to run, drawing air across the coil, and melting the frost. When the coil is defrosted, the compressor automatically restarts, and dehumidifying resumes. Check the capacitor. Replace if not within 10% of manufacturer's rating. Replace if shorted, open, or damaged. Check the compressor for open circuit or ground. If open or grounded, replace the compressor. Check the compressor OLP if externally mounted. Replace if open. (If the compressor temperature is high, remove OLP, cool, and retest.) Check defrost control, replace it. Turn dehumidifier off. Move dehumidifier to obtain free and unobstructed air circulation. Clean evaporator and/or condenser assembly Clean it. Check Motor, repair or replace it.

Capacitor. (Discharge capacitor before testing.)
2. Motor runs but compressor does not run.
Voltage (115V 10%) Wiring

Rotary switch

Defrost control
Capacitor (Discharge capacitor before servicing.)

Compressor

Overload protector (OLP)
3. Does not defrost control. 4. Insufficient dehumidification
Defrost control is defective. Low relative humidity Poor air circulation H/E clogged with dust and dirt Air filter is dirty. Motor is not operating.

5. Noisy operating Fan

If cracked, out of balance, or partially missing, replace it Remove it. Adjust tubing routine carefully. Check Motor Mount. If loose, tighten 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 voltage. It must be between 103.5V and 126.5V volts. If intermittent, provide new supply. Move dehumidifier for free and unobstructed air flow. Clean dust or dirt on the Heat Exchange. If not running, determine the cause. Replace if required. Check PTC, Repair. Check electrical circuit. Repair. Allow 2 or 3 minutes for pressure to equalize before starting compressor. Test the capacitor. Check the terminals. If loose, repair or replace. Check the system for a restriction. Check compressor, replace compressor Check OLP, if externally mounted. Replace if open. (If the compressor temperature is high, remove the OLP, cool, and retest.)
Loose foreign material inside the housing. Tube hits frame. Fan blade hits frame Internal compressor noise. Loose set screws Worn bearings of Motor Assembly

6. Water drips

The bucket is not installed properly. Connection may be loose. Leak in bucket Water drips when bucket removed for emptying. Bucket overflows.
7. Compressor cycles on overload protector. (OLP)
High or low line voltage. (115V 10%)
Poor air circulation. Heat Exchange clogged with dust or dirt. Motor Bad PTC assembly (if assembled) Short circuit or ground in electrical circuit Unit pressures not equalized Capacitor Wiring Refrigeration system Stuck compressor Overload protector (OLP)

5. EXPLODED VIEWS

MODEL: DH304/DH300M

149980 268714

264110

130900 135312

249950

162615

266002 149410

238310

A Sh uto ut -O ff Hu m id ity Max Co nt ro l Fa n Sp ee d

268712 266003

436500 352113

235512

35211A

558511 752140

552111

330870

130411 667482

148390

144410

550140

554160

567502

MODEL: DH300E

238310 268712

152302 266011

130401

667482

MODEL: DH400M/LD40

149980 W0CZZ

268714

346811 435300

135312 162615

A Sh uto ut -O ff Hu m id ity Co

nt ro l

Fa n Sp ee d
235512 35211A 152302 266011

752140

130411
MODEL: GD40E/DH404E/DH400E/LD40E

35211A 152302 266011

552111 752140

330870 567502

130401 554160

MODEL: DH504EL/LD50EL

436500

552204

35211A 352113

MODEL: D65EL

352113 752140
6. REPLACEMENT PARTS LIST
LOCATION NO. 35211A PART NO. DESCRIPTION BASE ASSEMBLY CABINET FRONT GRILLE,ASSEMBLY DRAIN PAN ASSEMBLY TANK ASSEMBLY,BUCKET KNOB ASSEMBLY FILTER(MECH),AIR SENSOR ASEMBLY CONTROL BOX,ASSEMBLY POWER CORD,ASSEMBLY SWITCH,ROCKER SWITCH ASSEMBLY,ROTARY SWITCH ASSEMBLY,MICRO PWB(PCB)ASSEMBLY,DISPLAY PWB(PCB)ASSEMBLY,MAIN MOTOR ASSEMBLY TUBE ASSEMBLY,SUCTION TUBE ASSEMBLY,DISCHARGE TUBE ASSEMBLY,CAPILLARY EVAPORATOR,ASSEMBLY CONDENSOR ASSEMBLY DRIER ASSEMBLY COMPRESSOR ,SET FAN,TURBO OLP MOUNT,MOTOR PTC ASSEMBLY HANDLE CASTER ASSEMBLY,ROLLER ESCUTCHEON COVER ASSEMBLY,DISPLAY HOSE,CONNECTOR ISOLATOR,COMP SHROUD REAR GRILLE DH304/DH300M 3041A10042C 3090A10042A 3531A10285C 3087A10019B 4839A10002A 4941A30019B 5230A20040A 6877A30013L 4995A20359J 6411A20001Z 6600FX5001G 6601A30001B 6600A30003C 6871A20289B 6871A10142A 4681A20040J 5211A10464A 5211A11019A 5211A30720A 5421A10009P 5403A10008N 5851A30001A 2521C-A8626 5900A20007A 6750C-0009E 4960A20009B 6748C-0003D 3650A20004A 4441A30001B 3831A20079M 3551A20122A 5214A20027A 5040AR4195A 4998A10034A 3530A10193A REMARK
LOCATION NO. 346811 35211A PART NO. DESCRIPTION BASE ASSEMBLY CABINET FRONT GRILLE,ASSEMBLY DRAIN PAN ASSEMBLY TANK ASSEMBLY,BUCKET FILTER(MECH),AIR SENSOR ASEMBLY CONTROL BOX,ASSEMBLY POWER CORD,ASSEMBLY SWITCH ASSEMBLY,MICRO PWB(PCB)ASSEMBLY,DISPLAY PWB(PCB)ASSEMBLY,MAIN MOTOR ASSEMBLY TUBE ASSEMBLY,SUCTION TUBE ASSEMBLY,DISCHARGE TUBE ASSEMBLY,CAPILLARY EVAPORATOR,ASSEMBLY CONDENSOR ASSEMBLY DRIER ASSEMBLY COMPRESSOR ,SET FAN,TURBO OLP MOUNT,MOTOR PTC ASSEMBLY HANDLE CASTER ASSEMBLY,ROLLER ESCUTCHEON COVER ASSEMBLY,DISPLAY HOSE,CONNECTOR ISOLATOR,COMP SHROUD REAR GRILLE DH300E 3041A10042C 3090A10042A 3531A10254F 3087A10019B 4839A10002A 5230A20040A 6877A30013L 4995A20359G 6411A20001Z 6600A30003C 6871A20482A 6871A10141A 4681A20040J 5211A10464A 5211A11019A 5211A30720A 5421A10009P 5403A10008N 5851A30001A 2521C-A8626 5900A20007A 6750C-0009E 4960A20009B 6748C-0003D 3650A20004A 4441A30001B 3831A20079L 3551A20109B 5214A20027A 5040AR4195A 4998A10034A 3530A10193A REMARK

LOCATION NO. W0CZZ 35211A PART NO. DESCRIPTION BASE ASSEMBLY CABINET FRONT GRILLE,ASSEMBLY DRAIN PAN ASSEMBLY TANK ASSEMBLY,BUCKET KNOB ASSEMBLY FILTER(MECH),AIR SENSOR ASEMBLY CAPACITOR CONTROL BOX,ASSEMBLY POWER CORD,ASSEMBLY SWITCH,ROCKER SWITCH ASSEMBLY,ROTARY SWITCH ASSEMBLY,MICRO PWB(PCB)ASSEMBLY,DISPLAY PWB(PCB)ASSEMBLY,MAIN MOTOR ASSEMBLY 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 ISOLATOR,COMP SHROUD REAR GRILLE DH400M/LD40 3041A10042B 3090A10042A 3531A10285B / 3531A10254A 3087A10019A 4839A10002A 4941A30019B 5230A20040A 6877A30013M 0CZZA20005N 4995A20359H 6411A20001Z 6600FX5001G 6601A30001B 6600A30003C 6871A20289B 6871A10142A 4681A20040J 5211A10460A 5211A10463A 5211A31003B 5421A10009N 5403A10008M 2520UCAS003 5900A20007A 6750U-L103A 4960A20009B 3650A20004A 4441A30001B 3831A20079E/K 3551A20122A 5214A20027A 4830A30005A 4998A10034A 3530A10193A "E:Goldstar/K:LG" "B:LG/A:Goldstar" REMARK
LOCATION NO. 162615 W0CZZ 35211A PART NO. DESCRIPTION BASE ASSEMBLY CABINET FRONT GRILLE,ASSEMBLY DRAIN PAN ASSEMBLY TANK ASSEMBLY,BUCKET FILTER(MECH),AIR SENSOR ASEMBLY CAPACITOR CONTROL BOX,ASSEMBLY POWER CORD,ASSEMBLY SWITCH ASSEMBLY,MICRO PWB(PCB)ASSEMBLY,DISPLAY PWB(PCB)ASSEMBLY,MAIN MOTOR ASSEMBLY 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 ISOLATOR,COMP SHROUD REAR GRILLE GD40E/DH404E/DH400E/LD40E 3041A10042B 3090A10042A 3531A10254A/E 3087A10019A 4839A10002A 5230A20040A 6877A30013M 0CZZA20005N 4995A20359F 6411A20001Z 6600A30003C 6871A20482A 6871A10141A 4681A20040J 5211A10460A 5211A10463A 5211A31003B 5421A10009N 5403A10008M 2520UCAS003 5900A20007A 6750U-L103A 4960A20009B 3650A20004A 4441A30001B 3831A20079A/J 3551A20109B 5214A20027A 4830A30005A 4998A10034Y 3530A10193A "A:Goldstar/J:LG" "A:Goldstar/E:LG" REMARK
LOCATION NO. 162615 W0CZZ 35211A PART NO. DESCRIPTION BASE ASSEMBLY CABINET FRONT GRILLE,ASSEMBLY DRAIN PAN ASSEMBLY TANK ASSEMBLY,BUCKET FILTER(MECH),AIR SENSOR ASEMBLY CAPACITOR CONTROL BOX,ASSEMBLY POWER CORD,ASSEMBLY SWITCH ASSEMBLY,MICRO PWB(PCB)ASSEMBLY,DISPLAY PWB(PCB)ASSEMBLY,MAIN MOTOR ASSEMBLY TUBE ASSEMBLY,SUCTION TUBE ASSEMBLY,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 ISOLATOR,COMP SHROUD REAR GRILLE DH504EL/LD50EL 3041A10042A 3090A10042A 3531A10254A/E 3087A10019A 4839A10002A 5230A20040A 6877A30013L 0CZZA20001R 4995A20359E 6411A20001Z 6600A30003C 6871A20482A 6871A10141C 4681A20040J 5211A10428A 5211A11016A 6421A20003K 5421A10009J 5403A10008A 2520UCAA014 5900A20007A 6750U-L058A 4960A20009B 3650A20004A 4441A30001B 3831A20079A/J 3551A20109B 5214A20027A 4830A30005A 4998A10034A 3530A10193A "A:Goldstar/J:LG" "A:Goldstar/E:LG" REMARK

MODEL: LD65EL

LOCATION NO. 162615 W0CZZ 35211A PART NO. DESCRIPTION BASE ASSEMBLY CABINET FRONT GRILLE,ASSEMBLY DRAIN PAN ASSEMBLY TANK ASSEMBLY,BUCKET FILTER(MECH),AIR SENSOR ASEMBLY CAPACITOR CONTROL BOX,ASSEMBLY POWER CORD,ASSEMBLY SWITCH ASSEMBLY,MICRO PWB(PCB)ASSEMBLY,DISPLAY PWB(PCB)ASSEMBLY,MAIN MOTOR ASSEMBLY TUBE ASSEMBLY,SUCTION TUBE ASSEMBLY,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 ISOLATOR,COMP SHROUD REAR GRILLE LD65EL 3041A10042A 3090A10042A 3531A10254E 3087A10019A 4839A10002A 5230A20040A 6877A30013L 0CZZA20005J 4995A20359L 6411A20001Z 6600A30003C 6871A20482A 6871A10141C 4681A20040K 5211A10454A 5211A10455A 6421A20003K 5421A10009H 5403A10008L 2520UCBA007 5900A20007A 6750U-L048A 4960A20009B 3650A20004A 4441A30001B 3831A20079J 3551A20109B 5214A20027A 4830A30005A 4998A10034A 3530A10193A REMARK

P/No : 3828A31001A

January, 2004 Printed in China