Samsung DV400EWHD Series Service Manual
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Samsung DV400EWHD Series Service Manual

Clothes dryer
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SERVICE
CLOTHES DRYER
CLOTHES DRYER
Basic Model
:
DV400EWHD**
(HUDSON DRYER PROJECT)
Model Name
:
DV45H7000E*
(DV-7000HA DRYER PROJECT)
Model Code
:
DV45H7000EW/A2
Manual
1. Safety Instructions
2. Features and Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PBA diagram
6. Wiring diagram
7. Reference information
CONTENTS

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Summary of Contents for Samsung DV400EWHD Series

  • Page 1 CLOTHES DRYER Basic Model DV400EWHD** (HUDSON DRYER PROJECT) Model Name DV45H7000E* (DV-7000HA DRYER PROJECT) Model Code DV45H7000EW/A2 SERVICE Manual CLOTHES DRYER CONTENTS 1. Safety Instructions 2. Features and Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PBA diagram 6. Wiring diagram 7. Reference information...

  • Page 2: Table Of Contents

    Contents 1. Safety Instructions ..............1 1-1.

  • Page 3: Safety Instructions

    1. SAFETY INSTRUCTIONS 1-1. CAUTION FOR SAFETY DURING SERVICING 1. Do not allow the customer to repair the product. The person may be injured or the product life may be shortened. 2. Execute A/S after unplugging the power supply unit. Be careful of the electric shocks.

  • Page 4: Important Safety Information

    1-2. IMPORTANT SAFETY INFORMATION To avoid risk of fire, electric shock, serious injury, or death when using your dryer, follow these basic precautions: 1. Read all instructions before using the dryer. 2. Install dryer according to Installation Instructions. Refer to the Grounding Instructions in the Installation Instructions for proper grounding of the dryer. 3. Do not dry articles that have been cleaned in, washed in, soaked in, or spotted with gasoline, drycleaning solvents, or other flammable or explosive substances. Vapors could ignite or explode.
  • Page 5 22. Never operate the dryer with the guards and/or the panels removed. 23. Do not operate the dryer with missing or broken parts. 24. Do not bypass safety devices. 25. Keep area around the exhaust opening and adjacent surrounding areas free from accumulation of lint, dust, and dirt. 26. Interior of dryer and exhaust duct should be cleaned periodically by qualified service personnel.
  • Page 6 ■ Gas dryer power supply This equipment MUST be grounded. In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the electrical current. This unit is equipped with a cord having a grounding wire with a grounding plug. The plug must be plugged into an outlet that is properly installed and grounded. Consult a qualified electrician or servicer if grounding instructions are not completely understood, or if doubt exists as to whether the equipment is properly grounded. Do not use an extension cord. If the product power cord is too short, have a qualified electrician install a three slot receptacle. This unit should be plugged into a separate 60 hertz circuit with the electrical rating as shown on the serial plate.

  • Page 7: Features And Specifications

    Time Saving clothes in less time. Giving you time for more important things in life. Samsung dryers are super energy efficient, that you can dry up to 3.09 pounds Energy Saving of laundry with 1kWh. Also, both the large capacity and Fuzzy Logic Control save energy by automatically drying your clothes the most efficient way.

  • Page 8: Specifications

    2-2. speciFications Model name DV45H7000EW/A2 type Front loading dryer A: High 43.86" (111.4cm) B: Width 27" (68.6cm) Dimension C: Depth with door 49.80" (126.5cm) open 90° D: Depth 29.96" (76.1cm) Weight 55kg (121.3 lb) Heater rating 5,300W 6 _ Features and Specifications...

  • Page 9: Comparing Specifications With Existing Models

    2-3. CoMpARing SpECiFiCATionS WiTH ExiSTing MoDELS project DV-7000HA dry HUDSon Dry Model name DV45H7000EW/A2 DV400EWHDWR/AA Image Capacity (cu.ft / DOE) Dryer type Electric Electric Matching Washer WA45H* WA400* NUMBER OF DRYING CYCLE Normal Heavy Duty Towels Sensor Dry Perm Press Delicates Sanitize Cycle Selection...

  • Page 10: Options Specifications

    2-4. options speciFications item Code Remarks MANUAL-BOOK DC68-03170J Default Inlay-Holder Glass DC64-02819A Default 8 _ Features and Specifications...

  • Page 11: Disassembly And Reassembly

    3. Disassembly anD Reassembly 3-1. Tools foR Disassembly anD Reassembly Tool Type Remarks 14 mm Fan (1) Socket set with 6” extention 17 mm Roller Shaft (4) Wrench 8 mm Tool to fix the Roller Shaft on removing the nuts. Tool to protect the idle and abrasion of the bolt Vice pliers for the box driver.

  • Page 12: Standard Disassembly Drawings

    3-2. sTanDaRD Disassembly DRawings To avoid risk of electrical shock, personal injury or death, disconnect the power to the Clothes Dryer. ► This is a standard disassembly diagram and may differ from the actual product. Use this material as a reference when disassembling and reassembling the product. Part figure Description...
  • Page 13 Part figure Description 1. Remove the Panel Control. 2. Separate 4 Hook From the Guide PCB. main PCb Removal 3. Remove the Housings. 4. Remove 1 Screw from the Top Cover. 1. Disconnect the power supply to the unit. 2. Remove the Panel Control and the Main PCB. 3.
  • Page 14 Part figure Description 1. Unplug the power cord. 2. Remove the four hinge screws from the door. 3. Remove the door by lifting it. 4. Remove the two screws from the holder-lever, and then remove the cover-holder. 5. Assemble the holder-lever on the opposite side using the screws that were removed from the holder-lever-in Step 4.
  • Page 15 Part figure Description 10. Remove the holder-glass. 11. Exchange the positions of: : The cover-hinge and handle door : The holder-hinge and guiderholder glass 12. Remove the Lever-Door, Cover-Lever (DV400 Only) and then install it on the opposite side. : DV456 & DV422 Refer Figure. 1 : DV400 Refer Figure.
  • Page 16 Part figure Description 1. Disconnect the power supply to the unit. 2. Remove the Panel Control, the Main PCB and the Cover Top. 3. Remove 3 screws from the Frame Front. When 1 screws of the top portion work because was added newly, keep in mind.
  • Page 17 Part figure Description [Method of Door S/W disjointing] 1. After separate Holder Wire in Door S/W, Door S/W Hook Press and is Pull to Frame Front whole surface. frame front Removal 2. Pulls Door S/W to direction in 5 o’clock and separates Door S/W left part.
  • Page 18 Part figure Description 1. Disconnect the power supply to the unit. 2. Remove the Panel Control, the Main PCB, the Cover Top and the Frame Front. 3. Disconnect Interior Light wiring Harness. (DV456 Only) 4. Remove the four Bracket Drum Front 5 screws. 5.
  • Page 19 Part figure Description 9. Remove the Duct Outlet. 10. Remove 3 screws from the Case Filter(F). 11. Remove 1 screw from the Case Filter(B). Make sure the Filter does not get damaged by the Roller. Drum front Removal 12. Remove the Case Filter(B/F). 13.
  • Page 20 Part figure Description 1. Disconnect the Power Supply to the unit. 2. Remove the Panel Control, the Main PCB, the Cover Top, the Frame Front and the Drum Front. 3. Remove Belt. Drum Removal 4. Remove the Drum. When reassemble the belt, make it located middle of the Drum.
  • Page 21 Part figure Description 1. Disconnect the power supply to the unit. 2. Remove the Panel Control, the Main PCB, the Cover Top, the Frame Front, the Drum Front and the Drum. 3. Removal 6 Housing Heater-Terminals. 4. Remove 1 screw from the Heater. Heater Removal 5.
  • Page 22 Part figure Description 1. Disconnect the power supply to the unit. 2. Remove the Panel Control, the Main PCB, the Cover Top, the Frame Front, the Drum Front and the Drum. 3. Remove 2 screws from the Duct Connector. 4. Remove 1 Housing Motor. assy motor Removal (Continued) 5.
  • Page 23 Part figure Description 8. Separate the Motor Assy at the Bottom Plate. 9. Remove 1 Nut Fan. CW to remove. CCW to assemble. 10. Remove the Fan. assy motor Removal (Continued) 11. Remove 3 screws from the Cover-Duct Fan. 12. Remove the 2 Spring Plate. 13.
  • Page 24 Part figure Description 14. Remove the Holder Shaft. assy motor Removal 15. Remove the Roller-Idler. 22 _ Disassembly and Reassembly...
  • Page 25 Part figure Description 1. Disconnect the Power Supply to the unit. 2. Remove the Panel Control, the Main PCB, the Top. Cover, the Frame Front, the Drum Front and the Drum. 3. Remove 7 screws from the Drum Back. 4. Separate the wire in the Wire Holder. Drum back Removal 5.
  • Page 26 Part figure Description 1. Disconnect the power supply to the unit. 2. Remove 1 screws from the Back-Cover. Duct exhaust Removal 3. Remove 1 screw from the Duct-Exhaust. In case the screws for fixing a power code are dropped into the dryer, after removing Duct Exhaust, you can put it out through the hole.

  • Page 27: Troubleshooting

    4. TroubleshooTing 4-1. error iTems and diagnosTic codes An occurrence of an Error will make a sound of error melody for 5sec and continuously show one of the Error Displays from the following errors. error display Trigger action Taken Check for : Clogged lint screen.

  • Page 28: Test Mode

    4-2. TesT mode continuous run mode ● Power On state mixed load bell + Continuous Run Mode (Normal user mode) dry level 7 sec continuous run mode : 1. Press Mixed Load Bell + Dry Level for 7 sec during Power On State (Normal User Mode) . 2.
  • Page 29 ● System Check Mode Power Off state dry level + Power Key System Check Mode (Normal user mode) Definition of Service Mode : • - “ t2 ” will display. • System Check Mode(t2 mode) Progress Function Performed Start/Pause Motor(CW) Relay On → Heater Relay On → Heater Relay Off, Motor(CW) Relay Off how to enter : • While in Power Off, pressing the Dry Level + Power keys simultaneously will put the dryer into the System Check mode. 4-3. Trouble diagnosis As the micom dry machine is configured for the complicate structure, there might be a service call. The below information is prepared for exact trouble diagnosis and suitable repair guide. ● Caution for the repair and replacement Please follow below instruction for the trouble diagnosis and parts replacement.
  • Page 30 Problem What to do Is the belt connected well? Is the winding of the motor continuous? (Rotor winding, stator winding, generator) Blows fuses or trips circuit breaker Is the motor protector normal? • If above points are not found, the PCB assembly is out of order. Replace it. • During ignition the dryer will draw 6 amps. With the burner ON, the dryer will draw 4.5 amps. If the dryer is drawing amperages above this, then the house wiring, fuse box or circuit breaker is suspected to be at fault.

  • Page 31: Symptoms, Diagnoses And Actions

    4-4. symPToms, diagnoses and acTions ● The power does not work. Set the input AC voltage. Neutral (Check AC 120/240V) Is the input AC Earth voltage normal? 120V 240V Directly connect the terminal block. Neutral (Connect in the order of Live 2, Neutral, Is the terminal block Live 1) connection normal?
  • Page 32 ● The drum does not work. Press the Start button. (Start/Pause is repeated) Is the Start button Close the door. (Check whether the door S/W is pressed) Is the door closed properly? Check the wire connection of the power supply. Is the connection to the door S/W (Check the contact point and connected...
  • Page 33 ● The clothes are not dried. Install the vent so that it is not blocked to the outside. (Check the exhaust hole) Is the vent properly installed? Clean the filter. (Check if there are any alien particles in Did you clean the the filter) filter before drying? Connect the terminal block properly.
  • Page 34 ● The lamp does not work. Replace the door S/W. (Door operation of door S/W) Is the door S/W structurally on/off? Connect the power properly. (Check the connection between terminal Is the power block and door S/W) connection normal? Replace the lamp. (Check for disconnection of lamp and socket) Is the lamp normal? Check if the input voltage is...
  • Page 35 There is an abnormal noise in the dryer. Reassemble the door seal. Do you hear a (Check the assembled condition of the door whistling sound from seal and check the door lever) the door seal? 1. Check the roller. (Check the roller that supports the drum Does the noise come and rotates) from the drum?

  • Page 36: Component Testing Procedures

    4-5. comPonenT TesTing Procedures Warning To avoid risk of electrical shock, personal injury or death; disconnect power to dryer before servicing, unless testing requires power. ● Component electrical testing (with ohmmeter) • Thermistor resistance 10K Ω at 25°C 77°F • Thermostat 1 resistance < 1Ω Thermistor Thermostat 1 85 °C, 25A thermal cut-off • Thermostat 3 resistance < 1Ω THERMOSTAT 2 - If resistance is infinity, replace thermostat 3. • Thermostat 2 resistance < 1Ω - If resistance is infinity, replace thermostat 2. • Heater resistance 10 Ω HEATER - If resistance is infinity, replace Heater. THERMOSTAT 3 • Measure resistance of the following terminal 1.
  • Page 37 ● Centrifugal Switch (Motor) 3.05Ω between Pin# 3 and 4 3.35Ω between Pin# 4 and 5 ● gas model Radiant Sensor(10RS) • Resistance value < 1 Ω • If resistance is infinite, replace Radiant sensor 120V Igniter(101D) • Resistance value 40~400 Ω • If resistance is infinite, replace Igniter 120V 4.5A Gas Valve(25M01A) • Valve 1-2 : Resistance value 1,365Ω • Valve 1-3 : Resistance value 560Ω • Valve 4-5 : Resistance value 1,325Ω • If resistance is infinity, replace Valve 120V 60 Hz, 120A Thermostat (60T21 Hi-Limit)230F-50F • Resistance value < 1 Ω...
  • Page 38 ● Sensor Bars & temperature sensor check sensor bars Disconnect harness and test Pink wire Pin 4 to Orange wire Pin 5. • Approx ∞Ω without laundry • Approx 190Ω ± 10% with wet clothes Cycling thermistor Disconnect harness and test Blue wire Pin 3 to Red wire Pin 6. • Approx 10 KΩ at 25 °C/77 °F Troubleshooting _ 37...

  • Page 39: Pba Diagram

    5. PBA DiAgrAm 5-1. mAin PBA ► This Document can not be used without Samsung’s authorization. Location Part no. Function Location Part no. Function AC CONNECTION Connects the temperature sensor in order to detect the SENSOR CONNECTION Supplies AC power to the PBA CONNECTOR CONNECTOR temperature of the heater. SUB PBA COMMUNICATION The connector that controls communications with the Sub PBA SET GROUND CONNECTION The connector connecting the Dryer Set and the ground of the corresponding to the Display. CONNECTOR CONNECTOR MICOM FLASH CONNECTOR The connector that writes software onto the MICOM. HEATER1 OPERATION RELAY The relay that turns the Heater1 on and off. PBA Diagram _ 37...

  • Page 40: Detailed Descriptions Of Contact Terminals (Main Pba)

    5-2. DetAiLeD DescriPtions oF contAct terminALs (mAin PBA) ► This Document can not be used without Samsung’s authorization. ► CN3 1. 5V ► CN2 2. SO 1. Communications Port(Rx) 3. SI 2. Communications Port(Tx) 4. RESET ► CN1 3. SUB RESET 5. CLOCK 1. AC Power Port 4. 5V 6. FLMDO 2. Door Detection Sensor 5.

  • Page 41: Sub Pba

    5-3. suB PBA ► This Document can not be used without Samsung’s authorization. Location Part no. Function Description MCU CN11 Connect Main PBA Receives power from the Main PBA and provides a communications function. BUZZER Generates sound when the Menu key is pressed, the Encoder operates and the menu is closed. Connect Lamp PBA Diagram _ 39...

  • Page 42: Detailed Descriptions Of Contact Terminals (Sub Pba)

    5-4. DetAiLeD DescriPtions oF contAct terminALs (suB PBA) ► CN11_MCU ► CN14 1. Communications Port(Tx) 1. 12V 2. Communications Port(Rt) 2. GROUND 3. Outputs the Reset Signal ► CN1 3. SDA 1. 12V 4. 5V 4. SCL 2. Empty Pin 5.

  • Page 43: Wiring Diagram

    6. Wiring Diagram 6-1. Wiring Diagram (ELECTriC DrYEr) ► This Document can not be used without Samsung’s authorization. ● reference information BLACK BLUE GREEN GRAY NATURAL ORANGE PINK SKYBLU SKYBLUE VIOLET WHITE YELLOW Wiring Diagram _ 41...

  • Page 44: Reference

    7. RefeRence 7-1. Model nuMbeR naMing Rules 42 _ Reference...
  • Page 45 This Service Manual is a property of Samsung Electronics Co.,Ltd. © 2014 Samsung Electronics Co.,Ltd. All Any unauthorized use of Manual can be punished under applicable rights reserved. International and/or domestic law. 21 JAN. 2014...

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