Unique Klasse KUD-EC1278 Service Manual
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Unique Klasse KUD-EC1278 Service Manual

Drum washing machine
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Service Manual

Auto Washer / Dry
: KUD-EC1278
Model
MARCH 2007

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Summary of Contents for Unique Klasse KUD-EC1278

  • Page 1: Service Manual

    Service Manual Auto Washer / Dry : KUD-EC1278 Model MARCH 2007...

  • Page 2: Table Of Contents

    DRUM WASHING MACHINE SERVICE MANUAL 1. WHAT IS DRUM? ................2 2. SPECIFICATION OF DRUM WASHING MACHINE .....6 3. PARTS LIST FOR EACH ASSY ...........7 4. SEQUENCE CHART OF PCB.............22 5. TROUBLE SHOOTING ...............32 6. WIRING DIAGRAM ..............47 7. TROUBLE SHOOTING REGARDING DRAIN ......47 8.

  • Page 3: What Is Drum

    1. WHAT IS DRUM ? 1. WHAT IS DRUM WASHER? One of the famous washers in the globe which uses laundry falling energy. 2. Sales point of our washer The biggest capacity with compact size Environmently friendly washer with NANO technology •...
  • Page 4 3. THE DIRECT DRIVE SYSTEM OF DRUM WASHING MACHINE WASH DRUM DRAIN LIFTER PUMP BLDC (MOTOR) • DD CONTROL : DIRECT DRIVE SYSTEM • BLDC MOTOR...
  • Page 5 4. DRIVE SYSTEM 3. INLET PARTS • COLD : 3-WAY - COLD, PREWASH, DRY • COLD : 2-WAY - COLD, PREWASH 6. DRY PARTS • HEATER DRY : OPTION • BLOWER FAN • FAN MOTOR : BLDC • THERMISTOR • THERMOSTAT : FUSE, BI-METAL •...
  • Page 6 1. CONTROLLER • MAIN PCB • FRONT PCB • HARNESS • NOISE FILTER • POWER CORD : 15A 2. DRIVE PARTS • BLDC MOTOR • DRUM • BEARING • SPIDER/SHAFT • TUB • WEIGHT BALANCER 4. WASH HEATING • WASH HEATER : OPTION •...
  • Page 7 5. FUNCTION 2. INLET BOX AS - 3-WAY INLET VALVE 2. INLET BOX AS - 2-WAY INLET VALVE - INLET BOX 4. CABINET AS - 1-WAY INLET VALVE 7. DOCT AS 1. PANEL F ASSY -DUCT AS 3. CABINET F ASSY - DOOR AS 3.
  • Page 8 8. PLATE T AS 6. TUB ASSY - Parts For Driving (6-1) BLDC ROTOR BLDC MOTOR (6-2) BLDC STATOR (6-3) SHAFT (6-4) BEARING Parts For Transmitting (6-5) SPIDER (6-6) DRUM (6-7) TUB (6-8) BASE (6-6) (6-5) 6. TUB ASSY - DRUM AS (6-4) (6-3) (6-4)
  • Page 9 2. DRUM WASHING SPECIFICATION OF MACHINE 1. EXTERIOR DIAGRAM 1 PREMIUM TYPE PARTS NAME FRAME DOOR O DOOR GLASS PLATE DOOR GLASS BAND HANDLE DOOR UPPER HANDLE DOOR LOWER HANDLE DOOR COVER PANEL OUTER PANEL INNER PANEL PLATE BUTTON DIAL OUT BUTTON DIAL IN CASE HANDLE CASE HANDLE PLATE...

  • Page 10: Parts List For Each Assy

    3. PARTS LIST FOR EACH ASSY 1. PLATE T, PANEL LOWER AS 1 PREMIUM TYPE PARTS NAME PARTS CODE DESCRIPTION Q’TY REMARK PANEL OUTER 3614286100 HOLDER LED CUSTOM 3613052300 E110RP CASE PCB F 3611143600 HIPS PCB AS PRPSSW2D21 DWD-E110R FRONT PCB ASSY BUTTON DIAL AS 3616634700 130RP' S BUTTON DIAL AS...
  • Page 11 2. INLET BOX AS PARTS NAME PARTS CODE DESCRIPTION Q’TY REMARK INLETBOX 3617506200 PP, B110RN NOZZLE AS 3618104600 PP, TOP+UNDER CASE DETERGENT 3611143700 CAP SOFTENER 3610916600 CLAMP AS 3611203200 ID=60, WIRE+GUIDE+BOLT+NUT HOSE INLET 3613271000 EPDM HOSE A 3613266640 EPDM,ID=10,L=280MM,MAIN, B110RN HOSE B 3613266740 EPDM,ID=10,L=370MM,HOT, B110RN...
  • Page 12 3. CABINET F ASSY 1 PREMIUM TYPE...
  • Page 13 PARTS NAME PARTS CODE DESCRIPTION Q’TY REMARK CABINET F OUTER 3610812200 CABINET F INNER 3610812100 SECD 0.8T HINGE DOOR AS 3612903500 E110R PLATE HINGE SUPPORT 3614539400 SPG 2.0T SWITCH DOOR LOCK 3619047200 DL-S1.250V16A.BITRON FRAME DOOR O 3612207300 FRAME DOOR I 3612207400 DOOR GLASS PLATE 36117ABJ00...
  • Page 14 3. CABINET F ASSY 2 LUXURY TYPE...
  • Page 15 PARTS NAME PARTS CODE DESCRIPTION Q’TY REMARK CABINET F OUTER 3610812200 CABINET F INNER 3610812100 SECD 0.8T HINGE DOOR AS 3612903500 E110R PLATE HINGE SUPPORT 3614539400 SPG 2.0T SWITCH DOOR LOCK 3619047200 DL-S1.250V16A.BITRON FRAME DOOR O 3612207800 FRAME DOOR I 3612207400 DOOR PLATE GUIDE 36117ABL00...
  • Page 16 4. CABINET ASSY...
  • Page 17 PARTS NAME PARTS CODE DESCRIPTION Q’TY REMARK NOZZLE AIR 3618103110 PP, DWD-100DR FRAME TOP R 3612204300 GI, 1.6T, DWD-100DR FRAME TOP L 3612204900 1.6T, GI, DWD-100DR CABINET 3610810900 SGCD1,0.8*925.7*1922,PAINTING,DWD-110RP COVER BACK AS 3611425510 COVER BACK + PAD CABINET AS STOPPER SPRING 3615202200 POM, DWD-100DR FIXTURE PLATE...
  • Page 18 5. BASE U AS...
  • Page 19 PARTS NAME PARTS CODE DESCRIPTION Q’TY REMARK E01 CASE PCB MAIN 3611139300 HIPS E02 MAIN PCB AS 3610PCBE00 E110,112R' S MAIN PCB + HARNESS AS E03 UNIT FILTER(EMI K19) 3611908000 DWLF-K19,X0.47U.Y1000P.VAR471K.FUSE20A E04 BASE U 3610391910 PP, DWD-100DR E05 SUPPORTER LEG 3615303600 PO+ , 3.0T E06 FIXTURE LEG...
  • Page 20 6. TUB ASSY...
  • Page 21 PARTS NAME PARTS CODE DESCRIPTION Q’TY REMARK F01 BALANCER WEIGHT R/L AS 3616108200 E110R F02 PIPE JOINT 3614404900 F03 CLAMP (HOSE PIPE) 3611204300 ø14, MZFN F04 HOSE JOINT 3613266500 EPDM F05 GASKET 3612320700 EPDM F06 NOZZLE SHOWER 3618104000 F07 CLAMP GASKET AS 3611203600 GASKET F08 SPRING SUSPENSION F...
  • Page 22 7. DUCT B AS+DUCT PIPE AS...
  • Page 23 PARTS NAME PARTS CODE DESCRIPTION Q’TY REMARK UNIT FAN MOTOR 36189L3Z00 ISM-77806DWWA 24V,CW,8P,14W COVER DUCT 3611426600 PBT+GF30% DUCT B UPPER 361A201200 ALCOSTA 0.5T*228*449 CLAMP CORD 3611203310 DALE-3,A=12,B=4.4,L=126 FAN AS 3611885900 D133 FAN, GFPP30% <- NYLON66 SCREW TAPPING 7122400811 T2S TRS 4x8 WASHER PLAIN 7400432011 PW 4.3*20*1T...
  • Page 24 8. PLATE TOP ASSY PARTS NAME PARTS CODE DESCRIPTION Q’TY REMARK PLATE T 3614539500 SECD 1.2T LABEL CAUTION 3613553830 DRUM 11KG,DRY+WASH,KOR,PVC,95*143,SILK 2° LABEL INSTALL 3613555700 ART+OPP,WATER VALVE STICKER...

  • Page 25: Sequence Chart Of Pcb

    4. SEQUENCE CHART OF PCB 1. SEQUENCE CHART Normal Heavy Stain White Eco-White DIVISION Default Wash Temp Small Middle Middle Small Middle Small Middle 40degree 40degree 95degree 60degree Default Wash Temp Sensing 20sec Water Supply 2min Pre. Wash 10min Pre. 8min Wash Drain...
  • Page 26 Wool Anti- Blanket Quick 30 Drum Drying Small Wash Memory DIVISION Default Wash Temp Small Allergy Middle Middle High Small Default Wash Temp Cold Cold 30°C Cold 40°C Soak 30min Water Supply 2min 40min 35min 30min Washing 25min 20min 15min 10min 8min Drain...
  • Page 27 Eco-Steam Normal steam Strong Steam Cotton DIVISION Default Wash Temp Small Small Middle Middle Default Wash Temp 40°C Sensing 20sec Steam Water Supply 1min Steam Heating 20min 15min Steam Washing 10min 7min Finishing Water Supply 1min 30min Finishing Washing 10min 5min Soak 30min...
  • Page 28 2. Main function of PCB program 2-1. LOAD SENSING 1) Deciding the water level 1 Cotton, Whites, ECO-White course will be followed by this process. 2 Check the water level with dry laundry at the starting wash. 3 Check the water level by using motor output data during 20 sec, 65 rpm. 2) Deciding Spin Starting Step.
  • Page 29 2-3. DOOR S/W 1) The working principle of Door S/W 1 Door Locking Bimetal on ( 3 sec) --> solenoid (supply 20msec pulse 2 times) 2 Door Unlocking Bimetal off --> solenoid (supply 20msec pulse, until unlock) 3 After door locking, all parts can work normally. 4 After pressing power button, if the temperature of wash thermistor is over 50°C or the water level is over the safety level, the door will be locked.
  • Page 30 2) DOOR OPEN SYSTEM 1If add the laundry during washing, press the door unlock button. 2Door open sequence at abnormal condition. start / hold door unlock button, 2sec.ON water level is drain less than safety level? fan motor on/ Temperature is cold water supply less than 50°C? Display <LOCK>...
  • Page 31 2-4. Child Lock 1 Press the “TEMP”. and “DRY” button simultaneously during processing. 2 Under the Child Lock function, only power button is working. 3 During Child Lock function, CHL will be displayed on PCB. 4 In order to unlock Child Lock mode, press "TEMP" and "DRY" simultaneously. 2-5.
  • Page 32 3. Convenience service functions(test mode) 1. Testing Mode PCB and other electronic parts will be tested without water supply whether they are normal or not. 1) Process : press power button --> press "SPIN" button 3 times with pressing "WASH" button --> 'L d' will be shown on LED -- >...

  • Page 33: Error Display

    4. ERROR DISPLAY MESSAGE ERROR CAUSE SOLUTION The water tap is closed. Open the water tap. The filter of the valve inlet is clogged. Clean the filter of the valve inlet. The valve inlet is an inferior product or broke down. Change the valve inlet.
  • Page 34 MESSAGE ERROR CAUSE SOLUTION The thermistor dry is an inferior product or broke down. Change the thermistor dry. THERMISTOR The thermistor dry is not connected normally. Check the connector of the thermistor dry. (TEMP. SENSOR) DRY ERROR The thermistor wash is an inferior product or broke down. Change the thermistor wash.

  • Page 35: Trouble Shooting

    5. TROUBLE SHOOTING 1) VALVE INLET TROUBLE SITUATION CAUSE CHECK POINT SOLUTION ERROR MODE WATER IS NO WATER closed water tap check the water tap opened Open the water tap "IE" SUPPLIED SUPPLY WITH coil short check the resistance 4320~5280Ω "IE"...
  • Page 36 2) PRESSURE SWITCH TROUBLE SITUATION CAUSE CHECK POINT SOLUTION ERROR MODE continuously inlet valve is normal, bellows problem frequency Check : refer to below change the "E2" water supply but continuous water pressure switch supply hose problem frequency Check : refer to below change the hose "E2"...
  • Page 37 3) DOOR LOCK SWITCH 1) CLASS Failure Details Cause Diagnosis of Failure Solution Status ERROR MODE "Tick" Tick Sound happens Normal Sound When Door is locked/unlocked, this Solenoid Working Sound sound is heard. "LE" Error "LE" with tick sound Connector slipped out check the joining status of Assemble Connector "LE"...
  • Page 38 2. Checking method of DOOR LOCK SWITCH Between No. 3 & No.4 2 3 4 5 : if 156 ~ 234Ω, it is normal array (No no.1) 3. Checking method of DOOR LOCK SWITCH Between Viloet and Blue wire : If 156 ~ 234Ω, it is normal...
  • Page 39 4) HEATER Failure Cause Diagnosis of Failure Solution Status Error Mode Can not Wiring Disconnection Check whether disconnected or not : See Fig. A Connecting the "H6" heat disconnecting point water Heater Wash Check whether disconnected or not : if normal, the Replacing Heater Wash "H6"...
  • Page 40 * Replaceing method of Heater and Temp. Sensor 1. Disassemble Connector 2. Disassemble EARTH and NUT for fixing heater 3. Replace heater & sensor 4. Assemble in the reverse order. Be sure to assemble in the order : Nut for heater-Nut for EARTH. Division Parts Name DUCT COVER...
  • Page 41 5) MOTOR 1) BLDC MOTOR Rotor Insulator Core Insulator BLDC MOTOR 2) Driving mechanism of BLDC MOTOR Magnetic density flow of BLDC Motor Sequence diagram of BLDC MOTOR electromagnet generating high power by rotator (a permanent magnet) and stator (multiple coils)
  • Page 42 6) DRY SYSTEM(OPTION) 1) DRY SYSTEM Division Parts Name DUCT COVER FAN MOTOR HEATER DRY DUCT B LOWER VALVE INLET(DRY) THERMOSTAT(Bimetal) THERMISTOR(Temperature Sensor) DUCT B UPPER FAN AS FUSE TEMPERATURE...
  • Page 43 2) DRY FUNCTION DIAGRAM T : Thermistor (CONTROL DRY DUCT HEATER’S TEMPERATURE ) HEATER FAN MOTOR WATER SUPPLY CONDENSING DRUM DUCT DRAIN HOUSING While rotating DRUM, DRY HEATER applice heat to air and FAN blows it into DRUM evaporating water in the laundry. •...
  • Page 44 4) DRY COURSE COURSE DRY COURSE Heater control temperature is 60°C On/70°C Off LOW TEMP. Drying Time is 120/180min according to Load Sensing Data Heater control temperature is 60°C On/70°C Off, with good condition for ironing IRON Drying Time is 70/130min according to Load Sensing Data Heater control temperature is 100°C On/110°C Off, drying time is 166 min Cupboard Drying Time is 150/210min according to Load Sensing Data...
  • Page 45 5) TROUBLE SHOOTING OF DRY SYSTEM HEATER DRY Function : heating the air during dry • FAILURE MODE : * "H7" - The air cannot be heated to 10°C during 2 min. • CHECKING METHOD : * Check the resistance of heater coil and replace with new one. Thermistor Function : sensing the air temperature.
  • Page 46 SWITCH THERMOSTAT(BIMETAL) function : control the duct temperature, if the temp reached over 150°C, all power supply will be cut. and if the temp go down 120°C the power will be ON. protecting overheating by cutting off heater power supply if the temperature rises over 150°C, and reoperating heater by connecting heater power supply if the temperature falls under 120°C.
  • Page 47 6) LACK OF DRY PERFORMANCE • Situation : after drying, the clothes still get wet. cause) The laurdry amount is more than the recommendation capacity 7.0kg. Condensing cold water is not supplied. Clogging Bellows Duct results in poor air circulation. checking method) part name checking point...
  • Page 48 • Situation : PCB shows "H7". cause) Dry heater is cut-off. Fuse temp. is cut-off. repaire method) replace the Dry heater. replace the Fuse temp. checking point part name checking results repaire method HEATER dry Heater is short or cut-off. replace the FUSE TEMPERATURE...
  • Page 49 • situation : PCB shows "E3". cause) FAN MOTOR can not work. countermeasures) Replace the Fan Motor. part name checking results repair method disassemble process of Fan Motor 1Disassemble Duct Cover As from Duct B As FAN MOTOR fan motor failure replace fan motor (Screw 4EA)

  • Page 50: Wiring Diagram

    6. WIRING DIAGRAM DOUBLE VALVE, BUBBLE (OPTION) (OPTION) DRAIN PUMP DRAIN MOTOR 7. TROUBLE SHOOTING REGARDING DRAIN Checking Methods • Situation : * "OE" is shown on PCB. * Not finishing drain during 10 min. * The water level can not reach to RESET POINT during 10 min of drain. Checking Methods Replacing methods * Check the hose drain O condition;...

  • Page 51: Installation Guide

    8. INSTALLATION GUIDE 1. PARTS & CONFIGURATION FIGURES PARTS NAME REMARKS FIXTURE UP/DOWN AS SPECIAL SCREW UP : L= 109mm SPECIAL SCREW DOWN :L=145mm SPECIAL SCREW FIXTURE UP FIXTURE SPECIAL DOWN SCREW DOWN 1Use this part to remove UNIT SERVICE WRENCH FIXTURE UP/ DOWN.
  • Page 52 3Please install the DRUM WASHING MACHINE properly on even and hard floor as below. 4Adjust the level of washer using LEG ADJUST AS. Adjusting Method Remarks If turned CW, the LEG ADJUST AS moves the washer upward. If turned CCW, the LEG ADJUST AS moves the washer downward.

  • Page 53: Attention Point With Servicing

    9. ATTENTION POINT WITH SERVICING Item Part Name Checking Point 1 Replacing Thermistor Thermistor Dry Keep the Packing from seperating (Hold Packing when replacing) Keep the Packing from folding 2 Replacing Duct B As DUCT B AS & Check the sealing between Duct Pipe & Duct B AS &...

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