Fast Track Troubleshooting
Contents
1. indicate a connector 50 Connector CN4 Pin 1 Org CN4 Pin 3 Gray 25VDC Door Open OVDC Door Closed Operating Resistance with power off 24 Water Level Sensor Check DD S 1 2 Voltage Connector CN 7 Pin 6 Pink CN7 Pin EMEN voltage at no water in the NT Resistance Power 5 Orange And Connector CN 7 Pin 7 Violet and drum off CN7 Pin 5 Orange Resistance Connector CN 7 Pin 6 Pink and CN7 PUDE l 22 240 Pin 7 Violet Hall 2 Check Test 1 Test 2 CN6 Pin 4 Orange and Pin 2 Red ad Manually spin the drum to see the volt ditionally Pin 4 Orange and Pin 3 blue age change Power On OVdcor3 75Vdc OVdcor3 75Vdc 3 5Vdc Connector CN5 Pin 1 Pin 2 White and Pin Power Off 11 5O across Pins 1 2 Pins 1 N A 3 Red 3 amp Pins 2 3 Connector CN 2 Pins 1 Black and 2 Yellow Power On 120VAC tsWF438 RevG 02 25 2011 3 Door Lock Check Connector CN2 Pin 3 Gray and CN3 Pin 1 Black Door Unlock Check Connector CN 2 Pin 3 Gray and CN3 Pin 2 White Test 1 When Door is Locked or Unlocked there is a pulse of 120VAC for a few milliseconds Test 1 When Door is Locked or Unlocked there is a pulse of 120VAC for a few Test 2 With Power Off the resistance be tween these pins will be between 47 570 Test 2 With Power Off the resistance be tween these pins will be bet2. Fase 1 75 1776 2 IMPORTANT SAFETY NOTICE For Technicians Only This service data sheet is intended for use by persons having electrical electronic and mechanical experience and knowledge at a level generally considered acceptable in the appliance repair trade Any attempt to repair a major appliance may result in personal injury and property damage The manufacturer or seller cannot be responsible nor assume any liability for injury or damage of any kind arising from the use of this data sheet Training Plus One http my plus1solutions net clientPortals samsung Help GSPN http service samsungportal com Samsung Product Support TV http support us samsung com spstv howto jsp Customer information videos and chat programs Programs for Fridges Laundry Ranges amp D W Model WF438AAR XAA 00 92 Heavy Duty Whites Perm Press Sanitize Towels Bedding DEEP STEAM S Delicates Quick Wash Rinse Spin Spin Only Quick Test Mode Note This test erases all faults and memory To enter press Soil Signal amp Power simultaneously with the power off B 1 All LED s light up and the washer beeps as it enters the Quick Test Mode 2 The unit displays the software version for a second then clears the EEprom 3 After the displaying the software version LCD Will display Model information If EEEE is displayed the PCB ass y is defective 4 When the version is displaye
3. E gt gt 9117119 wu 02650602234 Location considerations Do not install your washer in areas where It is normal for some water to remain in water may freeze since the Detergent Drawer after it completes your washer will washing Bleach is usually flushed out always maintain some into the tub at the beginning of the wash water in its water valve ing Also its compartment is washed pump and hose areas again during the following rinse cycle This EAR cause removing any remnants damage the belts the Laundry Touch Up Paints pump hoses and other TOUCH UP PAINT BLUE ONYX DH81 11980A components Operating TOUCH UP PAINT IMPERIAL SILVER DH81 11981A temperature should be TOUCH UP PAINT NEAT WHITE DH81 11982A above 60 F 16 C TOUCH UP PAINT STRATUS GRAY DH81 11983A TOUCH UP PAINT TANGO RED DH81 11984A 9 9 9 Selecting Language 1 The Select the Language message appears 2 Turn the Jog Dial to select language 3 Press Signal button to select NOTICE The unit sometimes will pause during Sanitize or Pure Cycle wash modes and appear not to be functional The Sani tize and Pure Cycle wash cycles have target temperatures to assure washer performance If the water temperature doesn t meet the target temperature during the wash cycle the washer will automatically add extra time to allow the heater to bring the water up to the programmed or target temperature In this stage th
4. Check the water valve wiring harness Water Supply Check whether the water supply valve is clogged with foreign ma Low Water Pressure terial and whether water is supplied properly Error Check for reversed fill hoses Check water temperature if sensed as higher than 50 C in the Wool or Lingerie cycle it will create error Check the relays if they operate correctly replace the Main PCB Fill Hoses Reversed nF1 Correct Hot Cold hose connections oystem Error SF1 Replace PCB SF2 SF3 4 tsWF438 RevG 02 25 2011 LED LCD Check for Foreign material entering the pump or hoses Drain Error nD 4 Check to make sure the wiring harness is connected properly No Draining Check the water pump terminal Check for freezing Make sure to check the operating voltage An error occurs when Power Error 2E under or over voltage is supplied Check whether a plug recepta 91 is dcin Voltage cle is used When the connecting wires are too small extension 92 Detecte cord use a momentary low voltage may drop up to 10 V Main PBA fault Sometimes e er ane Check the wire connections and terminal contacts between the sub Communica Error and main PBAs tion Error Electronic Control Check for disconnected wires Problem Check whether the sub PCB is short circuited because of moisture If the main PCB s communication circuit is faulty replace it EEPROM 11 Go to EEPROM Clear Mode If displ
5. N GREEN 5 ull N BROAN nt ORI AT Li tsWF438 RevG 02 25 2011 Washer Connector Checks WF438 CN7 4 Water Temp Thermistor Yel 5 Water Temp Thermistor Gnd Org CN3 1 Door Lock Close 2 Door Lock Open Wht 3 Drain Pump Vio 4 Steam Valve Brn CN4 1 Door Sw Org 3 Door Sw Gry 6 Water Level Sensor Pnk 7 Water Level Sensor Vio 7 AG Sensor Brn 8 AG Sensor Yel 5 Bleach Valve Pnk 6 Circulation Pump Gry 7 Pre Valve Yel 8 Main Valve Blu 9 Hot Valve Red CN8 Display Connector 1 T Comm Port Blu 2 R Comm Port Wht 3 Rest Signal Yel 4 Ground Org 5 5 vdc Pnk 6 15 vdc Red CN2 1 AC Pwr L 2 Pwr Sw Yel de WE 3 Valves Common Lock Sw Gry CN6 Hull Sensor IE l 1 5 vdc Pnk CN1 TR rom 2 Sensor Signal Red 1 Reactor Connector Port Red mer aaa ws IE 3 Sensor Signal Blu 2 Reactor Connector Port Red Jt 4 Ground Org CNS RY2 Washer Heater Relay 1 Motor Pwr U Phase Blu 1 2 Motor Pwr V Phase Wht 2 Red 3 Motor Pwr W Phase Red RY4 Steam Heater Relay 1 Wht 2 BIk RY1 Power Relay 1 Blu 2 Wht Water Temperature Thermistor Check 555 555 1 I 2 Connector CN 7 Pin 4 Yellow and CN7 Pin 5 NENNEN voltage at Room temperature ENSE Resistance at Room Orange Temperature Power off Dis connect CN7 4 din SVDC
6. al amp Extra Rinse simultaneously with the power on While in Service Mode the following tests can be performed Quick Spin Test Delay Start amp Silver Care This acceler ates the drum motor from 0 to maximum RPM over a few minutes Note Stay with the washer during this test out of balance detection is bypassed and the door may not lock Press the Start Pause button during the test to hold its spinning speed for 10 minutes before going back to Quick Spin Test Mode Cycle Count Press Signal button to see of times used Soft Ware Press Soil button to see software version info Fast Time Down Press Temp button to advance to next cycle Fault Code Test Press the Silver Care button to view the stored fault codes then turn Jog Dial to view error codes Push Start Pause while the code is displayed to view the num ber of cycles since the error occurred Peripheral Main PCB input Tests 1 Select Extra Wash Then turn the Jog Dial so that the Extra Rinse LED is turned on Next press the Start Pause Key The Water Temperature will be displayed in Fahrenheit 2 Select Extra Wash Then turn the Jog Dial so that the Extra Spin LED is turned on Next press the Start Pause Key The door status will be displayed OP if open CL if closed 3 Select Extra Wash Then turn the Jog Dial so that the Delay Start LED is turned on Next press the Start Pause Key The door lock Switch status will be displayed UL if unlocked Lo if
7. alance Error 9 C 10 E E 5 for preventing non sensing faults Check whether the washing machine is level to the floor with respect to the original position of the washing machine prior to service Doing this now will reduce the need for a redo call and customer dissatisfaction Vibrations can shorten the lifetime of the product Foot Pad for Walking Washer There When installing a washer and dryer on the first or second floor do not is one in each package so order 4 exceed this leg adjustment height for stability n2 DC97 10935A ASSY RUBBER FRONTIER WF316 NR VHB LOCATION 2 tsWF438 RevG 02 25 2011 6 Water valve connections for the Detergent Drawer Items Packed With Washer BOLT SPANER 10 13mm Wrench DC60 40146A ASSY HOSE WATER DC97 15691A and DC97 15692A MANUAL BOOK DC68 02535A CAP FIXER DC67 00307A HOSE HANGER DC62 10278A B Stacking Kit Model No SK 5A XAA Samsung washers and dryers can be stacked to maximize usable space An optional stacking kit is available for purchase from your Samsung retailer b When using non HE B detergents or using too much detergent for the water hard ness and soil level of the clothing over sudsing will occur When this happens there will be leaks out of the detergent drawer and door Please advise con sumer of proper de tergent usage ILLI m
8. ay shows Replace Ma Fault chine Control Board _ Check whether either the Power switch or a tact switch any button Switch Error is stuck down A button is either stuck or is being pressed Main Relay Check whether the service PBA holding screws are fastened too Error continuously tight pinching the contacts If the main PBA switching IC on off error has occurred replace the main PBA The E2 error occurs if the main relay connections are incorrect Check the connections If there is no error in the connections re place the main PBA dS ae Before Door Is open Check the door switch and latch alignment Door Error M Check the latch for damage The door was unlocked During while the washer Check the wiring harness to the latch l Was Check the door switch Replace if faulty operation LO Check the main PBA door sensing circuit Replace if faulty 2 Finally verify he operation of the Main The door will not Unlock unlock Fail Power Interruption FL 4 The washer door Lock Fail would not lock tsWF438 RevG 02 25 2011 5 This can be a short or a wire disconnected to the heater circuit This Heater Error Hr can also be problem with the tub contacting the heater or if the wa 36 ter in the tub is frozen or there is no water The error is triggered by Heater Em temperatures above 145C If the heater has no error this occurs Water T
9. d turn the Jog Dial so that the version disappears Press the following keys to test the various components Press Temp Key to cycle through the Water Valves circuit test lock the door first in this order Pre Wash Bleach Cold Main Hot amp Steam then off Press Spin Key to test Door Lock Unlock circuit Press Soil Level Key to test Circulation Drain Pump Press Signal Key to test the Water Steam Heater When either Test or Spin is displayed on the LCD press Start Pause key to conduct the motor test In Test mode you can test the clockwise and counter clockwise movement of the motor However the water level must satisfy the heater water level 24300 to en ter Test mode In Spin mode you can test the motor at a high rpm EEPROM Clear Check Power off Press Delay Start Signal and Power Key at the same time Good Good Fail All memory will be cleared including Fault Codes This should be done when a new Main PCB is installed tsWF438 RevG 02 25 2011 C cx EXtra Hot Cold vashi Power oa N i 7 E My Cycle 8 C 8 9 Medium Pre Wash Start Pause eia mb N Steam Signal x Temp Spin Soil Level Care f 2 D 3f Y f YY we j M jj M fi 243 jj Sa d AZ 3 2 T i WF F AZ Service Mode This mode allows more detailed operation tests and trouble shooting to enter press Sign
10. e displayed time will pause and hold until the heating operation has been completed It is at this point that the customer may feel that operation has stopped The maximum added programmed time is 30 minutes tsWF438 RevG 02 25 2011 7
11. emperature because of a PBA relay malfunction Check the wiring harness to Relay Control Problem the heater An Hr error occurs if the steam heater is faulty replace it ge o 0 EMC Filter issue or a noise spike from an external device E Water is supplied continually because the water level detection Overflow error OE a does not work Verify the drain is working properly the water level Water Supply l E Problem detection does not work and water is supplied continually Verify the water valves shut off fully Finally check the water level sensor 2 Error The washing heater temperature sensor in the tub has an error Temperature Temperature Sensor Check the connections for the washing heater temperature sensor Sensor Error Problem connector d 7 8 Check the type of laundry Check whether it may cause an unbal Unbalanced Load anced situation Educate the consumer in this case to press pause reposition the load or remove a few items Press start to continue and complete the wash cycle Silver Care Check Silver Care PCB Main PCB amp Wire harness PCB Failure Mems or Har Check MEMS PCB Main PCB amp Wire harness ness Failure Error This occurs when too much foaming is detected It is also displayed Foaming SUdS Excessive Suds while foaming is removed When the removal is finished the normal Detected cycle proceeds This is one of the normal operations It is an error Silver Care Kit Unb
12. locked 4 Water Frequency Water Sensor Testing Select a cycle amp start the washer enter Service Mode amp press Extra Wash Turn the Dial so that the Pre Wash LED is turned on Next press the Start Pause Key The Water Frequency will be dis played The frequency will change as the unit fills 5 Select Extra Wash Then turn the Jog Dial so that My Cycle LED is turned on Next press the Start Pause Key The AG Kit status will be displayed after 3 seconds E if the AG kit is abnormal if the AG Kit is working properly WFASS IXAA MAIN FWE SENSOR Ycee MOTOR POWER U HT ted LLLA V 7 i WASHER MOTOR SN H HHT WASHER THERE STOR ce TEMS e al DM Tp PESSIRE 18131 E 2 ARENE S DOOR CHE ni L KIT ERLER ME EU 900 2 OX 4 T D OP 2 RELAY LOL 9 OOE ejg 5 2 2 NG y Lats WE BLK BLACK YEL FELLOW BLU BLUE zu Sx mesh R g E 05 ajajajaj WHT WHITE T E Lumens Ea r 4 E WEBSTAT Ek iT i 5 ORANGE 555554771 n D 5 o GA
13. ween 47 milliseconds 570 Test 1 Test 2 120VAC with the pump On and OVAC Power Off the resistance should be with the pump off 13 90 Test 1 Test 2 120VAC with the Valve On and OVAC Power Off valve resistance is from with the Valve off 12020 12450 Connector CN2 Pin 3 Gray and RY3 heater re 120VAC with the Heater On and OVAC Power Off heater resistance is lay Pin 2 Red with the Heater off 16 6 Connector CN2 Pin 3 Gray and RY4 heater re 120VAC with the Heater On and OVAC Power Off heater resistance is with the Heater off 15 6 O lay Pin 1 White Details Drain Motor Check Connector CN2 Pin 3 Gray and CN3 Pin 3 Violet Water Valve Check Connector CN2 Pin 3 Gray to CN3 Pin 5 Pink Pin 4 Brown Pin 7 Yellow Pin 8 Blue Pin 9 Red Heater Relay Check Error Mode Check the Hose where the sensor is connected may be loose pinched damaged or clogged Also check the sensor it may be disconnected or defective The Main PCB may also be defective Error Type Water Level Sensor Water Lewel Sensor Problem Check the motor drive connector it may be loose The hall sensor may be disconnected loose or damaged Check for a foreign ob ject inside the motor or motor damage The stator might be loose or damaged The drum might be overloaded from too many clothes or the relay or PCB might be defective Motor Drive Error or Hall Sensor error The motor is not working properly
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