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Samsung WF338 XAA Series, Fast Track Troubleshooting

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Samsung WF338 XAA Series Fast Track Troubleshooting Download Page 1

Fast Track Troubleshooting 

Publication #  tsWF338   Revision Date 8/10/2010

 

Quick Test Mode 
 

Note: This test erases all faults and memory

:

  

To enter press Soil, Signal, & Power                     
simultaneously with the power off.   

NOTE On early production: 

To enter press Soil, 

Steam, & Power simultaneously with the power off.   

 

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 displayed, 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, & 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.   

 

Service Mode:  

This mode allows more detailed operation tests and trouble-
shooting, to enter press Signal & Extra Rinse                          
simultaneously with the power on.   
 
While in Service Mode the following tests can be performed: 
 
Quick Spin Test =

 

Delay Start & 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 the Signal button to see how many times 

the unit was used  

Soft Ware # = 

Press the Soil button to see the software version 

information

 

Fast Time Down = 

Press the Temp button to advance to the 

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 

locked).

 

4. 

Select Extra Wash. Then turn the Jog-Dial

 

so that the 

Pre 

Wash LED

 is turned on. Next, press the Start/Pause Key. The 

Water Frequency will be displayed.

 

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. (“

ㅂ

E” if the AG kit is 

abnormal. “—” if the AG Kit is working properly)

 

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. 

Model:  WF338***/XAA           
BOM Models 
WF338AAW/XAA 
WF338AAR/XAA 
WF338AAG/XAA  
WF338AAB/XAA

 

EEPROM Clear Check 

Power off, Press Delay Start, Signal and Power Key at 
the same time.  Good = Good   Fail = FAiL 
All memory will be cleared, including Fault Codes  

This should be done when a new Main PCB is    
installed 

 

1

Summary of Contents for WF338 XAA Series

Page 1: ...tton to see how many times the unit was used Soft Ware Press the Soil button to see the software version information Fast Time Down Press the Temp button to advance to the 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 Pe...

Page 2: ...WF338AA Gray Gray CN1 2 ...

Page 3: ...Test 2 Connector CN 7 Pin 4 Yellow and CN7 Pin 5 Orange Operating voltage at Room temperature Operating Resistance at Room Temperature Power off discon nect CN7 4 2VDC 5VDC May indicate a connector issue 50 57kΩ Door Switch Check Test 1 Test 2 Connector CN4 Pin 1 Pink and CN4 Pin 3 Gray 25VDC Door Open 0VDC Door Closed Operating Resistance with power off 24kΩ Water Level Sensor Check Test 1 Test 2...

Page 4: ...6 Ω Steam Heater Relay Check Test 1 Test 2 Connector CN2 Pin 3 Brown and RY4 heater relay Pin 1 Black 120VAC with the Heater On and 0VAC with the Heater off Power Off heater resistance is 15 6 Ω Error Type Error Mode Details LED LCD Water Level Sensor LE 8 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 ...

Page 5: ...e If the main PCB s communication circuit is faulty replace it Switch Error Main Relay Error E2 15 Check whether either the Power switch or a tact switch any button is stuck down Check whether the service PBA holding screws are fastened too 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 i...

Page 6: ...y the water valves shut off fully Finally check the water level sensor Temperature Sensor Error 29 The washing heater temperature sensor in the tub has an error Check the connections for the washing heater temperature sensor connector Unbalance Error dC 10 Check the type of laundry Check whether it may cause an unbal anced situation Educate the consumer in this case to press pause reposition the l...

Page 7: ...chase from your Samsung retailer Location considerations Do not install your washer in areas where water may freeze since your washer will always maintain some water in its water valve pump and hose areas This can cause damage the belts the pump hoses and other components Operat ing temperature should be above 60 F 16 C Selecting Language 1 The Select the Language message appears 2 Turn the Jog Di...

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