Samsung WF520ABP/XAA Fast Track Troubleshooting

Model:
WF520ABP/XAA
WF520ABW/XAA
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Quick Test Mode

To enter press Spin, Soil, & Power
ously with the power off.
1. All LED's light up and the washer beeps as it
enters the Quick Test Mode.
2. 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
CCW so that the version disappears. Press the fol-
lowing 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 Steam Level Key to test Circulation/Drain Pump.
Press Soil 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. 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 = FAiL
All memory will be cleared, including Fault Codes
This should be done when a new Main PCB is installed
# tsWF520 RevB 03/21/2011
Fast Track Troubleshooting
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.

SUPPORT INFORMATION

http://support-us.samsung.com/spstv/howto.jsp
simultane-
Publication # tsWF520 Revision Date 03/21/2011

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 & Extra Rinse:
erates the drum motor from 0 to maximum RPM over a few
minutes. Note: Stay with the washer during this test, out of
balance detection may be bypassed. Press the Start/Pause
button during the test to hold its spinning speed for 10 minutes
before going back to Quick Spin Test Mode. Press and hold the
Delay Start & Extra Rinse button to continue.
Cycle Count = Press Signal button to see # of times used.
Soft Ware # = Press Soil button to see software version info.
Fault Code Test = Press the Spin 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 number of cycles
since the error occurred, Push Start/Pause to go back to faults)
Peripheral (Main PCB) input Tests
1. Select Extra Wash. Then turn the Jog-Dial so that the Heavy
Duty 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 Perma-
nent Press LED is turned on. The door status will be displayed
(OP if open, CL if closed).
3. Select Extra Wash. Then turn the Jog-Dial so that the Sani-
tize LED is turned on. The door lock Switch status will be dis-
played (UL if unlocked, Lo if locked).
4. Water Frequency/Water Sensor Testing - Select a cycle &
start the washer, enter Service Mode & press Extra Wash.
Turn the Dial so that the Bedding LED is turned on. Next, press
the Start/Pause Key. The Water Frequency will be displayed.
The frequency will change as the unit fills.
This accel-
1