Samsung WF407ANW/XAA Fast Track Troubleshooting

Model: WF407ANW/XAA
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 & Steam:
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.
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 Extra Rinse 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)
Peripheral (Main PCB) input Tests
1. Select Extra Steam. 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 Steam. 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 Steam. 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 Steam. Then turn the Jog-Dial so that the Steam LED is
turned on. Next, press the Start/Pause Key. The Water
quency will be displayed.
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.
This accelerates
Press the
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Publication # nwWF407 Revision Date 06/17/2013
Quick Test Mode
Note: This test erases all faults and memory
To enter press Spin, Soil, & 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
Press Spin Key to test Door Lock/Unlock circuit.
Press Signal Key to test Drain Pump.
Selecting Language
1. The "Select the Language" message appears.
2. Turn the Jog Dial to select language
3. Press Signal button to select
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
:
first).