Samsung WF306BHW/XAA User manual

# tsWF306 RevD 03/21/2011 1
Fast Track Troubleshooting
Model: WF306BHW/XAA
WF306BAW/XAA
WF306LAW/XAA
Publication # tsWF306 Revision Date 03/21/2011
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. Press the follow-
ing keys to test the various components
Press Temp Key to cycle through the Water Valves in
this order: Pre Cold, Cold Main, Bleach, Cold Main &
Bleach for Fabric Softener, Hot, then off.
Press Spin Key to test Motor circuit.
Press Signal Key to test Drain Pump
Press Soil to test door lock - unlock circuit
Service Mode:
This mode allows more detailed operation tests and
troubleshooting, 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 accelerates the drum motor from 0 to maxi-
mum 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 dur-
ing 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 Soil button shows software version
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 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. Extra Wash. Then turn the Dial so that the Normal is turned on.
Next, press the Start/Pause Key. The Water Temperature will be
displayed in Fahrenheit.
2. Extra Wash. Then turn the Dial so that the Whites is turned on.
Next, press the Start/Pause Key. The door status will be displayed
(OP if open, CL if closed).
3. Extra Wash. Then turn the Dial so that the Perm Press is
turned on. Next, press the Start/Pause Key. The door lock Switch
status will be displayed (UL if unlocked, Lo if locked).
4. Extra Wash. Then turn the Dial so that the Delicate/Hand
Wash is turned on. Next, press the Start/Pause Key. ― ‾0 ‖ will illu-
minate if below level, ― ‾1 ‖ if above level (Overflow).
5. Extra Wash. Then turn the Dial so that the Wool is turned on.
Next, press the Start/Pause Key. ― -0‖ will illuminate if below level,
―-1‖ if above level (Heater-On).
6. Extra Wash. Then turn the Dial so that the Quick Wash is
turned on. Next, press the Start/Pause Key. ―_0‖ will illuminate if
below level (Reset), ―_1‖ if above level.
7. Extra Wash. Then turn the Dial so that the Towels is turned on.
Next, press the Start/Pause Key. The Water Frequency will be
displayed.
8. Extra Wash. Then turn the Dial so that the Rinse+Spin is
Turned on. Next, press the Start/Pause Key. Then, it will display
the Ag Kit Status in 3 seconds: ―- -‖ if AG kit is operated properly.
―7E‖ if AG kit is out of order (check wire harness & PCB)
9. Extra Wash. Then turn the Dial so that the Spin Only is turned
on. Next, press the Start/Pause Key. Then, it will display the
MEMS Sensor Kit status after displaying ―00‖ for 3 seconds:
―- -‖ if MEMS Sensor kit is operated properly. ―8E‖ if MEMS Sensor
kit is out of order (check wire harness & PCB)
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
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 & D/W
Please Note: Bulletin
on Water Leak issue

# tsWF306 RevD 03/21/2011 2
Model NOTE
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

# tsWF306 RevD 03/21/2011 3
RY9 Washer Heater Relay
1 Heater (Red)
2 (N) (Wht)
CN9
1 Motor Pwr U Phase (Blu)
2 Motor Pwr V Phase (Wht)
3 Motor Pwr W Phase (Red)
CN10
1 Main Valve (Blu)
2 Hot Valve (Red)
3 Pre Cold Valve (Yel)
4 Bleach Valve (Pnk)
6 Drain Pump (Blk)
7 Door Lock Close (Sky)
8 Door Lock Open (Wht)
CN8 (Hull Sensor)
1 +5 vdc (Pnk)
2 Sensor Signal (Red)
3 Sensor Signal (Blu)
4 Ground (Org)
CN7
1 Silver Care (Wht)
2 Door Lock & Valve common (to L)(Blk)
CN5
1 AC Pwr (N) (Wht)
3 AC Pwr (L) (Blu)
CN3
3 Water Temp Thermistor(Wht)
4 Door Sw (Brn)
6 Water Temp Thermistor Gnd. (Org)
7 Water Level Sensor (Vio)
8 Water Level Sensor (Pnk)
CN1 & CN2
PCB Sub (Display)
CN4 AG PCB
1 (Red)
2 (Blu)
3 (Wht)
4 (Grn)
5 (Pnk) Ground
Water Temperature Thermistor Check Test 1 Test 2
Connector CN 3 Pin 3 (White) and CN3 Pin 6
(Orange)
Operating voltage at Room temperature
-
Operating Resistance at Room
Temperature (Power off) discon-
nect CN3
2.5VDC (5VDC May indicate a connector
issue)
12kΩ-14kΩ
Door Switch Check Test 1 Test 2
Connector CN3 pins #6(Org) & # 4(Brn) 5VDC Door Open, 0VDC Door Closed Operating Resistance with
power off
open with door open, short with
door closed.
Water Level Sensor Check Test 1 Test 2
Voltage: Connector CN 3 pins #6(Org) & # 7(Vio)
And Connector CN 3 Pins #6(Org) & #8(Pnk)
Resistance: Connector CN 3 Pin 8 (Pink) and CN7
Pin 7 (Violet)
Operating voltage at no water in the
drum-
Operating Resistance (Power
off)
2.5VDC CN3 Pin 8 (Pink) and Pin 7
(Violet) 22- 24Ω
Hall Sensor Check Test 1 Test 2
Connector CN8 pins #4(Org) & # 2(Red) additionally
4(Org) & # 3(Blu)
Manually spin the drum to see the volt-
age change, Power On
N/A
0Vdc or 3.75Vdc
Motor Check Test 1 Test 2
Connector CN9 Pin 1 (Blue), Pin 2 (White) and Pin
3 (Red)
Power Off 11.5Ω across Pins 1-2, Pins 1
-3, & Pins 2-3
N/A
A/C Power Check Test 1 Test 2
Connector CN 5 Pins 1 (White) and 3 (Blue) Power On 120VAC N/A
CN11 (MEMS PCB)
1 (Blu)
2 (Wht)
3 (Yel)
4 (Org)
5 (Pnk)

# tsWF306 RevD 03/21/2011 4
Door Lock Check Test 1 Test 2
Connector CN10 Pin 7 (Sky Blue) and CN5 Pin 3
(Blue)
When Door is Locked or Unlocked
there is a pulse of 120VAC for a few
milliseconds.
With Power Off, the resistance
between these pins will be between
56 - 62Ω
Door Unlock Check Test 1 Test 2
Connector CN10 Pin 8 (White) and CN5 Pin 3
(Blue)
When Door is Locked or Unlocked
there is a pulse of 120VAC for a few
milliseconds.
With Power Off, the resistance
between these pins will be
between 56 - 62Ω
Drain Motor Check Test 1 Test 2
Connector CN10 Pin 6 (Black) and CN5 Pin 3
(Blue)
120VAC with the pump On and 0VAC
with the pump off
Power Off, the resistance should be
13.9Ω
Water Valve Check Test 1 Test 2
Connector CN5 Pin 3 (Blue) to CN10 Pin 4 (Pink),
Pin 3 (Yellow), Pin 2 (Red) , Pin 1 (Blue)
120VAC with the Valve On and 0VAC
with the Valve off
Power Off, resistance at valve is
from 1202Ω - 1245Ω
Heater Relay Check Varies by Model Test 1 Test 2
Connector CN5 Pin 3 (Blue) and RY9 (heater re-
lay) Pin 1 (Red)
120VAC with the Heater On and 0VAC
with the Heater off
Power Off, heater resistance is
16.6 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. The Main PCB may also be defective
Motor Drive Error or
Hall Sensor error
3E
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.
E3
bE
25
Water Supply
Error
nF
3
Check the water valve wiring harness.
Check whether the water supply valve is clogged with foreign ma-
terial and whether water is supplied properly.
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
System Error SF1
SF2
SF3
Replace PCB

# tsWF306 RevD 03/21/2011 5
Error Type Error Mode Details
LED LCD
Drain Error nD
1
Check for Foreign material entering the pump or hoses.
Check to make sure the wiring harness is connected properly.
Check the water pump terminal .
Check for freezing
Power Error 2E
91
92
Make sure to check the operating voltage. (An error occurs when
under or over voltage is supplied.) Check whether a plug recepta-
cle is used. When the connecting wires are too small (extension
cord use), a momentary low voltage may drop up to 10 V
Main PBA fault (sometimes)
PF Momentary Power Failure
Communica-
tion Error
AE Check the wire connections and terminal contacts between the sub
and main PBAs.
Check for disconnected wires.
Check whether the sub PCB is short circuited because of moisture.
If the main PCB’s communication circuit is faulty, replace it.
EEPROM
Fault.
11 Go to ―EEPROM Clear Mode‖ If display shows ―FAiL‖, Replace Ma-
chine Control Board
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 incorrect.
Check the connections. If there is no error in the connections, re-
place the main PBA
SR
dS
22
(Before
operation)
Check the door switch and latch alignment .
Check the latch for damage
Check the wiring harness to the latch.
Check the door switch. Replace if faulty.
Check the main PBA door sensing circuit. Replace if faulty.
Finally verify he operation of the Main PCB
Door Error dL
18
(During
operation)
LO
2
(Unlock
Fail)
FL
4
(Lock Fail)

# tsWF306 RevD 03/21/2011 6
When installing a washer and dryer on the first, or second floor, do not
exceed this leg adjustment height for stability.
Foot Pad for Walking Washer, There
is one in each package, so order 4
Error Type Error Mode Details
LED LCD
Heater Error Hr
36
(Heater
Relay)
This can be a short or a wire disconnected to the heater circuit. This
can also be problem with the tub contacting the heater or if the wa-
ter in the tub is frozen or there is no water. The error is triggered by
temperatures above 145C. If the heater has no error, this occurs
because of a PBA relay malfunction. Check the wiring harness to
the heater.
An Hr error occurs if the steam heater, is faulty, replace it.
9E1 EMC Filter issue or a noise spike from an external device
Overflow error OE
E
Water is supplied continually because the water level detection
does not work. - Verify the drain is working properly, the water level
detection does not work and water is supplied continually. Verify 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 load or remove a few items. Press start to
continue and complete the wash cycle.
Silver Care Kit
(Silver Care
PCB) Failure.
7E Check Silver Care PCB ,Main PCB & Wire-harness
Mems or Har-
ness Failure
8E Check MEMS PCB ,Main PCB & Wire-harness
Foaming
Detected
SUdS
Sd
This occurs when too much foaming is detected. It is also displayed
while foaming is removed. When the removal is finished, the normal
cycle proceeds. (This is one of the normal operations. It is an error
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.

# tsWF306 RevD 03/21/2011 7
Water valve connections for the Detergent Drawer
Laundry Touch Up Paints
TOUCH UP PAINT, BLUE ONYX DH81-11980A
TOUCH UP PAINT, IMPERIAL SILVER DH81-11981A
TOUCH UP PAINT, NEAT WHITE DH81-11982A
TOUCH UP PAINT, STRATUS GRAY DH81-11983A
TOUCH UP PAINT, TANGO RED DH81-11984A
Items Packed With Washer
BOLT-SPANER (10-13mm Wrench) DC60-40146A
ASSY HOSE WATER DC97-15691A
ASSY HOSE WATER DC97-15692A
MANUAL-BOOK DC68-02535A
CAP-FIXER DC67-00307A
HOSE-HANGER DC62-10278A
When using non-HE
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.
Varies by model
Location considerations
Do not install your washer in areas where water
may freeze, since your washer will always main-
tain some water in its water valve, pump, and hose
areas. This can cause damage the belts, the
pump, hoses and other components.
It is normal for a small amount of water
remaining in Detergent Drawer after it
completes washing. Bleach is usually
flushed out into the tub at the beginning of
the washing. Also, its compartment is
washed again during the following rinse
cycle, removing any remnants.