Samsung WF331ANW/XAA Operating instructions

# tsWF331 09/30/2011 1
Fast Track Troubleshooting
Model:
WF331ANW/XAA
WF331ANR/XAA
Publication # tsWF331 Creation Date 05/26/2011
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.
Quick Test Mode:
To enter press Soil, Signal, & 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.
3. After the displaying the software version, turn Jog dial
CCW until version disappears.
Press Spin to test Door Lock/Unlock circuit.
Press Temp Key (with door locked) to cycle through the
Water Valves circuit test in this order: Pre, Bleach, Cold
Main, Hot, Steam then off.
Press Soil Key to test the Heater
Press Signal Key to test the Pump
Spin Only option:
Power on, Press and hold Spin until display changes.
Press Spin to select spin time.
Press Start/Pause to start cycle, Normal Cycle 10/12
minutes, Heavy Duty Cycle 11/13 minutes, Delicate Cycle 8
minute. Spin speed varies with cycle.
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
Fabric Softener Dispenser Test:
Start Rinse and Spin Cycle. After fill is completed remove
detergent drawer, place towel below opening and within 3
minutes the dispenser will activate
Service Mode:
This mode allows more detailed operation tests and troubleshoot-
ing, to enter press Signal & Delay Start simultaneously with the
power on.
While in Service Mode (the Service Mode can be entered while
the unit is in a wash cycle) the following tests can be performed:
Quick Spin Test = Delay Start & Pre Wash: This accelerates the
drum motor from 0 to maximum RPM over a few minutes. Press
the Start/Pause button during the test to hold its spinning speed up to
10 min. before going back to Quick Spin Test Mode, return to spin
with Delay Start & Pre Wash.
Cycle Count = Press the Signal button to see how many times the
unit was used
Soft Ware # = Press the Soil Level button to see the software ver-
sion information
Fault Code Test = Press the Pure Cycle 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, push Start/Pause again to get back to faults)
Peripheral (Main PCB) input Tests, enter Service Mode & press
Spin key. 1. Turn the
Dial so that the Extra Rinse LED is turned on. Next, press the Start/
Pause Key. Temperature will be displayed in Fahrenheit .
2. Turn the Dial so that the Cold/Cold LED is turned on. Next, press
the Start/Pause Key. The door switch status will be displayed (CL if
Closed, OP if Open).
3. Turn the Dial so that the No Spin 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. Turn the Dial so that the Light LED is turned on. Next, press the
Start/Pause Key. The Water Frequency will be displayed.
Empty is approx 1613.
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Washer Connector Checks WF331
Water Level Sensor Check Test 1 Test 2
Voltage: Connector CN 7 Pin 6 (Pink) and Pin 5
(Orange) and Connector CN 7 Pin 7 (Violet) and Pin
5 (Orange)
Resistance: Connector CN 7 Pin 6 (Pink) and Pin 7
(Violet)
Operating voltage at no water in the drum-
2.5 VDC Operating Resistance (Power
off)
Pin 6 (Pink) and Pin 7 (Violet)
22-24Ω
Heater Relay Check Test 2
Connector CN2 Pin 3 (Brown) and Heater Relay
Pin 2 (Red)
120VAC with the Heater On and 0VAC
with the Heater off
Power Off, heater resistance is
~16.6Ω
Hall Sensor Check Test 1 Test 2
Connector CN6 Pin 4 (Orange) and Pin 2 (Red) addition-
ally Pin 4 (orange) and pin 3 (blue) Manually spin the drum to see the volt- age change, Power On
Voltage at Pin #4 (BLK) and #1
(RED) of CN1 = 5VDC
0Vdc or 3.75Vdc
D-D Motor Check Test 1 Test 2
Connector CN8 Pin 1 (Red), Pin 2 (White) and Pin 3
(Blue)
Power Off ~18Ωacross Pins 1-2, Pins 1-
3, & Pins 2-3
N/A
Test 1 Test 2
Test 1 Test 2
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Door Lock Check Test 1 Test 2
Resistance check CN3 Pin #5 (Red) and Pin #7
(Wht)
Power Off, resistance is Approx
0.2 Ω
Motor resistance at CN3
Pins 1-2 (Blk-Brn) 40KΩ
Door Unlock Check Test 2
Resistance check CN3 Pin #4 (Blu) and Pin #7
(Wht)
Power Off, resistance is Approx
0.2 Ω
Motor resistance at CN3
Pins 1-2 (Blk-Brn) 40KΩ
Drain Motor Check Test 1 Test 2
Voltage at Pin #1 of RY12 (WHT) and Pin #9
(PNK) of CN4
120VAC with the pump On and 0VAC
with the pump off
Voltage at Pin #1 of RY12 (WHT)
and Pin #9 (PNK) of CN4
should be ~14Ω
Water Valve Check Test 1 Test 2
Voltage at Pin #3 (BLK) of CN6 to Pin #2 (GRY) of
CN4 Bleach Valve, Pin #3 (BLU) of CN4 Cold
Valve, Pin #4 (RED) of CN4 Hot Valve, Pin #5
(WHT) of CN4 Rinse Valve
120VAC with the Valve On and 0VAC
with the Valve off
Power Off, valve resistance is from
1202Ω- 1245Ω
Error Type Error Mode Details
LED LCD
Water Level Sensor LE
8
Check for water to the valves, clogged valve screens, defective valve
solenoid coils. Check the water level / pressure sensor Check for 120VAC
to the valve.
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
Samsung washers are designed to dispense bleach during the rinse cycle, The reason is - Bleach kills enzymes in deter-
gent since bleach is a disinfectant not a cleaning agent it is dispensed during the rinse to protect the effectiveness of the
detergent. Enzymes are added to detergent to break down stains to allow better cleaning. Dispensing in the rinse does
not affect the bleach process used to keeps whites white and It also helps to minimize odor complaints.
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Error Type Error Mode Details
LED LCD
Drain Error nd
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.
The water level fails to drop below the Reset Water Level
within 30 minutes.
Power Error 2E
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.
Switch Error
(Main Relay
Error)
E2
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
Door Error ds
(Before
operation)
Failed Lock FL
(Lock Fail)
Unlock Failure LO
(Unlock
Fail)
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
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When installing a washer and dryer on
the first, or second floor, do not exceed
this leg adjustment height for stability.
Error Type Error Mode Details
LED LCD
Heater Error Hr
(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.
Overflow error
OE
1E
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
tE1 The washing heater temperature sensor in the tub has an error.
Check the connections for the washing heater temperature sensor
connector.
Unbalance
Error
dC
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.
Clutch
Motor Error
PE Check the clutch motor
windings and connec-
tor.
Clutch motor error. Occurs when the clutch motor position is not detected.
The MICOM will attempt 3 times to determine the motor position. After the
3rd attempt the error will appear.
Clutch motor error. Occurs when the clutch motor position is not detected.
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.
Mems or Har-
ness Failure
8E Check MEMS PCB ,Main PCB & Wire-harness
MEMS sensor error. If the output from the MEMS sensor is over 4.5VDC
(open) or below 0.5VDC (shorted) for 5 seconds this error will occur.
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.)
Clutch assem-
bly hall sensor
error
PE1 Check the clutch hall
sensor and wiring.
Clutch assembly hall sensor error. The drum will shake to try to determine
if the clutch is in the right position. After 15 attempts if the hall sensor is not
communicating with the MICOM the error will occur.
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