Samsung WF56H9100 User manual

Fast Track Troubleshooting
Model: WF56H9100
Publication #Dr WF56H9100 Production Date 6/16/14
SM UPDATED 11/05/2014
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.
Bulletins:
Support Information:
HELP: 1-888-751-4086 (Tech Sup. – ASC/SSD) -1-866-894-0637 (Tech Sup. - FE/ME)
GSPN: http://gspn3.samsungcsportal.com/main.jsp
PLUS ONE: http://my.plus1solutions.net/clientPortals/samsung
SERVICE MODE:WITH POWER ON - PRESS: Soil Level + Delay End
TEST FUNCTION PRESS To Enter or Exit
1 Cycle Count Temp
2 Version SOIL Level
3
Board Input Test
(Move Jog dial to check LED)
(See Chart at bottom)
Delay End
4 DIAGNOSTIC ERROR CODE CHECK
(See Below)
SPIN - Turn dial either clockwise (c.w) or
counter c.w.
5 SPIN TEST ( RPM) (ref: NB***) Delay End+ Temp for 3sec.
(To Pause: press - START/PAUSE)
QUICK TEST MODE: WITH POWER OFF - PRESS: Spin + Soil + POWER
NB*** Spin Test will NOT test Hall Sensor in this mode.
NOTE: ALWAYS remember to offset counter weight when spin testing an empty machine
FACT: It is NORMAL for this unit to be unbalanced until 350-400 RPM. •Activate the SERVICE MODE first (ref: above).
•Press the SPIN key to start DIAGNOSTIC CODE
check mode. “d” will start flashing.
•To cycle through the diagnostic codes (d1, d2, d3,
etc.), turn the rotary cycle selector (knob) either
clockwise or counter clockwise.
•When turning the rotary selector key (knob) in one
direction, it shows diagnostic codes from the latest
(d1).
•Now when turning the knob in the opposite
direction it shows the diagnostic codes in the
reverse order. E.g. When it stops at “d5” and then
turn backwards, it shows from “d4” to “d”. (Refer
to Diag. Code interpretation).
Service mode Option 4:
DIAGNOSTIC ERROR CODE CHECK
Use the Board input test under service mode to test water temp,
during normal wash operation.
Service mode Option 3:
Board Input Test Chart
TEST FUNCTION PRESS to Enter or Exit
1 Water Valve Test
TEMP
**Door Lock Must be Activated 1st
before running Component **
2 Door Lock Spin
3 Heater Super Speed
4 Drain Pump / Bubble Pump Soil Level
5 EEPROM MEMORY CLEAR When you Enter Quick Test Mode
Memory will be clear

Error Type Error
Mode Causes Corrective Actions Description of Photo
Water Level
Sensor
1E
• Water level sensor fault.
• Incorrect connections of
the water level sensor
terminal.
• The hose part for the
water level sensor is
folded.
• Main PCB fault.
• Check the water level sensor
terminal connections and
contacts.
• An error occurs if an incorrect
water level sensor is used.
Make sure to check the
material code. (Abnormal
operation)
• If the water level sensor is
faulty, replace it.
• If the error persists despite
taking the action above,
replace the PBA.
►Check the water level sensor frequency.
1. Check it after the water level sensor and
the connector are connected.
Checking Part : Blue Color Wire Orange
Color Wire
2. Frequency: Approx. 26.4 KHz without
water (Min 25.9KHz)
Water Supply
Error
4E
• Water supply value fault
• Main PCB fault
• Freezing in the winter
season
• If the water supply valve has
a wire disconnected, replace it.
• Check whether the water
supply valve is clogged with
foreign material and whether
water is supplied continually.
• Check whether no water is
supplied because of freezing
in the winter season.
• If the PBA relay operates
abnormally, replace the PBA
1. Check the resistance for the water supply valve.
- Resistance : 0.9KΩ to 1.1KΩ between the
terminals of the Water Supply Valve.
2. Check whether there is foreign material in the
Water supply valve filter.
Washing Motor
Error and Hall
Sensor Error
3E
· Washing motor fault
· Washing motor hall
sensor fault
· Incorrect connections of
the washing motor/hall
sensor connector
· Washing motor rotor
and stator fault
· Main PCB fault
• Check the motor connector
terminal
connections and contacts.
• 3E is displayed because
overloading
occurs due to too much
laundry.
• If the hall sensor terminal is
faulty,
replace the hall sensor.
• Check whether the stator of
the
motor cover is damaged.
• Check for coil disconnections
due to
foreign material.
• If the PBA control circuit is
faulty,
replace the PBA.
►Check the motor Winding Coil
• Plug out the connector and read resistances at
any two of the three terminals on Motor : Should
be 19.3Ω (at 25oC)
►Check the motor Hall Sensor
• Check the resistance on the main PCB
motor(Between pins 2 and 4, 3 and 4 of the
four (4) pins)
- Resistance : Approx. 2 to 4 MΩ
- Check the voltage when the power is on.
Drain Error 5E
• Freezing in the winter
season
• Foreign materials in the
drain pump
• Poor physical connection
• Drain pump fault
• Main PCB fault
• If the drain pump revolutions
are restrained due to freezing in
the winter season, check the
method to remove the freezing
and remove as directed.
• Check whether the revolutions
of the drain pump motor are
restrained by foreign material,
and remove as directed.
• Check the wire connectors on
Main PCB and Drain Pump
ASSY. The connector or wire
may have poor physical
connection.
• Check the drain pump
resistance.
Check the drain pump resistance.
(Resistance : 13.5 ~ 16.5Ω)

Communication
Error AE
• The signals between
the sub and main PBAs
are not sensed.
• Incorrect wire
connections between
the sub and main PBAs.
• Check the wire connections
and terminal contacts between
the sub and main PBAs.
• Check for disconnected wires.
• Check whether the sub PBA
is short-circuited because of
moisture.
• If the main PBA’s
communication circuit is faulty,
replace it.
-
Switch Error
(Main Relay Error)
bE2
• The Power button is
continually pressed.
• A button other than the
Power button is
continually pressed.
• Check whether either the
Power switch or a tact switch is
continually pressed.
• Check whether the service
PBA holding screws are
fastened too tight. If they are
fastened too tight, loosen them
a little.
• If the main PBA switching IC
on/off error has occurred,
replace the main PBA.
• The “bE2” error occurs if the
main relay connections are
incorrect. Check the
connections. If there is no error
in the connections, replace the
main PBA.
Check the contact between the control panel
buttons and their corresponding tact switch.
- There must be a gap between a control
panel button and its corresponding micro
switch.
Otherwise, an error occurs after approx.
30 seconds has passed.
Door Error dE1
dE
• Door-Lock SW fault
• Reed SW fault
• Main PCB fault
• Check the Door-Lock SW
terminal connections and
contacts.
• Bring the probe of tester into
contact with two terminals of
Door-Lock SW.[dE Error] In
state of Door Close, Check
Reed SW Resistance.[dE1
Error] In state of Door Unlock,
Check Motor Resistance. And
In state of Door Lock, Check
Door Lock Contact
Resistance.[dE1 Error] In state
of Door Unlock, Check Motor
Resistance and Door Unlock
Contact Resistance.
• If Resistance is satisfied with
Spec, Replace the PBA.

Error Type Error
Mode Causes Corrective Actions Description of Photo
Water Leakage
Error LE
• Check for any
leakage.
• Foreign material in
the DV case
• Fault of a hose or
incorrect part
engagement in the
product.
• Check for any leakage on the
base, Hose, Valve and Tub
connections and take any
required action.
• During natural draining, this
error occurs when the drain
bellows are clogged with
foreign material. Remove the
foreign material.
• Check the drain motor
operation. Replace if it does
not operate normally.
Overflow Error OE
• Water level sensor
fault
• Freezing in the winter
season
• If the water level sensor has a
functional error, replace it.
• Check the hose. This error
occurs if it is torn or has a hole.
• This error occurs if water is
frozen in the winter season.
Use hair dryer to defrost hose.
Consider relocating the unit to
warmer location.
Temperature
Sensor Error
tE
• Washing
temperature sensor
fault
• Faulty and incorrect
connections of sensor
• Main PCB Fault
• Freezing in the
winter season
• Check the connections of the
temperature sensor.
•If the temperature sensor
has a functional error, replace
it.
Check the thermistor resistance
(Resistance at 20~30℃: 66.187~36.941㏀)
Unbalance
Error UE
• Motor hall sensor
fault
• Caused by the
laundry contents
•Check the type of laundry.
Check whether it may cause an
unbalanced situation.
•- Educate the consumer in this
case is to press pause
reposition the load or remove a
few items. Press start to
continue and complete the
wash cycle.
-

Additional Error codes
Sd

Will Not Start
• Plug the unit into the wall outlet. Check for proper voltage.
• Check fuse or reset circuit breaker.
• Push any key to turn on the washer and press the Start/Pause key to run the washer.
• Close door and push the Start/Pause key to run the washer.
• Check if washer is in a pause, soak or suds process. Wait briefly and it may start. (If the washer is in suds period, Suds will light up instead of
remaining time.)
• Check for restricted drain system. (If there is electrical problem in drain system, “NO Draining” error will occur after 15 minutes.)
• Check Water Supply.
• Check the line or water valve screen filter.
• Check if PCB connectors are assembled LCD / LED properly.
• Check if CN6 terminals on PCB are in good condition. (Refer to PCB Connector Check.)
• Replace PCB.
Leaking
• Make sure inlet hose connections are not leaking. Check for rubber gasket damage due to over tightening.
• Check standpipe for leak. Wrap a dry rag around the standpipe opening. If the rag becomes wet, the leak is the fault of home plumbing.
• Make sure the end of the drain hose is correctly inserted and secured to the drain standpipe.
• Check internal hose connections (fill, drain systems, dispenser hoses & clamps).
• Check the rubber boot. Remove, reposition and reinstall, if necessary.
• Check for a possible kink in the dispenser hose to the outer tub. Hot water pressurization may force the door open
No Tumble
• Start normal cycle with an empty machine and allow a fill to check tumble.
• Perform Quick Spin Test. (Before test, make sure that the tumbler is empty.)
• Check for loose connections at Machine Control Board, Pressure Switch, Motor, Tech Harness and Motor Control.
• Check motor windings resistance. CN8 pins 1 & 3 = 11.6ohms ±7%, Pins 1 & 2 = 11.6ohms ±7%, Pins 2 & 3 = 11.6 ohms ±7%
• Faulty Main Control Board.
• Faulty motor
Will Not Spin
• Make sure to close the door completely.
• Check for water left inside the washer. If so, go to “Will Not Drain”.
• Perform Quick Test Mode or Quick Spin Test. Does the washer spin? (Before the test, empty the unit inside.)If it doesn’t tumble after the above,
change PCB. When the problem persists, change the motor.
• Perform Quick Test Mode or Quick Spin Test. Does the washer spin? If it does, Check Possible unbalanced load scenario in normal mode.
• Check for loose connections at PCB, Water Level Sensor, Motor, Hall Sensor Wire Harness. (CN7,CN5,CN6)
• Check motor windings resistance. CN8 Pin1&3 = 11.6 ohms ±7%, Pin1&2 = 11.6ohms ±7%, Pin2&3 = 11.6 ohms ±7%
No Water Fill
• Perform Quick Test Mode. Check all of the Water Valves visually. (Pre Wash Valve, Cold Water Valve, Bleach Water Valve, Softener dispenser
using Cold & Bleach Water Valve, and Hot Water Valve.)
• Check if water taps are turned on fully.
• Check Water Valves and Water Level Sensor (Refer to PCB Connector Check)
• Check if there is any kink in inlet hoses.
• Check if inlet screens are clogged up.
• Check if water has enough pressure. If so, find out its contributors.
• Check if there is any frozen area in the unit (Drain Hose, etc).
• Measure the resistance of Water Valve Coil. (It should read 1.18K ohms. Check Pin # 1 of CN6 and PIN# 1, 2, 7, 8, 9 of CN1)
• Check Pressure S/W and PCB for loose connections. (Refer to PCB Connector Check).
Will Not Lock
• Door is not aligned or closed properly.
• Perform Quick Test Mode. Check Door Lock. Check the output voltage of Door Lock Coil. If it reads 120V, change Door Lock Switch, and if not,
change PCB. (Refer to PCB Connector Check.)
• Read Lock Switch and PCB (CN6 & CN1). (Refer to PCB Connector Check.)
• Try Door Lock and check for 120V to Door Lock Connector. If 120V present, change Main Control Board and if not, change Door Lock switch.
Will Not Unlock
• Check if the door is being pushed out, which may keep it from unlocking.
• Door locks itself when the water level is too high. Opening door will result in water draining from door opening.
• Check the following with Board Input Test Mode. Water Level (frequency): Over 23.80 KHz. If so, refer to “Will Not Drain”.
Temperature (Inside Drum): Higher than 60ºC/140ºF. If so, wait until it drops. When everything normal, check PCB connectors & Door Lock Switch.
• Drain manually after removing the plastic drain hose holder.
• Display shows “The door will not unlock”. Turn unit off and on. If “The door will not unlock” keeps illuminating, check PCB & Door Lock Switch.
• Read Lock Switch and PCB (RY7 & CN10). (Refer to PCB Connector Check.)
• Perform Quick Test Mode. Check Door Lock. Check the output voltage of Door Lock Coil. reads 120V, change Door Lock Switch, and if not, change
PCB. (Refer to PCB Connector Check.)

Will Not Drain
• Check for any kink on the drain hose. If any, straighten it out.
• Check for any restriction in the drain hose.
• Close the door and press the Start/Pause Button. For safety reasons, the washer does not tumble or spin with the door open.
• When it is freezing outside, check if it is frozen inside the drain hose.
• Check if the water level signal input is correct. Go to Board Input Test Mode.
• Go to Quick Test Mode and do Drain Pump Test.
• Check if there is any twist in the hose (the one between Tub and Drain Pump).
• Check if it reads AC 120V at the pump when a spin cycle is selected.
• Read the winding resistance of the pump motor. (14.2±7% Ohms)
• Check the pump at CN1(PIN3) on PCB. It should read AC 110~120V. (Refer to PCB Connector Check)
Wrong Water Temperature
• Check if both of the water taps are fully open.
• Make sure the domestic water heater is set to deliver water lower than 120°F (49°C) hot water at the tap. Also check water heater capacity and
recovery rate.
• If the water heater is located far from the washer, screw out the hot water tap and let its water pass until you get hot water.
• Too Hot/Too Cold: Reduced amount of water is supplied while PCB controls the influx to regulate the actual temperature of the water in the tub.
This may appear to be significantly hotter/colder than expected.
• Check if the temperature selection is correct.
• Disconnect inlet hoses from the Water Valve and remove any residue in the inlet screens.
Noisy and/or Vibration/Walking
• Check if the washer is level and the lock nuts are tightened up on the bottom plate.
• Check if all of the shipping bolts and spacers are removed from the back panel.
• Check if load is big enough and there is no unbalance. If there is not enough load, put in a few towels to balance it.
• Check if the motor is fastened enough.
• Remove various trouble contributors (such as a coat of dust on the floor).
No Key Operation
• Option and Function buttons respond differently according to each cycle.
• Child Lock is being activated. To exit, hold down Soil Level Key and Signal Key simultaneously until it sends out a beeping sound.
• When “End“ illuminates on the display, only Power button works. Press Power button and make new cycle selections.
Buttons do not Respond
• Option and Function buttons respond differently according to each cycle.
• Child Lock feature has been selected. To disable feature press and hold Temp and Spin simultaneously until a
beep is heard.
• When display shows “End”, only the Power button will function. Press Power and make new cycle selections.