Samsung WF337AAR/XAA, Fast Track Troubleshooting

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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.
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)
Door Error dL
18
(During
operation)
LO
2
(Unlock
Fail)
FL
4
(Lock 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
EEPROM
Fault. 11 Go to “EEPROM Clear Mode” If display shows “FAiL”, Replace Ma-
chine Control Board
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