Daewoo KUD-UD121DCR, Service Manual

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50
4) Diagnosis of Defect
Symptoms Detailed Symptoms Cause Diagnosis of Defect Solution
Error
Mode
Ticking
noise
LE'
Door does
not open.
Tick' during initial
operation and 'tick-tick'
during temoprary
suspension: 'DF' type
only
Continuous occurrence
of 'tick' noise
and 'LE': 'DF' type only
1. 'LE' occurrence
without 'tick' noise in
'DF' type
Power failure, forced
power off during
operation
No power failure and
power on
Others
Normal noise
Connector loosened
Terminal loosened from
connector
Door not completed
closed
Abnormality in hook of
door
Defect in catch CAM
operation
Connector loosened
Terminal loosened from
connector
Breaking of solenoid coil
Water in drum
Inside the drum hot
Insert connector.
Insert connector.
S/W 4 or 5 terminal
Completely close
door.
Replace door AS.
Replace door S/W.
Insert connector.
Insert terminal. S/W
2 or 3 terminal
Replace door S/W.
Door opens after
drainage.
–
"LE"
"LE"
"LE"
"LE"
"LE"
"LE"
"LE"
"LE"
–
Normal sound generated during solenoid operation when
'sliding CAM' is locked/ unlocked to close or open door.
PCB MICOM' cannot open door in case of power failure or forced power S/W off during operation.
Door can be opened in the max. of 5min.
Prevention of door opening to prevent burn caused by hot laundry after
drying
Door does not open normally in case of loosening of connector/ terminal and breaking of solenoid
coil during operation. Administer measures after test according to the following method.
Visually checking connector connection
status
Referring to door lock S/W dismantling
and checking methods below
-
-
Occurrence of continuous 'tick' noise
unlike normal sound
Visually checking connector connection
status
Referring to door lock S/W dismantling
and checking methods below
Referring to picture below
Checking if water level is higher than
safety level