Troubleshooting _ 25
4-3. CORRECTIVE ACTIONS FOR EACH ERROR CODE
► These are common troubleshooting procedures for each drum-type washer error mode. For detailed information,
refer to the general repair scripts.
Error Type
Error
Mode
Causes
Corrective Actions
Description of Photo
Water Level
Sensor
1C
• 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.
- Check it after the water
level sensor and the
connector are connected.
Checking Part :
Pink Color Wire Orange
Color Wire.
- Frequency :
Approx. 25.5 KHz with
no load
Washing Motor
Error and Hall
Sensor Error
3C
• 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 6.0 Ω (at 25°C)
► Check the motor Hall
Sensor
Check the resistance on the
main PCB motor
(Between pins 1 and 3, and
1 and 4 of the four (4) pins)
- Resistance
: Approx. 2 to 4 MΩ
- Check the voltage when
the power is on.
Communication
Error
AC
• 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.
-
Door Error
DC
• Door switch fault
• Main PCB fault
If a dS error occurs, check
whether it occurs during the
Boil cycle.
- If it is detected that the door
is open, close the door.
The 120V is directly connected
to the door.
Check and repair the power
wire connections and
insulation state.
Check the door switch.
Replace if faulty.
Check the main PBA door
sensing circuit. Replace if
faulty.
► TYPE 1
Check the door switch
Resistance.
The resistance of 1 and 3
Pin Must be approximately
175Ω.
DC1
