Troubleshooting _ 33
4-2. DIAgNOSTIC CODE & CORRECTIvE ACTION
► These are common troubleshooting procedures for each drum-type washer error mode. For detailed information,
refer to the general repair scripts.
Information
Type
Infor-
mation
Code
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.
- Frequency: Approx. 25.0 KHz with no load
Washing Motor
3C
3C1
3C2
3C3
3C4
3CP
• Washing motor fault
• Incorrect connections of the
washing motor/hall sensor
connector
• Washing motor rotor and stator
fault
• Main PCB faul
• Check the motor Power connector
terminal connections and
contacts.
• Check whether there is the motor
power cable and power connector
or not. (“A”)
• 3C1 is displayed because
overloading occurs due to too
much laundry.
• 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.
► Assy Kit
- Check the
resistance on the
main PCB motor.
(Between pins 1and
3,and 1 and 2 of the
three (3) pins)
- Resistance :
Approx. 2 to 10MΩ
- Check the voltage
when the power is
on.
► Inverter BLDC Motor
- Check the resistance on the Motor Power
Housing connector
- Motor Power Any Terminal 2pin Check 5.0~6.1 Ω
- Check whether there is the motor power cable
and power connector or not. (“A”)
[Motor Power]
A
Washing Motor
3C5
3C6
3C7
3C8
• Over current occurs during
motor operation
• Current sensing error during
motor operation
• Command rpm compared to
the current rpm differences
over 100rpm
• IPM temperature values
abnormally high
• Check the motor Power connector
terminal connections and
contacts.
• Check whether there is the motor
power cable and power connector
or not. (“A”)
• 3C1 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.
WW22N6850NX-A2_SM.indb 33
2018/2/1 17:15:50
