Troubleshooting _ 21
4. TROUBLESHOOTING
4-1. ERROR MODES
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This is a washer integrated error mode. For detailed information, refer to the general repair scripts.
Error Type
For USA
Causes
Remarks
Water Level
Sensor
1C
- The part of the hose where the water level sensor is located is
damaged (punctured).
- The hose is clogged with foreign material.
- The hose is folded.
- Too much lubricant has been applied to the insertion part of the
air hose.
- Hose engagement error. (disengaged)
- Part fault. (Faulty internal soldering)
- The water level sensor terminal is disengaged.
- Main PBA fault.
Motor Driving
Error and Hall
Sensor Error
3C
- The PBA connector terminal is not connected.
- The motor spin net is not engaged.
- The motor’s internal coil is damaged. (short-circuited or cut)
- The hall sensor terminal is not connected.
- Foreign material (a screw) has entered the motor.
- Motor overloaded due to too much laundry. (Non-sensing)
- The motor hall sensor terminal is not connected.
- PBA fault.
- The motor driving error from the PBA is weak.
Unstable relay operation, etc.
- This occurs due to erroneous operating signals from the motor
hall sensor.
- The IPM terminal of the main PBA is not connected.
- The DD motor cover is out of place.
- The PCB housing terminal is not connected.
- PBA fault.
- DD motor fault.
This error occurs
because of restrained
revolutions.
This error occurs when
an interference is
generated due to too
much laundry, etc.
Water Supply
Error
4C
- Foreign material is entering the water supply valve.
- The water supply valve terminal is not connected.
(Wire disconnected)
- The warm water and rinse connectors are wrongly connected
to each other.
- This occurs if the PCB terminal from the drain hose to the
detergent drawer is not connected. Check whether the
transparent hose is folded or torn.
4C2
- The cold and warm water supply hoses are wrongly engaged
into each other.
- The water temperature is sensed as higher than 50 ˚C in the
Wool or Lingerie courses.
Drain Error
5C
- The pump motor impeller is damaged internally.
- The wrong voltage is supplied to the parts.
- Part fault.
- This occurs due to freezing in the winter season.
- The drain hose is clogged. (Injection error, foreign material)
- Clogged with foreign material.
- The water pump terminal is not connected: rubber band, bills,
cotton, hair pins, coins have collected inside the drain pump
ASSY.
Power Error
9C1,9C2
- Check the consumer’s power conditions.
: Make sure to check the operating voltage. Connect a tester
to the internal power terminals during the Boil operations
and observe the washing machine’s operation carefully.
: Check the voltages.
(An error occurs when under or over voltage is supplied.)
: Check whether a plug receptacle is used.
When the connecting wire is 1m, a momentary low voltage
may drop up to 10 V
- Main PBA fault (sometimes)
