Troubleshooting _ 21
4. TROUBLESHOOTING
4-1. INFORMATION MODES
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This is a washer integrated information mode. For detailed information, refer to the general repair scripts.
Check 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 Check. (disengaged)
- Part fault. (Faulty internal soldering)
- The water level sensor terminal is disengaged.
- Main PBA fault.
Motor Driving
Check
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)
- Foreign material (a screw) has entered the motor.
- Motor overloaded due to too much laundry. (Non-sensing)
- PBA fault.
- The motor driving Check from the PBA is weak.
Unstable relay operation, etc.
- 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 Check occurs
because of restrained
revolutions.
This Check occurs
when an interference
is generated due to too
much laundry, etc.
Water Supply
Check
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.
- The water supply hoses are kinked thereby restricting water flow.
4C2
- The cold and warm water supply hoses are wrongly engaged
into each other.
- The temperature of the water supplied through the dry valve
during a dry cycle is sensed as higher than 70 ˚C.
- The water temperature is sensed as higher than 50 ˚C in the
Wool or Lingerie courses.
The water supplied for
1 minute drying the
drying cycle is 0.3 ~
0.4 L.
Drain Check
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 Check, 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 Check
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 or Dry
operations and observe the washing machine’s operation
carefully.
: Check the voltages.
(An Check 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)
