Troubleshooting _ 21
Check Type
for uSA
Causes
Remarks
Door Check
DC
- A switch contact Check because of a deformation of the door
hook.
- When the door is pulled by force.
When the door is not
opened after the door
open operation.
- This occurs in the Boil wash because the door is pushed due
to a pressure difference from internal temperature changes.
When the door is not
locked after the door
close operation.
DC1
- The door lock switch terminal is connected incorrectly.
- The door lock switch terminal is broken.
- This occurs intermittently because of an electric wire leakage
- Main PCB fault.
DC2
- This occurs if the Power switch is turned on/off
continually and too much heat is generated (This
check is difficult to be reproduced.)
Heater Check
HC
HC1
HC2
- The washing heater is short-circuited or has a wire
disconnected.
- The washing heater in the tub has an Check.
(Contact Check, temperature sensor fault)
- If the water level sensor operates without water because water
is frozen or for any other reason and the temperature sensor
engaged at the bottom to prevent overheating for the washing
heater detects a temperature of 100 to 150 ˚C, the washing
machine turns the input power off.
- The drying heater is short-circuited or has a wire disconnected.
If the heater has no
Check, this occurs
because of a PBA relay
malfunction.
Water Leakage
Check
LC
LC1
- Heater engagement fault. (out of place)
- The air hose is out of place and water leakage occurs during
the spin cycle.
- The tub back at the safety bolts fixing part is broken.
- Water leakage occurs at the front with foaming because of too
much detergent.
- Water leakage occurs because the connecting hose to the
detergent drawer is connected incorrectly.
- The drain pump filter cover is engaged incorrectly.
- Water leakage occurs at the drain hose.
- The duct condensing holding screws are worn.
- The nozzle-diaphragm is engaged in the opposite direction or
the rubber packaging is omitted.
- Water leakage occurs because the screws that hold the tub
back and front in place are fastened incorrectly.
- The leakage sensor is faulty.
Overflow Check
OC
- Water is supplied continually because the water level detection
does not work.
- Because the drain hose is clogged and there is an injection
Check (at a narrow section), the water level detection does not
work and water is supplied continually.
- Water is supplied continually because of freezing or because
there is foreign material in the water supply valve.
- This Check may occur when the water level sensor is
degraded.
This Check occurs
because the water
level sensor terminal is
out of place.
Temperature
Sensor Check
TC1
TC2
- The washing heater sensor in the tub has an Check.
(Contact Check or temperature sensor fault)
- The connector is connected incorrectly or is disconnected.
- If the water level sensor operates without water because the
water is frozen or for any other reason and the temperature
sensor engaged at the bottom to prevent overheating for the
washing heater detects a temperature of 100 to 150 ˚C, the
washing machine turns the input power off.
Heater sensor fault
: When the connector
is connected
incorrectly or has a
wire disconnected or
contact Check
TC4
- IPM temperature is abnormally high.
unbalance
Check
UB
- As laundry causes this Check, check the laundry.
- Find the reason for the unbalance and solve it as directed in
the user manual.
