22 _ Troubleshooting
Code Type Code Mode Causes Corrective Actions Description of Photo
Water Supply
Code
►ExtraHigh
LED Flash
This may occur when the
water supply valve is
defective.
• If the water supply valve is broken, replace
the valve.
• Check if the water supply is blocked due
to an alien substance in the valve or check
if the water is supplied to the machine. If
a problem is found, take the appropriate
countermeasure.
• Check if the water supply is blocked due to
the water being frozen.
• If the PBA Relay malfunctions, replace the
PBA.
1. Measure the resistance of the
water supply valve.
- Resistance:0.9KΩto1.1KΩ
between the terminals of the
Water Supply Valve.
2. Check whether there is foreign
material in the Water supply
valvelter.
►Hot&Low
LED Flash
This may occur when the
main PCB is defective.
This may occur due to
frozen water.
Drain Code
►LowLED
Flash
This may occur when the
drain pump is defective.
• Check if there is any alien substance inside
the draining pump motor.
• Check the natural drain in the same manner.
• Check if there are any incorrect connections
or broken wires.
• If the machine malfunctions intermittently
when the wash tub water temperature is
high, replace the pump.
• If the motor stops due to the water being
frozen in winter, remove the frozen water
referring to the relevant repair procedures.
Check the drain pump resistance.
(Resistance:13.5~16.5Ω)
This may occur due to
frozen water.
Check if there is any alien
substance inside the
draining pump.
This may occur when the
main PCB is defective.
Communication
Code
►WarmLED
Flash
The signals between the sub
and main PBAs are not
sensed.
• 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.
-
Incorrect wire connections
between the sub and main
PBAs.