Troubleshooting _ 21
4-3. DIAGNOSTIC CODE & CORRECTIVE ACTION
No
Check Code
(Diagnostic code Image)
Description
Corrective Action
1
Hot LED flash
Lid is open when
washer is running.
• Check if a HOT LED flashes during the boiling course.
• As this code occurs because the door is opened, close the
door.
• Since 120V power is connected, check if the power cord is
disconnected or check the insulation status and repair it if
necessary.
• If the main PBA door detection circuit is defective, replace it.
2
Warm LED flash
Communication code
between SUB PBA
and MAIN PBA.
• 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.
3
Eco Warm LED flash
Button is not working
properly.
• Check whether either the Power switch or a tact switch is
continually pressed.
• Check whether the service PBA holding screws are fastened
too tight. If they are fastened too tight, loosen them a little.
• If the main PBA switching IC on/off code has occurred,
replace the main PBA.
• The “Eco Warm” LED flashes if the main relay connections
are incorrect. Check the connections. If there is no flashing in
the connections, replace the main PBA.
4
Cool LED flash
The Water Level
sensor is not working
properly.
• Check the water level sensor terminal connections.
• Check the part code of the water level sensor, because if an
incorrect part is used, an abnormal operation may occur.
(Abnormal operation)
• If the water level sensor is defective, replace it.
• If no problems were found for all of the procedures above,
replace the PBA.
5
Extra High LED flash
Your Washer has tried
to fill but was unsuc
-
cessful.
• If the water supply valve is broken, replace the valve.
• Check if the water supply is blocked due to an alien sub
-
stance in the valve or check if the water is supplied to the
machine. If a problem is found, take the appropriate counter
-
measure.
• Check if the water supply is blocked due to the water being
frozen.
• If the PBA Relay malfunctions, replace the PBA.
6
High LED flash
Your Washer has tried
to fill but has not
reached the proper
water level.
• Since this occurs when an alien substance is in the Draining
Bellows, for natural draining, remove the alien substance.
• If the drain motor is defective, replace the motor.
• Check if the water leaks from the tub connection part.
7
Mid LED Flash
A fault is detected
in the water level
sensor.
• The water level sensor is replaced.
