LG WFS1939EKD Service Manual page 44

Display
Coin stuck • Occurs when motor is
(When there is a
problem with the motor
due to foreign object)
THERMISTOR • Thermistor has a bad
Power • The washer experienced a
Failure
ERROR
Drain Valve Problem • When drain valve is not
OVER • When water is overowed
FLOW
ERROR
Problem Diagnosis
Standard
locked
connection or failed
power failure
working
Estimated Cause of
Abnormal Condition
1. When foreign object such as
coin, pin, or clip entered the
washing plate
• Check the connections at the
Thermistor and at the WHITE
3-pin connector at the main
board
• Test thermistor to determine it is
not detective
• When occurred a power failure.
• When the power cord is fallen
off suddenly.
• Connection part contact defect
• Check the valves to be sure
there is no input leakage. Then
check the drain hose and make
sure the drain pipe is between
0.9 ~ 1.2 m (36 and 48 inches)
above the oor.
• Check for blockages and leaks
in the air hose between the tub
and the pressure switch.
• Check and repair any air
leakages at the air hose
connector on the outer tub and
at any connecting parts.
43
Action
• Remove the coin or foreign
object stuck between the
washer vane with pliers,
etc.
• Reseat the connector.
• Replace the thermistor if
necessary.
• Restart the cycle.
• Reconnect the power cord.
• Check the connection part
reconnection defect and
correct.
• Replace the new drain
valve.
• Install the drain hose
between 0.9 ~ 1.2 m (36
and 48 inches) above the
oor.
• Replace pressure sensor
switch
• Remove the foreign
objects in pressure sensor
switch air hose.