LG WT4801CW Service Manual page 27

ERROR DECISION
ERROR
PRESSURE
·Pressure switch has a
SENSOR bad connection or the
switch has failed.
OVER
FLOW
ERROR
MOTOR
ERROR
BASIS
·Check the connections at the
pressure switch and at the
BLUE 4-pin connector at the
main board.
·Test the pressure switch in
TEST MODE. If the initial
reading is less than 60 or more
than 104, the switch has failed
and must be replaced.
·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 floor.
·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.
·Check the connections at the
hall sensor and at the WHITE
6-pin connector on the main
board.
·Check the connections at the
stator and at the yellow 3-pin or
WHITE 6-pin connector on the
main board. Test the stator to
determine it is not defective.
·Test hall sensor to determine it
is not defective.
·Turn the drum to verify the
bearings are not locked.
CAUSE FOR ERROR
OCCURRENCE
27
REMEDY
·Reseat the connector.
·Replace the switch.
·Install the drain hose between
0.9 ~ 1.2 m (36 and 48 inches)
above the floor.
·Replace pressure sensor
switch
·Remove the foreign objects
in pressure sensor switch
air hose.
·Replace the stator if necessary.
·Replace the hall sensor if
necessary.
·Replace the bearings if
necessary.