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
LID
LOCK
ERROR
BASIS
Check the connections at the
pressure switch and at the
BLUE 6-pin connector at the
main board.
Check the pressure sensor
(21~23Ω ±10%) and
connection
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 BLUE
6-pin connector on the main board.
Check the connections at the
stator and at the yellow 3-pin or
BLUE 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.
Check the lid lock SW trying
locking
Check the balance of the lid
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.
If trying, replace the Lid lock
SW or not trying replace the
Main PCB
Replace the lid or se the
balance