LG WM2901H*A Series Service Manual page 37

VIBRATION SENSOR CHECK
When you check the sensor
error during LQC mode.
Is it displayed "bs2"?
(Refer to 7-2)
Yes
Is the connector connected
to vibration sensor
connected or assembled?
Yes
Check the
No leveling of
washer,
transit bolts
and base
packing
Reconnect or
No
repair the
connector
Is each terminal open?
(Check the all terminal of
the vibration sensor's
connector.
Yes
Is the connector connected
to MAIN PWB assembly
connected or assembled?
(BL2)
Yes
Is Electrical connection
correct?
(Refer to 9-10wiring diagram)
Yes
Replace the MAIN PWB
ASSEMBLY
[Note]
Chances that the cause occurs from the
main controller are very little.
Sensing part of the circuit consists of
only resistors and capacitors.
36
Replace the
No vibration
sensor
Reconnect or
No repair the
connector
Replace the
No
TRANS
CABLE