LG WF-T857 Service Manual page 52

15) Sensor
(1) Malfunction
Problems
Assembling the not-
calibrated controller.
Short
The sensor is automatically
stopped by the accumulated
foreign materials.
Sensor is out of order
*Stop/Reset the sensor: Stop or reset the sensor by entering Test mode.
(2) Inaccurate detecting
Problems
the accumulated foreign
materials on the sensor
Inaccurate detecting
**
- If a user wants to detect a Detergent more than the current one
: Increase the group value (by 1~2 step)
- If a user wants to detect a Detergent less than the current one
: Decrease the group value (by 1~2 step)
Result of check
• If the value is not within 1~26 by
checking the controller group.
• When checking the value of the
electrode sensor by Test mode during
the operation (washing, rinsing, spinning
etc.) of the washing machine, the sensed
value has no change.
• The difference between the sensing value
measured from the supplied water by a jig and
the sensor value of the product is 5 or more..
• Temperature sensor fault : "
Check the operation of temperature sensor
by the QC test mode.
Result of check
• The difference between the sensing
value measured from the supplied water
by a jig and the sensor value of the
product is 5 or more..
• If the value measured from the jig is
normal but the consumer is not satisfied
with
52
How to repair and settle
Recalibrate or replace the
controller.
Check the harness,
clean the electrode of sensor
Stop the sensor working*
Change the sensor,
clean the electrode of sensor
Stop the sensor working*
" displayed Change the sensor or
controller
Check the Harness
How to repair and settle
Change the sensor,
clean the electrode of sensor
Stop the sensor working*
Change the group of the
controller by entering Test
mode.**