LG WT-R857 Service Manual page 51

(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)
(3) How to change Controller Group
Turn the power switch on by pressing WASH +PROGRAM and Reservation button together.
Initial Test mode display : All LEDs are off, except I-SENSOR LED
Display the number of TR calibration times : Display " 0 " means not calibrated, " 1 " for the first time and so on.
1. Press Program button once:Display the current Controller Group (1~26)
Program button again :Decrease the controller group by one (display the changed group)
Program button to decrease by one
2. Press START/PAUSE button once :Display the current Controller Group (1~26)(1~26)
Press START/PAUSE button again :increase the controller group by one
(display the changed group)
START/PAUSE button to increase by one
The buzzer sounds if there is no controller group.
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
51
How to repair & settle
Change the sensor, clean the electrode of
sensor Stop the sensor working*
Change the group of the controller by
entering Test mode.**