LG T1449TEFT0 Service Manual ▷ View online
49
13) Vibration, Noise or Unbalance Error happens during spin.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Using conditions such as
installation etc.
installation etc.
1. Check whether the washer is
leveled. (Check clearance with out
tub and out case the left gap is the
same as the right and the rear gap is
1.5~2 time bigger than the front gap,
same as the right and the rear gap is
1.5~2 time bigger than the front gap,
between the cabinet and the wash
bowl, when it is leveled.)
bowl, when it is leveled.)
2. Check whether laundry in the wash
bowl is out of balance that can
cause severe vibration & noise.
cause severe vibration & noise.
3. Check whether the pulsator doesn’t
rotate during spin.(To check that,
remove the front lid and than run the
spin only cycle.)
remove the front lid and than run the
spin only cycle.)
Safety Switch
1. Check whether the lever of the
safety switch touchs the outer tub if
touching noise happens.
touching noise happens.
Damper
1. Check whether the outer tub cover
hit the top cover without load
during spin.
during spin.
Not leveled.
Laundry is
unbalanced.
The pulsator
rotates initially
then the inner tub
rotates.
rotates initially
then the inner tub
rotates.
The lever is
bented
bented
Hit
Defect of
installation
installation
Defect of the
clutch
Defect of the
safety switch
safety switch
Defect of the
damper
damper
Level the washer.
Explain that it is not out
of order and it may
happen when big & long
laundry is washed.
of order and it may
happen when big & long
laundry is washed.
Change the clutch
spring-B or the clutch
asm.
spring-B or the clutch
asm.
Change the safety
switch.
Don’t repair and reuse it
because it creates
another problem if it is
wrongly repaired.
switch.
Don’t repair and reuse it
because it creates
another problem if it is
wrongly repaired.
Change four dampers
simultaneously.
(In assembling, check
the position to damper
asm)
simultaneously.
(In assembling, check
the position to damper
asm)
It is very important to find out what kinds of noise & where comes from to settle
noise during spin and accumulately service experiance.
50
14) Power is automatically turned off during operation or immediately
turning on the power switch.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Main voltage
1. It is mostly caused by noise from
mains or transfomerient power cut.
mains or transfomerient power cut.
AUTO OFF switch or
Controller
Controller
1. Check whether power is
automatically turned off when
turning on the AUTO OFF switch
after unplugging the power cord from
the outlet
turning on the AUTO OFF switch
after unplugging the power cord from
the outlet
2. It would be defect of the controller if
power is automatically turned off
immediately when turning on the
power switch even though there is
no defects in the AUTO OFF switch.
immediately when turning on the
power switch even though there is
no defects in the AUTO OFF switch.
Automatically
turned off
turned off
Defect in main.
Mechanical defect
of the AUTO OFF
switch.
of the AUTO OFF
switch.
Explain the cause.
(It happens specially
when a high frequency
equipment is a used
around the washer or in
the case voltage
fluctuation is big)
(It happens specially
when a high frequency
equipment is a used
around the washer or in
the case voltage
fluctuation is big)
Change the AUTO OFF
switch.
switch.
Change the controller.
51
15)
Sensor
Problems
Result of check
How to repair and settle
Assembling the not-
calibrated controller.
calibrated controller.
• If the value is not within 1~26 by
checking the controller group.
Recalibrate or replace the
controller.
controller.
Short
• 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 operation (washing, rinsing, spinning
etc.) of the washing machine, the sensed
value has no change.
Check the harness,
clean the electrode of sensor
Stop the sensor working*
clean the electrode of sensor
Stop the sensor working*
Sensor is out of order
• Temperature sensor fault : “
” displayed
Check the operation of temperature sensor
by the QC test mode.
by the QC test mode.
*Stop/Reset the sensor: Stop or reset the sensor by entering Test mode.
Change the sensor or
controller
Check the Harness
controller
Check the Harness
The sensor is automatically
stopped by the accumulated
foreign materials.
stopped by the accumulated
foreign materials.
• 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..
the sensor value of the product is 5 or more..
Change the sensor,
clean the electrode of sensor
Stop the sensor working*
clean the electrode of sensor
Stop the sensor working*
(1) Malfunction
Problems
Result of check
How to repair and settle
the accumulated foreign
materials on the sensor
materials on the sensor
• 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..
by a jig and the sensor value of the
product is 5 or more..
Change the sensor,
clean the electrode of sensor
Stop the sensor working*
clean the electrode of sensor
Stop the sensor working*
Inaccurate detecting
• If the value measured from the jig is
normal but the consumer is not satisfied
with
with
Change the group of the
controller by entering Test
mode.**
controller by entering Test
mode.**
**
- If a user wants to detect a Detergent more than the current one
- 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)
(2) Inaccurate detecting
52
(3) Activate/Deactivate Sensor:
Turn the power switch on by pressing WATER LEVEL+STAIN LEVEL+RESERVATION button together.
Test mode
: Only I-SENSOR LED is on and display shows current sensing mode
Current display
: temperature & conductivity sensing is disabled
: temperature sensing is enabled, but conductivity is disabled.
: temperature & conductivity sensing is enabled
1. Press WATER LEVEL BUTTON once:
Press WATER LEVEL BUTTON again : power off
2. Press RINSE BUTTON once:
Press RINSE BUTTON again : power off
3. Press START/PAUSE BUTTON once:
Press START/PAUSE BUTTON again : power off
(4) How to change Controller Group
Turn the power switch on by pressing WATER LEVEL + PROGRAM and STAIN LEVEL button together.
Initial Test mode display
: All LEDs are off,except I-SENSOR LED
Display the number of TR calibration times : Display “
” means not calibrated, “
” 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
Program button to decrease by one
2. Press START/PAUSE button once : Display the current Controller Group (1~26)
Press START/PAUSE button again : increase the controller group by one (display the changed group)
START/PAUSE button to increase by one
START/PAUSE button to increase by one
The buzzer sounds if there is no controller group.
Click on the first or last page to see other T1449TEFT0 service manuals if exist.