DOWNLOAD LG WT-E1275TP Service Manual ↓ Size: 2.31 MB | Pages: 71 in PDF or view online for FREE

Model
WT-E1275TP
Pages
71
Size
2.31 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
wt-e1275tp.pdf
Date

LG WT-E1275TP Service Manual ▷ View online

61
5) Water fills continuously or intermittently.
Where, what & how to check?
Result of Check
Possible Cause
How to repair & settle
Wrong Installation/Leakage
1. Check whether the drain hose is 
laying down on the floor. 
(For pump model)
2. Check where water leaks.
Pressure Switch
1. Check the pulsator is rotating when 
water fills continuously.
2. If there is no defect in the pressure 
swith, check whether the air hole of 
the outer tub is blocked.
Inlet Valve
1. Does water fills even though it is not
energized (power is off)?
Controller
1. Does water fill immediately after the
power switch turns on before pushing 
the start/pause button.
Drain hose 
laying down.
Water leaks 
from a part.
It doesn’t 
rotate.
Blocked.
Water fills.
Wrong installation. 
Defect of the part.
Water pressure is
not sensed.
Air hole blocked.
Defect of the inlet
valve.
Short circuit of the 
triac of the 
controller.
The drain hose 
should be hung on the 
stand-pipe or the tub.
Change the part.
Repair it.
Check the tube of the  
pressure swith,if it is bent
or blocked, repair that.
Repair the blocked hole.
Change the inlet valve.
Change the controller.
4) Water doesn’t come into the wash bowl.
Where, what & how to check?
Result of Check
Possible Cause
How to repair & settle
Pressure Switch
1. Is there PE error on the display 
which means pressure switch error
2. Check frequency of the pressure 
switch without load if wash is 
proceeding without filling.
Controller
1. Defect of controller is highly possible
if inlet valve and pressure switch have
no defects in the above.
Reconnect the connector
or change leads. Change
the pressure switch if coil
is open. 
Change the pressure
switch.
Change the controller.
PE Error 
displayed. 
Less then 
26.2
Connector is taken
off, or lead or coil is
open.
Defect of the 
pressure switch.
62
6) Display “LE” message and doesn’t work
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
1. In initial state display “LE” message.
1) Measure voltage of hall sensor   
asm.
2) Check resistance of the motor.
Gray-White
DC 15V
OV
Gray-Red
-Blue
DC 12V
OV
Normal
Resistance 
No defect
Poor
No defect
Poor
Motor coil is
open.
Contact defect of
the leak.
Change the PCB Asm
Change the PCB Asm
Change the motor
Remove the cause
Brown
Hall sensor 
assembly
DC 15V
In PCB assembly
Yellow (Ground)
Blue
Red
63
7) Water does not drain.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Drain Pump
1. Check whether there is drain pump
working sound.
2. Check resistance between terminals
if there is no working sound of the 
drain pump.
3. Check connection parts of the leads 
if there is no working sound and its 
resistance is normal.
Drain Hose
1. Check whether the drain hose is put 
in a narrow space and kinked.
2. Check whether the internal drain 
rubber asm is bent.(For Non-pump 
model)
3. Check whether the end of the drain 
hose submerged into water or 
higher than required.
(For non-pump model)
4. Check whether the drain hose is 
blocked by foreign objects. It may 
happen in case of the hose is a little 
kinked.
PV Case
(for Non-Pump Model only)
1. Check whether the PV asm is
blocked by foreign objects.
There is pump
working sound.
Defect in 
connection part.
Connection part 
has no defects.
Kinked.
Bent.
Submerged or 
higher than 
required.
Blocked.
Blocked.
Drain pump is
blocked by foreign 
objects.
It’s coil is open.
Defect in 
connection part. 
Defect of the 
controller.
Defect of 
installation.
Defect of the drain
rubber asm.
Defect of 
installation. 
Blocked hose.
Disassemble the drain
pump cap and remove
the foreign objects in the
pump casing.
Change the drain pump.
Repair defected 
connection.
Change the controller.
Reinstall so that it should
not be kinked.
Change the drain rubber
asm.
Re-install so that it can’t 
be submerged or not 
higher than required.
Remove the objects and
reinstall so that it can’t be
kinked.
Separate the drain motor
from the PV link,
disassemble PV cover
and then remove the
foreign objects within 
PV case.
Check the washer works
normally after repair 
and reassembling them.
(PV link & drain motor
lever should be 
assembled accuratel.)
64
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Drain Motor
(For Non-Pump Model only)
1. Check resistance of the drain 
motor if it can not pull the PV link.
Resistance is 
normal.
Drain motor coil is
open.
Contact defect in 
connection parts 
or defect of the 
controller.
Change the drain motor 
Check the washer 
works normally after 
reassembling.
(PV link & drain motor 
lever should be
assembled accurately.)
Change the controller if 
there is no defects in the
connection parts.
8) Water drains though it is not the time of drain.
Where, what & how to check?
Result of Check
Possible Cause How to repair & settle
Drain Motor
(for Non-Pump Model only)
1. Check whether the drain motor is 
normally returned after turning 
power off.
(It is considered normal if the lever 
of the drain motor is fully pulled out 
by the PV spring)
PV Case
1. If water drains though the drain 
motor is normally returned, check 
whether PV asm is blocked by 
foreign objects or the bellows in 
the PV asm is deformed.
Controller
1. Check whether the drain motor or 
the drain pump works immediately
after power is turned on.
Blocked.
Blocked.
Bellows
deformed.
Works. 
Defect of the drain
motor.
Defect of PV 
Bellows.
Defect of the 
controller(Triac 
defect)
Drain Hose
1. Check whether the drain hose is
installed properly so that the
discharge hight is about
0.9~1.2m from the floor.
The discharge
height is lower
than
recommendation.
Wrong installation
of the drain hose.
Put the outlet of drain
hose between 0.9m and
1.2m
Change the drain motor.
Remove the objects in 
the PV asm.
Change the PV bellows.
(The bellows may swell 
up if it contact petroleum
or petrochemical 
substance because it is 
made of rubber)
Change the controller.
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