DOWNLOAD LG TR1103AEP5 Service Manual ↓ Size: 4.18 MB | Pages: 58 in PDF or view online for FREE

Model
TR1103AEP5
Pages
58
Size
4.18 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
tr1103aep5.pdf
Date
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Where, what & how to check?
PE Error displayed.
Less then 26.2 kHz
46
Pressure Switch
1. Is there PE error on the display which
means Ball Pressure Senosr (Pressure
Switch) error
2. Check frequency of the Ball Pressure
Sensor(Pressure Switch) without load if
wash is proceeding without filling.
Controller
1. Defect of controller is highly possible if
inlet valve and Ball Pressure Sensor
have no defects in the above.
Connector is taken off, or
lead or coil is open.
Defect of the Ball Pressure
Sensor (Pressure Switch)
Reconnect the connector or
change leads. Change the
Ball Pressure Sensor
(Pressure Switch) if coil is
open.
Change the Ball Pressure
Sensor (Pressure Switch).
Change the controller.
4) Water doesn’t come into the wash tub.
Result of Check
Possible Cause
How to repair & settle
Water mains cut.
Dont tumed on.
Connected opposite.
Selected opposite.
Filters blocked by
foreign substance.
A connector is taken
off.
∞ Ω
Mains cut.
Mistake of use.
Wrong installation.
Mistake of use.
Don’t clean.
Defect of the inlet valve.
Defect of contact.
Coil is open
Explain.
Turn on the tap.
Correct their locations and
turn on the tap.
Explain how to use.
Clean them by brush and
explain cleaning regulary
them.
Change the inlet valve.
Reconnect it or remove
the causes to make poor
connection.
Change the inlet valve.
Inlet Valve
1. If water doesn’t come though the inlet
valve works(electric sound occurs)
1) Check whether water mains is cut.
2) Check whether tabs are turned on.
3) HOT & COLD tab are opposite
connected.
4) Wrongly select Water Temperature
option.
5) If there are no problems in the above,
check the inlet valve filters after
disconnecting the water supply hoses.
6) If there are no problems in the above a
diaphragm hole in the valve is blocked
by foreign substance or the plunger in it
is locked.
2. If the inlet valve doesn't work(there is no
electric sound)during filling cycle.
1) Check whether it’s connectors are taken
off or they have poor connection.
2) Check resistance of the inlet valve.
47
5) Water fills continuously of 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 Ball
Pressure Sensor (Pressure
Switch), it is bent or blocked,
repair that.
Repair the blocked hole.
Change the inlet valve.
Change the controller.
48
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
Black / (Ground)
White
Blue
Red
49
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 drain hose is
blocked by foreign objects. It may
happen in case of the hose is a little
kinked.
There is pump
working sound.
∞ Ω
Defect in connection
part.
Connection part has
no defects.
Kinked.
Blocked.
Drain pump is blocked by
foreign objects.
It’s coil is open.
Defect in connection part.
Defect of the controller.
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.
Remove the objects and
reinstall so that it can’t
be kinked.
8) Water drains thought it is not the time of drain.
Where, what & how to check?
Result of Check
Possible Cause
How to repair & settle
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.
Bellows deformed.
Works.
Defect of PV Bellows.
Defect of the controller
(Triac defect)
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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