WP-1150 - LG Washing Machine Service Manual (repair manual)

Model
WP-1150
Pages
26
Size
4.72 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
wp-1150.pdf
Date

View LG WP-1150 Service Manual online

WASHING MACHINE
SERVICE MANUAL
CAUTION 
BEFORE OFFERING SERVICE, 
READ THIS MANUAL CAREFULLY 
TO DIAGNOSE TROUBLES CORRECTLY.
MODELS : 
WP-891R(S)(P)/WP-970R(S)(P)/WP-988R(S)(P)
                   WP-1050R(S)(P)WP-1070R(S)(P)/WP-1320R(S)(P)
WP-997RT/WP-1150
-2-
CONTENTS
1. CAUTION ON THE OPERATION ........................................................................3
2. SPECIFICATIONS ...............................................................................................4
3. CONTROLS LOCATION......................................................................................5
4. DISASSEMBLY INSTRUCTIONS........................................................................6
5. ADJUSTMENT ..................................................................................................15
6. EXAMINATION AFTER REPAIRING.................................................................15
7. TROUBLESHOOTING GUIDE ..........................................................................18
8. SCHEMATIC DIAGRAM ....................................................................................19
9. EXPLODED VIEWS AND REPLACEMENT PARTS LIST.................................21
• APPENDIX(The types of power supply cords) ....................................................31
-3-
1. CAUTION ON THE OPERATION
1-1. Safety precautions 
1. MOVING PARTS
Never put your hand into the
spin dryer basket until it has
come to a complete stop.
Also never put your hand into
the wash tub while washing
or rinsing.(Either of these
actions can be extremely
dangerous.)
2. ELECTRIC POWER CORD
• If the power cord is
damaged in any way, it
could cause a malfunction,
an electrical shock, or a fire.
• If the power cord is
damaged, it must only be
replaced by a repair shop
appointed by the
manufacturer, because special purpose tools
are required.
• When unplugging the power cord from the
electrical outlet, always be sure to take hold of
the plug, and never pull on the cord.
• Do not set heavy objects on the power cord and
be careful that the cord does not become
pinched by the washing machine.
3. HOT WATER
Do not use water hotter than 50°C; doing so
could cause damage to some of the plastic parts.
4. WATER AND THE WASHING
MACHINE
CONTROLS
Be careful not to allow
water to come in contact
with the controls of the
washing machine ; doing so
could cause a malfunction or an electrical shock.
5. INFLAMMABLE MATERIALS
Do not put clothing, rags or other materials which
have been soaked in an inflammable substance 
(such as benzene, paint thinner, kerosene, etc.)
into either the wash tub or the spin tub ; doing so
could cause a fire.
6. WHEN NOT IN USE
If the washing machine is not used for a long
period of time, unplug the power cord from the
electrical outlet.
7. HEAT AND FLAME
Many parts of this washing machine are made of
flammable plastics ; never place hot or burning
objects on or near the washing machine.
8. CHILDREN
Guard against small children from playing near or
on the washing machine.
1-2. Servicing precautions
Before attempting to service or adjust any part of
the washing machine, disconnect the electrical
power supply from the wall outlet and remove the
water in the washing machine.
1-3. Installation
1. LOCATION
• Select the installation location.
• Because of the danger of electrical shock, do
not place the washing machine in a location
where it would be exposed to rain or excessive
moisture(such as a steam bath).
• Many of parts of this washing machine are
made of plastic, and could catch fire or become
damaged if exposed to an open flame,
extremely high temperatures, or strong direct
sunlight.
• Place the washing machine on a flat level
surface and allow a clearance of at least 5cm
between the washing machine, walls or other
objects.
• Lower the drain hose so the water drains from 
the open end, and reroute the drain hose
suitable to the position or the washing machine.
• (Pump Model Only)
Place the end of the drain hose in a sink at a
height of no more than 1 meter(standard height:
0.8m).
2. EARTH WIRE CONNECTION
For models with a two-prong plug, be sure to
earth to prevent electrical shock.
• If the water tap and indoor piping are both
metal, wind the earth wire around the base of
the water tap.
• If either the water tap or indoor piping is not
metal, obtain instructions from the dealer how to
bury a ground rod.
• Never connect the earth wire to a gas pipe.
3. POWER SOURCE
• Plug the power cord into an electrical outlet
indicated on specification label.
• Do not plug the washing machine into the same
electrical outlet with other electric appliances.
2-pole single phase shadding coil motor
80W
20W
1m
AC110~120V, 60Hz / AC 127V, 60Hz
AC 220V, 50Hz / AC 230~240V, 50Hz
AC 220V, 60Hz
AC 110~127 / 220V, 50/60 Hz
0.8 sec. ON - 1.5 sec. OFF  or  1.8 sec. ON - 3.2 sec. OFF  or  2.5 sec. ON - 2.5 sec. OFF
1.0 sec. ON - 1.3 sec. OFF  or  2.6 sec. ON - 2.2 sec. OFF  or  3.5 sec. ON - 1.5 sec. OFF
1.2 sec. ON - 1.1 sec. OFF  or  3.6 sec. ON - 1.2 sec. OFF  or  4.0 sec. ON - 1.0 sec. OFF
Turn the adjustable legs to set the washer horigon tal (2EA) 
Non pump : 31.5kg, Pump : 33kg
820x482x986(mm)
Polypropylene resin
4-pole single phase condenser induction motor
240W
220W
260W
280W/230W
90W
Swirl system
H : 61  , M : 54  , L : 46  
Mechanical type, 0~15min.
50Hz : 90rpm.,   60Hz : 100rpm.
Polypropylene resin
50Hz : 1300rpm. over, 60Hz : 1500rpm. over
Mechanical type, 0~5min.
4-pole single phase condenser induction motor
190W/220W
Centrifugal extraction system
200W
230W
180W
40W
Motor type
Power consumption(Rated input)
Motor output
Lift head of draining
 
Wash tub
Material
Water level 
 
Wash timer 
Pulsator revolution
Motor type
AC220V, 50Hz 
AC230~240V, 50Hz
AC110~120V, 60Hz
AC127V, 60Hz
AC127/220V, 60Hz
Motor output 
System
MODEL
Dimensions (WxDxH)
Net weight
Power source  Single
Dual 
GENTLE
NORMAL
STRONG
Adjustable leg (Option)
-4-
2. SPECIFICATION
WASH SIDE
Power
consumption
(Rated input)
DRAIN PUMP (Pump model only)
Wash selector
(Reversible)
 
Material
r. p. m.
Spin timer
Motor type
AC 220V, 50Hz 
AC 230~240V, 50Hz
 
AC 110~120V, 60Hz 
AC 127V, 60Hz 
AC 127/220V, 60Hz 
Motor output
System
SPIN SIDE
Power
consumption
(Rated input)
Spin dryer
basket
-5-
3. CONTROLS LOCATION
3-1. NAMES OF EACH PARTS
3
4
6
8
9
10
11
12
13
14
15
(for pump model)
13
5
2
1
(1) Panel
(2) Panel deco
(3) Washing cover
(4) Water supply selector lever
(5) Overflow filter
(6) Wash tub
(7) Roller Pulsator
(8) Spin dryer cover
Spinning will stop if the cover is opened
during operation.
Spinning will not start unless the cover is
closed.
(9) Safety cover-2
(10) Spin dryer basket
(11) Safety cover-1
(12) Earth wire
(only on models with a two-prong plug)
(13) Drain hose
(14) Power supply cord
3-2. NAMES OF CONTROL PANEL PART
(1) Water Supply Inlet : Connect the inlet hose from the water faucet to feed water to the tub.
(2) Wash Timer : Select the desired time for washing or rinsing.
(3) Wash Program : Set the selector to "Gentle", "Normal", "Strong" according to kinds and quantity of the laundry.
(4) Drain Selector
Non pump model : Select "Wash Rinse" for washing and rinsing, and "Drain" to drain the water out of the wash tub.
Pump model : Select "Wash Rinse" for washing and rinsing with an overflow drain, and "Drain" to drain the
water out of the wash tub, and "Off " to turn off the drain pump.
(5) Spin Timer : Select the desired time for spinning.
(6) Water Supply Selector : Set the water supply selector lever to "WASH" for washing and rinsing, to "SPIN"
for interim spin rinse.
Spin Timer
2
3
4
5
6
1
WASH
Drain Selector
Wash Program
Water Supply Selector
Wash Timer
Spin Timer
2
3
4
5
6
1
WASH
Drain Selector
Wash Program
Water Supply Selector
Wash Timer
**For pump model only**
Off
Non Pump Model
Pump Model
-6-
4. DISASSEMBLY INSTRUCTIONS
4-1. Panel Assembly replacement
1. Remove the screws fastening the back cover and
remove the back cover(Fig. 1).
NOTE
Before attempting to replace or adjust any
part of the washing machine, disconnect the
electrical power supply from the wall outlet.
NOTE
• When replacing the panel assembly, fix the
plunger valve strap properly.
• Securely solder connecting lead wires, or
used connectors and insulate well to
prevent overheating.
2. Remove the vinyl tape fastening the lead wires
closed connector to the plunger valve assembly and
disconnect the lead wires(Fig. 2).
4. Remove the screws fastening the panel(Fig. 4).
5. Lift up the panel assembly and lay it down on the
top(Fig. 5).
To assemble the panel assembly, reverse the
disassembly procedure.
3. Disconnect the plunger valve strap from the plunger
valve rod(Fig. 3).
Rod
Plunger valve strap
Fig. 1
Fig. 2
Fig. 4
Fig. 3
Fig. 5
Fig. 6
Fig. 8
❒  
Water supply system replacement
1. Pull out the knobs(Fig. 6)
3. Remove the switch body from the panel.
4. Push the supply selector guide in the direction of
the arrow(Fig. 8).
To assemble the water supply system to the switch
body, reverse the above disassembly procedure.
2. Pull out the supply select hose from the supply
select guide(Fig. 7).
Supply select guide
Fig. 7
-7-
2. Remove the screws and separate the switch body
from the panel(Fig. 10).
3. Remove the spin timer by pushing the claw holding
the spin timer in the direction of the arrow(Fig. 11).
To assemble the timers to the switch body, reverse
the disassembly procedure.
❒  
Mini Switch replacement
(Pump model only)
1. Pull out the terminals and remove the screw
fastening the mini switch(Fig. 14).
2. Separate the mini switch from the switch body(Fig. 14).
To assemble the mini switch to the switch body,
reverse the disassembly procedure.
Fig. 10
Fig. 9
Fig. 11
Fig. 14
❒  
Timer replacement
1. Pull out the knobs(Fig. 9)
To assemble the drain select arm to the switch body,
reverse the disassembly procedure.
❒ 
Drain Select Arm replacement
1. Disconnect the plunger valve strap from the drain
select arm(Fig. 12).
2. Lift the drain select arm in the direction of arrow and at
the same time rotate the drain select arm in the direction
of the white arrow until the hook of the drain select arm
matches the groove of the switch body(Fig. 13).
Drain select arm
Plunger valve strap
The Hook of 
Drain Select Arm
The Groove of 
Switch Body
Fig. 12
Fig. 13
Back side
Front side
4. Remove the screw fastening the cycle timer, pull
out the terminals from the buzzer and remove the
cycle timer(Fig. option1).
Fig. option
-8-
4-2. Spin Dryer Cover replacement
After removing the back cover, the panel assembly,
proceed as follows:
1. Open the spin dryer cover and separate  brake wire
strap from the brake wire assembly (Fig. 15).
Brake wire starp
Brake wire assembly
4-3. Spin Dryer Basket Assembly
replacement
After removing the back cover, proceed as follows:
1. Take hold of the front of the safety cover-1. 
2. Pull the tub by the other hand.
3. Pull the safety cover-1 upward.(fig. 18)
Safety cover-1
Safety cover-2
 Spin dryer cover
2. Remove the Q-spring(Fig. 16).
3.Remove the screw fastening the door switch and
remove the door switch(Fig. 16).
4. Remove the spin dryer cover by widening between the
hinge hole of the tub and the hinge of the spin dryer
cover and pulling up the spin dryer cover(Fig. 17).
5. Loosen the fixing bolt of the coupling assembly
fastening the spin shaft(Fig. 19).
6. Pull out completely the spin basket assembly(Fig. 20).
To assemble the spin dryer cover assembly, reverse
the disassembly procedure.
To assemble the spin dryer basket assembly, reverse
the disassembly procedure.
Fig.15
Fig. 16
Fig.17
Fig. 18
Fig. 19
Fig. 20
25 mm
-9-
4-4. Spin Motor replacement
After removing the back cover, opening the spin dryer
cover, and removing the spin dryer basket, proceed
as follows:
1. Remove the brake wire holder-A in the direction of
the arrow.(Fig. 21).
Brake wire assembly
2. Separate the brake wire assembly from the brake
wire holder.(Fig.22)
7. Hold the spin motor and remove the three hooks
from the base(Fig. 25).
8. Remove the spin motor.
9. Remove the screws fastening the vibration damper
assemblies and remove the vibration damper
assemblies(Fig. 26).
3. Take out the brake wire assembly from the brake
assembly.(Fig. 23)
4. Disconnect the lead wires and remove the V-belt.
5. Lay the washing machine on its front side on a
blanket or cardboard.
6. Remove the screws fastening the base and remove
the base from the outcase(Fig. 24).
Fig. 21
Fig. 22
Fig. 23
Fig. 24
Fig. 25
Fig. 26
Jig
 Pu
sh
-10-
Fig. 28
Fig. 29
Fig. 32
Fig. 30
Fig. 31
Lower bolt
Fig. 27
10. Loosen the fixing bolt fastening the motor shaft
and pull up the coupling assembly(Fig. 27).
2. Disconnect the lead wires.
3. Lay the washing machine on its front side on a
blanket or cardboard.
4. Remove the screws fastening the base and remove
the base from the outcase(Fig. 30).
5. Remove the screws and the washers, remove the
wash motor and remove the wash motor
damper(Fig. 31).
6. Loosen the socket bolt of the motor pulley
assembly and pull up the motor pulley assembly
from the motor.
To assemble the wash motor, reverse disassembly
procedure.
11. Remove the screws fastening the brake assembly
and remove the brake assembly(Fig. 28).
To assemble the spin motor, reverse the disassembly
procedure.
4-5. Wash Motor replacement
After removing the back cover and the spin dryer
basket, proceed as follows:
1. Remove the V-belt from the pulsator pulley(Fig. 29).

Download LG WP-1150 Service Manual (Repair Manual)

Here you can view online and download LG WP-1150 Service Manual in PDF. WP-1150 service manual will guide through the process and help you recover, restore, fix, disassemble and repair LG WP-1150 Washing Machine. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.