DOWNLOAD LG WP-830QPB Service Manual ↓ Size: 3.53 MB | Pages: 27 in PDF or view online for FREE

Model
WP-830QPB
Pages
27
Size
3.53 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
wp-830qpb.pdf
Date

LG WP-830QPB Service Manual ▷ View online

4-9. PLUNGER VALVE ASSEMBLY
REPLACEMENT
After removing the back cover and setting the knob
for the drain selector to “WASH•RINSE” proceed as
follows :  
1. Disconnect the plunger valve strap from the
rod.(fig. 3)
2. Untighten the plunger valve cover by rotating in
the direction of the arrow. (fig. 43)
3. Remove the plunger valve spring, the plunger
valve rod and the plunger valve bellows.
To asseble the plunger valve assembly, reverse the
disassembly procedure.
4-10. DRAIN PUMP ASSEMBLY
REPLACEMENT(Pump model only)
After removing the back cover, refer to the figure
and proceed as follows :
(1) Disconnect the lead wires of the drain pump
assembly.
(2) Disconnect all hoses(drain hose-D and drain
hose-C) from the drain pump assembly. 
(3) Lay the washing machine on its front side on a 
blanket or cardboard.
(4) Hold the drain pump assembly and remove the
screws fastening the drain pump assembly from
the base bottom. (Fig. 45)
(5) Remove the drain pump assembly.
To assemble the drain pump assembly, reverse the
disassembly procedure.
-13-
4. Tighten the bolt of the coupling assembly while
adjusting it to the cutter split made in the spin
shaft(Fig. 42).
NOTE
If water leakage occurs at the spin tub after
assembling the bellows assembly and the
bellows supporter, it is wrong. It could cause
an electrical shock or a fire, therefore they
should be securely assembled again.
NOTE
•Damage to the plunger valve cover may
cause water leakage.
•When replacing the plunger valve assembly,
take care not to cause water leakage.
NOTE
Apply adhesive or use hose clamps on all joints
to ensure their water tightness.
Fig. 42
Plunger valve
cover
Cover
Spring
Bellows
Fig.43
Fig.44
Fig.45
4-11. VENT REPLACEMENT
(1) Open the spin dryer cover and the safety cover-2
and pull off the safety cover-1. (Fig.18)
(2) If the vent is pulled upward,it can be removed.
(Fig.46)
To assemble the vent, reverse the disassembly
procedure.
5.ADJUSTMENT
5-1. BELT TENSION
Adjust the belt tension by adjusting 2 bolts for the
wash motor that the length “
”be 90~100mm when
you grasp it with your fingers. 
5-2. DOOR SWITCH OPERATION
Adjust the door switch by bending the contact so it
turns on/off when the spin dryer cover is opened 20
to 50mm(4°~10°)  in a horizontal position.(Fig. 48)
5-3. BRAKE OPERATION
1. The brake assembly is fitted to the top of the spin
motor. The brake block is positioned to make
contact with the coupling. The brake is operated
by the brake wire assembly connected to the
hinge of the spin dryer cover.
2. After the brake is operated by the opening the
spin dryer cover, spin dryer basket should be
stopped within 5 seconds.
6. EXAMINATION AFTER REPAIRING
After repairing, perform the trial test and check the
following points.
(1) Measure the insulation resistance; it should be
more than 10M
.
(2) This washing machine must be properly grounded
for safety.
(3) Check to make sure that there is no water leakage
from any of the connections.
(4) When spinning empty, the braking time should be
less than 5 seconds.
(5) Is not grease adhered to contacts of electrical
parts?
-14-
Vent
"
20~50mm
(4  ~10  )
Motor pulley
Pulsator pulley
Fig.46
Fig.44
Fig. 48
Fig. 49
NOTE
If the vent is not inserted correctly, water will
flow back into the spin tub, and a normal spin is
impossible.
NOTE
After repairing the door switch system or the
brake system. perform the trial test and check
the following points.
(1) When opening the spin dryer cover, the
door switch should be turn off before the
brake block makes contact with the
coupling.
(2) When closing the spin dryer cover, the door
switch should be turn on after the brake
block separates from the coupling.
(3). When braking time is over 15 seconds,
move the brake strap hook to upper hole of
the brake wire plate to adjust.
-15-
7. TROUBLESHOOTING GUIDE
TROUBLE
CAUSE
REPAIR METHOD
Power Supply
Power is not supplied to
washing machine.
Power cord is not plugged
into the wall outlet firmly.
Power is not supplied at the
wall outlet.
Connect firmly.
Advise the customer.
Replace fuse or reset circuit breaker.
Advise the customer.
Spin Drying
After connecting to the power
source and turning spin timer ON,
spin motor does not operate.
After connecting to the power source
and turning spin timer ON, spin motor
does not operate properly.(When
spin motor makes strange noise.)
Plug or wiring is defective.
Spin timer is faulty.
Door switch is faulty.
Capacitor is defective.
Motor is defective.
Brake is defective.
Capacitor is defective.
Motor is defective.
Repair and rewire properly.
Replace with a new one.
Adjust or replace with a new one.
Replace with a new one.
Replace with a new one.
Replace the brake assembly with a new one.
Replace with a new one.
Replace with a new one.
Washing and Rinsing
After connecting to the power
source and turning wash timer
ON, wash motor does not
operate.
After connecting to the power
source and turning wash timer
ON, wash motor does not
operate properly.(When wash
motor makes strange noise.)
Clothes do not swirl adequately
Amount of water decreases
while washing.
While rinsing, water overflows
from corner of the wash tub.
Plug or wiring is defective.
Wash timer is faulty.
Capacitor is defective.
Capacitor is defective.
Motor is defective.
Motor is defective.
Blockage between the pulsator
and the tub.
Excessive amount of clothes.
Drain selector position is not
correct.
Strap connection is not adjusted properly.
Plunger valve bellows is damaged.
Too much water.
Lint is sticking to the plunger valve.
Lint is sticking to the filter or hoses.
Drain pump does not operate.
(Pump model only)
Repair and rewire properly.
Replace with a new one.
Replace with a new one.
Replace with a new one.
Replace with a new one.
Replace with a new one.
Remove blockage.
Remove some clothes to
reduce wash load.
Set drain selector to proper position.
Advise the customer.
Adjust properly.
Replace with a new one.
Adjust amount of water filled.
Remove plunger valve cover and
clean the plunger valve.
Remove lint and clean.
See [Others]
-16-
TROUBLE
CAUSE
REPAIR METHOD
Spin Drying
While spining, spin dryer
basket is unbalanced.
Spining operation is not
properly.
After opening spin dryer cover,
spin dryer basket continues
revolving.
Installation is unbalanced.
Installed area is not level.
Load in spin dryer basket is
unbalanced.
Bellows assembly is damaged.
Center between spin shaft and
coupling is unbalanced.
Brake is defective.
Spin shaft is clogged.
Drain hose is clogged.
Bearing for bellows assembly is worn.
Brake is defective.
Advise the customer to install the
washing machine in a more stable
location.
Re-distribute the load.
Advise the customer of correct loading.
Replace with a new one.
Balance completely.
Adjust brake properly.
Remove blockage.
Remove blockage.
Replace with a new one.
Adjust brake properly.
Others
No draining
Drain pump does not operate 
(Pump model only)
When draining water, water
does not flow out smoothly.
Noise
Drain selector position is defective
or is not correct.
Strap connection is defective.
Lint sticks to the filter or hoses.
Drain selector position is defective
or is not correct.
Wiring is defective.
Mini switch is defective.
Drain pump interior(runner) is
clogged.
Pump motor is defective.
Drain hose is clogged.
Lint is sticking to the plunger valve,
the filter or hoses.
Blockage between the pulsator and
the tub.
Bearing for pulsator shaft assembly
is worn.
Bearing of bellows assembly is
worn.
Set drain selector to proper position.
Advise the customer.
Adjust properly.
Remove lint and clean.
Set drain selector to proper position.
Advise the customer.
Rewire properly.
Replace with a new one.
Remove blockage.
Replace with a new one.
Remove blockage.
Remove lint and clean.
Remove blockage.
Replace with a new pulsator shaft
assembly.
Replace with bellows assembly.
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