LG WD-8054FB Service Manual ▷ View online
24
SYMPTOM
GUIDE FOR SERVICE CALL
°Suds overflow from the
appliance.
(In this condition, wash and
spin do not operate normally)
°No effect of softener
YES
YES
YES
YES
YES
Is low-sudsing detergent for the drum
washing machine used?
Is the proper amount of detergent used
as recommended?
Recommend to reduce the amount of
detergent.
Is softener put in the correct compartment of
drawer?
Is the drawer closed during wash?
Is the softener cap clogged?
Explain how to use softener
Clean the compartment for softener
Visit to check
Visit to check
LOW SUDSING
DETERGENT
Compartment for
softener
softener
This appliance has the automatic suds sensing function which operates
under much suds condition for good rinse and preventing overflow.
under much suds condition for good rinse and preventing overflow.
When much suds are sensed, the suds removing function such as
drain, water input, and pause will operate without rotating the drum.
drain, water input, and pause will operate without rotating the drum.
°OVERFLOW ERROR
°PRESSURE S/W ERROR
°THERMISTOR ERROR
Refer to
8-4. ERROR DISPLAY
°PRESSURE S/W ERROR
°THERMISTOR ERROR
Refer to
8-4. ERROR DISPLAY
■ WD-1050(5)F(H)(B)/WD-1253(5)F(H)(B) / WD-1054(6)F(H)B / WD-1254(6)F(H)B
■ WD-6550F(B)/WD-8050(4)F(H)(B)
25
9-2. FAULT DIAGNOSIS AND TROUBLESHOOTING
1. Be careful of electric shock or disconnecting the parts while troubleshooting.
2. First of all, check the connection of each part terminal with wiring diagram.
3. Voltage between each terminal is 220-240V while applying an electric current.
CAUTION
NO
NO
NO
YES
YES
YES
YES
NO
NO
YES
(1)
(2)
(5)
(6)
PWB ASSEMBLY (MAIN)
PWB ASSEMBLY (MAIN)
Check the fuse?
Replace PWB assembly
(Main).
(Main).
Replace PWB assembly
(Main).
(Main).
Reconnect the PWB
assembly (Display).
assembly (Display).
Reconnect the PWB
assembly (Display).
assembly (Display).
When measuring the voltage of the outlet,
is the voltage AC 220-240V?
Is the LED (1) on?
When measuring the voltage of natural
connector (5,6) is the voltage DC 10~16.5V?
Is connector (2) disconnected or
disassembled?
Is wire of the PWB assembly (Display)
disconnected?
Replace PWB assembly (Display).
NO POWER
■ WD-6550FB / WD-8050(4)F(H)B / WD-1050(5)F(H)B / WD-1253(5)F(H)(B) / WD-1054(6)F(H)B / WD-1254(6)F(H)B
26
1. Be careful of electric shock or disconnecting the parts while troubleshooting.
2. First of all, check the connection of each part terminal with wiring diagram.
3. Voltage between each terminal is AC 220-240V while applying an electric current.
(except secondary part of the transformer and sensors)
2
1
3
NO
NO
YES
YES
YES
NO
NO
YES
PWB ASSEMBLY (POWER)
Check the fuse?
Replace PWB assembly
(Power).
(Power).
Reconnect and repair
connector.
connector.
Replace PWB assembly
(Main).
(Main).
When measuring the voltage of the outlet,
is the voltage AC 220-240V?
When measuring the voltage of blue
connector of the PWB assembly (Power),
is the voltage AC 220-240V?
Is
③ connector disconnected or
or is the contact bad or cut?
Is wire of the PWB assembly (Display)
disconnected?
Replace PWB assembly (Display).
NO POWER
CAUTION
■ WD-6550F / WD-8050F(H) / WD-1050(5)F(H)
27
NO
YES
NO
NO
YES
NO
YES
YES
NO
NO
YES
YES
YES
NO
NO
NO
YES
Wiring diagram
option (HOT)
option (HOT)
MAX
Is the water supply shut-off?
Is the tap opened?
When you press both Wash button and Rinse
buttons simultaneously, is the water level
frequency below 40?
buttons simultaneously, is the water level
frequency below 40?
Is the inlet valve filter clogged with impurity?
Is resistance of the inlet valve connector
between 2 to 8
between 2 to 8
k
Ω
?
Check the voltage between each terminal of
inlet Valve is 220~240V.
(Refer to 7-2 TEST MODE)
Is water supplied?
Are replaceptacles correctly connected to the
terminals of inlet valve?
terminals of inlet valve?
Is detergent put in the correct compartment of
the drawer?
the drawer?
Is the detergent caked or hardened?
Open the tap.
Check the chamber (Air)
and the tube clogged
with impurity.
and the tube clogged
with impurity.
Clean the filter.
Replace the inlet valve.
Replace PWB assembly
(Main).
Refer to solution
NO INLET.
Check the wiring on the
dispenser.
Put the detergent in the
correct position
PRE+MAIN
correct position
PRE+MAIN
MAIN WASH
: Detergent
Clean the drawer.
NO WATER SUPPLY
DETERGENT DOES NOT FLOW IN
MAIN
WASH
SOFTENER
PRE -
WASH
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