DOWNLOAD LG LSWF388HVS Service Manual ↓ Size: 9.33 MB | Pages: 67 in PDF or view online for FREE

Model
LSWF388HVS
Pages
67
Size
9.33 MB
Type
PDF
Document
Service Manual
Brand
Device
Washing Machine
File
lswf388hvs.pdf
Date

LG LSWF388HVS Service Manual ▷ View online

22
7. TEST MODE
7-1. SAFETY CAUTION
Both 120 volts AC and DC voltages are present on the main board. Be careful to avoid a shock hazard.
Be careful electric shock when disconnecting parts while trouble shooting. (Wear Electro Static
Discharge gloves when working.)
After cutting off the power when changing PWB assembly, disconnect or assemble.
Be careful static when handling PWB assembly, and use electro static discharge plastic pack
when handling or storing the board or other components.
7-2. LOAD TEST MODE
1. Press the SPIN SPEED and SOIL LEVEL buttons simultaneously.
2. Press the Power      button, while the above condition. Then buzzer will sound twice.
4. Press the START/PAUSE
button repeatedly to cycle through the test modes.
None 
1 time 
2 times 
3 times 
4 times 
5 times 
6 times 
7 times 
8 times 
9 times 
10 times 
11 times 
12 times 
13 times 
14 times
15 times
Turns on all lamps.
Tumble clockwise.
Low speed Spin.
High speed Spin.
Inlet valve for prewash turns on.
Inlet valve for main wash turns on.
Inlet valve for Hot water turns on.
Inlet valve for bleach turns on.
Inlet valve for steam turns on.
Tumble counterclockwise.
Heater turns on for 3 seconds.
Circulation pump turns on.
Drain pump turns on.
Steam water level sensor operates.
Steam Heater turns on for 1.2 sec.
off
LOAD TEST MODE
rpm (42~50)
rpm (35~45)
rpm (110~117)
Water level frequency (0~255)
Water level frequency (0~255)
Water level frequency (0~255)
Water level frequency (0~255)
Water level frequency (0~255)
rpm (42~50)
Water temperature
Water level frequency (0~255)
Water level frequency (0~255)
AG tub water level frequency (0~255)
Steam generator temperature
3. Press the STEAM button to load test mode. Without pressing the STEAM button, you
can load demo mode.
Number of times the
Start/Pause button is pressed
Check Point
Display Status
The washer must be empty and the controls must be in the off state.
23
7-3. HOW TO READ THE DISPLAY IN LOAD TEST MODE
***
***
***
***
***
***
***
***
***
***
Water level
frequency
Wash temperature
Steam temperature
RPM
Vibration sensor
error
7-4. HOW TO CHECK THE WATER LEVEL FREQUENCY AND
VIBRATION SENSOR ERROR
***
***
***
***
***
***
***
***
***
***
***
***
The digits indicate the water level frequency.
* Press the WASH/RINSE and SOIL LEVEL buttons simultaneously.
For example, if the display indicates 058,
the water level frequency is 20+(58 X 0.1) = 25 8 kHz.
The digits indicate the operation of the vibration sensor.
For example, if the display 000, the sensor is working 
If the display 001, the vibration sensor has failed.
24
If you press the START/PAUSE button when an error is displayed, any error except       PE ERROR
will disappear and the machine will go into the pause status.
In case of       PE ERROR,       tE ERROR, 
dE ERROR if the error is not resolved within 20
seconds, or in the case of other errors, if the error is not resolved within 4 minutes, power will be
turned off automatically and the error code will blink. But in the case of       FE ERROR, power will not
be turned off.
8-1. SAFETY CAUTION
Both 120 volts AC and DC voltages are present on the main board. Be careful to avoid a shock
hazard.
After cutting off the power when changing PWB assembly, disconnect or assemble.
Be careful static when handling PWB assembly, and use Electro Static Discharge plastic pack when
delivering or keeping it.
ERROR
SYMPTOM
CAUSE
WATER INLET
ERROR
• Correct water level (24.6kHz) is not reached within 
8 minutes after water is supplied or it does not reach
the preset water level within 20 minutes.
IE ERROR
NO WATER SUPPLY.
CHECK TAP & HOSE.
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-2623
1
UNBALANCE
ERROR
• The load is too small.
• The appliance is tilted.
• Laundry is gathered to one side.
• Non distributable things are put into the drum.
2
DRAIN ERROR
• Not fully drained within 10 minutes.
3
OVERFLOW ERROR
• Water is overflowing. 
(water level frequency is over 21.3kHz).
If      
FE ERROR
is displayed, the drain pump will
operate to drain the water automatically.
4
PRESSURE SENSOR
ERROR
• The PRESSURE SENSOR ASSEMBLY is out of
order.
• When water level frequency maintain condition of
below 10 kHz and over 30 kHz.
5
DOOR OPEN ERROR
• Door not all the way closed.
• Loose electrical connections at Door switch and
PWB Assembly.
• The DOOR SWITCH ASSEMBLY is out of order.
6
HEATING ERROR
• The THERMISTOR is out of order.
7
8. TROUBLESHOOTING
8-2. ERROR MODE SUMMARY
UE ERROR
LOAD IS OUT OF BALANCE.
REARRANGE WASH LOAD.
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-2623
OE ERROR
NOT DRAINING.
CHECK THE DRAIN HOSE & FILTER.
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-2623
FE ERROR
SEE OWNER`S
MANUAL.
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-
2623
PE ERROR
SEE OWNER`S
MANUAL.
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-
2623
dE ERROR
THE DOOR IS OPEN.
PLEASE CLOSE THE DOOR
COMPLETELY. 
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-2623
tE ERROR
SEE OWNER`S MANUAL.
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-2623
25
ERROR
SYMPTOM
CAUSE
LOCKED MOTOR
ERROR
EEPROM ERROR
• The connector (3-pin, male, white) in the MOTOR
HARNESS is not connected to the connector (3-pin,
female, white) of STATOR ASSEMBLY.
• The electric contact between the connectors (3-pin,
male, white) in the MOTOR HARNESS and 4-pin,
female, white connector in the MAIN PWB
ASSEMBLY is bad or unstable.
• The MOTOR HARNESS between the STATOR
ASSEMBLY and MAIN PWB ASSEMBLY is cut
(open circuited).
• The hall sensor is out of order/defective.
8
• EEPROM is out of order.
આ Displayed only when the START/PAUSE button is
first pressed in the Load Test Mode.
9
POWER FAILURE
• After the power supply is stopped while washing
machine is working, the power is supplied rapidly. 
10
LE ERROR
SEE OWNER`S MANUAL.
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-2623
EE ERROR
SEE OWNER`S MANUAL.
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-2623
PF ERROR
THE WASHER
EXPERIENCED A POWER
FAILURE. RESTART THE
CYCLE.
(LGUS)1-800-243-0000
(LGCANADA)1-888-542-2623
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