LG WM1873FDS Service Manual ▷ View online
WASHING MACHINE
SERVICE MANUAL
READ THIS MANUAL CAREFULLY TO DIAGNOSE
PROBLEMS CORRECTLY BEFORE SERVICING THE UNIT.
CAUTION
MODEL : WM1873FDS
2
FOR AUTHORIZED SERVICE TECHNICIAN
SAFETY RECAUTION!
CONTENTS
1. Specifications ...............................................................3
2. Features and Technical Explanation ..........................4-6
3. Parts Identification ........................................................7
4. Installation and Test .................................................8-10
5. Operation ...............................................................11-17
5-1. Control Panel Features ......................................11-13
5-2. Cycle Guide .............................................................14
5-3. Special Functions ....................................................15
5-4. Explanation of Each Process .............................16-17
6. Wiring Diagram / Program Chart ................................18
7. Test Mode ...................................................................19
7-1. Safety Caution .........................................................19
7-2. Load Test Mode .......................................................19
7-3. How To Read the Display in Load Test Mode ..........19
8. Troubleshooting .....................................................20-35
8-1. Safety Caution .........................................................20
8-2. Error Mode Summary .........................................20-21
8-3. Troubleshooting With Error ................................22-28
8-4. Troubleshooting Else ..........................................29-33
9. Component Testing Information .............................34-47
9-1. Filter Assembly (Line Filter) .....................................34
9-2. Door Look Switch Assembly ...............................35-36
9-3. Stator Assembly .................................................37-38
9-4. Pump Motor Assembly .......................................39-40
9-5. Heater Assembly .....................................................41
9-6. Thermistor Assembly ..........................................42-43
10. Disassembly Instructions .....................................44-52
11. Exploded View .....................................................53-55
11-1. Cabinet and Control Panel Assembly ....................53
11-2. Drum and Tub Assembly .......................................54
11-3. Dispenser Assembly ..............................................55
IMPORTANT SAFETY OTICE!
To reduce the risk of fire, electric shock, or personal injury when using this
appliance, follow basic precautions, including the fxaollowing:
To reduce the risk of fire, electric shock, or personal injury when using this appliance, follow basic
precautions, including the following.
This service information is intended for individuals possessing adequate backgrounds of electrical,
electronic, and mechanical experience. Any attempt to repair this appliance may result in personal
injury or property damage. The manufacturer or seller can not be responsible for the interpretation
of this information, nor can it assume any liability in connection with its use.
• Wear gloves when working.
Failure to do this can result in serious injury.
• The appliance is heavy. Two or more people is required
when moving the appliance.
There is risk of serious back injury or other injuries.
• Certain internal parts are intentionally not grounded
and may present a risk of electric shock only during
servicing. service personnel Do not contact the
following parts while the appliance is energized : pump
bracket, rotor, and heater.
• Disconnect this appliance from the power supply
before servicing. Turning the controls to the off
position does not disconnect this appliance from the
power supply.
Failure to do this can result in shock.
• Reconnect all grounded devices after servicing.
Failure to do this can result in shock.
WARNING
3
FOR AUTHORIZED SERVICE TECHNICIAN
1. SPECIFICATIONS
ITEM
WM1873FDS*
COLOR
W: BLUE White. V: STAINLESS SIVER. R: CANDY APPLE RED. S: Titanium
POWER SUPPLY
AC 120V, 60 Hz
PRODUCT WEIGHT
88 kg
ELECTRIC POWER
CONSUMPTION
WASHING
280 W
DRAIN MOTOR
80 W
WASH HEATER
1200 W
REVOLUTION SPEED
WASH
46 rpm
SPIN
0-770 rpm
Cycles
12
WASH/RINSE TEMPER ATURES
5
SPIN SPEEDS
5
OPTIONS
Signal Option(High, Low, Off), Steam, Cold Wash, Delay Wash, Pre Wash,
Signal On/Off, Rinse+Spin, Child Lock ,Extra Rinse, Favorite
WATER CIRCULATION
Incorporated
OPERATIONAL WATER PRESSURE
100 - 1000 kpa (1.0-10.0 kgf/cm
2
)
CONTROL TYPE
Electronic
WASH CAPACITY [cu.ft.]
(4.0 DOE)
DIMENSIONS
686 mm(W) x 767 mm(D) x 982 mm(H) / 1295 mm (D, door open)
DELAY WASH
up to 19 hours
DOOR SWITCH TYPE
PTC + Solenoid
WATER LEVEL
7 steps(by sensor)
LAUNDRY LOAD SENSING
Incorporated
ERROR DIAGNOSIS
Incorporated
AUTO POWER OFF
Incorporated
CHILD LOCK
Incorporated
WARNING
To reduce the risk of injury to persons, adhere to all industry
recommended safety procedures including the sue of long sleeved
gloves and safety glasses. Failure to follow all of the safety warnings in
this manual could result in property damage, injury to persons of death.
WARNING: This product contains chemicals knownto the State of
California to cause cancer and birth defects or other reproductive
harm. Wash hands after handling
4
FOR AUTHORIZED SERVICE TECHNICIAN
2. FEATURES & TECHNICAL EXPLANATION
Ultra Capacity
The larger drum enables not just higher head drop and stronger centrifugal force,
but also less tangling and wrinkling of the laundry. Heavier loads, such as king size
comforters, blankets, and curtains, can be washed.
Direct Drive System
The advanced brushless DC motor directly drives the drum without belt and pulley.
Tilted Drum and Extra Large Door Opening
Tilted drum and extra large opening make it possible to load and unload clothing
more easily.
RollerJets
Washing ball enhances the wash performance and reduces damage to the clothing.
The jets spray and help tumble clothes to enhance washing performance while
maintaining fabric care.
Automatic Wash Load Detection
Automatically detects the load and optimizes the washing time.
Built-in Heater
cycles.
Child Lock
The child lock prevents children from pressing any button to change the settings
during operation.
2-1. FEATURES