27˝ Front Loader (Columbus Combo)
16/June/2003
Washing Machine Division
1
2
Variety Capacity of Condensing Combo
24˝(600mm)
Width
?(developing) 27˝(686mm)
Washing
Capacity
5kg
6.5kg
7kg
8kg
10kg
Drying
Capacity
2.5kg
3kg
3.5kg
4kg
5kg
Direct Drive system
Brushless Motor system
Quiet washing
Foam Removal system(Suds-free)
Water Circulation system
Optimum Senseclean™ washing
(Fuzzy Logic Control system)
Biggest Wash&Dry Capacity
Powerful RollerJets(w/ Washing-Ball)
Condensing Drying system
3
1. Design Look & Spec.
Design Look
Spec.
Category
Model Name
Color
Water Heater
Wash/Rinse Temperature
Cycles
Delay Wash
Max. Spin speed
RollerJets
Water Circulation
Cabinet Top
Door Trim
Window Cover
Combo
WM-3632HW
White
YES
6 options
9
19 hours
1200 RPM
YES
YES
Porcelain
Silver
YES
WM : Front loading Washer
36 : 1200 rpm, Combo
32 : Columbus Ⅱ(Wave Panel)
H : Heater
Columbus Ⅱ
W : White
4
1. Product Differentiation
Dry Capacity
Dry(ℓb)［kg］
Tub Material
Dry Heater(W)
Columbus Combo
WD-3243RHD
Equator
Quietline
11［5]
6［3.0]
6［3.0]
5［2.5]
Plastic
Stainless
Stainless
Stainless
1200
1200
650+650
1300
90
74
70
75
60
52
49
54
15
28.5
21
28
Performance
*Dry Performance(%)
**Energy Use(%)
Water(ℓ)
*test condition : dry time-90min., dehydration-57%, load –8 lbs.
**efficiency : moisture / energy(kwh)
2. Direct Drive system
LG recently adopt new advanced technology so called “Direct drive” system to its new washer
and wash & dry combo unit . Without belt and belt pulley, motor itself is connected to
the drum tub. It results a great improvement in reducing noise and improving energy efficiency.
5
6
2. Brushless Motor system
Not like conventional washer that using brush DC motor, LG washer use Brushless DC motor
in it so that the durability, quietness and efficiency is greatly improved.
Conventional Motor (Universal motor)
Rotor
(Magnetized by
current)
(with brush)
LG’s New Motor (Direct Drive)
(brushless)
Rotating Shaft
Stator
(Magnetized by
current)
Coil
Stator
(Magnetized
by current)
Coil
Rotor
(permanentmagnet)
Brush
Brush delivers electric signals to rotate the coiled rotor.
● Brush makes frictional sound.
● Coiled rotor needs electricity.
● Brush abrades and needs replacement.
Rotor is a permanent magnet. Multi-coiled stator is
big and powerful enough to replace the pulley.
★ Powerful & Reliable control
★ Minimum vibration & noise
★ Optimum energy consumption
7
2. Quiet Washing
Low noises by removing brush and belt,
Low vibration by more stable balancing system
Unique no brush and no belt
Direct Drive Front Loader
Conventional
Lowest Noise & Vibration Level
Washing : 53dB , Spinning : 67 dB
Direct Drive
(*Sound Power Pressure)
• Low and
• No Friction Noise
• Stable Balancing System
Low Noises
Quiet and durable motor
by removing Brush that
makes unpleasant
noises
75
18%
Low Vibration
More stable Balancing
system by moving Motor
to the center of system
Conventional system
Columbus DD system
2. Optimum Senseclean™ washing
To get the best washing performance, optimal time is determined by the water temperature,
the selected washing temperature, and the size of the load.
8
9
2. Control Process : Mechanical vs. Fuzzy Logic
Mechanically controlled washers
rpm
Not enough High Spin Time
max
Not reached Max Spin rpm.
Too much Vibration
Spin at 70dB
(normally)
100
Low Spin Performance
Fixed Spin Time
Gap of actual Performance of Spin
LG Fuzzy Logic control
rpm
High Spin
max
Load
detection
Balance
Check
Balancing
Balance
Check
Balancing
Spin at 60dB
100
Feed-Back System
Automatic control of the Spin Time
8/28
10
2. Auto-Balancing Feed Back System
Sensor detects and makes clothes balanced so as to achieve lower noise level.
High Spin
rpm
Load
detection
Unbalance
detection
Balancing
Feed-Back System
Small load
rpm
Large load
ref
Time
11
2. Unbalance Sensing theory
* During spin cycle, if total amount of rpm changing (speed changing) is over the allowed level
which is set in the Micom, the washing machine starts an untangling cycle. ( i.e, if the Micom
decides that the load is out of balanced, the washing machine starts the untangling course.)
* If the total amount of rpm changing ( Δspeed changing) is still incorrect after the untangling
course has been carried out the required times, it displays the “ UE” error message.
3.Period getting the
eccentricity Data
rpm
100 rpm
4.Spinning
start
Sensing
period
50 rpm
2.Untangling
O.K
5sec.
10sec.
1.Rinsing finish
/Spinning start
5sec.
5sec.
12sec.
2. Suds-Free System
Improve “wash/rinse” and “spin” performance by detecting
and removing excessive suds in the drum
12
13
2. Suds sensing function
During Washing cycle
Suds sensing during washing cycle is done by water level change regardless of motor operation.
• If frequency is lower than 23.3KHz, the machine decides it as a suds problems.
• In Perm press, Delicates, Wool/Silk, or Hand wash cycle, it does not work.
Sensing and removing Suds during Washing cycle
Washing Process
Lower than
23.3KHz
Draining for 1minute
Breaking for 2minute
Fill in water for 1minute
Finish
3times
Total Required time : about 12minutes
14
2. Suds sensing function
During Spinning cycle
• The micom recognizes it as suds problem when:
1) the spinning speed does
not reach 270rpm in 10 sec.
2) the water pressure is
lower than 24.0kHz during intermittent spin.
3) the water pressure is
lower than 24.4kHz during high speed spin.
• When suds is detected, spinning is stopped and
the Suds remove program is started. And then the
Water supplying and draining are proceeded until
suds is not detected.
Sensing and removing Suds
during Spin cycle
Spinning Process
Suds sensed
Drain for
2 minute Fill in water
for 1 minute
Breaking for 2minute
Finish
3times
15
2. High Cleaning Performance
RollerJets
• The washing balls increase cleaning power by
shooting out water this decreases laundry
rubbing together and thus reduces damage to
your laundry.
Heavy Lifter ▶
Powerfully lift
a bulky laundry
Circulation System
• It is Circulation Shower System that sprays
water from the top down decreasing water,
detergent and energy consumption while
at the same time increasing washing power.
Shower Connector
Hole ▶ Shower Fn.
(At peak point)
Ball ▶Bearing Fn.
(Decrease rubbing)
Inside of the drum
16
2. Condensing Dry system
A condensing dryer takes the moist air released from your laundry and mixes it with
cool air. This process returns the moisture to water, which is pumped away to a drain
line. The some of steam is away througth the dispense and vent.
Largest washer with dryer
Performance
10kg washer with dryer
is first in the world.
•Use less condensing water than any
other washer with dryer.
1
•High dry performance
3
•High energy efficiency
2
4
1:dry duct
2:tub
3:fan
4:condensing duct
•2-step safety equipment
17
3. Water Circulation
Drain Pump
Circulation Pump
Shower Connector
●Feature
1) Spray detergent solution
and water onto the load
Inside of the drum
over and over.
2) Clothes are soaked more
quickly and thoroughly during
●Working Description
1) During Wash cycle:
wash cycle.
3) The detergent suds can be
0~3 min - Pump On
removed more easily by the
3~10 min - 20 sec On
water shower during
10 sec Off
2) During Rinse cycle:
always On
3) Start operation after water is
supplied
rinse cycle.
4) Uses both water and detergent
more efficiently.
5) Is used to wash inside of the
door window.
18
3. Door Lock Switch
●Feature
Unlock
②Lock
1) Normally be unlocked, so that
the washer can be opened by
hand even if the washer has
no power supply.
2) Instantaneous locking/
unlocking.
①Lock
3) Enable to open from inside
for safety.
●Working Description
1) Stop →Operation:
1 pulse applied to Lock
2) Operation →Stop:
2 pulses applied to Unlock
* Power failure during operation:
lock for 5 min
●The door cannot be
unlocked if:
1) The drum is moving.
2) The water temperature exceed
45 degrees C.
3) The water level exceed a
certain point.
19
3. Ball Sensor
DIODE(emitting light)
●Feature
BALL
1) Detects unbalanced load.
light
2) Prevents a striking/walking.
3) Drum stops if excessive
CASE
tub hits the ball sensor.
HOLE
Ball Sensor
vibration occurred and then
TR(Sensing light)
●Working Description
1) Senses within 60~300 rpm during spin.
2) If the tub hits the ball sensor then drum stops rotating and
rebalance the load.
3) Sensor detects out-of-balance and makes loads balanced to
achieve lower noise and vibration.
20
4. Control Panel
1
DOOR LOCKED
lamp
2
3
STATUS
INDICATOR
EST. TIME
REMAINING
4
POWER
button
6
5
OPTION
buttons
WASH/RINSE temp.
SPIN SPEED
SOIL LEVEL
button
7
8
DRY
CHILD button
LOCK
9
CUSTOM
PROGRAM
button
SELECTOR knob
10 CYCLE
START/PAUSE button
21
5. Test Operation
① Preparation for washing
•Connect the power plug
to the outlet.
•Connect the inlet hose.
② Press the POWER button
•In case of NORMAL
program.
⑧ Power off and open the door
③ Press the
START/PAUSE button
④ Check the water supply
⑤ Check automatic reverse
turn
•Listen for clicking
sounds to determine
if the door has locked.
•Check if water is suppied
through the detergent
dispenser.
•Check if the drum rotates
clockwise and
counterclockwise.
⑧ Press the START/PAUSE
button
⑦ Check drain and spin
⑥ Check the water heating
•Press the POWER button twice
the restart.
•Press the SPIN SPEED button.
•Press the Start/Pause button.
•If SVC is needed during check,
remove the remaining water by
pulling out the hose cap.
• Listen for clicking sounds to
determine if the door has
unlocking.
•Press the WASH/RINSE button
and the present temperature will
be displayed.
* BEFORE PERFORMING SERVICE
1. Be careful of electric shock when disconnecting parts for while troubleshooting.
2. The voltage of each terminal is 120V AC and DC when the unit is plugged in.
3. First of all, check the connection of each electrical terminal with the wiring diagram.
22
6. Wiring Diagram
Fan
motor
7. QC Test Mode
23
* The washer must be empty and the controls must be in the off state.
** Even if you press the button to check inlet valve, inlet valve does not operate until the drum completely stop from spinning.
8. Error Display
24
8. Error Display
25
8. Error Display
26
9. Troubleshooting
27
9. Troubleshooting
28
9. Troubleshooting
29
9. Troubleshooting
30
10. Disassembly instruction
31
10. Disassembly instruction
32