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16/June/2003Washing Machine Division

27˝ Front Loader (Columbus Combo)

2Variety Capacity of Condensing Combo

WashingCapacity

DryingCapacity

5kg

2.5kg

6.5kg

3kg

7kg

3.5kg

8kg

4kg

10kg

5kg

WashingCapacity

DryingCapacity

5kg

2.5kg

6.5kg

3kg

7kg

3.5kg

8kg

4kg

10kg

5kg

Width 24˝(600mm) ?(developing) 27˝(686mm)

Optimum Senseclean™ washing(Fuzzy Logic Control system)

Quiet washingBiggest Wash&Dry Capacity

Foam Removal system(Suds-free)Water Circulation system

Direct Drive system

Brushless Motor system

Powerful RollerJets(w/ Washing-Ball)

Condensing Drying system

31. Design Look & Spec.

Design Look Spec.

Columbus Ⅱ

WM : Front loading Washer

36 : 1200 rpm, Combo

32 : Columbus Ⅱ(Wave Panel) H : Heater

W : White

CategoryModel NameColorWater HeaterWash/Rinse TemperatureCyclesDelay WashMax. Spin speedRollerJetsWater CirculationCabinet TopDoor TrimWindow Cover

ComboWM-3632HW

WhiteYES

6 options9

19 hours1200 RPM

YESYES

PorcelainSilverYES

41. Product Differentiation

Dry Heater(W)

Quietline

Water(ℓ)

*test condition : dry time-90min., dehydration-57%, load –8 lbs.

**efficiency : moisture / energy(kwh)

*Dry Performance(%)

Columbus Combo Equator

1200

90

15

70

21

75

28

650+650 1300

WD-3243RHD

74

28.5

Performance

**Energy Use(%) 60 49 5452

Dry Capacity

1200

Tub Material Plastic Stainless

Dry(ℓb)［ kg］ 6［ 3.0] 6［ 3.0] 5［ 2.5]11 ［ 5]

Stainless Stainless

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LG recently adopt new advanced technology so called “Direct drive” system to its new washerand wash & dry combo unit . Without belt and belt pulley, motor itself is connected tothe drum tub. It results a great improvement in reducing noise and improving energy efficiency.

2. Direct Drive system

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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.

Brush

Rotor(Magnetized by current)

Stator(Magnetized by current)

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 isbig and powerful enough to replace the pulley.

★ Powerful & Reliable control ★ Minimum vibration & noise ★ Optimum energy consumption

(brushless)(with brush)

Coil

Conventional Motor (Universal motor) LG’s New Motor (Direct Drive)

Rotor(permanent- magnet)

Stator(Magnetized by current)

Coil

Rotating Shaft

2. Brushless Motor system

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Unique no brush and no beltDirect Drive Front Loader

• Low and• No Friction Noise• Stable Balancing System

Washing : 53dB , Spinning : 67 dB

2. Quiet Washing

Lowest Noise & Vibration Level

(*Sound Power Pressure)

Columbus DD system

Conventional system

75

18%

Low noises by removing brush and belt, Low vibration by more stable balancing system

Conventional Direct Drive

Low VibrationMore stable Balancing system by moving Motor to the center of system

Low NoisesQuiet and durable motor by removing Brush that makes unpleasant noises

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To get the best washing performance, optimal time is determined by the water temperature,

the selected washing temperature, and the size of the load.

2. Optimum Senseclean™ washing

92. Control Process : Mechanical vs. Fuzzy Logic

Loaddetection

BalanceCheck Balancing

High Spinrpm

BalancingBalanceCheck

100

max

Feed-Back System

rpm

100

max

Too much Vibration

Fixed Spin Time

Not enough High Spin TimeNot reached Max Spin rpm.

Gap of actual Performance of Spin

Automatic control of the Spin Time

Spin at 70dB(normally)

Spin at 60dB

Mechanically controlled washers

LG Fuzzy Logic control

Low Spin Performance

8/28

102. Auto-Balancing Feed Back System

Sensor detects and makes clothes balanced so as to achieve lower noise level.

Large loadrpm

Small load

Time

ref

rpm

Loaddetection

Unbalancedetection Balancing

High Spin

Feed-Back System

112. Unbalance Sensing theory

rpm

* 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.

100 rpm

50 rpm

1.Rinsing finish /Spinning start

2.Untangling

3.Period getting the eccentricity Data

Sensingperiod

4.Spinning start

12sec.5sec. 10sec. 5sec. 5sec.

O.K

122. Suds-Free System

Improve “wash/rinse” and “spin” performance by detecting and removing excessive suds in the drum

132. 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 than23.3KHz

Draining for 1minute

Breaking for 2minute

Fill in water for 1minute

Finish

3times

Total Required time : about 12minutes

142. 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

Fill in water for 1 minute

Breaking for 2minute

Drain for 2 minute

Finish

3times

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RollerJets 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.

• The washing balls increase cleaning power by shooting out water this decreases laundry rubbing together and thus reduces damage to your laundry.

Hole Shower Fn.▶

(At peak point)

Ball Bearing Fn.▶

(Decrease rubbing)

Heavy Lifter ▶Powerfully lift a bulky laundry

Inside of the drum

Shower Connector

2. High Cleaning Performance

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Largest washer with dryer

10kg washer with dryer is first in the world.

Performance

•Use less condensing water than any

other washer with dryer.

•High dry performance

•High energy efficiency

•2-step safety equipment

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.

1

2

4

3

1:dry duct 2:tub3:fan 4:condensing duct

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●Working Description 1) During Wash cycle:

0~3 min - Pump On

3~10 min - 20 sec On

10 sec Off

2) During Rinse cycle:

always On

3) Start operation after water is

supplied

Drain Pump Circulation Pump

●Feature 1) Spray detergent solution

and water onto the load

over and over.

2) Clothes are soaked more

quickly and thoroughly during

wash cycle.

3) The detergent suds can be

removed more easily by the

water shower during

rinse cycle.

4) Uses both water and detergent

more efficiently.

5) Is used to wash inside of the

door window.

Shower Connector

Inside of the drum

3. Water Circulation

183. Door Lock Switch

Unlock②Lock

①Lock

●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

●Feature 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.

3) Enable to open from inside

for safety.

●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.

193. Ball Sensor

Ball Sensor

●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.

●Feature 1) Detects unbalanced load.

2) Prevents a striking/walking.

3) Drum stops if excessive

vibration occurred and then

tub hits the ball sensor. HOLE

BALL

CASE

TR(Sensing light)

DIODE(emitting light)

light

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POWER button

CYCLE SELECTOR knobSTART/PAUSE button

STATUSINDICATOR

EST. TIMEREMAINING

DOOR LOCKEDlamp

CUSTOMPROGRAMbutton

DRYbutton

WASH/RINSE temp.SPIN SPEEDSOIL LEVELbuttonOPTION

buttons

CHILDLOCK

1

2 3

4

1098

6 7

5

4. Control Panel

215. Test Operation

* 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.

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.

③ Press the START/PAUSE button

•Check if water is suppied through the detergent dispenser.

④ Check the water supply ⑤ Check automatic reverse turn

⑥ Check the water heating

•Check if the drum rotates clockwise and counterclockwise.

•Press the POWER button twice the restart.•Press the SPIN SPEED button. •Press the Start/Pause button.

⑦ Check drain and spin

• Listen for clicking sounds to determine if the door has unlocking.

⑧ Press the START/PAUSE button

•If SVC is needed during check, remove the remaining water by pulling out the hose cap.

⑧ Power off and open the door

•Listen for clicking sounds to determine if the door has locked.

•Press the WASH/RINSE button and the present temperature will be displayed.

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Fan motor

6. Wiring Diagram

237. QC Test Mode

* 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.

248. Error Display

258. Error Display

268. Error Display

279. Troubleshooting

289. Troubleshooting

299. Troubleshooting

309. Troubleshooting

3110. Disassembly instruction

3210. Disassembly instruction