LG WM2277H Series Installation guide

LG TRAINING MANUAL
WM2277H* Washing Machine - Fall 2007
LG TRAINING MANUAL

WM2277 WASHER PAGE 4 of 84 TRAINING MANUAL
Safety Notices and Cautions 1
Contents 2
Introduction 4
Features 5
HE Detergent Instructions 6
Serial Number Information 7
Fuzzy Logic 8
Door Lock and Door Lock Lamp 8
Water Circulation (some versions) 9
Parts Identification 10
Accessories 11
Installation 12
Shipping Bolts 13
Leveling Legs 14
Pedestal Kit 15
Connections (Water, Drain, Electricity) 17
Control Panel 18
Option Buttons and Option Chart 19
Control Panel (Full explanation of all controls) 20
Program (Cycle) Chart 21
Dispenser 22
Direct Drive Motor 24
Hall Effect Sensor 25
Hall Effect Sensor Test Procedure 26
Test Mode 31
Water Level Frequency Test 31
Error Display 32
Diagnosis and Check List 34
No Power 34
Water Inlet Issue (IE) 34
Door Error (dE) 35
Drain Error (OE) 35
Suds Overflow 36
Dispenser does not dispense laundry products 36
Rel. 1.1 070831

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Fault Diagnosis and Troubleshooting Checklists 37
No Power 37
Vibration and Spin 38
No Water Supply 39
No Detergent 39
No Softener or Bleach 40
Heater Operation Without Water (pressure sensor issue) 41
Drain Malfunction 41
Heater Malfunction 42
Heater Overrun (continuous overheating) 42
No Water Circulation (some models) 43
Spin Malfunction 44
Disassembly and Repair 45
Block Wiring Diagram and Main Board 45
Control Panel 46
Main Board 47
Dispenser 48
Noise Filter 48
Front Cabinet, Tub, and Drum 49
Door 52
Pump(s) 53
Heater 55
Thermistor 55
Removal of foreign object between drum and tub 56
Motor 57
Damper (Suspension) 58
Water Level Switch 59
Tips and Tricks 60
Main Board and Connector Layout 61
Draining the Sump 61
Exploded View 62
Parts List 65
Service Bulletins 69

WM2277 WASHER PAGE 6 of 84 TRAINING MANUAL
INTRODUCTION
The WM2277** washer is most notable in that there are two distinct versions with
this same model number. The only way to tell them apart is by date code, which
is included in the serial number. (See page 7 concerning serial numbers.) Models
with a date code of 608 or later are the newer model (without the recirculation
pump); models beginning with 607 or earlier are the older models (with the
recirculation pump).
The later series includes three added options: TubClean, SpinSense, and
Water+Plus. The recirculating pump has been eliminated and the pump housing
changed accordingly. As a result, there have been changes in the display board
and assembly, the main control board, the flat cable, the owner’s manual, and
the tub size.
SPECIFICATIONS
Item WM2277H*
Color W– White, B– Black, S– Titanium
Power Input 120 VAC, 60 HZ
Weight 190 lbs (86 kg)
Washing 280 W
Drain Motor 80 W
Electric
Power
Consumption Water Heater 1000 W
Wash 42 rpmDrum Speed
Spin 0 ~ 1150 rpm
Options Prewash, Stain cycle, Extra Rinse,
Rinse+Spin, Delay wash, Water Plus
Cycles 7
Wash/Rinse temperatures 5
Options Prewash, Stain cycle, extra rinse,
Rinse+Spin, Delay Wash, Water+Plus
Custom Program Available
Water Circulation Pump Varies by production date
Control Type Electronic
Water Pressure Requirement 4.5 ~ 145 PSI (30 ~ 1,000 kPa)
Wash Capacity (cu. ft.) 3.32 (3.83 IEC)
Dimensions W x D x H 27” x 29¾” x 3811/16” (5013/16 door open)
Delay Wash up to 12 hours
Water Levels 10 steps, controlled by sensor
Load Sensing Included
Error Diagnosis Included
Auto Power-Off Included
Child Lock Included
Remote Laundry Monitor Available

WM2277 WASHER PAGE 7 of 84 TRAINING MANUAL
FEATURES
LARGE CAPACITY
The larger drum (3.83 cu. ft. I.E.C.) allows washing
of larger (heavier) loads and oversized items
(comforters, curtains, blankets, etc.) There is less
wrinkling and tangling of the laundry.
DIRECT DRIVE
The brushless DC motor drives the drum directly
without belts, pulleys, or transmissions. The
maximum spin speed of 1,150 RPM extracts more
water from the laundry, reducing drying times.
TILTED DRUM and LARGE DOOR
The tilted drum (10°) and large door opening allow
easier loading and unloading.
ROLLER JETS and BALLS
The baffles pick up water as the drum turns and
allow it to pour through the clothing as it tumbles.
The balls enhance the washing performance while
maintaining fabric care.
AUTOMATIC LOAD DETECTION
The microprocessor reads the current required to
turn the drum and determines the weight of the
load. This input is used to make numerous
decisions during the wash cycle.

WM2277 WASHER PAGE 8 of 84 TRAINING MANUAL
FEATURES, continued
BUILT-IN HEATER
The internal heater helps maintain the water at
its optimal temperature for selected cycles. The
SANITARY cycle kills most common germs and
bacteria.
CHILD LOCK
This allows the user to lock the controls. Children
then cannot play with the buttons and disturb the
wash cycle.
USE ONLY HE DETERGENT
(HIGH EFFICIENCY)
Use only HE detergents. These machines need no
more than 2 tablespoons of powdered or 1 ounce
of liquid detergent for a load. Overuse of laundry
products will reduce efficiency and cause buildup
and odors in the machine.
Use fabric softener sparingly. We suggest no
more than 2 teaspoons per load.
Be careful when using the Ultra or X-tra
concentrated brands, because very thick or
highly viscous liquids do not dispense properly.
You might need to use a different product or dilute
your preferred product before putting it into the
dispenser.
Remember, these machines use small amounts of
water, so you need small amounts of detergent,
softener, and bleach.

WM2277 WASHER PAGE 9 of 84 TRAINING MANUAL
SERIAL NUMBER INFORMATION
The serial number is unique to each product. It gives information concerning the
time and place of manufacture. The serial number is required to be paid for
warranty service and to get the correct part in the event a running production
change was made. Some models may have four (4) letters instead of two (2) for
the product code number. The third and fourth letters are significant only to the
manufacturing facility.
This chart will help you decode the serial number.
Eventually, serial numbers will all be migrated to this new format, which includes
a sequential production number, model code, date code, and other information.

WM2277 WASHER PAGE 10 of 84 TRAINING MANUAL
FUZZY LOGIC
To get the best washing performance, the user selects one of the standard
cycles. Sensors in the washer allow the microprocessor to make an infinitely
variable number of adjustments as the cycle progresses. Adjustments are made
automatically for load size, incoming water temperature, soil level, rinses
required, and other variables.
DOOR LOCK
The door has an automatic, electrically operated lock system. When the machine
is off or paused, the door can be opened by pulling it. When the machine is
operating, the electric latch keeps the door closed.
The door cannot be opened:
•When the washer is operating
•When the power failed or the washer is unplugged
(until the capacitor discharges and releases the lock)
•When the DOOR LOCK light is on
•When the drum is still turning
DOOR LOCKED LAMP
The DOOR LOCK lamp lights:
•When the washer is operating
•When the water level sensor frequency is lower than 22.9 kHz
•When the temperature inside the tub is over 45° C (113°F)

WM2277 WASHER PAGE 11 of 84 TRAINING MANUAL
WATER CIRCULATION (Some Versions)
On earlier versions of the WM2277, the recirculation pump circulates the water
during most of the cycle. Later versions do not include the recirculation pump.
During the WASH cycle, the pump runs continuously for the first 3 minutes and
then intermittently throughout the cycle. During the RINSE cycle, it runs
continuously as soon as the appropriate amount of rinse water has been added.
This recirculated water enters the drum at the top of the door at a small shower
head. This spray not only keeps the window and gasket clean, it allows the
clothes to be soaked with detergent or rinse water more quickly and can be used
to control an oversudsing event.
The recirculation pump is separate
from the drain pump, but they are
attached to opposite sides of the
filter housing.
The pump(s) and filter are located at
the bottom left front corner. The filter
can be unscrewed, cleaned, and
replaced. Earlier versions include
a recirculation pump; later versions
do not.
Use the small drain hose to
evacuate the water remaining in the
bottom of the tub before removing
the filter.
DRAIN RECIRCULATION
The drain pump is on the left and
exhausts the water via the gray
corrugated hose.
Older versions of the 2277 have a
recirculating pump on the right,
which recirculates water from the tub
to the shower spray at the top of the
door gasket via the smaller black
hose. Newer versions do not have
the recirculating pump. (See pages
54 and 63.)

WM2277 WASHER PAGE 12 of 84 TRAINING MANUAL
PARTS IDENTIFICATION
(Front of Washer)
(Back of washer)

WM2277 WASHER PAGE 13 of 84 TRAINING MANUAL
The air vent on the back of the machine must be left open and clear at all times.
If the washer is installed in a closet or closed laundry alcove, there must be
sufficient clearance and ventilation. The closet should have a full louvered door
with at least 800 square inches (0.5 m2) of open area for ventilation.
The washer requires a space of at least 1 inch (2.5 cm) between the wall and the
machine on each side and at least 4 inches (10 cm) between the back of the
washer and the wall. Additional space may be needed for servicing.
ACCESSORIES
The washer comes with the two input hoses. The blue stripe is for cold water and
the red stripe is for hot water. The hoses are NOT mechanically identical; it is
critical to the performance of the washer to have the hot and cold hoses
connected correctly.
The wrench is used to remove (and replace) the shipping bolts and to adjust the
leveling feet. Be sure to leave it and encourage the customer to retain the wrench,
the four shipping bolts, and the manual in a safe place in the event the washer
requires service or the customer moves.
The shipping bolts MUST BE
REMOVED before operating the
washer. (See page 13.)
Use the wrench supplied or a socket
wrench for speed. Notice there is a
piece of tape securing the cord and
reminding the installer to remove the
bolts before connecting the cord.
There is also a clip on one of the bolts
to prevent connection before the bolts
are removed.

WM2277 WASHER PAGE 14 of 84 TRAINING MANUAL
INSTALLATION
Unpack the washer near the installation
area. Cut the straps and lift off the box.
Check the packing materials for
manuals and accessories before
discarding them.
Notice the wrench packed in the foam
shipping base. This will be used to
level the legs and to remove the
shipping bolts.
Be sure to remove the foam block from
the base of the washer.

WM2277 WASHER PAGE 15 of 84 TRAINING MANUAL
Remove the shipping bolts when you
get the washer into the utility room and
not before. Save the bolts in case the
washer must be moved for servicing or
relocation.
Notice that one of the bolts has a
retainer clip for securing the cord. This
is another way to encourage the
removal of the shipping bolts.
The power cord is taped to the back of
the machine with a sticker reminding
the installer or customer to remove the
shipping bolts before installing or using
the washer.
It is imperative that these bolts be
removed; if they remain in place,
serious damage will result when the
washer is operated.

WM2277 WASHER PAGE 16 of 84 TRAINING MANUAL
INSTALL THE WASHER ON A FIRM, FLAT SURFACE.
ADJUST THE FEET TO BE LEVEL.
This photo shows the leveling leg with
plastic foot and locking ring. After
adjusting the foot by using the wrench
to raise or lower it. You can lock the
adjustment into place by tightening the
lock ring against the underside of the
washer.
Use a spirit level to adjust the feet to
make the washer level. You may have
to adjust more than one foot to get the
desired results. The legs must be firmly
against the floor, and the washer must
be level in all directions: front to back,
left to right, and corner to corner.
Proper leveling will minimize shaking
and vibration.

WM2277 WASHER PAGE 17 of 84 TRAINING MANUAL
INSTALLATION (PEDESTAL KIT)
This procedure covers installing and leveling the 7½” and 13” pedestals for 27”
washers, dryers, and combos. If the products are stacked, the washer must be
below the dryer, and you’ll use only one pedestal.
1. Remove the pedestal,
installation hardware, and
instructions form the shipping
carton. Set the pedestal as close
to the installation position as
possible.
2. Level the pedestal on a flat, solid
floor before proceeding. Lock
down the rear adjusters but
leave the front ones free for now.
3. Note which holes are for the
washer and which are for the
dryer. If you are stacking the
appliances, the washer must
be on the bottom.
4. Remove the protective paper
from the adhesive surface of the
bracket. Be particularly careful,
because when the adhesive
makes contact, there is no
adjustment possible.

WM2277 WASHER PAGE 18 of 84 TRAINING MANUAL
PEDESTAL, continued
5. Depending upon the model, your
pedestal may have straight or
curved brackets. The curved
ones are to be used on the rear
positions when mounting a dryer
to a pedestal, but can also be
used in any other position on the
pedestal.
6. Holding the exposed adhesive
away from the appliance, insert
the screws and get them started.
Then press the brackets to the
appliance and tighten all the
screws. Rub the bracket from
side to side to ensure a
complete bond.
7. Use the wrench to turn each leg
of the appliance approximately
¼ turn to put a little pressure
between the appliance and the
pedestal. This will eliminate any
rattles.
8. If you are stacking the dryer on
top of the washer, it is usually
easier to set the pedestal and
washer into place and connect
the water and drain hoses
before placing the dryer on top.

WM2277 WASHER PAGE 19 of 84 TRAINING MANUAL
CONNECTIONS
WATER
Be sure the rubber washer is inside the hose end. Attach the hoses to the
washer (red is HOT, blue is COLD). Tighten them firmly but don’t strip the plastic
threads on the washer connections. Be sure to use the correct hoses for HOT
and COLD. The hoses may look mechanically identical, but the hot hose is
marked with a RED stripe and can withstand higher temperatures and pressures.
DRAIN
The drain pipe should be firmly attached to the standpipe or the laundry tub or
sink where it drains. The pump has sufficient power to cause the pipe to move
around when the water is expelled. The pump can lift the drain water a maximum
of 96 inches (2.4 m), but there is no minimum height requirement. The vacuum
breaker in the drain line will prevent drainage by gravity or siphoning. The hose
can lay flat into a floor drain as long as the end of it is not submerged.
ELECTRICAL
The washer requires a 120 VAC, 60 Hz., dedicated, 15-amp circuit.

WM2277 WASHER PAGE 20 of 84 TRAINING MANUAL
CONTROL PANEL
The control panel is located on the front of the washer. All options are available
from the control panel. (See larger drawing, page 20.)
Cycle Knob
The large knob that selects the cycle. (See chart, p. 21.)
ON/OFF button Pressing this button turns the machine ON or OFF.
START/PAUSE Press this button to start the cycle or to pause the
washer when a cycle is in progress. The door may not
unlock in every case. (See page 8.)
Custom Program Set the controls for a special cycle that you use often,
then press and hold this button to set that cycle. Then
use this button every time you wish to use your special,
custom cycle.
Delay Wash Set the cycle controls and then press this button up to
12 times to delay the start of the cycle for up to 12
hours.
Wash / Rinse Selects one of the wash and rinse temperature
combinations available.
Spin Speed Selects one of the available spin speeds between 0 (no
spin) and 1,150 rpm.
Soil Level Adjusts the default washing time by ±16 minutes based
on soil level.
Beeper
Adjusts the warning tone from OFF to LOUD in 5 steps.
Option Buttons See the chart on the next page.

WM2277 WASHER PAGE 21 of 84 TRAINING MANUAL
OPTION BUTTONS
PRE-WASH Press to add a pre-wash cycle.
* Child Lock (Press and hold to select or
deselect the Child Lock function)
RINSE+SPIN Press after power-up without
selecting a cycle to RINSE and
SPIN only, without washing!
EXTRA RINSE Press to add an EXTRA RINSE
cycle.
*Tub Clean (Press and hold to run a tub
cleaning cycle.
The washer must be empty!)
STAIN CYCLE Press to add an additional 16
minutes of washing time to any
cycle.
(Press and hold until the machine
beeps to adjust the spin speeds
lower to decrease vibration.
WATER PLUS Press to add up to one gallon extra
water to the wash and rinse cycles.
To select the optional feature, follow the instructions in
parentheses.
OPTION CHART
MAX WATER TEMP
Extra Hot 158° F
Hot 122° F
Warm 104° F
Cold 77° F
SPIN SPEED
Extra High 1,150
High 980
Normal 960
Low 600
SOIL LEVEL
adds time to
wash and
spin cycles
STAIN CYCLE
adds time and
changes
temperature
Press DELAY WASH and SOIL LEVEL to read the drum RPM.
Press DELAY WASH and PRE WASH to read the water temperature in ° C.
Press DELAY WASH and BEEPER to read the water level frequency.

WM2277 WASHER PAGE 22 of 84 TRAINING MANUAL
WM2277** Control Panel (New Version)