Post on 10-Apr-2018
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STUDY COURSE
UNDERSTANDING DISHWASHER:
MECHANICAL COMPONENTS
Module 1LIT 4314189 Rev. A
DISHWASHER and COMPACTOR
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All rights r eserved. No portion of th is book ma y be repr oduced in any form with out
written permission from WHIRLPOOL CORPORATION.
1990, 1998 WHIRLPOOL CORPORATION
WHIRLPOOL CORPORATION does not assu me an y responsibilityor a ny liability in conn ection with th e use of th is ma nu al.
The trademar ks WHIRLPOOL , , , andFSP ar e registeredtrademarks of Whirlpool Corporation.
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INTRODUCTION
The mat erial presented in th is module is inten ded to provide you with an un dersta nding of the
fundam enta ls of dishwasher an d tra sh m ash er compactor servicing.
Major a ppliances have become more sophisticated, takin g them out of th e screwdriver a nd pliers
category. Their electrical circuits include several different types of automatic controls, switches,
heaters, valves, etc. . Semiconductors, solid-state controls, and other components usually
associated with radio and television electronic circuits are being engineered into automatic
washer s, dryers, dishwash ers, and refrigerat ors.
The appliance technician is emerging into a professional status of his own. He must prepare
himself now to be able to perform his dut ies today as well as to reta in his pr ofessiona lism in th e
future.
No longer is on-th e-job tr ain ing sufficient to prepa re t echnicians for t he complicated pr ocedu res
required for t odays sophisticated applian ces. This tra ining can best be obtained th rough organized
classroom study and application. However, much of the knowledge necessary to service todays
appliances can be obtained through study courses. Completion of this and other courses will
provide you with su fficient un dersta nding of applian ces a nd t heir operat ion t o enable you to do
minor service. It will also serve as a valuable stepping stone to more adva nced study a nd on-the-
job tra ining t o impr ove your servicing skills.
Informa tion contained in t his module is used on WHIRLPOOL appliances. It is separat ed into
two sections for your convenience. Chapter 1 covers porcelain liner models (1986 and older), and
Chapt er 2 covers plast ic liner m odels (1986 an d n ewer).
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CHAP TER 1 ......................................................................................... 3MECHANICAL COMPONENTS for P orce lian Lin er Mode ls-1986 and Older.
CHAP TER 2 ....................................................................................... 1 5MECHANICAL COMPONENTS for P lastic Liner Mode ls-1986 and New er.
*TEST ......................................................See Test Book LIT4314204
*N O T E: We recom m en d t a k i n g t h e TES T for MOD U LE 1, r i g h t
a fter s tud ying i t .
PAGE
TABLE of CONTENTS
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END CAPS
These plastic end caps are located on each side of
th e console escut cheon a nd a re h eld on by screws.
CONSOLE ACCESS
To get to parts behind the console panel, first; open
the door. Remove the screws holding the end caps
then the screws on top and underneath the panel.
Remove the timer knob and dial, and possibly the
ha ndle (screwed on) if used in th is area .
RELEASE LEVER / DOOR LATCH
These parts are located in the middle under the
console and can be removed through the console
access procedure. To remove the lever, pull the pin
holding th e lever to the door latch. The door latch is
held on by screws.
DOOR TRIMS
These parts ar e made of aluminum a nd ar e used on
each side of the door. Not only used for decorative
pur poses it a lso holds the front pa nel on. They can
be removed by removing th e end caps, then remove
the screws holding th e door t rims t o the door fram e.
CHAPTER 1
MECHANICAL COMP ONENTS
(for P orce lain Lin er Mod els : 1986 and Olde r)
REMOVE END
CAP SCREWS
(BOTH SIDES)
SCREWS
LATCH
PIN
LEVER
DOOR
TRIM
SCREWS
CONSOLE
PANEL
SCREWS
CONSOLE
PANEL
SCREWS
END CAP
SCREWS
(BOTH SIDES)UNSCREW TIMER
KNOB ( ) AND
PULL OFF DIAL
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DOOR ACCESS
To get at some part s on the door, one end cap m ust
be removed first, this is screwed in place. Next onth e sam e side, remove th e screws holding th e door
trim on. Slide the door panels (if used) out of the
door frame. Remove the metal clips on each side
then bend the cardboard door barrier down to ex-
pose the par ts.
RETAINER BUTTONS
This par t is located on the door and is used to hold
the silverware and utensil baskets to the door.
These par ts can be rea ched th rough th e door a ccess
procedure. These pa rts ar e held on by screws. When
replacing, make su re th ere is a clear sponge washer
glued to the back of the button to eliminate any
leaking.
WETTING AGENT DISPENSER
This part is located on the left side of the door. It
dispenses a wetting agent just before the final
rinse. This causes water breakdown during rinse.
The water then runs off the dishes and silverware,
leaving fewer or n o spots. This par t can be reached
through the door access procedure. Then open thedoor a nd u nscrew the n ut an d cap (see below).
DETERGENT D ISPENSERLocated on the left side of the door, detergent is
placed either in the open compartment, the com-
partment with a door or both. This part can be
reached through the door access procedure. Then
remove the screws holding t he dispenser to th e door
(see above).
CARDBOARD
BARRIER
WETTING
AGENT
DISPENSER
DETERGENT
DISPENSER
CAP & NUT
CAP
WITH
LID
WITHOUT
LID
WETTING
AGENT
DISPENSER
DETERGENT
DISPENSER
RETAINER
INNER DOOR
PANEL
METAL DOOR
LINERSCREW
SPONGE
WASHER
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BELOW THE TUB ACCESS
On built-in-models, lower parts are accessed by re-
moving screws holding the access panel to the
frame.
To get to some of the lower parts on portable mod-
els, first; remove the a ccess pa nel end caps from t he
hole in t he side trim.
Next, remove th e rubber caps and torsion bar s from
th e access pan el.
Now remove the coverplate which is held on with
screws an d once rem oved, par ts will be exposed.
FLOAT SWITCH
Locat ed inside the t ub in t he right -front corner , this
float r ises as the wat er rises and st ops th e water fill
before it leaks onto the floor. It can be removed
thr ough th e access pan el (see below th e tu b access
procedure). This part is held to the tub by screws.
Make sure the rubber gasket is in place when re-
placing.
SCREWS
ACCESS
PANEL
ACCESS PANEL
END CAPTRIM
HOLE
STUD
DOOR
(OPEN)
ACCESS
PANEL
CAP
TORSION
BAR
SCREWS
(BOTH SIDES)
FLOAT
BOTTOM
OF TUB
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TOP
This top is made of ha rd m aple an d can be removed
by opening the door and removing the screws that
ar e located on each side of th e cabin et.
Lift and slide the top toward the front. This will
release the special screws, in the back of the top,
from t he slots in the cabinet.
DOOR GASKET
This part is moun ted on the tu b between the front of
th e tub an d behind th e door. It acts as a seal to keep
water from leaking out of the dishwasher. Pull the
ru bber down somewhat to expose the meta l retainer
and screws. NOTE: On porta ble models the tub
MUST be supported before removing the gasket.
Remove the access panel (below the tub access pro-
cedure) and place a block of wood under the motor
to keep th e tu b from falling.
NOZZLE CAP
The nozzle cap (see below) is located below the
lower dishrack and screws on, holding the lower
spray arm to the pump a nd motor. It also expands
from water pressure and seals to the bottom of the
tower during the wash cycle. This causes a water
stream u pward, to the upper spray arm . This cap ishollow an d is ma de from a flexible black ru bber boot
with a lar ge center hole.
LOWER SPRAY ARM
This part (see above), located under the lower
dishrack, has domed jets that enable the nozzle
openings to be aimed at wide angles in all direc-
tions. The jet streams from these nozzles give a
balanced combination of water pressure and watervolume to chisel the soil off and give a thorough
washing action t hroughout the t ub without abusing
the dishes.
UPP ER SP RAY ARM
Located on the bottom of the upper dishrack , this
upper spray arm helps eliminate dead spots caused
by large bowls or pots in the bottom rack, blocking
the wat er action to dishes in th e upper ra ck.
TOP
SCREW
(BOTH SIDES)
CABINET
SLOT
THIS SCREW MUST
FIT INTO CABINET
FLANGE NOTCH
(BOTH SIDES)
SEAL
RETAINER
(L.H. SIDE)
RETAINER
(R.H. SIDE)
NOZZLE
CAP
LOWER
SPRAY
ARM
UPPER
SPRAY
ARM
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SPRAY ARM ROTATION
A jet at each end of both spray arms causes the
arms to revolve during wash and rinse. The lower
arm turns clockwise and the upper arm turns
counterclockwise.
LOWER DIS HRACK / TOWER
The lower dishrack rides in and out of the tub by
wheels mounted in each corner. Dishes are placed
in th e ra ck for cleaning.
The t ower is located in th e middle of the ra ck a nd is
used t o keep water in a jet-like str eam, forcing the
water up into the upper spray arm.
SILVERWARE / UTEN SIL B ASKETS
These par ts (see above) are m oun ted t o the door a nd
can be rem oved by lifting th em off the ret ainer but-
tons.
VENT GRILL / VENT S CREEN
The grill on the outside (see above) and the screen
on the inside (see below), are located in the upper
corner of the door. During th e wash an d dr y cycles,
hot air comes out t his opening.
Remove by using a small blade screwdriver, insert -
ing it between the upper part of the vent or screen
an d pry th e tabs out t he holes. To replace, place thebott om in th e slot first , then push th e top part back
un til it snaps int o place.
The vent an d screen a llows air to circulate. This is
required t o dry dishes. Dry room air is pulled in at
the bottom of the door. It flows upward by convec-
tion, picking up moisture from th e wet dishes, an d
escapes th rough the vent an d screen.
TOWER
LOWER
DISHRACK
SILVERWARE/
UTENSIL BASKET
GRILL
SCREEN
ROOM
AIR
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WATER INLET
This par t is locat ed on th e outside of the tub, lower-
left front corner an d creats an air ga p for incoming
water.
By removing the n ut inside the tu b, it can be pu lled
down between the tub and cabinet to be replaced.
Be sure the ru bber gasket is on th e replacement .
DOOR SPRINGS and ADJUSTMENT
This part is located behind the access panel (see
below) on Porta ble models a nd on th e outside frame
on Built-In models.
Adjust the door springs so the door closes easily
without slamming and stays open with its own
weight.
The retainer goes through th e spring and at taches
to the door support at one end an d the frame at the
other end. This spring and retainer supply tension
to the door.
Move the spring down for more tension, up for less
tension.
REQUIRED
INLET
AIR GAP
WATER
INLET
TUBE
TUB
NUT
DOOR
SPRING
LOWER
ACCESS PANEL
SPRING
RETAINER
RETAINER
HIGH
(LESS TENSION)
LOW
(MORE TENSION)
ADJUSTMENT
NOTCHES
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PU MP an d MOTOR (P OWER CLEAN)
The Power Clean P um p washing system includes a
food grinder and system for separating the food
particles from the recirculating wash/rinse water.
The food particles are collected by centrifugal
force in a settl ing chamber. During pumpout(drain) the dr aining a ction of the power clean m od-
ule flush es th e food par ticles down t he dr ain.
WASHING AND RINSING
Operation of the power clean module is as follows:
Water is dr awn int o the power clean m odule by the
clockwise rotation of the wash impeller. This water
is drawn up past the chopper blade, then through
the perforated plate. Any large food particles are
broken down by th e food grinder . THIS P ROCESS
MAY RESULT IN A GRINDING SOUND BEING
HEARD. Items like olive pits or egg shells can re-
sult in a grinding sound being heard for most of a
cycle. If the grinding sound is heard for several
cycles, an item th at can not be ground u p ma y have
gotten into the Power Clean Module.
At the start of wash, the drain impeller rotation
cau ses a sma ll amoun t of pressur e which resists th e
pressure being built up by the wash impeller. This
allows the wash impeller to pressurize the separa-
tor. The pressure actuates the drain valve dia-
phragm, overcoming the resistance of the valve
spring an d closing th e dra in valve. The separ ator is
now isolated from the dr ain pu mp.
The pum p au tomatically separa tes th e soil from the
wat er. This is h ow its done.
The centrifugal force caused by the wash impeller
distributes t he soil on t he inside wall an d is concen-
trat ed in th e annu lar chamber and forced thr ough a
small opening into the separator. The soil in the
concentr at e or slurr y settles out in t he separ ator.
The water leaving the separator is pumped on
through the spray arms. This system quickly re-
moves th e soil from th e water charge.
WASH
IMPELLER
PERFORTED
PLATE
DRIAIN
IMPELLER
PRESSURE FROM
WASH IMPELLER
PRESSURE FROM
DRAIN IMPELLER
SEPARATOR
PUMP
BASE
VALVE
(CLOSED
POSITION)
SMALL OPENING
IN SEPARATOR
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Water in t he separ at or is fed down th e siphon tu be
and ball check, through the inlet base and enters
th e washer impeller chamber th rough a sma ll bleed
hole in its base.
DRAIN
As the m otor pau ses before going into coun ter clock-
wise drain r otation, the wash impeller is no longer
rotating and pressurizing the separat or. The drain
valve (which is n ormally open) opens a nd th e sepa-
ra tor is now open to dra in.
The pressure difference pulls the ball check closed.
Even though the wash impeller is turning opposite
its normal rotation, it still forces a water supply
through the separator, which washes the soil past
the open drain valve and out the dr ain.
TEAR D OWN
IMPORTANT: All seals and/or gask ets t ha t a re ex-
p o s e d d u r i n g p a r t i a l o r c o m p l e t e t e a r d o w n
SHOULD be r eplaced.
See BELOW THE TUB ACCESS PROCEDURE to
disassemble some of th e par ts.
There ar e four rubber grommets securing the pum p
and motor assembly to the underside of the tub.
Rotat e these inwar d 90.
Disconnect the motor harness connectors and the
green ground wire.
Remove the clamp and drain hose off the check
valve, then remove the check valve. NOTE: Thereshould be a round rubber O ring on the check
valve when its rem oved from th e pum p. If not, it
could be stuck in the h ole in th e pum p. It will have
to be removed an d put on the check valve.
Open th e door a nd r emove the lower dishr ack, then
unscrew and remove the nozzle cap, bearing, and
the spray arm.
SIPHON
TUBE
DRAIN
VALVE
TO DRAIN
POWER CLEAN
PUMP
PUMP
BASE
ABOVE THE
TUB
BELOW THE TUB
GROMMETS
(SHOWN ROTATED
INWARD 90)
HARNESS
CONNECTOR
SPRAY
ARM
NOZZLE
CAP
NOZZLEBEARING
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Remove the sump guard, sump screen, or grate,
whichever is used on your m odel.
Remove the pu mp an d motor by pulling up thr ough
th e inside of the tu b.
Remove the screws holding the pump outlet to the
separa tor. Then rem ove the pump outlet.
Remove the impeller screw. Use a wrench on the
hexa gon flats m olded on th e impeller to keep it from
turning when the screw is removed. Then remove
the wash impeller.
Remove the screws holding the separator to the
base.
A leaking drain valve diaph ragm a nd/or a da maged
stopper requires replacing the drain valve stopper,
stem and diaphra gm, and spring.
GUARD/SCREEN
OR GRATE
PUMP
OUTLET
SCREWS
SEPARATOR
SEPARATOR
PUMP
OUTLET
SEALWASH
IMPELLER
WASH
IMPELLER
SCREW
SEPARATOR
SCREWS
STOPPERSTEM &
DIAPHRAGMSPRING
SCREWS
DRAIN VALVE
COVER
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To test, push the drain valve stopper in to seal the
vent hole.
If stopper stays in, the diaphragm is good. If it
comes back out, it is leaking an d mu st be r eplaced.
If the perforated plate is damaged, it must be re-
placed. Remove the screws h olding the inlet base t o
th e bottom of the separ ator. Remove th e gasket lo-
cated in the groove in the inlet base and throw
away.
NOTE : Do not lose th e ball check.
A damaged bushing, chopper blade, and/or spring
can be lifted off th e dra in impeller sh aft.
If the spring retaining holes in the drain impellerare da maged, the impeller mu st be replaced.
NOTE: The dra in impeller an d its mat ing seal head
assembly, must be replaced in pairs.
To replace the drain impeller and seal head assem-
bly, first remove the screw holding the drain cover
to the pump base. Remove the cover then lift the
dra in impeller off th e motor sha ft.
Next pry the seal off the motor shaft. Check the
pump base, if its cracked or dam aged in a ny way,the base mu st be r eplaced. Remove the screws hold-
ing the base to the motor.
SEAL
VENTHOLE
STOPPER
IN
SEAL
VENT
HOLE
STOPPEROUT
INLET
BASE
GASKET
BALL
CHECK
PERFORATED
PLATE
SEPARATOR
MATING TAB
AND NOTCH
DRAIN IMPELLER
SHAFT
PUMP BASE
TO COVER
LOCATING BOSS
DRAIN COVER
INLET SEAL
SCREW
SPRING & RETAINER
HOLE(S) IN
DRAIN IMPELLER
GRIND BUSHING
CHOPPER
BLADE
PUMP BASE
SPRING
(THERE IS ALSO A
BUSHING BETWEEN
THE SPRING AND
THE DRAIN
IMPELLER SHAFT)
SEAL
PUMP
BASE
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A SPECIAL CENTERING TOOL IS REQUIRED
TO REBUILD THIS PUMP ASSEMBLY
Reassemble the pum p base to the motor.
Lubricate the seal head with a non-detergent soap
(DO NOT USE DETERGENT OR PETROLEUM
PRODUCTS) before installing, then u sing th e large
end on the special centering tool, press the seal
down (turning the tool approximately 1/4 turn)
firmly over t he m otor sh aft.
Replace the drain impeller, then screw the drain
cover on th e base.
Assemble the sleeve, spring, chopper and grind
bushing, also make sure the spring is properly as-
sembled to the chopper blade and seated in one of
two retaining holes in drain impeller. Insert new
dra in cover seal.
Assemble new gasket to the inlet base, make sure
the ball check is in its pr oper place, then r eassemble
the perforated plate making sure the tabs are in
locating notches. Assemble the inlet base to the
separa tor with th e two screws by carefully sta rtin g
the screws to avoid stripping. The recommended
way is to turn the screw counterclockwise until you
can feel the threads backing off or bumping, thentur n clockwise to tighten .
Reassemble the separator to the base by using
screws, car efully star ting t he screws to avoid strip-
ping. The recommended way is to turn the screw
counterclockwise until you can feel the threads
backing off or bumping, then turn clockwise but,
DO NOT TIGHTEN yet.
NOTE: THE SMALL END OF THE
CENTERING TOOL MUST BE USED
TO CENTER THE PUMP BASE
TO THE MOTOR SHAFT.
PUMP BASE
RUBBER
GROMMETS
MOTOR
SCREWS
(4-MOTOR TO
PUMP BASE)
TOOL
SEAL
MOTOR
BASE
GRIND
BUSHING
CHOPPER
SPRING
PUMP
BASEDRAIN
COVER
SEAL
DRAIN
COVERSCREW
INLET
BASE
GASKET
BALLCHECK
PERFORATED
PLATE
SEPARATOR
PLATE TAB &
LOCATING NOTCH
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Place the large end of the special centering tool
down over the d rain impeller sh aft so tha t flange of
tool fits into opening of accumulator. This centers
a c c u m u l a t o r t o t h e r e s t o f a s s e m b l y . N o w
TIGHTEN th e screws.
Reassemble the drain valve part s to th e separator.
Reassemble the wash impeller, then the impeller
screw . Rotat e impeller a nd listen for r ubbing noise,
also check to see if impeller can be moved up and
down. If either occurs, parts have been left out or
not tightened dur ing reassembly.
Insert a new pump outlet seal into the separator
retaining groove.
Place the pump outlet cover over the separator
making sure it is seated over the two locating
bosses on the separator. Carefully start the screws
to avoid str ipping. The r ecommended way is t o turn
the screw counterclockwise until you can feel the
threads backing off or bumping, then turn clock-
wise to tight en.
Replace the pum p gasket whenever th e pump a nd
motor a ssembly is rem oved from t he t ub. Lubricate
the gasket with a non-detergent soap.
DO NOT USE DETERGENT OR PETROLEUM
PRODUCTS.
Place the pump and motor back into the tub, and
dont forget t o tur n t he r ubber clamps outwa rd 90.
Replace the check valve an d hook u p th e wiring and
hose conn ections.
TOOL
SEPARATOR
DRAIN
VALVE
SEPARATOR
SCREW
WASH
IMPELLER
PUMPOUTLET
SEAL
SEPARATOR
SCREWS
(OVER LOCATING BOSSES)
SEPARATOR
PUMP OUTLET
COVER
GASKET
RING
(PREASSEMBLED
IN GASKET GROOVE)
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CHAP TER 2
MECHANICAL COMP ONENTS
(for P lastic Line r Mode ls: 1986 and Ne w er)
DOOR P ANEL ACCESS
To cha nge th e door pa nel, slide th e door pa nel up a s
high as possible. Lift up at each end of the trim
piece at the bottom of the door panel and pull the
tr im piece toward you.
Use both hands to bow the panel outward and re-
move the panel from the door. Bow the new panel
outward with th e desired color facing out an d insert
into the door trim. Make sure the door panel and
the spacer fit under the top edge of the door trim.
Hold the panel up and insert the bottom piece. It
will snap down in place. Slide the door panel down
into the bottom t rim piece.
DOOR an d CONSOLE ACCESS
To access th e components in th e door a nd the con-
sole ar eas, r emove the eight (no. T-15) torx screws
which h old th e inner door pa nel to the door fra me
an d console.
RELEASE LEVER / DOOR LATCH
These parts are located in the middle under the
timer cover which can be r emoved by releasing th e
two retaining tabs. Remove the wiring harness
leads. Remove the two switch retaining pins and
remove the switches. The latch lever a nd bolt can
be separat ed at th is time by prying apar t th e lock-
ing tabs an d separa ting th e two pieces.
DOOR
PANEL
LEADS
RETAINING
PINS
RETAINING
SCREWS
PANEL
TRIM
PIECE
SPACER
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TIMER
Remove the t imer wiring har ness. The timer, cam ,
an d cam follower can be accessed by rem oving t he
three timer retaining screws.
NOTE: When reinsta lling the cam , be sur e it isaligned with the keyed shaft on the timer. When
reinstalling the timer, be sure the cam follower
post is p ositioned inside t he cams groove.
DISPENSER MECHANISM
To access the draw bars, first remove the drip
cover. Remove the draw bar spring. Slide the
lower dispenser dr aw bar down a s far a s it will go
to release it from th e locking ta bs.
Remove the upper and lower draw bars. Once they
are r emoved, the upper a nd lower dra w bars can be
separa ted from each other .
TIMER
CONTROL KNOB
CAM
TIMER
CAM
FOLLOWER
TIMER MOUNTING
SCREW (3)
DRAW BAR
SPRING
DRIP
COVER
CAM
TIMER
MECHANISM
STOP
DRAW BAR
(UPPER)
DRAW BAR
SPRING
DRAW BAR
(LOWER)
LOCKING
TAB
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ACTUATOR ASS EMBLY
The actuator assembly can be removed by prying
the bottom with a screwdriver and pivoting the as-
sembly up an d off.
NOTE: When reinsta lling the actuat or assembly,
be sure that the latch is positioned as shown here,
to insure proper operation of the detergent dis-
penser.
WETTING AGEN T
This par t is locat ed on th e right side of the door. It
dispenses a wetting agent just before the final
rinse. This causes water breakdown during rinse.
The water then runs off the dishes and silverware,
leaving fewer or no spots. To remove the wettingagent dispenser, unscrew and remove the wetting
agent cap assem bly. Use a dishwasher special pump
tool to release the locking tabs on the inside of the
door and remove the wetting agent dispenser from
the door.
The wetting agent actuator can be removed from
the wetting agent dispenser by releasing the two
locking tabs a nd rem oving the actua tor.
CAM
TIMER
MECHANISM
STOP
DRAW BAR(UPPER)
DRAW BAR
(LOWER)
ACTUATOR
ASSEMBLY
LATCH
TAB
SPECIAL
TOOLWETTING
AGENT
DISPENSER
ACTUATOR
ASSEMBLY
LOCKING
TABS
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To reassem ble the wettin g agent actua tor assembly,
the components should be replaced in the following
manner.
Insert t he diaphragm in the wetting agent reservoirmaking sure the bottom of the diaphragm is cen-
tered and seated on the seal surface. Insert the
spring into the diaph ra gm. Lock the guide onto th e
reservoir u sing the t wo locking ta bs. Insert the slide
into the guide and press on the end until i t snaps
into the diaphragm. Insert the actuator into the
guide until the actuator snaps over the slide. Snap
the wetting agent dispenser into the inner door
pan el an d replace th e cap.
NOTE: When r einstalling the dispenser mechanism
it is importa nt to cycle the timer thr ough a complete
cycle in order to reset t he dispenser mechanism.
DOOR GASKET
Starting at one end, pull the gasket out of the
groove and remove. Press the new gasket into the
groove, being sure t o position t he gask et so tha t t he
ends a re even with the ends of the groove, oth erwise
leaks will occur .
BELOW THE TUB ACCESS
To access the components under the dishwasher,
the toe panel and access panel must be removed.
Remove th e four access pa nel ret aining screws.
CHECK VALVE
The check valve can be replaced by removing the
hoses and r emoving the r etaining screw.
RETAINING
SCREWS
RETAINING
SCREW
SLIDE
SPRING
DIAPHRAGM
ACTUATOR
METERING
CHAMBER
DOORGASKET
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SOME MODE L S MAY USE T HE POWE R
CLEAN PU MP-SEE P AGE 9; OR SEE B ELOW.
P UMP a nd MOTOR (HORIZONTAL)
To remove the pump and motor assembly, first re-
move the dishwasher from the cabinet. Lay the
dishwasher on its back and disconnect the wiringharness.
Remove the motor support nu t a nd th en remove the
motor support.
Disconn ect t he dr ain h ose coupler from th e tu b an d
disconn ect th e pump inlet h ose from th e pump a nd
motor assem bly.
Open the dishwasher door and remove the lower
rack.
Using an adjustable slip nut wrench, loosen the
pump outlet nu t an d remove the spray arm assem-
bly an d the grommet washer.
The spray arm assembly can be disassembled by
rem oving th e (no. T-20) torx screw on t he bott om of
the assembly. Remove the support bearing assem-
bly, the pum p outlet nut , and th e split ring seal.
SUPPORT
SUPPORT
NUT
PUMP INLET
HOSE
DRAIN
HOSE
LOWER SPRAY ARM
ASSEMBLY
SPLIT RINGSEAL
PUMP OUTLET
NUT
SUPPORT & BEARING
ASSEMBLY
WASHER
BEARING
SHOULDER
SCREW
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At this point the pump and motor assembly can be
removed from the bottom of the dishwasher. The
pump outlet grommet can be removed from the in-
side of the tu b.
NOTE: Check the grommet for wear or dama ge and
repla ce it if necessar y.
Remove the three motor retaining (no. T-20) torx
screws and carefully remove th e motor.
NOTE: When reinstalling th e motor ma ke sure th e
keyed motor sha ft lines up with th e pump impeller.
The pump impeller can be accessed by using theadjusta ble slip-nu t wren ch to remove th e grey disk
mount assembly. The impeller can th en be removed.
The drain valve can be accessed by removing the
four (no. T-20) torx retaining screws by the drain
out let an d removing the cover. From th is point t he
drain cover seal, diaphragm, and diaphragm ring
can be removed an d replaced.
SOIL SE TTLER
Some models m ay cont ain a soil settler assembly. It
is located next t o the pu mp inlet h ose on t he bottom
of the tu b.
It can be accessed by removing the four retaining
screws. Disconnect the hoses and remove the as-
sembly. The funn el grat e, fun nel, ball, and collector
can be easily replaced at t his point .
RETAINING
SCREWS
SLIP-NUT
WRENCH
RETAINING
SCREWS
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BLANK
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BLANK