Danby DDW1802 - 14352 User manual

DEPT.73IA
TECHNICALFLASH
ServiceBranchManager
AssistantServiceBranch
Manager
CallCentreManager
Quality
EducationLeader T.F.
22-172
ocroBER 2004
CLAUDE BABINEAU
_ S/73IA
DIVISION22
461
DANBY
DISHWASHER
DDW18o2
- 14352
DDW1805
- 17352
SERVICEMANUAL
CLAUDEBABINEAU-
DEPARTMENT731A
CHRIS
BURNELL-DEPARTMENT731A

INDEX
1. PRODUGT
SPEGIFIGATIONS
2. SCHEMATIC DIAGRAM
3. WIRING DIAGRAM
4. TIMER CYCLEGHART
5. COMPONENT OPERAilON AND REPAIR
6. TROUBLE SHOOTING
7. PARTS LIST AND DIAGRAM

SPECIFICATION
MODEL DDW1802 and DDW1805
ELECT
RICAL
Ratinq 120V60Hz
Motor
(HP) 1t5
Motor
(Amos)
Heater
Wattaqe 1000w
Wash
TotalAmre (Load
Rated) 9.24
Thermostat
Contacts
Close
at 127"F!5"F
58nt3l
WATER
SUPPLY
Suggested Min. Incoming Water
Temperature 120,rto 150.r
49, to 66.
Pressure
(PSl)
Minimum/Maxim
um 15/120PSI
Connection
(NPT) 318"
Consumption
(Toil
Gallons) 3.5r5%
WaterValve
Flow
Rate
(GPM) 1.08GPMt10%

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TIMER CYCLE
CHART
6
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COMPOruEruT
OPERATION
AND
REPAIR
SAFETYPRECATIONS
Always turn off the electricpower supply before servicing
any electrical
component,
making
ohmmeterchecks,
orreplacing
any
parts.
Allvoltage
checks
should
bemade witha voltmeter
having
a fullscale
range
of
130volts
orhigher.
After
serviceiscompleted,
besureall
safety-grounding
circuits
arecomplete,
all
electrical
connections
aresecure,
and
all
access
panels
areinplace.
TIMER
With
thetimer,
userselects
thevarious
cleaning
cyclesof thedishwasher.
The
timer
controls
all
theelectricalfunctions
ofthedishwasher inallstages
of each
cycle.Allfunctions
canbetraced
onthechart.Diagram
provided
inthis
service
manual.
ToTestTheTimer
lf thetimerissuspected
offaultyoperation,
reference
timerchartand
electrical
schematic
diagram
and
proceed
asfollows:
1. lndex
thetimer
to thefirstincrement
of the normal
cycle,
whichis a drain
period.
2. lf the pump
motorfails
to operate
during
thefirst
cycleincrement,
check
for
power
atthe
pump
motor
connector
block,if
there
isno
power
check
thedoor
latch
switch,
if thereis power,
check
thepump motoras describedin this
section.
3. lfthe
pump
motor
does
operate,let
thetimermotor
advancethe
timer
through
the drainincrement
to determine
if thetimermotoranddrivetrain
arefully
operative.
4. Let the timeradvance,
or indexit forward
to the portion
of the cycle in
question.
5. lfa component
controlled
bythetimerfails
tofunctionasthetimer
advances
through
thecycle,
checkforvoltage
atthetimerterminals.lfthe
checkvoltage
is suppliedto the component,
check
the component
as described
in this
section.
Continuity
through
timercontacts,
othercontrols,
and wires can also be
checked
with
anohmmeter
with
electrical
power
disconnected.
lf thetimers
contactsfail
to closeinthesequence
shownonthetimer
chart
areburned
(have
resistance
measurable
with
anohmmeter),
oriftimer
does
not
advanceautomatically,
replace
thetimer.
ToReplaceTimer
1. Disconnect
dishwasher
from
electricalsupply.
2. Remove
the
timerknob.

Figure
1 Figure
2
Remove
the
screwswhich
locking
thecontrol
panel
{See
figr.rre't).Rernove
theknob
and
unscrew
thetwoscrewswhich
iocking
the
timeronthecontrol
pane!"
{See
Figure
2.)
Take
down
thedarnaged
timerandinsbll a newtirner,
revers6
procedures
to cornplete
Figure 3Figure 4
DOOR
LATCH
ANDSWITCI.I
A$SEIIilBLY
Tire latch and switchare locatedin the docr assembly
behindthe controlpanel.The
dishwasherwillnot
operate
untiltlre
door
isclosed;
tfre
latch
engages
thedoorcatch.
I'o lresf
Or Replace
DoorSwitch.
1. Disconnect
dishwasher
fromelectrical
supply.
2- Renrove
s€re$/s
secu*rg thecontral panei
totheinnerdaor
{see Figure1}.
3. Remove wireleads
frornlatchswitcfi.
4, Useohrnrneter
and
check
switchfor
ccntinuitu
5. lfthe$/vitch
testsisgood-
Check
dishwasher
eiectrical
powef.
Citeck
lo seeiftirnerlsdefective"
lf switchisdefectiveremove
doorsvrkchfromlatchassennbly.
6. lnstall new
switcir
andreyerce
procedures
to cornplete repairs.
ToReplace
DoorLatctt
Assembly
1. Disconnect
dishwasfrerfrorn
dectrical
supply.
2. Rernove
scr€ws
securi*g
tjheconrolpanel
totheirrner door.
3. Rernovewire
badsfromdsorlakh andrernove
screwssecuring
doorlatchassembly
to
inner
door.
{$eeFigure
5.)

Figure5
4. lns(allnew
door
latch
assembly
and
reverse
procedures
tocornplete
repairs.
FLOAT
SWITCH
ASSEMBLY
The
waterfioat
assembly
islocated
inthenight
lower
side
ofthedishwasher
{the
portable
located
behindthe lower front
crosspiece).
When
toomuchwater enter
thedishwasher,thewaterwillenterthefloatsupportthroughtheoverflow
plpe,
thefloat
willmake
thefloating switchacts,
theelectricalsupply
tothewatervatue
willdisconnected
andthedrain
purnp
keep
on
working.
lftheswitch fails
tooperate.checkthefollowing:
. Looseconnection
attheswitchterminal.
. Switch
notinstalled
properly.
. Warped
stemonfloat,not contactingtheactuator blade.
. Float
supportrestricts
freefloatmovernent.
. Check
ifthefloat
support
iscracked.
. Food
orforeignmaterial
restrictinE
freefloatrnovernent.
Figure7
ToRemoveOr Rrylace Floaf Swfch
1. Dlsconnectdishwasher fromebctrical supply.
2. Rernove
electrical
leadsto floatswitch.
3" Take downtheswitch
ftornfloatsupport-
4^ Insbllnewfloat
$vitchand
reverse
procedures
tsco'mp{ete
repairs
{$ee
figure
6}
.lf therubber

TROUBLESHOOTING
Thetroubleshooting
cheeklist is commonfor all dishwashermodels.
They
usedifferent
parts
toaccomplishthesamethinganddiagnosiswill
remain
similar.
Whena problem
arises,anda possible
causeis listed,follow the test,
removeor replace
procedures
as outline in this servicemanual.The
wiring diagram,shematicand timer cycle chat is a necessitywhen
making
electrical
checks.Inmostcases
anohmmeter
will handle
allthe
testsnecessary.
Forcheckingany particular
cycleof operation,it absolutely
necessary
thatthecyclebe
setupasoutlined
intheproduct owner's
guide.
SYMPTOM CHECK
THE
FOLLOWNG REMENDY
Dishwasher will not
operationwhen
tum on efuse
(blow
nor
tripped)
rSupply line receptacle,wiring
harness.
oTimer
(contacts
openor burnt).
.Motor (inoperative, check
resistances).
oDoor
suritch
(open
contacts)
oDoorlatch not makingcontact
withdoorswitch.
Replacefuseor resetbreaker.
Repair
or replace.
Replace
timer.
Replacemotor.
Replace
doorswitch.
Replace or adiust to make
contact.
Dishwasher
stopwashing
butdraining oOverflow
occur. Checkthe reason of overflow
pulloutthe rubber
cap
waitfor
aminuteletwateroourout.
Water
can't pourout from
float support when pull
outtherubber
cao.
o Hole in the float supply is
jammed. Suck
withdustcleaneror other
letwater
pourout.
Dishwasherruns but not
heat .heaterelernent
(open).
oTimer
contacts
(open
or burnt).
oWiring or terminal (bumt or
broken).
. Thermostatis closed.
Replace
heater
element.
Replace
timer.
Repairor replace.
Reolace.
Dishwasher
willnot stop. rTimer motor
(inoperative).
rWiring or terminal (burnt or
broken).
oTimer
(open
or burntcontact).
Replacetimer.
Repairor replace.
Replace
timer.
Dishwasher runs with
doorooen oDefective
doorsafety
suritch. Replacedoorsafetyswitch.
Motor hums but will not
start
orrun. .startwinding(open).
.Motor (bad bearings or locked
rotorl-
Replac€
motor.
Replacemotor.
Motor trips out on in
terminalthermaloverload
protector.
.Start relaynotdroppingout.
.lmpropervoltage.
oSeal
faces
binding.
rMotor
shaft
binding.
oMotor
windings
shorted.
rGlass
orforeaonitemsinoumo.
Replacestartrelay.
Checkvoltage.
Repairor replace.
Repairor replace.
Repairmotor.
Clean
andcleararea.

Repeated dishwasher
cycles eTimer
(contacts
open
orburnt)
rMotor (inoperative, check
resistances).
Replace
timer.
Replace
timer.
Timer does not advance
automatically. .Timer
motor
(stalled
oropen).
rChecktimer for power
to timer
motor.
oTimer shaft binding or knob
interference
to escutcheon.
Replace
timer.
Replace
timer.
Repair
oradjust.
Dishwasher will not fill
with water. oWater
supplyturnsoff.
rDefective
inletvalve.
rCheck valve screen for
obstructions.
rDefective
floatswitch.
rTimercontacB(open
or burnt).
eWirinq
(broken
orburntl.
Turn
water
supply
on.
Replaceinlet
valve.
Disassemble
and
cleanscreen.
Replace
switch.
Replace
timer.
Repair
or replace.
lncomplete
water
fill. oLow
waterpressure.
oClogged water inlet valve
screen.
rTimer advanced
paststart of fill
cycle.
.Heavy water supply usage
elsewhere
inhome,
rKinked or restricted fill hose,
waterinlet
valve
tofilltunnel.
Minimum water pressure of
1sP.S.r
Clean
waterinlet
valve
screen.
Instruct
customer/user
to turn
timer dial to start indicator
mark.
Use dishwasher
when water
usageisataminimum.
Correct
asneeded.
Too
much
waterfill. .Water inlet
fill valve
defective.
oTimer
contacB
(open
orburnt).
.Float arm binding or out of
adjustment.
oPossibility
customer/user
tumed
timer
past
drain
cycle.
Replacewater
inlet
fillvalve.
Replace
timer.
Repair,
adjust
or replace.
Instruct
customer/user.
Dishwasher
will notpump
out. oDrain
pumpis restricted.
oDamaged
impeller.
oWiring or terminal (contacts
open
orburnt).
Clearrestrictions.
Replace
drain
pump.
Replace
timer.
Water
siphonsout. .Drainhose
loop
tolow.
oDrain
line connected
to a floor
drainnotvented.
Move
toproper
height.
Install
vent air gap at counter
top.
Water
leaks. .Sprayarmnotrotating
orsplit.
O Overcharge
ofwater.
oTub
seal
(torn,
worn
orloose).
oDishwasherdoor not sealing
properly.
oDishwasher
isnot
level_
oOverburden (wrong type of
detergent).
oHose
clamps
loose.
.Heater element mounting nuts
loose.
oWater
sealleaking.
oO-ring
isnotinposition.
oMotor and pump assembly not
seated
proper
intub linerbottom.
Check for proper rotation or
replace
spray
arm.
Check and correct for proper
fill.
Replacetubseal.
Adjust door latch assembly
and/or
strike.
Level
dishwasher
properly.
Instructs
customer/user.
Tighten
allclamps
securely.
Tighten
thenut.
Useanew water
seal.
Adjust the ring or replace a
new.
Replace
seal.
Poor
wash
ability. .Spray armnotrotating.
olmproper loading of dishes,
pans
andother.
.Detergentdispenser
inoperative.
rlnsufficient
amount
ofdetergent.
Orthedetergent
isold.
rDamaged or the impeller is
broken.
.Detergent notdissolve.
Checkfor proper
rotation.
Instructs customer/user on
proper loading per owner's
guide.
Repairor replace
dispenser.
On proper amount of fresh
deter
gent
to use.
Replace
pump
assembly.
Incoming
water
temperatureof
140"F is required to proper
dissolve
deteroent.

Poor
drying
ofdishes olmproper loading
ofdishes,
pots
andother.
.Heating
element
(open).
olncoming
water
temperaturetoo
low,
rWiring or terminal (broken or
burnt).
lnstruct customer/usr on
proper loading per owner' s
guide.
Replaceheatingelement.
lncoming water temperatureof
140"Ffor bestdrying results.
Replaceor repair.
Detergentcup will not
open. oCup
binding
oRoll pin retainer
or shaft broken.
oDefective bi-metal.
rTimer contact (ooen or broken).
Repairor replace.
Replace
pin,retainer
or shaft.
Repair
orreplace.
Reolacetimer.
Doorwill not lath. Door latchdamaqed. Replacedoor latch.
Rinse
agentliguid
willnot
eject. .Electromagnetic
valve
defective.
rRinse agent dispenser not
mounted
correctly.
.Plunger
stuckor heldin closed
oosition^
Replacevalve.
Mount
securelyto rear of inner
door
panel.
Free
plunger
or adjustplunger
release.
Rinseagent
liquid
leaks. ocontainer
cracker
orbroken.
oDefective
sealon plunger.
oOver
filling
container.
ReplaceGonEilner.
Replace
plunger.
Follow instructionsin owner's
manual.
Noisy
pump
assembly. .lmpellers not properly
shimmed
orrubbing.
oPump perts not properly
installed.
rDebris in bottom of tub sump
area.
oDefective
motorbearinqs.
Use shim gaugefurnished in
impeller and seal kit, when
sealsareproperly
shimmedthe
impellers will be in correct
operatingposition.
Inspect
andcorrect.
Cleanoutsumparea.
Replacemotor.
Dishwasher
continuesto
fill or continues to till
even though in case of
thereis no voltageto fill
valve.
oSomething (dart or foreign
material) under diaphragm in
waterinletvalve.
rDefective
waterinletfillvalve.
Clean water inlet valve or
replace.
Replacewaterinletvalve.
Detergent left in
dispenser. oDetergent
cup held or blocked
bylargedishes.
.Disp€nser wet when detergent
wasadded.
Onproper
loading
dishes.
Instructs
customer/user.
Softenerleaking oSoftener
broken.
oSoftener
nutloosen. Faeplace
sonener.
Screwdownsoftenercao.
Leakingform
air
inlet. .Air inlet
nutloose.
oAir
inlet
installuosidedown. Screwdownairinletnut. Reinstallairinletorooerlv.