Asko DW95 User manual

INDEX
DW95
DISHWASHERS

Content Page
Dishwashers
DW950, 951 952 95C 1-7
DW953, 354 955, 95FI 8-16

DW 950 / 951 / 952 / 95C
1. PROGRAMS DW 950, 951, 952, 95C
Rinse & Hold program
One rinse without heat.
Intensive wash program
3 pre-washes, main wash, 2 rinses and drying.
Basictemperature:65°Cinfirstpre-wash,mainwashandlast
rinse.30°Cinsecondpre-wash . 70°C in drying.
Normal wash program
Two pre-washes, main wash, 2 rinses and drying.
Basictemperature:30°Cinpre-wash, 55°C in main wash and
lastrinse.70°Cindrying.
Light wash program
One pre-wash, main wash, 2 rinses and drying.
Basictemperature:55°Cinmain wash and last rinse. 70°C in drying.
Rinse program
One rinse and drying.
Basictemperature:55°Cin rinse. 70°C in drying.
Plate heating
One drying sequence.
Basictemperature:65°C.

DW 950 / 951 / 952 / 95C
2. PROGRAM OPTIONS BUTTONS
Thedishwashercanhave1,2or3,optionpushbuttonsand 1 rotary switch for
watersoftner setting.
Drying heat
You can select drying with or without heat.
Temperature
Selectionbetween55°Cand 65°C in main wash, last rinse and in pre-washin
theIntensivewashprogram.
Program without heat (Pika pesu)
You can getaprogramwithout heat.
Setting of water softner (just softner machines)
Theopening time for the softener inletvalvecanbeadjusted to suit diffrent
degreesofwater hardness.
(3settingswhich can be set with screw driver).
123Pos 1 Waterhardness < 20°dH .
Pos2 Water hardness 20—35 °dH
Pos3 Water hardness > 35 °dH

DW 950 / 951 / 952 / 95C
CONTROL UNIT
DW951,952,95C hasan electro-mechanical timer.
CIRCULATION PUMP
The circulation pump consists of an asynchronous motor and pump,
constructedinanintegrated unit.A4µFcapacitoris fitted toensure
reliable starting of the circulation pump.
OUTLET PUMP
The outlet pump consists of a synchronous motor and pump, constructed
in anintegrated unit.
INLET VALVE
Dependingon model, there are three typesofinletvalves:
1.Withsafety valve:Two solenoids independant fromeachotheror valve
seatsareconnectedtoaunit.
2.Single-unit type:Asolenoidandvalve seat.
3.Softener valve:Twovalves inshunt,onefor theregenerationofthe softe
nerand theotherfornormal inlet.
HEATING ELEMENT
Heatingelementswiththe following capacities: 1800 W alt. , 2500 W
THERMOSTAT
Differentthermostats are mounted, depending onmodel:
30/70°C Thermostatwith twoswitch-off functionswiththe temperatures
30°C (reset at 22°C) and 70°C (reset at 62°C) for temperature
stopin pre-wash or drying,respectively.
64153° Thermostatwith twoswitch-off functionswiththe temperatures
64° C (reset at 56° C) and 53° C (reset at 45° C) for temperature
stopinmain wash and last rinse at high, or low temperature,
alternately.
60°C Thermostatwithoneswitch-offfunctions withthetemperatures
60°C(resetat52°C) for temperature stop in main-wash and last
rinseon models withouttemperatureselction.
HIGH TEMPERATURE CUTOUT
Thermostatwith switch-off-functionat 88°C,190°Fprevents theheating
elementfrom remaining continously energisedifthecontrol unit or thetimer
shouldfail.
ELECTRICAL FUNCTION

DW 950 / 951 / 952 / 95C
DOOR SWITCH
Amicroswitch senses that the door has been opened. Thisinterruptsthepro
gramand cutsthepower to all control components(motor, valves etc.). See
faultindicationsonpage7.
LEVEL SWITCH
Thelevel switch providesprotectionagainstoverfilling, interrupting thepower
supplyto theinletvalve andstartingthe outlet pump.
OVERFILL SWITCH
Afloat influencesamicroswitch which shutstheinlet valve andstartsthe outlet
pump.
COMBI DISPENSER
The combi doser doses both detergent and rinse aid .
Inthe doser there is an adjustable volume chamberforsettingofthede~ired
amountofrinseaid. On certain models there is a sensor for rinseaid level
mountedon thedoser.
MAIN SWITCH
Themain switch is a 2-poleswitch,interruptingboth the phase and neutral
supplies.
ELECTRICAL CORD
Themachines are fitted with 3x1,0mm2connectioncordsand earthed plugs.
Variationsoccur for differentmarkets.

DW 950 / 951 / 952 / 95C
ELECTRICAL SUPPLY
Asdelivered , the machines arewired forconnection to asingle-phase, 230V,
10Asupply, with aheaterMAINSWITCH
Themain switch is a 2-poleswitch,interruptingboth the phase and neutral
supplies. power of 1800 W, giving a total power requirement of 2000 W.
Alternative:single-phase,230V, 16A, heater power 3000 W totalpower
requirement 3200 W . Altemative: 2-phase, 400 V, 10A, heater power 3000
Wtotalpower requirement 3200 W.
SOFTNER
Oncertainmodelssensorforrinseaidlevelis mounted on the softner.This
indicatesbylackof salt.
FAN
Evacuatesthemoistairfrom the machine during the drying phase of the pro-
gram.
Thefansystem consistsofafanmotorwhichrunsa two partimpeller.Dryair
issuckedinfromthedoor into one of the impeller halves.Avax motor opens a
valve,and themoistairstreamsintotheotherpartof the impeller. Dry and moist
airaremixed and led into a channel to thelower part of the door, where it is let
out.

DW 950 / 951 / 952 / 95C
WATER SOFTENING
Thewatersofteneroperatesasfollows:
During rinse, pre-wash and main wash:
1. Inletvalve1opensandadmitswater.
2. Thewaterflows
•through hose 3 to air-brekdevice, no1
• passes an airgap
•leavesthe air-breakdevicethroughno.3
•passes hose 7 to theresin containerof thesofte-
ner,no3.
Therethewaterissoftenedandthesoftwaterflows
•outthroughno.4
• through hose 8 back to the air-break device no. 4
•entersthemachinethroughno.6.
1 Inletvalve1
2. Inletvalve2(regenerationvalve)
3. Hose IV1 - air-break device
4. Hose IV2 - air-break device
5. Air-break device
6. Inletopening
7. Hose air-break device no. 3- resin
containerno.3
8. Hose air-break device no. 4 – resin
containerno.4
9. Hose air-break device no. 5 - salt
containerno.5
10.Saltcontainer
11.Resincontainer
Hard water, containing lime,
Ca(HCO3)2flows into the resin
container. The Ca ions are
replaced by Na. Soft water,
containing Na(HCO3) flows
into the machine.
Regeneration during the main wash:
3. Whenthemachinehasadmittedwater,asdescribedabove,forthemainwash,inlet
valve2opensfor20,30or50seconds, dependingon thesetting.Thewaterflows
throughhose4totheair-breakdevice5,onthroughhose9andintosaltcontainerno.5.
Thesalt-saturatedwaterflowsintotheresincontainer,whereitregeneratestheresin,so
thatitcansoftenfurtherwater.
Ca
Na(HCO )
3
Na
Ca(HCO )
32
Resin container
1
3
4
2
5
7
8
6
9
10
11

DW 950 / 951 / 952 / 95C
THE SALT CONTAINER
Rinses
Rinse1startsbyflushingthewatersoftenersystemfor40-90seconds,
dependingonsetting, atthesametimeasthemachinepumpsout. This
is then followed by rinses as described in 1) and 2) above.
Ifhardwater(i.e.containinglime)isallowedtodryonthedishes,glasses
etc.,insolubledepositsof limewill beleft.
Ca(HCO3)2CaCO3+ CO2+ H2O
Insolublelime
Ifthewaterissoftenedwithsalt,sodiumcarbonateandcalciumchloride
areformed.Thesetwosaltsarewater-soluble,andleavenodeposits.
Ca(HCO3)2 + 2 NaCl = 2NaHCO3+ CaCl2
2NaHCO3Na2CO3+ CO2+H2O
Soluble soda
0,05 - 0,23 litres
ofwater flow
intothe salt
container,where
the Ca is
replacedby Na.
CaCl2isflushed
intothe
machine.
Ca
2NaCl
Na Cl
Na
CaCl
Na Cl
2

DW 953, 954, 955, 95FI
E
Start
Stop
DW 95.FI
DW 953
DW 954
DW 955
PROGRAMS DW 953, 954, 955, 95FI
Pots & Pans program
Two pre-washes, mainwash,4rinses and drying.
Basictemperature:45°Cinfirst pre-wash 70°C in main wash,
65°Cinlastrinse.
Strong wash program
Two pre-washes, main wash, 3 rinses and drying.
Basictemperature:45°Cinfirstpre-wash, 65°C in main wash and last rinse.
Normal wash program
Two pre-washes, main wash, 2 rinses and drying.
Basictemperature:30°Cinpre-wash,65°C in main wash and last rinse.
Light wash program
One pre-wash, main wash, 2 rinses and drying.
Basic temperature: 65°C in main wash and last rinse.

DW 953, 954, 955, 95FI
Start
Stop
E
Quick wash program
Onepre-wash, short main wash and2rinses.
Basictemperature:55°Cinmainwashand last rinse.
Rinse & Hold program
Onepre-washwithoutheat.
Plate heating
Consistsofadrysequence.
OPTIONS
Delayed start
DW955:Youcanselect1-12h´sdelay.
DW954/95.FI: Just 5h´s delay.
EKO/BIO-function.
Lowersthetemperaturein pre wash and main wash to 50° C, 122°F and
prolongesthe washing time in main washwith15minutes.
Drying heat
Theheating element can be selected ”On”or”Off”duringthe drying period.
Fan drying
A cooling down period of 30 minutes is added before the program ends.
Temperature selection.
DW955: In Intensive, StrongandNormal programs the temperatures 55,65,70,
75°C,canbeselected (70 and 75°C respectively just in last rinse).
Otherprograms:45,55 and 65°C.
DW953/4/95.FI: Intensive wash;Temperature selection between 70and55°C.
Normalwash;between 65 and 55°C
Quickwash;between55and45°C.
START/STOP
DW954/5:Youstarta program by a press onthis button, and stop itby pres
singthesame buttonfor3seconds.
DW953:Theprogramsarestarteddirectlybypressingtheprogrambuttonand
arestoppedby pressing one of the program buttonsfor 3 second
EXTRAFAN COOLING (just DW954)
Thefan cool the dishware for 30minutesafterdrying
Press Sl five times.
Press S5 to get an extra cooling
press S4 to get a normal cooling

DW 953, 954, 955, 95FI
SETTING OF PUMPING-OUTTIME
Thepumping-out time can be changed depending on bad pumping-out
conditions.
Press S3 five times.
Press S3 to get an outlet time of 20 seconds or
press S4 " 25 seconds or
press S5 " 35 seconds or
press S6 " 45 seconds or
press S7 " 85 seconds
PROLONGED START FUNCTION
The start function can be re-programmedsothatthebutton must be pres-
sed in for 3 seconds to start the programs.
Press S4 five times.
Press S5 to get a prolonged start function or
press S4 to get a normal start function.
SETTING OF INLETTIME
Thereisapossibilitytore-programmetheinlettimeonlevelcontrolledand
time controlled inlets.
Press S5 five times.
Press S3 to get a normal inlet time or
press S4 to get a prolonged time of 25% or
press S5 " 50% or
press S6 " 100% or
press S7 " 150% or
press S8 " 200% .
EXTRA RINSE (Not DW 953)==
Anextrarinsecan be added in programs Intensive, Strong, Normal
andLightwash.
Press S2 five times
Press S5 to get an extra rise or
pressS4toget a normal number of rinses.

DW 953, 954, 955, 95FI
FAULT-TRACING PROGRAM
Thefuctions of the elctrical componentscanbetested:
Press S6 five times.
PressS2forinletvalve2.
PressS3forinletvalve1.
Press S4 for combi doser.
PressS5fortheheatingelement
PressS6forthecirculationpump.
PressS7for the outlet pump.
PressS8forfanmotorandvaxmotor.
Stop the fault-tracingprogram bypressing S13on DW954 /955,or one of the
programbuttons for 3 seconds on DW953.
WATER HARDNESS SETTING (just machines with softener).
Press S7 five times within 15 seconds.
Press S2 for a water hardness of 0–9 °dH
" S3 " 10–14 " Normal setting
" S4 " 15–19 "
" S5 " 20–24 "
" S6 " 25–34 "
" S7 " 35–49 "
" S8 " 50–70 "
COOL DOWN (Just DW955 without softener)
A Cool down period after the first pre-wash and main wash can be added on
cold water connected machines < 25°C, 77°F) and high wash temperatures
(< =65°C, 149°F).
Press S9 five times.
Press S5 to get cool-down or
press S4 to get normal temperature.
LINKS ON THE PROCESSOR BOARD (for program variations)
Link 953: DW953 processor board layout
Link 955: DW955, processor board layout.
LinkEurope:Europaprocessorboardlayout.
Link USA: USA processor board layout.
LinkSoft: Machine with softener
Link SSP: Quick wash is replaced by ”Pika Pesu” = a cold program,
15 minutes long.
Link 230V: Machine for 230V (hardware).

DW 953, 954, 955, 95FI
FAULT INDICATIONS
L3 and L7 and display ”F1” (DW955) is blinking: Heating element fault.
L1-L8anddisplay”F2”(DW955)isblinking: Overfill.
L4 and L5 and display ”F3” (DW955) is blinking: Sensor fault.
L6 and L7 and display ”F4” (DW955) is blinking: Water inlet fault.(Just
machines with level sensor).
L1-L4 together with L5-L8: The door is open during machine operation.
CONTROL UNIT
The control unit contains a microprocessor for control of programs,
circulationpump, inletvalvesetc.
CIRCULATION PUMP
Thecirculation pump consistsofan asynchronous motorandpump,
constructedinanintegrated unit.A4 µF capacitor is fitted to ensure
reliable starting of the circulation pump.
OUTLET PUMP
The outlet pump consists of a synchronous motor and pump, constructed
in anintegrated unit.
INLET VALVE
Dependingon model, there are three typesofinletvalves:
1.With safety valve:Twosolenoids independantfromeachotheror valve
seatsareconnectedtoaunit.
2.Single-unit type:Asolenoidandvalve seat.
3.Softenervalve:Two valvesinshunt, one fortheregenerationof the softe
nerand theotherfornormal inlet.
HEATING ELEMENT
Heatingelementswith the following capacities: 1800 W, 2500W and1800
W+ 1200 W alternatively.
THERMISTOR
Thethermistor controls the water temperaturetogivethe required tempera-
ture.The heater will be disconnected if the thermistor is short-circuitedor
loosenedfromthe circuit board. See fault indications. The normal resistance
ofthethermistorisbeetween 25 and 15 Kohm at 20°C, or 30°C alternately.
HIGH TEMPERATURE CUTOUT
Thermostatwith switch-off-functionat88°C, 190°F preventstheheating
elementfrom remaining continously energisedifthecontrol unit or thetimer
shouldfail.

DW 953, 954, 955, 95FI
DOOR SWITCH
Amicroswitch senses that the door has been opened. This interrupts the
programand cutsthepower to all controlcomponents(motor, valves etc.).
LEVEL SWITCH
Thelevel switch provides protectionagainstoverfilling,interrupting the power to
theinlet valveandstarting theoutletpump.
Ifthe water level has not dropped within 30 seconds or ifoverfillhas
occurredtwiceduringthesameprogram,theprogramwillbeterminated
Theoverfill protection operatesduringallprograms, including fault-tracing,and
evenif the microprocessor is faulty.
OVERFILL SWITCH
Afloat influences a microswitchwhichdisconnects the inlet valveandstarts
theoutlet pump. Function: See"Levelswitch"above.
COMBI DISPENSER
The combi dispenser doses both detergent and rinse aid
Inthe doser there is anadjustablevolumechamber for setting of the
desired amount of rinse aid.
Oncertainmodels there is a sensor for rinse aid level mounted on the doser.
MAIN SWITCH
Themain switch is a 2-poleswitch,interruptingboth the phase and neutral
supplies.
ELECTRICAL CORD
Themachines are fitted with 3xl ,0mm2connectioncordsandearthed plugs.
Variations occur for differentmarkets.
ELECTRICAL SUPPLY
Asdelivered , the machines arewired forconnection to asingle-phase, 230V,
10Asupply, with a heater power of1800 W, giving a total power requirement
of 2000 W.
Alternative:single-phase, 230 V, 16A,heater power 3000 W total power
requirement3200W
Altemative: 2-phase, 400 V, 10A, heater power 3000 W total power
requirement3200W.
SOFTENER
Ifsoftener is used, link”Soft”mustbe taken awayfromthecontrol unit. This
meansconnecting of the softener valve. Oncertainmodelssensorfor rinse
aidlevelismountedonthesoftener.Thisindicatesbylackofsalt.

DW 953, 954, 955, 95FI
FAN
Evacuatesthe moist air from the machine during the drying phase of
theprogram.
Thefansystem consistsofafanmotorwhichrunsa two partimpeller.Dryair
issuckedinfromthedoorintooneoftheimpellerhalves.Avaxmotoropens
avalve,and themoistairstreamsintotheotherpartof the impeller. Dry and
moistairaremixed and led into a channel to the lower partofthe door,
whereitisletout.

DW 953, 954, 955, 95FI
WATER SOFTENING
The water softener operates as follows:
During rinse, pre-wash and main wash:
1. Inlet valve 1 opens and admits water.
2. The water flows
•through hose 3 to air-brekdevice, no1
• passes an airgap
•leavesthe air-breakdevicethroughno.3
• passes hose 7 to the resin container of the
softener, no 3.
There the water is softened and the soft water
flows
• out through no. 4
• through hose 8 back to the air-break device no. 4
•entersthemachinethroughno.6.
1 Inlet valve 1
2. Inlet valve 2 (regener ation valve)
3. Hose IV1 - air-break device
4. Hose IV2 - air-break device
5. Air-break device
6. Inlet opening
7. Hose air-break device no. 3- resin
containerno.3
8. Hose air-break device no. 4 – resin
containerno.4
9. Hose air-break device no. 5 - salt
containerno.5
10.Saltcontainer
11.Resin container
Hard water, containing lime,
Ca(HCO3)2flows into the
resin container. The Ca ions
are replaced by Na. Soft
water, containing Na(HCO3)
flows into the machine.
Regeneration during the main wash:
3. When the machine has admitted water, as described above, for the main wash,
inletvalve2opensfor10-60 seconds,dependingonthesetting.Thewaterflows
throughhose4totheair-breakdevice5,onthroughhose9andintosaltcontainerno.5.
Thesalt-saturatedwaterflowsintotheresincontainer,whereitregeneratestheresin,so
thatitcansoftenfurtherwater.
Ca
Na(HCO )
3
Na
Ca(HCO )
32
Resin container
1
3
4
2
5
7
8
6
9
10
11

DW 953, 954, 955, 95FI
THE SALT CONTAINER
Rinses
Rinse1startsbyflushingthewatersoftenersystemfor40-90seconds,
dependingonsetting, atthesametimeasthemachinepumpsout. This
is then followed by rinses as described in 1) and 2) above.
Ifhardwater(i.e.containinglime)isallowedtodryonthedishes,glasses
etc.,insolubledepositsof limewill beleft.
Ca(HCO3)2CaCO3+ CO2+ H2O
Insolublelime
Ifthewaterissoftenedwithsalt,sodiumcarbonateandcalciumchloride
areformed.Thesetwosaltsarewater-soluble,andleavenodeposits.
Ca(HCO3)2 + 2 NaCl = 2NaHCO3+ CaCl2
2NaHCO3Na2CO3+ CO2+H2O
Soluble soda
0,05 - 0,23
litres of water
flow into the
salt container,
where the Ca is
replaced by
Na. CaCl2is
flushed into the
machine.
Ca
2NaCl
Na Cl
Na
CaCl
Na Cl
2