Asko D1976 User manual

Model D1976
(DW 955)
Page
Date
2000-06 1
INDEX
D1976 DISHWASHER
(DW955)
ll PROGRAMS 2
ll ELECTRICAL FUNCTIONS 6
ll PART NUMBER SUFFIX DEFINITIONS 8
ll SPARE PARTS LIST
♦♦ Casing and related parts 10
♦♦ Container and related parts 12
♦♦ Door 14
♦♦ Control Panel 16
♦♦ Dishwashing system 18
♦♦ Interior light 20
ll WIRING DIAGRAM 22
ll TIMER DIAGRAM 23
ll SERVICE INFORMATION
♦♦ Door springs 24
♦♦ Water level 25
♦♦ Door lock 26
♦♦ Control unit failure analysis 27
♦♦ Remaining time indication 28

Model D1976
(DW 955)
Page
Date
2000-06 2
PROGRAMS
PROGRAMS
PROGRAM DEFINITION
Pots and pans/Sani Two prewashes, main wash, three rinses* and drying.
Super Two prewashes, main wash, two rinses* and drying.
Normal Two prewashes, main wash, two rinses* and drying.
Light One prewash, main wash, two rinses, drying.
Quick One short prewash, short main wash, two rinses.
Rinse & hold One rinse without heat at 131°F (55°C). If Heat fan dry is selected, the
heating element will activate. Drying: 158°F (70°C)
Plate warm Activates the heating element.
*The Pots and Pans/Sani, Super and Normal programs can be programmed for an extra rinse (see
page 4). In that case, the temperatures for the next-to-last rinse would be the household water
temperature and the final rinse would be the last rinse temperature indicated in the table on page 3.
OPTIONS
TimeDelay Each press of this touchpad delays the start by one hour, up to 12 hours. The
number of hours is displayed in the LED window. After you select the hours,
press Start. To cancel, press the Delay touchpad until the LED displays
zero then press Start.
Economy When used with low temperature settings, saves energy by extending the wash time.
Heat Dry Activates the fan for an additional 30 minutes after the drying cycle to cool the dishes.
Fan Cool Pressing this touchpad activates the heating element for 12 minutes after the final
rinse. (158° F/70° C)
Temp Select Lets you select the water temperature for the wash programs (except Rinse.) The
indicator light glows when it’s on the High setting and remains off when set on
Low. The LED displays the temperatures in Celsius. Refer to the table on the next
page for the temperature options and conversions to Fahrenheit.
Start/Stop Press this touchpad to Start or Stop the machine. To interrupt a program, hold this
touchpad down for three seconds.

Model D1976
(DW 955)
Page
Date
2000-06 3
PROGRAMS
WASH PROGRAM TEMPERATURES
Wash Temp 1st 2nd Main 1st 2nd Final
Program Options Prewash Prewash Wash Rinse Rinse Rinse
Pots & 131°F 113°F House 131°F House House 131°F
Pans/Sani* (55°C) (45°C) (55°C) (55°C)
149°F 113°F House 149°F House House 149°F
(65°C) (45°C) (65°C) (65°C)
158°F 113°F House 158°F House House 149°F
(70°C) (45°C) (70°C) (65°C)
167°F 113°F House 167°F House House 149°F
(75°C) (45°C) (75°C) (65°C)
Super*131°F 113°F House 131°F House 131°F n/a
(55°C) (45°C) (55°C) (55°C)
149°F 113°F House 149°F House 149°F n/a
(65°C) (45°C) (65°C) (65°C)
158°F 113°F House 158°F House 149°F n/a
(70°C) (45°C) (70°C) (65°C)
167°F 113°F House 167°F House 149°F n/a
(75°C) (45°C) (75°C) (65°C)
Normal* 131°F 86°F House 131°F House 131°F n/a
(55°C) (30°C) (55°C) (55°C)
149°F 86°F House 149°F House 149°F n/a
(65°C) (30°C) (65°C) (65°C)
158°F 86°F House 158°F House 149°F n/a
(70°C) (30°C) (70°C) (65°C)
167°F 86 House 167°F House 149°F n/a
(75°C) (30°C) (75°C) (65°C)
Light 113°F House n/a 113°F House 113°F n/a
(45°C) (45°C) (45°C)
131°F House n/a 131°F House 131°F n/a
(55°C) (55°C) (55°C)
149°F House n/a 149°F House 149°F n/a
(65°C) (65°C) (65°C)
Quick 113°F House n/a 113°F House 113°F n/a
(45°C) (45°C) (45°C)
131°F House n/a 131°F House 131°F n/a
(55°C) (55°C) (55°C)
149°F House n/a 149°F House 149°F n/a
(65°C) (65°C) (65°C)
*The Pots and Pans/Sani, Super and Normal programs can be programmed for an extra rinse (see
page 4). In that case, the temperatures for the next-to-last rinse would be the household water
temperature and the final rinse would be the last rinse temperature indicated above.

Model D1976
(DW 955)
Page
Date
2000-06 4
PROGRAMS
EXTENDING FAN COOLING TIME
To extend the fan cooling time, press S1 five times then press one of the following:
S5 for 30 extra minutes
S4 for normal fan cooling time
SETTING AN EXTRA RINSE
To add an extra rinse to the Pots and Pans, Super, Normal and Light wash programs, press S2 five
times then press one of the following:
S5 for an extra rinse
S4 for the normal number of rinses
SETTING CHILD-SAFE START FUNCTION
The start function can be reprogrammed so that the Start button must be pressed in for 3 seconds to
start the programs. To do this, press S4 five times then press one of the following:
S5 to get a prolonged start function or
S4 to get a normal start function.
SETTING PUMP-OUT TIME
If it's necessary to reprogram the pump-out time, you can do so bypressing S3 five times then pressing
one of the following:
Press: to get an outlet time of:
S3 20 seconds
S4 25 seconds (factory setting)
S5 35 seconds
S6 45 seconds
S7 85 seconds
SETTING INLET TIME
You can reprogram the inlet time on level controlled and time controlled inlets. To do this, press S5 five
times then press one of the following:
Press: to get an inlet time of:
S3 45 seconds (factory setting)
S4 56 seconds
S5 68 seconds
S6 90 seconds
S7 113 seconds
S8 180 seconds
S = Pushbutton switch L = Indicator light

Model D1976
(DW 955)
Page
Date
2000-06 5
FAULT CODES
Blinking lights and an F-code in the LED window indicate a machine fault.
Code Blinking Lights Problem
F1 L3 and L7 Heating element
F2 L1–L8 Overfill
F3 L4 and L5 Thermistor fault (heater control)
F4 L1–L4 Water inlet
FAULT-TRACING PROGRAM
The functions of the electrical components can be tested by pressing S6 five times then pressing one
of the following:
Press to test
S2 inlet valve 2
S3 inlet valve 1
S4 combi-dispenser
S5 heating element
S6 circulation pump
S7 outlet pump
S8 fan motor and wax motor
Stop the fault-tracing program by pressing S13.
LINKS ON THE PROCESSOR BOARD
(for program variations)
These diodes should be cut for proper U.S.iInstallation:
Link 955: DW955, processor board layout
Link USA: USA processor board layout
S = Pushbutton switch L = Indicator light
PROGRAMS

Model D1976
(DW 955)
Page
Date
2000-06 6
CONTROL PANEL (see page 17)
The control panel contains a microprocessor for control of programs, circulation pump, inlet valves, etc.
It also allows for custom settings of programs (see page 3).
CIRCULATION PUMP/MOTOR (see page 19)
The circulation pump/motor consists of a synchronous motor and pump, constructed in an integrated
unit. A 16 µF capacitor is fitted to the circulation motor/pump.
OUTLET PUMP (see page 19)
The outlet pump consists of a synchronous motor and pump, constructed in an integrated unit.
INLET VALVE (see page 19)
A safety-unit type: Two solenoids and valve seats are independently connected to a unit.
HEATING ELEMENT (see page 13)
1400 Watt
THERMISTOR (see page 13)
The thermistor controls the water temperature within +/-1°C (2.5°F) to give the required temperature.
The heater will be disconnected if the thermistor is short-circuited or loosened from the circuit board and
the fault code "F3" displays in the LED window. The normal resistance of the thermistor is between 25
and 15K ohm at 68°F (20°C) or 86°F (30°C) alternately.
OVERHEAT PROTECTION (see page 13)
The thermostat has a switch-off function at 190° F (88°C) that prevents the heating element from staying
on if the control unit or the timer should fail.
DOOR SWITCH (see page 19)
A microswitch senses that the door has been opened. This interrupts the program and cuts the power to
all control components (motor, valves, etc.).
LEVEL SWITCH (PRESSURE SWITCH) (see page 13)
This switch protects against overfilling by interrupting the power to the inlet valve and starting the outlet
pump. If the water level has not dropped within 30 seconds or if overfill has occurred twice during the
same program, the program will be terminated and a fault code displays. The overfill protection operates
during all programs, including fault-tracing, even if the microprocessor is faulty.
OVERFILL SWITCH (see page 13)
A float in the base pan influences a microswitch that disconnects the inlet valve and starts the outlet
pump.
COMBI-DISPENSER (see page 15)
The combi-dispenser dispenses both detergent and rinse aid. The dispenser has an adjustable volume
chamber for setting the desired amount of rinse aid.
TURBO FAN (see page 15)
The turbo fan vacuates the moist air from the machine during the drying phase of the program. The fan
system consists of a fan motor that runs a two-part impeller. Dry, cool air is pulled in from the door into
one of the impeller halves. A wax motor opens a damper and the moist air is pulled into the other part of
the impeller. The dry, cool air and warm, moist air mix and condense in the condensation chamber. The
condensed moisture then drains through the channel to the lower sump area. Dry air is then vented out
through a channel below the outer door.
ELECTRICAL FUNCTIONS

Model D1976
(DW 955)
Page
Date
2000-06 7
Electrical Supply
The machines are wired for connection to a single-phase, 120V, 15A supply, with a heater power of
1400W, giving a total power requirement of 1600W.
VALUES FOR WIRING DIAGRAMS
Resistance values at 68° F (+/-5°F), 20° C (+/-3°C)
(Values within +/- 10% is normal.)
AP Drain pump 120V, 60 Hz, 25.5 ohm
BB Illumination switch
CP Main pump 120 V, 60 Hz, Main = 10.5 ohm, Aux = 14.5 ohm
KD Combi-dispenser 120 V, 0.31 ohm
EL Heating element 120 V, 1400 W, 10 ohm
FFilter 680 K ohm (1-2, 3-4)
IV Inlet valve 120 V, 9.93 K ohm
FL Fan 120 V, 0.25 K ohm
LB Door switch
LU Door
NLevel switch
PControl unit
RRelay 230 V Eberle, 0.59 K ohm
TThermostat 19–25 K ohm
TB Pushbutton switch
TE Temp. thermistor 18–25 K ohm
WAX Wax motor 1.5–3.0 K ohm
VMG Rinse ag sensor
OB Overflow switch
ELECTRICAL FUNCTIONS

Model D1976
(DW 955)
Page
Date
2000-06 8
PART NUMBER SUFFIX DEFINITIONS
The lists below define the meanings of the dashed numbers or letters following a part number:
Colors:
-0 White
-29 Black, bright
-33 Black
-36 Dark grey
-49 Helios grey
-69 black, metallic
-77 grey
-81 metallic
-95 Stainless Steel
Note: Not all colors are available for all parts.
Doors
-M for units with fan
-P for integrated units
-R for decor frames, long devision
-S for decor frames, short devision
-T for decor frames with adjustable lower part

Model D1976
(DW 955)
Page
Date
2000-06 9
Thispageintentionallyblank.

Model D1976
(DW 955)
Date
2000-06 Page
10
CASING AND RELATED PARTS
9
11
1
2
3
4
5
6
7
8
10

Model D1976
(DW 955)
Page
DescriptionFig.PartNo. Notes
Date
2000-06
Qty
11
CASING AND RELATED PARTS
1 1 80 583 53 Soundinsulation
2 1 80 600 41 Soundinsulationprofile
3 1 80 575 26 Guardplate
489 003 52 Screw RTS ST 4.2x13
4 1 80 707 43 Felt, kick plate
5 1 80 597 58- Kick plate -0, -29, -81
289 009 44- Screw, kick plate -0, -29, -81
6 1 80 706 15 Sealing strip
7 1 80 571 00- Lower cover -S-0, -S-29, -95
289 003 52 Screw RTS ST 4.2x13
480 097 69- Plug for decorframe -0, -33
8 1 80 706 12 Soundinsulation
9 1 80 584 86 Drip protection for guard plate
10 280 575 49 Bracket, kick plate
11 280 575 50 Spring, kick plate
289 003 27 Screw RTS ST 4.2x13 FZB T20

Model D1976
(DW 955)
Date
2000-06 Page
12
CONTAINER AND RELATED PARTS
1
2
3
5
6
7
89
10
4
11
12
14
13
15
16
13
17
18
19
20
21
22
23
24
25
26
28
29
30
31
27

Model D1976
(DW 955)
Page
DescriptionFig.PartNo. Notes
Date
2000-06
Qty
13
CONTAINER AND RELATED PARTS
2 1 80 600 65 Sealing strip, top casing, left
180 600 65 Sealing strip, top casing, right
3 1 80 574 89 Tub seal
4 1 88 010 98 Lock catch compl.
5 2 80 579 78- Ball catch -77
6 2 80 586 38- Ballbearing holder, guide rail -77
7 8 80 579 77 Ballbearings
8 2 80 579 79- Basket stop -77
9 2 80 570 52 Guiderail
10 180 600 33 Soundinsulation
11 489 011 10 Screw + O-ring A2-M6x12 T30
12 180 570 77 Heating element 1400 W 120 V
180 602 58 Cableholder Forheating
280 023 70 Protection collar, heating
13 280 583 52 Soundinsulation
14 180 584 95 Cableholder,door
15 180 701 42 Cableholder
16 180 025 79 Thermostat Overheat protection
17 180 597 61- Strip side, left -0, -29, -95
180 597 62- Strip side, right -0, -29, -95
489 006 46 Screw A4 RTS 4.2x13 T20
289 003 52 Screw RTS ST 4.2x13
18 280 706 14 Sealing strip
19 180 575 23 Bottom outer (base pan)
289 011 04 Screw, casing - bottom A2-MRT-TT 4x8 T20
20 280 584 91- Doorspringscompl. -77
21 180 704 95 Mountinletvalve
289 003 27 Screw RTS ST 4.2 x 13 FZB T20
22 180 602 55 Mount, electrical connection
23 180 599 91 Cableholder
24 180 069 48 Grommet
25 180 585 58 RFIfilter
26 180 502 51 Terminal block 3-pole
189 003 57 Screw, terminal block RTS ST 4.2x25 FZB T20
189 021 31 Screw, grounding terminal block MRT-TT 4x6 FZB T20
189 014 13 Washer AZ4.3FZB
27 280 600 38 Soundinsulation,outerbottom
28 480 721 19 Reinforcement washer
29 480 570 62 Levelingleg M10x100, 8.8 FZB
30 489 011 56 Nut M6M10 BH8 FZB
31 280 519 57 Slide foot, rear only

Model D1976
(DW 955)
Date
2000-06 Page
14
DOOR
1
2
3
4
5
6
7
8
9
15
13
11
12
10
17
16
14

Model D1976
(DW 955)
Page
DescriptionFig.PartNo. Notes
Date
2000-06
Qty
15
DOOR
1 1 80 527 78 Wax motor
2 1 80 585 01 O-ring
3 1 80 600 21 Fan,compl.
4 1 80 579 63- Air channel, turbo dry -S
5 1 80 727 29- Nozzle, air channel -0, -33
6 1 88 011 18 Innerdoor compl.
489 021 20 Screw A2-MKFT5x10-TTFZB
7 1 80 579 64 Lock ring, fan casing
8 1 80 584 84 Cover plate, fan
289 020 85 Screw, fan cover plate A2-PTK 40x10 WN1452
9 1 80 706 80- Combi-dispenser -77
689 020 87 Screw PTK 40x14 WN1452 FZB
180 719 17 Rinse aid cap
180 719 18 Combi-dispenserlid Incl. seal and spring
10 180 575 25 Hinge,left
180 575 24 Hinge,right
280 575 30 Hinge screw
233500262 Nut,hingebearing,locking 4BH8FZB
11 280 579 48 Slide washer, hinge bearing
12 180 715 87 Holder, cable harness
189 021 31 Screw, cable harness holder MRT-TT 4x6 FZB T20
13 180 584 87 Stay, air channel
14 180 579 85 Brace stand
289 006 46 Screw, lower stay A4 RTS 4.2x13 T20
15 180 602 54 Door seal, lower L=555 mm
16 180 702 94 Soundinsulation
17 180 579 86- Door outer part -S-0, -S-29, -95
689 006 46 Screw A4 RTS 4.2x13 T20
289 003 27 Screw RTS ST 4.2x13 FZB T20
280 561 17- Screw -29
680 097 69- Plug for decor frame -33

Model D1976
(DW 955)
Date
2000-06 Page
16
CONTROL PANEL
1
2
345
6
7
8
9
10
11
12
13
14
15
16
17
18
14

Model D1976
(DW 955)
Page
DescriptionFig.PartNo. Notes
Date
2000-06
Qty
17
CONTROL PANEL
1 1 80 575 41- Handle -0, -33, -81
2 1 80 575 45 Safety catch
3 1 80 575 46 Spring, safety catch
4 1 80 575 44 Control arm, safety catch
5 1 80 575 39 Holder, handle assembly
289 020 85 Screw A2-PTK 40x10 WN1452
289 020 87 Screw PTK 40x14 WN1452 FZB
6 1 80 710 98 Cover, microswitch
7 1 80 554 73 Microswitch
8 1 80 575 42 Controlpin, microswitch
9 1 80 070 78 Spring,handle
12 180 575 37- Frontpanel -0, -69, -81
13 180 575 38- Backing for decor plate -0, -69, -81
189 020 92 Screw PTK 40x25 WN1452 FZB
14 180 734 09- Decor insert -0, -33, -81
15 180 600 76 Contact cover
16 188 012 01 Controlunit
289 020 53 Screw PTK 40x45/15 FZB T20
17 180 597 67 Thermistor
18 180 734 57 Cable harness complete
180 730 96 Use and Care Guide

Model D1976
(DW 955)
Date
2000-06 Page
18
DISHWASHING SYSTEM
1
2
3
4
5
6
78
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36 37
38
53
37
39
40
41
42
43
45
46
47
49
50
51
52
44
36
24
25
26
48

Model D1976
(DW 955)
Page
DescriptionFig.PartNo. Notes
Date
2000-06
Qty
19
DISHWASHING SYSTEM
1 1 80 713 37- Cup shelf, wine glasses -36
2 1 80 011 99- Upper basket, w/wheels -36, with cup shelf
180 727 64- Glass support, adjustabe -36
3 1 9- 570 58- Knife tray , upper cutlery basket -36
4 1 80 533 76- Upper cutlery basket -36
5 1 80 575 05- Knife stand, upper cutlery basket -77
6 1 80 725 50- Cupshelf,divided -36
7 1 80 575 02 Glide mount 1 for upper cutlery basket
8 1 80 584 53 Glide mount 2 for upper cutlery basket
9 1 80 575 03- Grommet, spray pipe, upper -77
10 180 575 00 Upper spray pipe
11 180 575 04- Grommet, spray pipe, lower -77
12 180 575 36- Lock ring, air break -77
13 180 585 04 O-ring, inlet air break
14 180 575 14 Air break
15 180 597 40 Strainer, upper part
16 480 584 98- Basket wheel, upper -77
18 188 010 89- Cutlery basket -77
19 188 012 00- Lower basket -36
20 880 095 16- Basket wheel, lower -77
21 180 584 93- Lower basket insert -36
22 180 703 04 Outlet hose
23 180 726 95 Spray arm, upper
24 289 012 62 Nut, spray arm bearing
25 280 520 95 Washer, spray arm bearing
26 280 570 70- Spray arm bearing -77
27 180 570 68- Spray pipe bearing, upper -77
28 180 570 63 Spray pipe
29 280 521 89 Hoseclip, inlet valve 17.0-706
30 180 585 02 Rubberhose, inlet valve
31 180 721 23 Inletvalve
289 020 87 Screw PTK 40x14 WN1452 FZB
32 180 726 92 Spray arm lower
33 180 570 67- Spray pipe bearing, lower -77
34 189 017 55 O-ring, lower spray pipe bearing
35 180 570 69 Nut, spray pipe bearing
36 280 574 84 Hose,circulationpump
37 480 520 97 Hose clip, circ. pump hose 44.0-708
38 180 550 95 Rubber buffer, circ. pump
39 180 710 24 Level switch (pressure)
40 180 570 53 Float, base pan
41 180 600 68 Microswitch float
42 180 585 00 Rubber hose 5x8x340
43 188 011 23- Base pan, sump -77
44 180 585 03 O-ring, base pan, sump 109.5x3
45 180 025 84 O-ring,outletpump 49.5x3
46 180 574 87- Cover plate -33
47 180 720 32 Outletpump
48 180 522 39 Hoseclip 31.6-708
49 180 574 88 Lock ring, bottom well, sump
50 180 584 54 Cover plate
51 180 579 72- Filter basket, coarse -77
52 180 574 86- Insert, filter basket -77
53 180 712 50 Circulationpump

Model D1976
(DW 955)
Date
2000-06 Page
20
INTERIOR LIGHT
1
2
3
4
5
6
7
8
9
10