Fisher & Paykel DD603HM, DD603H, DS603I, DS603IH, DS603M User Manual 2

MODELS

DD603

DD603I

DS603

DS603 I
DD603M
DS603M

DD603H

DD603IH

DS603H

DS603IH
DD603HM
DD603HM

599082

Manual 599082 March 2004

Changes:

Aug 03: Addition of info on Dry Enhancement Mode – refer section 4.1.8, page 20, plus many minor alterations
throughout manual.
Mar 04: Dimensions and Specifications updated p 9, 10.

Fisher & Paykel Appliances Inc
27 Hubble, Irvine, California,
CA92618,
USA
Ph: 949 790 8900
Fax: [phone]

Fisher & Paykel Customer Services
PO Box 798
19 Enterprise St
Cleveland, Queensland 4163
AUSTRALIA
Tel: [phone]
Fax: [phone]
Email: [e-mail]
A.C.N 003 335 171

Fisher & Paykel Appliances
150 Ubi Avenue 4
Sunlight Building #02-00
SINGAPORE 408825
Tel: [phone]
Fax: [phone]

COPYRIGHT Ó FISHER & PAYKEL LTD 2004

Fisher & Paykel Appliances Ltd
Whiteware Spare Parts
PO Box 58-732, Greenmount
80 Springs Rd, East Tamaki
NEW ZEALAND
Tel: [phone]
Fax: [phone]
Email: [e-mail]

Fisher & Paykel Appliances
Helpline
209 Purley Way, Croydon
Surrey, CT9 4RY
GREAT BRITAIN
Tel: [phone]

Fisher & Paykel Appliances Ltd
International Division
PO Box 58-732, Greenmount
80 Springs Rd, East Tamaki
NEW ZEALAND
Tel: [phone]
Fax: [phone]
Email: [e-mail]

Fisher & Paykel Helpline
C/o C&F Quadrant
Unit L
40 Cherry Orchard Industrial Estate,
Dublin 10
IRELAND
Tel: [phone]
Fax: [phone]

C O N T E N T S

1.0 SERVICE REQUIREMENTS ........................................................................................................... 7

1.1 HEALTH & SAFETY ........................................................................................................................7

1.1.1 E

1.1.2 E

1.1.3 G

1.1.4 I

1.1.5 W

1.1.6 I

1.1.7 S

1.1.8 S

1.1.9 D

1.2 S

1.2.1 S

1.2.2 F

2.0 DIMENSIONS & SPECIFICATIONS ................................................................................................ 9

LECTRICAL SAFETY...............................................................................................................7

LECTROSTATIC DISCHARGE................................................................................................... 7

OOD WORKING PRACTICES................................................................................................... 7

SOLATE WATER SUPPLY.........................................................................................................7

ATER LEAK CHECK...............................................................................................................7

NSULATION TEST ................................................................................................................... 7

OLVENT AND EXCESSIVE HEAT DAMAGE ................................................................................8

HEET METAL EDGES .............................................................................................................8

IAGNOSTICS .........................................................................................................................8

PECIALISED TOOLS...................................................................................................................... 8

TATIC STRAP:.......................................................................................................................8

ISHER & PAYKEL SMART TOOL ..............................................................................................8

2.1 DIMENSIONS..................................................................................................................................9

2.2 S

2.2.1 E

2.2.2 C

PECIFICATIONS ............................................................................................................................ 9

LECTRICAL ........................................................................................................................... 9

OMPONENTS ........................................................................................................................ 9

3.0 TECHNICAL OVERVIEW ............................................................................................................. 11

3.1 CHASSIS ..................................................................................................................................... 11

3.2 D

3.3 E

3.3.1 T

3.3.2 T

3.4 M

3.4.1 R

3.4.2 S

3.5 W

3.6 L

3.6.1 L

3.6.2 W

3.6.3 D

3.7 T

3.8 F

3.8.1 W

3.8.2 D

3.8.3 A

3.9 H

3.9.1 T

3.9.2 H

3.9.3 M

3.9.4 O

RAWER FRONTS ........................................................................................................................11

LECTRONICS..............................................................................................................................11

UB HOME SENSOR ..............................................................................................................11

OUCH SWITCHES ................................................................................................................ 12

OTOR .......................................................................................................................................12

OTOR.................................................................................................................................12

PRAY ARM..........................................................................................................................12

IRING COVER............................................................................................................................ 12

ID SYSTEM.................................................................................................................................12

ID OPERATION ....................................................................................................................12

HEN ACTIVATED................................................................................................................. 12

URING A POWER FAILURE ...................................................................................................12

UB.............................................................................................................................................12

ILLING ....................................................................................................................................... 13

ATER INLET ....................................................................................................................... 13

ISPENSING DETERGENT AND RINSE-AID...............................................................................13

MOUNT OF WATER ..............................................................................................................13

EATING .....................................................................................................................................13

HE ELEMENT.......................................................................................................................13

EATING THE WATER............................................................................................................ 13

AINTAINING THE TEMPERATURE ..........................................................................................13

VERHEAT PROTECTION .......................................................................................................14

- 4 -

3.10 LOCKRING NUT.......................................................................................................................... 14

3.11 D

3.12 F

3.12.1 T

3.12.2 R

3.13 D

3.14 W

RAIN CYCLE ............................................................................................................................14

ILTER PLATE ...........................................................................................................................14

HE FILTER SYSTEM ...........................................................................................................14

EMOVING AND CLEANING THE FILTER PLATE......................................................................14

RYING CYCLE..........................................................................................................................14

ATER SOFTENER (WHERE FITTED) ...........................................................................................15

4.0 OPTION ADJUSTMENT MODE .................................................................................................... 16

4.1 HOW TO CHANGE SETUP OPTIONS ...............................................................................................16

4.1.1 R

INSE AID / WATER SUPPLY HARDNESS / AUTO POWER / END OF CYCLE BEEPS / CLOSED

DRAWER OPTION / CLEAN/DIRTY DISH SYMBOL /DRY ENHANCEMENT OPTION ............................................16

4.1.2 R

4.1.3 W

4.1.4 A

4.1.5 E

4.1.6 C

4.1.7 C

4.1.8 D

4.1.9 O

INSE AID SETUP (RA).......................................................................................................... 16

ATER SUPPLY HARDNESS SETUP (HD) ................................................................................ 16

UTO POWER OPTION (AP)...................................................................................................17

ND OF CYCLE BEEPS (EC) ..................................................................................................17

LOSED DRAWER OPTION (LD) .............................................................................................17

LEAN/DIRTY DISH SYMBOL (DS)...........................................................................................17

RY ENHANCEMENT OPTION (LH) ........................................................................................17

PTION ADJUSTMENT QUICK REFERENCE CHARTS ...............................................................18

5.0 DIAGNOSTICS .............................................................................................................................. 20

5.1 DISHDRAWER DIAGNOSTICS ........................................................................................................20

5.1.1 D

5.1.2 O

5.1.3 C

5.1.4 H

5.1.5 F

5.1.6 C

5.1.7 T

5.1.8 S

ISPLAY / DOWNLOAD MODE ................................................................................................20

PTICAL LED DOWNLOAD / FAULT DISPLAY ..........................................................................20

LEARING FAULT LOGS......................................................................................................... 20

ARDWARE OUTPUT DIAGNOSTIC TEST MODE....................................................................... 20

AST TEST CYCLE ................................................................................................................21

ONTINUOUS CYCLE TEST MODE .......................................................................................... 21

EMPERATURE & VOLTAGE DISPLAY MODE ...........................................................................22

HOW OFF / SHOWROOM WASH MODE .................................................................................22

6.0 DIAGNOSTICS QUICK REFERENCE CHARTS ........................................................................... 24

6.1 FAULT DISPLAY/DOWNLOAD MODE:- ...........................................................................................24

6.2 H

6.3 F

6.4 C

6.5 T

ARDWARE OUTPUT TEST MODE:-...............................................................................................24

AST TEST CYCLE:-.....................................................................................................................25

ONTINUOUS CYCLE:- .................................................................................................................25

EMPERATURE & VOLTAGE DISPLAY MODE:-............................................................................... 25

7.0 FAULT CODES ............................................................................................................................. 26

7.1 FAULT CODE DESCRIPTION CHART ..............................................................................................27

7.2 F

7.3 P

7.4 P

AULT CODE PROBLEM SOLVING CHARTS ...................................................................................28

OOR DRY PERFORMANCE ..........................................................................................................32

OOR WASH PERFORMANCE .......................................................................................................32

8.0 WIRING DIAGRAM ....................................................................................................................... 35

- 5 -

9.0 SERVICE PROCEDURES ............................................................................................................. 36

9.1 DRAWER FRONT REMOVAL ..........................................................................................................36

9.2 T

9.3 D

9.4 D

9.5 D

9.6 E

9.7 F

9.8 R

9.9 W

9.10 T

9.11 R

9.12 L

9.13 L

9.14 Y

9.15 L

9.16 S

9.17 C

9.18 W

9.19 F

9.21 T

9.22 L

9.23 F

9.24 W

UB REMOVAL.............................................................................................................................36

RAWER AND LCD DISPLAY REMOVAL ........................................................................................37

RYING FAN REMOVAL ................................................................................................................ 37

ETERGENT DISPENSER ..............................................................................................................38

LECTRONIC CONTROLLER..........................................................................................................38

ILTER PLATE REMOVAL .............................................................................................................39

OTOR ASSEMBLY REMOVAL ......................................................................................................39

IRING COVER REMOVAL............................................................................................................39

UB DISCONNECTION.................................................................................................................40

OTOR SENSOR REMOVAL ........................................................................................................40

OCKING RING, ELEMENT PLATE AND MOTOR ASSEMBLY REMOVAL ..........................................41

ID REMOVAL............................................................................................................................42

OKE REMOVAL ........................................................................................................................42

ID ACTUATOR REMOVAL ..........................................................................................................43

LIDE RAIL REPLACEMENT ........................................................................................................44

HASSIS CIRCUIT BOARD / FLOOD SENSOR REMOVAL ............................................................... 44

ATER VALVE REMOVAL........................................................................................................... 45

ILL HOSE, DRAIN HOSE, WIRING HARNESS REPLACEMENT.......................................................45

OE KICK REMOVAL ..................................................................................................................46

OWER TUB COWLING...............................................................................................................46

RONT TRIM REPLACEMENT....................................................................................................... 47

ATER SOFTENER ....................................................................................................................47

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March 2004 Manual 599082

1.0 SERVICE REQUIREMENTS

1.1 Health & Safety

Note: When servicing the DishDrawer, Health and Safety issues must be considered at all

times. Specific safety issues are listed below with their appropriate icon. These are illustrated
throughout the service information to remind service people of the Health and Safety issues.

1.1.1 Electrical Safety

Ensure the mains power has been disconnected before servicing the DishDrawer. If the mains
supply is required to be on to service the DishDrawer, make sure it is turned off when removing
any electrical component or connection to avoid electrical shock.

1.1.2 Electrostatic Discharge

An anti-static strap is to be used as electrical static discharge (ESD) protection when servicing
electronic components.

1.1.3 Good Working Practices

Ensure the work area is in a tidy and orderly condition at all times so as not to cause a hazard
while service work is being completed. Always clean and tidy the DishDrawer and work area after
service is completed.

1.1.4 Isolate Water Supply

Turn off the water connection tap before servicing.

1.1.5 Water Leak Check

Check for water leaks as part of the testing after the service has been completed.

1.1.6 Insulation Test

Megger test to check insulation.

Warning: Short together the phase and neutral pins on the plug so as not to damage any
electronic circuitry.

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March 2004 Manual 599082

1.1.7 Solvent and Excessive Heat Damage

Plastic surfaces can be damaged by solvents and excessive heat.

1.1.8 Sheet Metal Edges

When working around cut sheet metal edges use appropriate gloves or protection to eliminate
the chance of receiving a laceration.

1.1.9 Diagnostics

While in diagnostics some safety devices are bypassed.
Ensure you do not run components unattended. They may overheat, flood, burnout or cause
water damage.

1.2 Specialised Tools

For servicing this product Specialised tools are required.

1.2.1 Static Strap:

To be used as ESD protection when replacing or handling electronic components.

1.2.2 Fisher & Paykel Smart Tool

Handheld palm computer supplied in protective case with F&P diagnostics software and service information
loaded:
P/N 813141 (includes light pen P/N 425930).

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March 2004 Manual 599082

2.0 DIMENSIONS & SPECIFICATIONS

2.1 Dimensions

Product Size

(mm)

Height (double) 819.5-879.5 32
Height (single) 409mm 16
Width 595mm 23
Depth 570mm 22
Drawer Open (inc cab) 1080mm 42

2.2 Specifications

2.2.1 Electrical

Market Voltage Frequency Current double/single

NZ/AUS/UK/EU 230-240 V AC 50 Hz 10 A / 5 A max
USA 110-120 V AC 60 Hz 12.5 A / 6.5 A max
JAP 90-110 V AC 50/60 Hz 11.6 A / 5.8 A max
KOREA 220 - 240 60 HZ - / 4.5 A max.

Product Size

(inches)

1/4

inch – 34

3/32

inch 412mm 16

7/16

inch 600mm 23

7/16

inch 580mm 22

1/2

inch

5/8

inch 822.5-882.5mm 32

Minimum Cavity

Size

Minimum

Cavity Size

3/8

inch

7/32

inch

5/8

inch

7/8

inch

2.2.2 Components

Component Part Number Specifications

Water Inlet Valve Ph3.5

Ph3.5
Ph3
Ph3

Dispenser

P/N 526850 Double 2.5litre
P/N 526851 Single 2.5 litre
P/N 525113 Double 5 litre
P/N 525842 Single 5 litre

24V DC
70+/- 5 Ohms per coil

2.5Lt/min (0.65 USgal/min)
5 litre/min (1.3 US gal/min)

P/N 526860 24V DC per coil

70+/- 5 Ohms per coil
Rinse Aid capacity
Mains Filter Board

P/N 525958P

50mls (approx. 25 washes)

240V AC
(NZ/AUS/UK/EU/KR)
Mains Filter Board (USA/JAP)
Motor
Drain Direction
Wash Direction

P/N 525959P

5 litres / min.

120V AC

80V DC 3 Phase

4200 RPM

2600 RPM
Stator P/N 526530 8.0 +/- 5 Ohms (per winding), 16

ohms phase to phase from controller

connector

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March 2004 Manual 599082

Component Part Number Specifications

Heater Plate (NZ/AUS/UK/EU/KR)
Heater Track
Power Supply Resistor

Heater Plate (USA)
Heater Track
Power Supply Resistor
Heater Plate (JAP)
Heater Track
Power Supply Resistor
Temperature Sensor On Heater Plate 962 Ohms @ 200C (680F)

Fuseable Link On Heater plate 268 – 302oC (514 – 576oF)
Inlet Hose (NZ/AU/ /KR)
Inlet Hose (WP/EU/DK/GB)
Inlet Hose (USA)
Inlet Hose (JAP)
Drain Hose
Drain Hose (Lower)
Drain Hose (Upper)

Drying Fan P/N 526752 3.4K Ohms
Diverter Valve Softener Assy P/N 526416 24V DC Coil

Brine Pump Assy P/N 526418 24V DC Coil

Water Softener 500 grams Salt Capacity

Lid Actuator
Top left
Top right
Bottom left
Bottom right
Hall Sensor P/N 526340 4.13, and 3.43 M ohms

P/N 527701 240V AC

60 Ohms +/- 3 Ohms

125 Ohms +/- 5 Ohms

P/N 527702 120V AC

26 Ohms +/- 2.5 Ohms

30 Ohms +/- 5 Ohms

P/N 527703 110V AC

20 Ohms +/- 1.5 Ohms

20 Ohms +/- 2 Ohms

1000 Ohms @ 300C (860F)

1202Ohms @ 600C (1400F)

P/N 521349
P/N 527021
P/N 525970
P/N 526809

P/N 525966
P/N 525967

P/N 526275
P/N 526371
P/N 526469
P/N 526470

1.7m (66 inches)

1000Kpa / 145 P.S.I.

2.0m (78 inches) from rear of

cabinet

2.5m (98 inches) bottom tub

2.9m (114 inches) top tub

70 +/- 5 Ohms Coil

70 +/- 5 Ohms Coil

approx 14 regenerations

290+/- 10ml Resin

24 V DC

measured +ve in centre, -ve to

outside

- 10 -

March 2004 Manual 599082

3.0 TECHNICAL OVERVIEW

3.1 Chassis

The DishDrawer chassis is one complete assembly composed of 5 steel metal components locked together by a
proprietry riveting process. The chassis exterior is made of a lacquered electrogalvanised material called
Galvoclean.

Unlike most other dishwashers, the chassis assembly is a load carrying structure designed to impart stiffness to the
product and to ensure deflection is minimised.

The feet of the Double cabinet are assembled into the chassis by means of four steel inserts which are clinched in
place to form a permanent threaded connection.

The tub extends 520mm (2015/32”) out of the cabinet by travelling along two rigidly attached slides on either side of
the tub.

3.2 Drawer Fronts

Prefinished drawer fronts are formed from a painted, brushed or Iridium finish stainless steel blank. The drawer
fronts are attached to the tub by means of formed hooks and two pins which are inserted through either side of the
tub.

On the integrated model, the front panel supplied on each drawer is the mounting panel for the joinery finished
drawer front. The joinery finished drawer front is supplied by the customer.

3.3 Electronics

In the DD603/ DS603 (Phase 3) electronic controller the functions of controlling the motor as well as controlling the
user interface console have been combined into a single 16-bit Micro Controller on the main printed circuit board.

This Micro controller also controls a transformerless 85w switchmode power supply. This power supply utilises a
large dropping resistor on the heater plate in conjunction with phase control of the mains voltage in order to produce
a variable voltage rail. From this the controller can supply voltages from 5V to 85V to the various components in the
DishDrawer.

NOTE:- With power supplies of this nature all components regardless of supply voltage should be treated as live to
earth. i.e = supply voltage.

The user interface comprises a printed circuit board for front controls and a touch switch panel for internal controls.

The electronics can connect to a computer service tool via an optical light pen for fault finding and product
information.

The element is switched by one single pole relay. Overheat protection is effected by a short length of solder in series
with the dropper resistor track on the heater plate. In an overheat situation this solder melts causing the power
supply to go open circuit.

3.3.1 Tub Home Sensor

A tub home sensor is used to determine when the tub is closed and it is safe to start a cycle. The tub home sensor
consists of an inferred LED (sender) and an inferred transistor (receiver) mounted on the circuit board in the
controller. Inferred light is transmitted from the LED through an optical light pipe to the right hand side of the tub. The
inferred receiving transistor also has an optical light pipe leading from it out to the side of the tub. When the tub is
closed the two light pipes are optically connected via a prism mounted in the trim on the side of the chassis.

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March 2004 Manual 599082

3.3.2 Touch Switches

Two touch switches are used on the secondary control panel one to select the required wash cycle and one to turn
the Eco option on or off. They are capacitive touch switches and are supplied with an analogue signal from the
controller that will change in the presence of an earthed mass (i.e. customer’s finger).

3.4 Motor

The motor is a fully electronically controlled 80V, 60w, 3 phase, 6 pole brushless DC motor, running on wash at
between 2300-2850rpm depending on the cycle selected and at approximately 4200 rpm on Drain.

3.4.1 Rotor

The rotor is a four pole permanent magnet rotor with a graphite bearing at each end of the vertical shaft. At the
lower end of the rotor shaft is the drain impellor and at the upper end is the wash impellor.

3.4.2 Spray Arm

The spray arm is shaped for most efficient waterflow. The holes are positioned for best penetration into the wash
load, with the water jets angled to ensure the spray arm rotates at the most efficient speed. There is a flap valve
moulded into the top of the spray arm. This part lets air through the spray arm when the DishDrawer is filling with
water. The DishDrawer fill levels are more consistent with the flap valve system.

3.5 Wiring Cover

The wiring cover protects the customer from all electrical components in the motor area underneath the tub. All
electrical components regardless of voltage should be treated as live with respect to earth. It also serves to protect
the motor assembly, drain and fill hoses from damage when opening and closing drawers. The wiring cover acts as
a cosmetic part of the product.

3.6 Lid System

3.6.1 Lid Operation

The lid is a single piece of polymer plastic with a static seal co-injection moulded into it. Each side of the lid is clipped
into a yoke which is in turn connected to a worm drive lid actuator assembly containing a small brushed DC 24V
motor.

3.6.2 When Activated

At the beginning of each wash cycle, both motors are powered for approximately 10 seconds, which pulls the lid
down onto the tub in approx 5 seconds. The lid remains down for the duration of the cycle and is only lifted when the
DishDrawer beeps to signal the end of the cycle or if the customer pauses it to gain access to the tub.

3.6.3 During a Power Failure

If power to the DishDrawer fails with the lid down you can still force the tub open manually if access is required. It is
very difficult however to close the tub again without lifting the lid. The lid can be wound up manually with the tub fully
removed. Failure to raise the lid before closing the Drawer could result in the lid seal being damaged.

3.7 Tub

The tub is the main cavity where all the wash activity occurs. The tub is a polymer plastic receptacle which has a
wash pump and spray arm at the base. The tub also has guide vanes around its walls which direct falling water from
the wash cycle in a clockwise direction around the filter plate. This clears the filter plate of food particles into the
sump where they can be trapped or pumped out during the drain cycle.

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March 2004 Manual 599082

3.8 Filling

3.8.1 Water Inlet

The tub of the DishDrawer fills by a single water inlet hose, hot water connection for USA and Japanese products
and cold water connection recommended for the Australasian/UK/ Europe products. From the connection to the
water supply in the kitchen, the inlet hose enters the cabinet of the dishwasher at the base, onto a dual water valve.
Each tub is supplied water independently via one of the dual valve coils and a fill hose that runs through a
customised link assembly at the back of each tub and travels along the base of the tub under the wiring cover to the
front. At the front of the tub, the fill hose connects to the detergent dispenser which allows water to enter the tub,
firstly through the pre rinse section of the dispenser for the pre rinse cycle and secondly through the main wash
section for all other cycles.
In a product fitted with a water softener, water is directed through the softener before entering the dispenser.

3.8.2 Dispensing Detergent and Rinse-aid

The dispenser is mounted in the front wall of the wash tub.

The detergent dispenser consists of two detergent chambers, one for pre wash and the other for the main wash.

The detergent dispenser door is opened manually for detergent loading and then manually closed ready for the
detergent to be transported to the wash tub by the inlet water. To enable each detergent chamber to be dispensed
separately, an inlet water diverter valve controlled by the electronics is required.

Additionally a positive displacement pump unit and storage tank are incorporated within the dispenser to supply rinse
aid. The rinse aid dispensed volume can be adjusted by the customer in option adjustment mode. A glowing red
light on the tank filler cap indicates an empty rinse aid tank.

3.8.3 Amount of Water

The tub fills with approximately 2.5 litres / 0.8 US gallons of water, approximately level with the base of the spray
arm. Once this level is reached, the wash pump (which has sensed the fill via the electronics) becomes primed and
pumps the water through the spray arm which will then rotate. The load on the wash pump is constantly monitored
throughout the wash cycle and the water level adjusted if necessary.

3.9 Heating

3.9.1 The Element

The heater plate is an element consisting of a porcelain enamelled steel plate with a thick film resistive circuit printed
onto the dry side. As well as the heating circuit a large dropping resistor is also printed onto the heater plate which
forms part of the controllers power supply. The element is clamped in place by a lockring nut and supports the motor
at the base of the tub.

3.9.2 Heating the Water

The heater plate lies beneath the filter plate. A flow through water heating system is created during the wash cycle
by allowing water to flow through the filter plate, over the surface of the element and into the wash pump.

3.9.3 Maintaining the Temperature

Attached to the element is a sub printed circuit board with a temperature sensitive thermistor. This connects by
means of a RAST 2.5 connector system to the wiring harness of the element. Sensor components are
unserviceable and if they fail a new heater plate is required.

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March 2004 Manual 599082

3.9.4 Overheat Protection

The heater plate is only activated during the wash cycles. It is not used for drying. The temperature is maintained
by the thermistor. If a failure occurs with the electronic control of the heater plate, overheat protection is effected by
a thermal fuse on the heater plate itself.

The thermal fuse consists of a short length of solder in series with the dropper resistor track which will melt at a
relatively low temperature, 268 – 302oC (514 – 576oF) causing the controllers power supply to go open circuit
disconnecting power to the element.

3.10 Lockring Nut

The lockring nut holds the heater plate into the base of the tub and motor housing assembly to form a watertight
seal. It does this by compressing two large ‘O’ rings between the heater plate and tub and between the heater plate
and the motor assembly.

It has clips which hold the drain hose, fill hoses and the wiring loom in place.

Another function of the lockring nut is to support the wiring cover with three clips.

3.11 Drain Cycle

The drain pump is a self priming centrifugal pump which only pumps when the motor is rotating in the drain direction
(anti-clockwise). It has a five bladed impellor pushed into a spline on the end of the rotor shaft.
The drain pump housing, which incorporates an inlet and outlet pipe, is welded to the motor housing, hence
captivating the motor.
The inlet pipe plugs straight into the sump and is sealed there by a small ‘O’ ring.
The outlet pipe has a non return flap valve to prevent soiled water returning to the tub.
The drain hose is an extruded blow mould hose which is routed over the link assembly and exits out of the base of
the product and is connected to a domestic drain.
The drain speed during the wash program is approx. 4200 rpm. In hardware output diagnostics test mode it is
approx. 5000 rpm. This can account for draining OK in diagnostics but not during normal operation.

3.12 Filter Plate

The filter plate is a stainless steel disk which lies below the dish rack and spray arm and completely encompasses
the base of the tub.

3.12.1 The Filter System

The tub is designed with vanes which swirl the water around and over the filter plate. At the front of the tub, located
as part of the filter plate, is the drain filter. Large soils collect in the drain filter and only smaller soils flow through its
micro mesh filter, eliminating re-depositing of soil during the wash. The drain filter should be regularly checked and
cleaned.

3.12.2 Removing and Cleaning the Filter Plate

The drain filter can be emptied with the dish rack in place by removing the cutlery basket and opening the plastic
section of the dish rack. The filter plate is removable for cleaning by removing the dish rack and spray arm and
unlocking the lockring nut anti-clockwise.

3.13 Drying Cycle

Immediately after water from the final hot rinse has been drained from the tub, the drying system begins operation.

The drying fan draws air through from the vent in the rear of the tub, where it absorbs water from the dish load. The
moisture laden air is then mixed with a larger quantity of ambient air (from the kitchen), to minimise the amount of
vapour visible when exiting from bottom of the drawer front.

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March 2004 Manual 599082

The fan runs continuously during the drying cycle and will restart if the tub is opened and closed again. After the
wash program is complete, the lid drives up, and the fan continues to run for 30 minutes, but will not restart if the tub
is opened.

3.14 Water Softener (where fitted)

The Water Softener uses a softening material (resin) to prevent most of the elements that cause hard water from
being present in the wash water. The resin can only treat a limited amount of water before it needs to be
regenerated. Regeneration is achieved by pumping salty water (brine) through the resin, and flushing away the hard
elements to the drain. The process of delivering softened water, and regeneration is controlled by the Electronic
Controller.

Delivering Softened Water:- Supply water arrives from the inlet valve. In the water softener it passes through a
piper interrupter (air break) and a diverter valve. It is then either directed through the resin to the dispenser, or
directly to the dispenser, then into the tub. The electronic controller measures the volume of water treated, and adds
an appropriate amount of non-treated water, to deliver a mix which is at the required hardness according to a pre­determined schedule. Water is treated according to its supply hardness. The customer is able to select one of 5
settings in option adjustment mode.

Regeneration:- Regeneration is triggered when the amount of water that has been treated since the last
regeneration nears the capacity of the Water Softener. The quantities treatable for each of the 5 settings of supply
hardness have been predetermined, and are stored in the electronic controller. When triggered, immediately after
filling for the main wash, the brine pump is activated and delivers a volume of salty water into the resin, at an amount
appropriate to the hardness setting. When the wash cycle finishes, the resin is flushed with supply water, and the
by-products of regeneration are delivered into the wash water, and drained with it away to waste. Normal treatment
of incoming water then resumes.

Salt:- the customer is required to fill the salt tank with dishwashing salt from time to time. Salt is used in the water
softener by mixing it with water to produce the salty water (brine) used in regeneration. When the salt level is low, a
salt level detector causes a glowing red light to appear in the salt bung, and a “Salt” symbol appears in the LCD.
When this happens, the customer should remove the salt bung, and using the salt container provided, pour salt into
the salt reservoir until salt can be seen at the opening. The “Salt” symbol on the LCD will disappear and the red light
will not be visible when the salt tank bung is replaced. In areas where the supply water is moderately hard (21 dH –
degrees of hardness, 375ppm – parts per million, Water Softener Setting 3) the salt reservoir will need to be filled
about once a month, and in harder areas more frequently. Delivery of treated water from one fill of the salt reservoir:

240 litres at 30 – 100 ppm from 375 ppm supply water
144 litres at 30 – 100 ppm from 625 ppm supply water

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