Fisher & Paykel DishDrawer DD605 Series User manual

599477A
Service Manual
DishDrawer™ Dishwasher
Models:
DD605
DS605

599447A - AUGUST 2007
Fisher & Paykel Appliances Ltd
78 Springs Road,
East Tamaki,
PO Box 58-732, Greenmount,
Auckland,
New Zealand
Phone: [phone]
Fax: [phone]
Email: [email protected]
Fisher & Paykel Customer Services
Pty Ltd
PO Box 798, Cleveland, QLD 4163
A.C.N. 003 3335 171
19 Enterprise Street
Cleveland, QLD 4163
Australia
Telephone: [phone]
Facsimile: [phone]
E-mail: [email protected]
Fisher & Paykel Appliances Ltd U.K
Maidstone Road
Kingston
Milton Keynes
Buckinghamshire
MK10 0BD
England
Telephone: [phone]
Facsimile: 0845 331 2360
E-mail:
[email protected]
Fisher & Paykel Appliances
Unit D2
North Dublin Corporate Park
Swords
Co Dublin
Ireland
Telephone: [phone]
Facsimile: 1800 635 012
E-mail: [email protected]
Fisher & Paykel Appliances Inc
5800 Skylab Rd,
Huntington Beach
California, CA92647
USA
Telephone: [phone]
E-mail: [email protected]
2

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PRODUCTS
Brands Fisher & Paykel
DCS
John Lewis
DeLonghi
Double Models Description Product Code – Market
DD605 Double, Prefinished, Black 80375 NZ, 80379 NZ 110V,
88464 US
DD605 Double, Prefinished, White 80377 NZ, 80392 AU, 88462 US
DD605 Double, Prefinished, Brushed Stainless 80095 NZ, 80381 NZ 110V,
80394 AU, 88465 US
DD605M Double, Prefinished, Iridium Stainless 80386 NZ, 80399 AU
DD605H Double, Prefinished, Water Softener, Black 88835 GB
Double, Prefinished, Water Softener, White 88836 GB, 89206 DK, 88983
TW, 89205 DL GB
Double, Prefinished, Water Softener, Brushed
Stainless 88837 EU, 88838 GB, 88839
DK, 88466 US, 88985 TW
DD605FD Double, Flat Door, D-Handle, Brushed
Stainless 80384 NZ, 80397 AU, 88468 US
DD605MFD Double, Iridium Stainless, Flat Door, D-Handle 80388 NZ, 80402 AU
DD605FDH Double, Flat door, D-Handle, Water Softener,
Brushed Stainless 88843 EU, 88844 GB, 88845,
DK, 89114 TW, 89203 JLP GB
DD605I Double, Integrated 80390 NZ, 80404 AU, 88846 EU,
88469 US
DD605IH Double, Integrated, Water Softener 88847 EU, 88848 GB, 88849
DK, 88470 US, 88987 TW
DD224P5 Double, Flat door, Brushed Stainless 88479 DCS US
FB6011TD Double, Prefinished, Brushed Stainless 88980 JP

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Single Models Description Product Code – Market
DS605 Single, Prefinished, Black 80376 NZ, 80380 NZ 110V,
88471 US
DS605 Single, Prefinished, White 80378 NZ, 80393 AU, 88463 US
DS605 Single, Prefinished, Brushed Stainless 80364 NZ, 80382 NZ 110V,
80383 NZ NUT, 80395 AU,
80396 AU NUT, 88472 US
DS605M Single, Prefinished, Iridium Stainless 80387 NZ, 80400 AU, 80401
AU NUT
DS605H Single, Prefinished, Water Softener, Black 88850 GB, 88473 US
Single, Prefinished, Water Softener, White 89207 DK, 88851 GB, 88989 TW
Single, Prefinished, Water Softener, Brushed
Stainless 88852 EU, 88853 GB, 88854 DK,
88991 TW
DS605FD Single, Flat Door, D-Handle, Brushed
Stainless 80385 NZ, 80398 AU, 88475 US
DS605MFD Single, Iridium Stainless, Flat Door, D-Handle 80389 NZ, 80403 AU
DS605FDH Single, Flat door, D-Handle, Water Softener,
Brushed Stainless 88858 EU, 88859 GB, 88860 DK, 89115 TW
DS605I Single, Integrated 80391 NZ, 80405 AU,
80406 AU 110V, 80407 AU NUT,
88861 EU, 88476 US
DS605IH Single, Integrated, Water Softener 88862 EU, 88863 GB, 88864 DK,
88477 US, 88993 TW
DS124P5 Single, Flat door, Brushed Stainless 88480 DCS US
FB6011D Single, Prefinished, Brushed Stainless 88981 JP

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CONTENTS
1SERVICE REQUIREMENTS....................................................................................................................................8
1.1 Health & Safety.............................................................................................................................................8
1.1.1 Electrical Safety....................................................................................................................................8
1.1.2 Electrostatic Discharge.........................................................................................................................8
1.1.3 Good Working Practices.......................................................................................................................8
1.1.4 Isolate Water Supply.............................................................................................................................8
1.1.5 Water Leak Check................................................................................................................................8
1.1.6 Insulation Test......................................................................................................................................8
1.1.7 Solvent and Excessive Heat Damage...................................................................................................9
1.1.8 Sheet Metal Edges...............................................................................................................................9
1.1.9 Diagnostics...........................................................................................................................................9
1.2 Specialised Tools..........................................................................................................................................9
1.2.1 Static Strap...........................................................................................................................................9
1.2.2 Fisher & Paykel Smart Tool..................................................................................................................9
2DIMENSIONS & SPECIFICATIONS......................................................................................................................10
2.1 Dimensions.................................................................................................................................................10
2.2 Specifications..............................................................................................................................................10
2.2.1 Electrical.............................................................................................................................................10
2.2.2 Components.......................................................................................................................................10
2.2.3 Performance.......................................................................................................................................12
2.2.4 Wash Profiles.....................................................................................................................................12
3TECHNICAL OVERVIEW......................................................................................................................................14
3.1 Chassis.......................................................................................................................................................14
3.2 Drawer Fronts.............................................................................................................................................14
3.3 Electronics..................................................................................................................................................14
3.3.1 Tub Home Sensor ..............................................................................................................................15
3.3.2 Touch Switches..................................................................................................................................15
3.4 Motor...........................................................................................................................................................15
3.4.1 Rotor...................................................................................................................................................15
3.4.2 Spray Arm...........................................................................................................................................15
3.5 Wiring Cover...............................................................................................................................................15
3.6 Lid System..................................................................................................................................................15
3.6.1 Lid Operation......................................................................................................................................15
3.6.2 When Activated..................................................................................................................................15
3.6.3 During a Power Failure.......................................................................................................................16
3.7 Tub..............................................................................................................................................................16
3.8 Filling...........................................................................................................................................................16
3.8.1 Water Inlet..........................................................................................................................................16
3.8.2 Dispensing Detergent and Rinse-aid..................................................................................................16
3.8.3 Amount of Water.................................................................................................................................16
3.8.4 Flood Protection .................................................................................................................................16
3.9 Heating........................................................................................................................................................17
3.9.1 The Heating Element..........................................................................................................................17
3.9.2 Heating the Water...............................................................................................................................17
3.9.3 Maintaining the Temperature..............................................................................................................17
3.9.4 Overheat Protection............................................................................................................................17
3.10 Motor and Heater Plate Locknuts................................................................................................................17
3.11 Drain Cycle .................................................................................................................................................18
3.12 Filter Plate...................................................................................................................................................18
3.12.1 The Filter System ...............................................................................................................................18
3.12.2 Removing and Cleaning the Drain Filter and Filter Plate....................................................................18
3.13 Drying Cycle................................................................................................................................................18
3.14 Water Softener (where fitted)......................................................................................................................19
4OPTION ADJUSTMENT MODE............................................................................................................................20
4.1 How to Change Setup Options....................................................................................................................20

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4.1.1 Rinse Aid / Water Supply Hardness/Auto Power/End of Cycle Beeps/Closed Drawer
Option/Clean/Dirty Dish Symbol..........................................................................................................20
4.1.2 Rinse Aid Setup (rA)...........................................................................................................................20
4.1.3 Water Supply Hardness Setup (hd)....................................................................................................20
4.1.4 Auto Power Option (AP)......................................................................................................................21
4.1.5 End of Cycle Beeps (EC)....................................................................................................................21
4.1.6 Closed Drawer Option (Ld).................................................................................................................21
4.1.7 Clean/Dirty Dish Symbol (dS).............................................................................................................21
4.1.8 Option Adjustment Quick Reference Charts.......................................................................................22
5DIAGNOSTICS.......................................................................................................................................................24
5.1 DishDrawer™ Diagnostics...........................................................................................................................24
5.1.1 Display / Download Mode...................................................................................................................24
5.1.2 Optical LED Download / Fault Display................................................................................................24
5.1.3 Clearing Fault Logs.............................................................................................................................24
5.1.4 Hardware Output Diagnostic Test Mode.............................................................................................25
5.1.5 Fast Test Cycle...................................................................................................................................26
5.1.6 Continuous Cycle Test Mode..............................................................................................................27
5.1.7 Temperature & Voltage Display Mode................................................................................................27
5.1.8 Show Off / Showroom Wash Mode.....................................................................................................28
5.2 Diagnostics Quick Reference Charts...........................................................................................................29
5.2.1 Fault Display/Download Mode............................................................................................................29
5.2.2 Hardware Output Test Mode...............................................................................................................29
5.2.3 Fast Test Cycle...................................................................................................................................29
5.2.4 Continuous Cycle................................................................................................................................30
5.2.5 Temperature & Voltage Display Mode................................................................................................30
6FAULT CODES AND POOR PERFORMANCE.....................................................................................................31
6.1 Fault Code Description Chart......................................................................................................................32
6.2 Fault Code Problem Solving Charts............................................................................................................34
6.3 Poor Dry Performance.................................................................................................................................40
6.4 Poor Wash Performance.............................................................................................................................40
7WIRING DIAGRAMS..............................................................................................................................................43
7.1 Power Distribution Concept.........................................................................................................................43
7.2 Wiring Diagram............................................................................................................................................44
8SERVICE PROCEDURES......................................................................................................................................45
8.1 Drawer Front...............................................................................................................................................45
8.2 Handle and LCD Display.............................................................................................................................45
8.3 Toe Kick Removal.......................................................................................................................................46
8.4 Lower Tub Cowling......................................................................................................................................46
8.5 Tub Removal...............................................................................................................................................46
8.6 Drying Duct –top tub only............................................................................................................................47
8.7 Drying Fan and Flap Valve..........................................................................................................................47
8.8 Water Softener (where fitted)......................................................................................................................48
8.9 Detergent Dispenser ...................................................................................................................................48
8.10 Electronic Controller....................................................................................................................................49
8.11 Filter Plate...................................................................................................................................................49
8.12 Rotor...........................................................................................................................................................49
8.13 Wiring Cover................................................................................................................................................50
8.14 Tub Disconnection.......................................................................................................................................50
8.15 Hall Sensor..................................................................................................................................................51
8.16 Heater Plate and Motor Assembly...............................................................................................................51
8.17 Lid...............................................................................................................................................................52
8.18 Yoke............................................................................................................................................................52
8.18 Lid Actuator.................................................................................................................................................53
8.19 Slide Rail Replacement...............................................................................................................................53
8.20 Mains Filter Cover and PCB Mains Filter.....................................................................................................54
8.21 Water Inlet Valve.........................................................................................................................................54
8.22 Fill Hose, Drain Hose, Wiring Harness Replacement..................................................................................55

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8.23 Link Support Wire Position..........................................................................................................................55
8.24 Front Trim Replacement .............................................................................................................................55

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1 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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1.1.7 Solvent and Excessive Heat Damage
Solvents and excessive heat can damage plastic surfaces.
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 (electrostatic discharge) protection when replacing or handling electronic components.
1.2.2 Fisher & Paykel Smart Tool
Handheld palm computer supplied in a protective case with F&P diagnostics software and service information loaded:
P/N 813141 (includes light pen P/N 425930).

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2 DIMENSIONS & SPECIFICATIONS
2.1 Dimensions
Product Size
(mm) Product Size (inches) Minimum Cavity Size (mm) Minimum Cavity Size
(inches
Height (double) 819.5 - 879.5 32¼ inch – 345/16 inch 822.5 - 882.5mm 323/8inch
Height (single) 409mm 163/32 inch 412mm 167/32 inch
Width 595mm 237/16 inch 600mm 235/8 inch
Depth 570mm 227/16 inch 580mm 227/16 inch
Drawer Open (inc cab) 1090mm 42 7/8inch
2.2 Specifications
2.2.1 Electrical
Market Voltage Frequency Current double/single
NZ/AUS/GB/EU/DK 230/240V AC 50/60 Hz 10 A / 5 A max
USA/TW 110/120V AC 60 Hz 10.6 A / 5.3 A max
JAP 90/110V AC 50 Hz 11.6 A / 5.8 A max
2.2.2 Components
Component Specifications
Controller – 2 types US, TW, JAP, 110V NZ/AU
NZ, AU, GB, EU, DK 120V 230V
Water Inlet Valve
All markets except Japan
Japan only
24V DC
65+/- 10 Ohms per coil
2.5litres/min (0.65 US gal/min)
4 litres/min
Dispenser coils
24V DC per coil 65+/- 10 Ohms per coil
Rinse Aid tank capacity 50mls (approx. 25 washes)
PCB Mains Filter – 2 types NZ, AU, GB, EU, DK
US, JP, TW, 110V NZ/AU 230V AC 110V AC
Motor
Drain speed
Wash speed
Pump out rate 5 litres / min. 80V DC 3 Phase Brushless
4200 RPM
2300 - 2850 RPM
Stator 8.0 +/- 5 Ohms (per winding), 16 ohms phase
to phase from the controller connector

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Component Specifications
Heater Plate NZ
Water Heater Track
Power Supply Resistor
NZ, AU, GB, EU, DK 230V AC
50 Ohms +/- 4 Ohms
98 Ohms +/- 7 Ohms
Heater Plate 110V
Water Heater Track
Power Supply Resistor
US, 110V NZ/AU 120V AC
24 Ohms +/- 3 Ohms
24 Ohms +/- 3 Ohms
Heater Plate 110V JP
Water Heater Track
Power Supply Resistor
Japan 100V AC
20 Ohms +/- 2 Ohms
19 Ohms +/- 3 Ohms
Temperature Sensor Located on the heater Plate 12000 Ohms @ 200C (680F)
8300 Ohms @ 300C (860F)
3000 Ohms @ 600C (1400F)
Fusible Link Located on the heater plate
268 – 302oC (514 – 576oF)
Water Inlet Hose Pressure rating
Length from chassis edge (viewed
from the front)
1000Kpa / 145 P.S.I.
1561 mm from LHS
1344 mm from RHS
Water pressure Water softener models
Non water softener models 1 MPa (145 psi) max, 0.1 MPa (14.5 psi) min 1 MPa (145 psi) max, 0.03 MPa (4.3 psi) min
Drain Hose
Length from chassis edge (viewed from the front) 2011mm from LHS 1794 mm from RHS
Power Cord Length from chassis edge (viewed
from the front) 1776 mm from LHS 1559 mm from RHS
Drying Fan Polarity sensitive
Meter +ve to red wire, -ve to black
wire
24V brushless DC motor
0.27A
approx. 2 to 3 Meg Ohms
Diverter Valve Softener Assy 24V DC Coil
65 +/- 10 Ohms Coil
Brine Pump Assy 24V DC Coil
65 +/- 10 Ohms Coil
Water Softener 500 grams Salt Capacity
approx. 14 regenerations
290+/- 10ml Resin
Lid Actuator
24 V DC approx. 30 Ohms
Hall Sensor 4.13, and 3.43 M ohms
measured +ve in centre, -ve to outside
LCD
5 volt rail between pins 2 & 5 165 Ohms

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2.2.3 Performance
Europe, GB, IE
AAA – wash performance, dry performance, energy useage.
0.64 kWh/cycle energy useage. (1 tub only)
8 litres / cycle water useage (1 tub only)
USA
Based on 4 wash loads per week
Single – 157 kWh/year,
Double – 308 kWh/year
NZ, Australia
Based on 7 wash loads per week, using normal eco programme
Single
Energy - 3 star
- 135 kWh/year
Water - 3.5 star
- 7.4 litres/wash
Double
Energy - 3 star
- 270 kWh/year
Water - 3 star
- 14.7 litres/wash
2.2.4 Wash Profiles
2.2.4.1 GB, IE, EU

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2.2.4.2 NZ, Australia
2.2.4.3 USA

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3 TECHNICAL OVERVIEW
3.1 Chassis
The DishDrawer™ chassis is one complete assembly composed of 5 steel metal components locked together by a
proprietary riveting process. The chassis exterior is made of a lacquered electro-galvanised material.
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 that 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 that 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 DD605/ DS605 (Phase 5) 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 switch mode 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 supply for the motors, solenoids and drying fan. From this the controller can supply voltages from 5V to 85V to
the various components in the DishDrawer™.
A separate 24volt dc power supply on the PCB mains filter board (located within the mains filter housing in the lower left
corner of the chassis) supplies power to the microcontroller and LEDs in the electronic controller.
An isolation relay is mounted on the PCB mains filter and will disconnect power to major components when signalled to
by the controller under certain fault conditions. Once the fault has been cleared, it will require the power to be
disconnected from the product for the isolation relay to reset.
NOTE: - With power supplies of this nature, all components, regardless of supply voltage, should be treated as
live to earth. i.e. at 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 provided by a thermal fuse in series with the
water heater track on the heater plate. In an over-heat situation, this gravity fuse drops off and disconnects the water
heater element from the supply voltage.
A non-serviceable fuse is mounted within the controller to provide additional safety protection.

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3.3.1 Tub Home Sensor
The tub home sensor determines when the tub is closed. The tub home sensor consists of an infrared sender and
receiver mounted on the right side of electronic controller. When the tub is fully closed, infrared light is transmitted from
the sender through a light pipe on the side of the tub, through a prism mounted in the chassis trim, then back through the
other light pipe to the receiver. If the tub is not fully closed, the circuit is not complete and the appliance will not operate.
3.3.2 Touch Switches
Two touch switches are used on the secondary control panel. The one on the left is used to select the required wash
cycle and the one on the right is used to turn the ECO option on or off. (ECO times are not necessarily shorter than non-
ECO times, but will use less energy.) 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.
Note: In DD605 the rotor can only be placed in one position within the motor housing (refer Section 8.12 for
fitting instructions).
3.4.2 Spray Arm
The spray arm is shaped for most efficient water flow. 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 escape 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 the drawers. The wiring cover acts as a cosmetic
part of the product. The centre of the cover is made from rubber to prevent the transmission of noise from the motor to
other components.
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 24 volt
motor.
When the product is first plugged in and switched on at the wall, the lid motors are powered up to ensure that the lid is
fully raised.
3.6.2 When Activated
At the beginning of each wash cycle, both lid motors are powered up to pull the lid down onto the tub in approx 2 to 3
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.

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3.6.3 During a Power Failure
If power to the DishDrawer™ fails with the lid down, the tub can still be forced open manually if access is required. It is
very difficult however to close the tub again without raising the lid. The lid actuators can be wound up manually with the
tub fully removed. Failure to raise the lid before closing the drawer can 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 that 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 and washes them into the
sump where they are trapped by the drain filter or pumped out during the drain cycle.
3.8 Filling
3.8.1 Water Inlet
The tub of the DishDrawer™ fills by a single water inlet hose. Hot water connection is recommended for USA and
Japanese products and cold water connection recommended for the Australasian, UK and European products. From the
connection to the water supply tap 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 water softener (if fitted) then to the detergent dispenser
which directs water into 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 double product the controller allows only one inlet valve to operate at a time. This has been done to reduce EMC
emissions. The top tub has priority. This restriction does not apply in diagnostics mode.
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 is 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. The pump frequency is 1 Hz, and makes a slight beeping sound.
3.8.3 Amount of Water
The tub fills with approximately 2.5 litres / 0.8 US gallons of water, almost level with the base of the spray arm. Once this
level is reached, the wash pump (which has load-sensed the fill via the electronics) becomes primed and pumps the
water through the spray arm causing it to rotate. The load on the wash pump is constantly monitored throughout the
wash cycle and the water level adjusted if necessary. If the wash pump loses prime, the electronics will top up the water
level by opening the fill valve for approx. 5 seconds. It will do this up to 3 times before carrying on regardless.
3.8.4 Flood Protection
A flood sensor mounted on the side of the mains filter housing provides flood protection. If a flood is detected, the drain
pump will run and a F1 fault code will be signalled to the customer

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3.9 Heating
3.9.1 The Heating Element
The heater plate is a porcelain enamelled steel plate with a thick film resistive circuit printed onto the dry side. A gravity
thermal fuse is mounted on the heater plate in series with the heating element. 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 locknut and
supports the motor at the base of the tub.
3.9.2 Heating the Water
The heater plate is positioned 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
A printed circuit board with a temperature sensitive thermistor is mounted on the heater plate. Sensor components are
unserviceable and if they fail a new heater plate is required.
3.9.4 Overheat Protection
The heater plate is only activated during the wash cycles. It is not used for drying. The temperature is monitored by the
thermistor. If a failure occurs with the electronic control of the heater plate, overheat protection is effected by the thermal
fuse on the heater plate.
The thermal fuse consists of a gravity fuse in series with the water heater track that will melt at a relatively low
temperature, 268 –302oC (514 – 576oF) and disconnect the power to the element. This fuse does not isolate the dropper
resistor and so does not remove power from the controller.
3.10 Motor and Heater Plate Locknuts
There are two locknuts holding the heater plate and motor housing assembly into the base of the tub to form a watertight
seal. They do this by compressing two seals, one between the heater plate and tub, and the other between the heater
plate and the motor assembly.
When reassembling the motor, it is important that a motor shim is placed between the inner locknut and the inner
element seal.
The outer locknut has locations that hold the drain hose, fill hose and wiring loom in place.
Another function of the larger outer locknut is to support and clip the wiring cover.

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3.11 Drain Cycle
The drain pump is a self-priming centrifugal pump that 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 lower 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 drain sump in the tub 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 moulded hose that is routed over the link assembly and exits out of the base of the
product and is connected to a domestic drain.
The pump speed during the drain cycle is approx. 4200 rpm. In hardware output diagnostics test mode it is set to the
same speed to aid diagnosing drain problems.
On a double product, the drain motor on the tub which is not being used will run for a short time during the final drain
phase of a wash cycle. This is to remove any drain water that may have back flowed in to the unused tub. This
concurrent drain will not happen if the unused tub is open. If the user presses the power button after water has been
placed in the tub, the product will initiate a “power off” drain and empty the tub.
3.12 Filter Plate
The filter plate is a stainless steel disk positioned below the dish rack and spray arm and completely encompasses the
base of the tub.
3.12.1 The Filter System
The tub has vanes that 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 soil flows 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 Drain Filter and 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
locknut by turning it anti-clockwise. Turning it too far will also release the rotor and may allow it to be lifted out with the
filter plate.
3.13 Drying Cycle
Immediately after water from the final hot rinse has been drained from the tub, the drying cycle begins.
The drying fan draws air through the vent in the rear into the tub where it absorbs water from the dish load. The
moisture-laden air is then mixed with a larger quantity of ambient air (drawn from the kitchen), to minimise the amount of
vapour visible when air is exiting from the bottom of the drawer front.
A flap valve is located in the fan housing. This is closed to prevent moist air from entering the space behind the door
panel during the wash, reducing the possibility of damage to the controller and LCD. It opens whenever the fan is
running.
The fan runs continuously during the drying cycle for various times depending on the program selected, and will restart if
the tub is opened and closed again. After the wash program is complete (when it beeps and the LCD shows 00), the lid
drives up, and the fan continues to run for anything up to 120 minutes depending on the program, but will not restart if the
tub is opened or if a button is pressed.
Note: Dry enhancement mode, available on DD603 products, is not available on DD605 products.

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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 of the resin is controlled by the electronic controller.
Delivering Softened Water: - Supply water arrives from the inlet valve. In the water softener it passes through an 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 that is at the required hardness according to a pre-determined schedule. Water is treated
according to its supply hardness. The customer is able to select one of 5 supply hardness 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 five 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. The frequency of the pump is 3 Hz, and makes a slight rattling sound. Later in the wash cycle, 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. During the flush the fill valve turns on and off alternately for 5 seconds for a number of times
depending on the hardness setting. 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 if one is
fitted. 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), 375 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 (setting 3)
144 litres at 30 – 100 ppm from 625 ppm supply water (setting 5)

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4 OPTION ADJUSTMENT MODE
4.1 How to Change Setup Options
4.1.1 Rinse Aid / Water Supply Hardness/Auto Power/End of Cycle
Beeps/Closed Drawer Option/Clean/Dirty Dish Symbol
To enter this setup mode, press POWER, then hold the ECO touch switch and KEYLOCK button simultaneously for 5
seconds, ensuring that ECO is pushed first. Once the setup mode is entered a beep is emitted and the LCD displays the
letters rA. Pushing the START/PAUSE button allows the user to scroll through and change the following options:-
 Rinse Aid Setup (rA)
 Water Supply Hardness Setup (hd) – only available on water softener models
 Auto Power Option (AP)
 End of Cycle Beeps (EC)
 Closed Drawer Option (Ld).
 Clean/Dirty Dish Symbol (dS)
Note: there is no dry enhancement mode for DD605.
Integrated:- On an Integrated DishDrawer™, where there is no display, the user can still tell which option they have
chosen by using the lights showing on the integrated badge as follows:-
 Rinse Aid Setup (red light above Start/Pause button)
 Water Supply Hardness (green light above Start/Pause button) – only available on water softener models
 Auto Power Option (orange light above Start/Pause button)
 End of Cycle Beeps (green light above Start/Pause button and ECO light is red)
 Closed Drawer Option (red light above Start/Pause button and ECO light is red)
 Clean/Dirty Dish Symbol (no light above buttons, ECO light is red)
Note: there is no dry enhancement mode for DD605.
Push POWER at any time to exit this setup mode.
4.1.2 Rinse Aid Setup (rA)
The current rinse aid setting is shown using the red LEDs on the touch switch panel.
The amount of rinse aid dispensed into a rinse cycle can be varied to suit the level of hardness of the local water supply.
It can be set to 1 - 5 dispensing levels.
(1 = approx 0.5mls (1/10 teaspoon) of rinse aid, 5 = approx. 2.5mls (½ teaspoon) of rinse aid.
Push KEYLOCK to advance the rinse aid setting. Once the desired setting is achieved, push POWER to exit. The rinse
aid index is stored in EE memory, so even with the power removed the rinse aid level is retained.
4.1.3 Water Supply Hardness Setup (hd)
The current supply hardness setting is shown using the red LEDs on the touch switch panel. One of five settings should
be selected according to the known hardness of the supply water.
No LED Water Softener turned off, continuous bypass of softener
1 LED 150-250 ppm water supply hardness
2 LEDs 250-350 ppm water supply hardness
3 LEDs 350-450 ppm water supply hardness
4 LEDs 450-550 ppm water supply hardness
5 LEDs 550-625 ppm water supply hardness
Push KEYLOCK to advance the Water Softener setting. Once the desired setting has been achieved, push POWER to
exit.
Selection of a setting affects how the electronic controller diverts supply water, how much water is treated, and how much
salt is used in regeneration, in a manner that optimises the performance of the water softener.