Fisher & Paykel DD601 User manual

DishDrawer
Models
DD601 DD601I
DS601 DS601I
599022

Contents
1.0 SERVICE REQUIREMENTS 1
1.1 Health & Safety 1
1.2 Specialised Tools 3
2.0 DIMENSIONS & SPECIFICATIONS 4
3.0 TECHNICAL OVERVIEW 5
3.1 Electronics 5
3.2 Motor 5
3.3 Cabinet 5
3.4 Filling 6
3.5 Dispensing Detergent 7
3.6 Lid Seal 7
3.7 Wash Cycle 8
3.8 Heating 8
3.9 Filter Plate 9
3.10 Drain Cycle 9
3.11 Drying Cycle 10
3.12 Deflating 10
3.13 Lockring Nut 10
3.14 Wiring Cover 11
4.0 DIAGNOSTICS 12
4.1 Setup & Diagnostics 12
4.2 Fault Modes 12
4.3 Diagnostic Modes 13
4.4 Diagnostics Quick Reference Flow Chart 18
4.5 Fault Codes 20
5.0 WIRING DIAGRAM 33

6.0 SERVICE PROCEDURES 34
6.1 Drawer Front Removal 34
6.2 Handle and LCD Display Removal 34
6.3 Drying Fan Removal 34
6.4 Detergent Dispenser 35
6.5 Electronic Controller 35
6.6 Top Kick Strip Removal 35
6.7 Lower Kick Strip Removal 36
6.8 Wiring Cover Removal 36
6.9 Filter Plate Removal 36
6.10 Rotor Assembly Removal 36
6.11 Tub Removal 37
6.12 Locking Ring, Element Plate & Motor Assembly Removal 37
6.13 Lid Assembly Removal 38
6.14 Lid Seal Replacement 38
6.15 Slide Runner Replacement 39
6.16 Front Trim Replacement 39
6.17 Sound Gasket Replacement 39
6.18 Link Assembly Removal 40
6.19 Air Pump Removal 40
6.20 Exhaust Valve Removal 41
6.21 Water Valve Removal 41
6.22 Flood Switch Removal 41
6.23 EMI Filter Removal 42
6.24 Tub Microswitch Removal 42

- 4 -
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 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.

- 5 -
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.
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 receivinga 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.
D

- 6 -
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 Down Load Pen Connection: P/N 425930C.
To be used to retrieve data from the electronic controller along with the diagnostic
program on your laptop.
1.2.3 Down Load Serial Connection: P/N 425376C.
To be used to retrieve and download data from the electronic controller along with
the diagnostic program on your laptop.
1.2.4 Perspex Test Lid: P/N 525826.
To be used on the drawer while extended to observe water fill,
wash and drain operations.
1.2.5 Air Gauge and Plumbing. P/N 525819.
To be used to measure the air pressure in the lid seal and plumbing.

- 7 -
2.0 DIMENSIONS & SPECIFICATIONS
Product Size (mm) Minimum Cavity Size
Height 817-877mm 820-880mm
Width 595mm 600mm
Depth 570mm 580mm
Drawer Open (incl cab) 1080mm
Electrical 230-240V AC 50Hz 10amp max.
Specifications
Lid Seal
P/N525878
Exhaust Valve
P/N525415
Lid Seal Air Pump
P/N525430
Water Inlet Valves
P/N525113 Dual
P/N525842 Single
Flood Switch
P/N525941
EMI Filter
P/N525908P
Motor
Drain
Wash
Stator
P/N525933
Rotor
P/N525736
30-40 Kpa
12 Volt ac
70 ±5 Ohms
5 Volt ac
16 ±2 Ohms
24Volt dc
70 ±5 Ohms
5 Lt/min
24Volt dc
Double Pole
240Volt ac
40 Volt dc 3 Phase
4200RPM
2300-2850RPM
2.5 ±0.2 Ohms
per winding
Detergent
Dispenser
P/N525675
Rinse Aid
Dispenser
Electronic P.C.B.
P/N525832P
Control Panel Std
P/N525192P
Control Panel
Integrated
P/N525185P
24 volt dc
70 ±5 Ohms
5 grams
10 grams
15 grams
5 gram pre-rinse
24 Volt dc
70 ±5 Ohms
50 mls
25 reg. Washes
approx
230-240 Volt Input
Outputs: -
230 Volt ac
40 Volt dc
24 Volt dc
24 Volt dc
24 Volt dc
Temperature Sensor
(Part of Heater
Plate)
Inlet Hose
P/N525151
Drain Hose
P/N525435
P/N525495
962-Ohms @ 20°C
1000-Ohms@ 30°C
1202-Ohms @ 60°C
1.7m
960Kpa
2.0m from rear of
cabinet
2.5m bottom tub
2.9m top tub
Heater Plate
P/N525169 240 Volt ac
55 ±5 Ohms

- 8 -
3.0 TECHNICAL OVERVIEW
3.1 Electronics
The DD601 electronic controller has two separate micro controllers on the main printed circuit
board. One is for motor control and output switching and the other is for controlling interface and
console functions.
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 a serial communications port for fault
finding and product information.
All output peripherals (solenoids, fans etc), except the heating element, are run on low voltage
(24v).
The power for all low voltage devices comes from a 100w switchmode power supply, which is
cooled by a heatsink and when necessary the drying fan.
The element is switched by a relay and protected by a fail safe relay.
3.2 Motor
The motor is a fully electronically controlled 40V 60w 3 phase 6 pole brushless DC motor,
running at approximately 2300-2850 depending on wash cycle selected, 2500 rpm on Normal, Fast,
and Rinse cycles, 2300 on Delicate and 2850 on Heavy Wash, 4200 rpm on Drain.
3.3 Cabinet
3.3.1 Chassis
On the double drawer the double chassis is one complete assembly composed of 5 steel
metal components locked together by a proprietry riveting process. The chassis exterior is
made of white prepaint, while other components are made of electrogalvanised material.
On the single drawer four bolts and washers are used to secure the chassis to the shelf using
the steel inserts.
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 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 510mm out of the cabinet by travelling along two rigidly attached slides on
either side of the tub.

- 9 -
3.3.2 Drawer Fronts
Prefinished drawer fronts are formed from a prepainted blank of steel. 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.
3.4 Filling
3.4.1 Cold Inlet
The tub of the dishwasher fills by a cold water inlet hose only. From the connection to the
cold water pipe 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 customised link assemblies at the back of the
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.
3.4.2 Mixing the Detergent
Filling cold water enters the detergent dispenser, flushing the detergent from the cup,
through the dispenser into the tub.
3.4.3 Amount of Water
The tub fills with approximately 2.2 litres of water, level with the base of the spray arm
attachment. Once this level is reached, the wash pump (which has sensed the fill at 30
second intervals during the fill), becomes primed and pumps the water through the spray
arm which will then rotate.
The water level is monitored by sensing the motor load through the electronics.

- 10 -
3.5 Dispensing Detergent
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 necessary.
Additionally a positive displacement pump unit and storage tank are incorporated within the
dispenser to supply rinse aid. The rinse aid dispensed volume is adjusted utilising the dishwasher
electronic controller. A glowing red light on the tank filler cap indicates an empty rinse aid tank.
3.6 Lid Seal
3.6.1 When Activated
At the beginning of each wash cycle, the lid seal inflates while the pre wash drain cycle
removes any residue water from the tub. This runs for approximately 60 seconds, then the
tub fills.
3.6.2 What is the Lid Seal
The lid seal is a static plastic moulding retained in the lid which provides a dynamic seal to
the tub. The dynamic seal is created by a bellows section gasket bridging between the top
flange of the tub and the lid. The dynamic seal also locks the tub/drawer during washing.
3.6.3 During Wash
The bellows section gasket is inflated by a solenoid activated diaphragm air pump. This
cycles during the complete cycle at timed intervals to maintain a 35kpa sealing pressure.