Fisher & Paykel DS6021 User manual

MODELS
DD602 DD602I
DS602 DS6021
200432

- 2 -
Fisher & Paykel Appliances Ltd
27 Hubble, Irvine, CA 92618
Tel: [phone] [phone]
Fax: [phone]

- 3 -
CONTENTS
1.0 SERVICE REQUIREMENTS ........................................................................................5
1.1 HEALTH & SAFETY.......................................................................................................5
1.1.1 Electrical Safety........................................................................................................... 5
1.1.2 Electrostatic Discharge................................................................................................ 5
1.1.3 Good Working Practices.............................................................................................. 5
1.1.4 Isolate Water Supply ................................................................................................... 5
1.1.5 Water Leak Check....................................................................................................... 5
1.1.6 Insulation Test ............................................................................................................. 6
1.1.7 Solvent and Excessive Heat Damage.......................................................................... 6
1.1.8 Sheet Metal Edges ...................................................................................................... 6
1.1.9 Diagnostics.................................................................................................................. 6
1.2 SPECIALISED TOOLS ....................................................................................................7
1.2.1 Static Strap:................................................................................................................. 7
1.2.2 Down Load Pen Connection: P/N 425930C. ................................................................ 7
1.2.3 Down Load Serial Connection: P/N 425376C. ............................................................. 7
1.2.4 Perspex Test Lid: P/N 525826..................................................................................... 7
1.2.5 Air Gauge and Plumbing. P/N 525819. ....................................................................... 7
2.0 DIMENSIONS & SPECIFICATIONS ............................................................................8
3.0 TECHNICAL OVERVIEW .......................................................................................10
3.1 ELECTRONICS ...........................................................................................................10
3.2 MOTOR .....................................................................................................................10
3.3 CABINET ...................................................................................................................10
3.3.1 Chassis...................................................................................................................... 10
3.3.2 Drawer Fronts............................................................................................................ 11
3.4 FILLING.....................................................................................................................11
3.4.1 Cold Inlet ................................................................................................................... 11
3.4.2 Mixing the Detergent ................................................................................................. 11
3.4.3 Amount of Water ....................................................................................................... 11
3.5 DISPENSING DETERGENT ...........................................................................................12
3.6 LID SEAL...................................................................................................................12
3.6.1 When Activated ......................................................................................................... 12
3.6.2 What is the Lid Seal .................................................................................................. 12
3.6.3 During Wash ............................................................................................................. 12
3.7 WASH CYCLE ............................................................................................................13
3.7.1 Tub ............................................................................................................................ 13
3.7.2 Rotor ......................................................................................................................... 13
3.7.3 Sprayarm...................................................................................................................13
3.8 HEATING...................................................................................................................13
3.8.1 The Element .............................................................................................................. 13
3.8.2 Heating the Water ..................................................................................................... 13
3.8.3 Maintaining the Temperature..................................................................................... 13
3.8.4 Overheating Control .................................................................................................. 14
3.9 FILTER PLATE ...........................................................................................................14
3.9.1 The Filter System ...................................................................................................... 14
3.9.2 Removing and Cleaning the Filter Plate..................................................................... 14
3.10 DRAIN CYCLE ........................................................................................................14
3.11 DRYING CYCLE ......................................................................................................15
3.12 DEFLATING ............................................................................................................15
3.12.1 Lid Seal ..................................................................................................................... 15
3.12.2 When the Lid Seal Deflates ....................................................................................... 15
3.13 LOCKRING NUT ......................................................................................................15

- 4 -
3.14 WIRING COVER......................................................................................................16
4.0 DIAGNOSTICS .......................................................................................................16
4.1 SETUP & DIAGNOSTICS ..............................................................................................16
4.2 FAULT MODES...........................................................................................................16
4.3 DIAGNOSTIC MODES ..................................................................................................17
4.3.1 Temperature Display Mode........................................................................................ 17
4.3.2 Rinse Aid / Tub-Open Beep Water Pressure Setup Mode ......................................... 17
4.3.3 Rinse Aid Setup......................................................................................................... 17
4.3.4 Tub-Open Beep Setup............................................................................................... 17
4.3.5. Water Pressure Set Up.............................................................................................. 18
4.3.6 Dishwasher Diagnostics ............................................................................................ 18
4.3.7 Display / Download Mode .......................................................................................... 18
4.3.8 Optical LED Download / Fault Display ....................................................................... 18
4.3.9 Clearing Fault Logs ................................................................................................... 19
4.3.10 Show Off Mode.......................................................................................................... 19
4.3.11 Hardware Output Diagnostic Test Mode .................................................................... 19
4.3.12 Continuous Cycle Life Test Mode .............................................................................. 20
4.4 DIAGNOSTICS QUICK REFERENCE FLOW CHART ..........................................................22
4.4 DIAGNOSTICS QUICK REFERENCE FLOW CHART CONT'D...............................................23
4.5 FAULT CODES ...........................................................................................................24
5.0 WIRING DIAGRAM ....................................................................................................37
6.0 SERVICE PROCEDURES..........................................................................................38
6.1. DRAWER FRONT REMOVAL.........................................................................................38
6.2. HANDLE AND LCD DISPLAY REMOVAL.........................................................................38
6.3 DRYING FAN REMOVAL ..............................................................................................39
6.4 DETERGENT DISPENSER ............................................................................................39
6.5 ELECTRONIC CONTROLLER.........................................................................................40
6.6 TOP KICK STRIP REMOVAL .........................................................................................40
6.7 LOWER KICK STRIP REMOVAL ....................................................................................40
6.8 WIRING COVER REMOVAL ..........................................................................................41
6.9 FILTER PLATE REMOVAL ............................................................................................41
6.10 ROTOR ASSEMBLY REMOVAL ..................................................................................41
6.11 TUB REMOVAL .......................................................................................................42
6.12 LOCKING RING, ELEMENT PLATE AND MOTOR ASSEMBLY REMOVAL...........................42
6.13 LID ASSEMBLY REMOVAL ........................................................................................43
6.14 LID SEAL REPLACEMENT ........................................................................................43
6.15 SLIDE RUNNER REPLACEMENT................................................................................44
6.16 FRONT TRIM REPLACEMENT....................................................................................44
6.17 SOUND GASKET REPLACEMENT ..............................................................................44
6.18 LINK ASSEMBLY REMOVAL ......................................................................................45
6.19 AIR PUMP REMOVAL...............................................................................................45
6.20 EXHAUST VALVE REMOVAL .....................................................................................46
6.21 WATER VALVE REMOVAL........................................................................................46
6.22 FLOOD SWITCH REMOVAL.......................................................................................46
6.23 EMI FILTER REMOVAL............................................................................................47
6.24 TUB MICROSWITCH REMOVAL .................................................................................47

- 5 -
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.

- 6 -
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 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.
D

- 7 -
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.

- 8 -
2.0 DIMENSIONS & SPECIFICATIONS
Double SingleDescription
Product Size Minimum
Cavity Size
Product Size Minimum
Cavity Size
Height 32 3/16 – 34 9/16 32 5/16 – 34
11/16
16 1/32” 16 5/32”
Width 23 5/8” 23 5/8” 23 7/16” 23 5/8”
Depth 22 15/32” 22 7/8” 22 7/16” 22 7/8”
Drawer Open
(incl cab)
20 1/8” 20”
Electrical 120V AC 60Hz 12amp max.

- 9 -
Specifications
Lid Seal
P/N525878
4.5 PSI – 6 PSI
Exhaust Valve
P/N525415
9-12 Volt dc (pulsed)
70 ±5 Ohms
Detergent Dispenser
P/N 525675
15-20 volt dc
(pulsed)
70 ±5 Ohms
0.18 ounces
0.36 ounces
0.54 ounces
0.18 ounces pre-
rinse
Lid Seal Air Pump
P/N525430
3-6 Volt dc (pulsed)
16 ±2 Ohms
Rinse Aid Dispenser 12-18 Volt dc
(pulsed)
70 ±5 Ohms
.013 gal
25 reg. Washes
approx
Water Inlet Valves
P/N525113 Double
P/N525842 Single
15-20 Volt dc
(pulsed)
70 ±5 Ohms
1.325 gal/min
Electronic P.C.B.
P/N525832P
120 Volt ac
Outputs:-
120 Volt ac
40 Volt dc
24 Volt dc
Flood Switch
P/N525941
24Volt dc
Double Pole
Control Panel Std
P/N525192P
24 Volt dc
EMI Filter
P/N525934
120 Volt ac Control Panel
Integrated
P/N525185P
24 Volt dc
Motor
Drain
Wash
12-40 Volt dc 3
Phase
42000RPM
2300-2850RPM
Inlet Hose
P/N525937
67 inches
139.2 PSI
Stator
P/N525933
2.5 ±0.2 Ohms
per winding
Rotor
P/N525736
Drain Hose
P/N525435
P/N525495
78 13/16 inches
from rear of cabinet
98 ½ bottom tub
114 ¼ top tub
Temperature
Sensor
(Part of Heater
Plate)
962-Ohms @ 68°F
1000-Ohms@ 86°F
1202-Ohms @ 140°F
Heater Plate
P/N525814
110 Volt ac

- 10 -
3.0 TECHNICAL OVERVIEW
3.1 Electronics
The DD602 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 proprietary 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 20 inches out of the cabinet by travelling along two rigidly attached slides
on either side of the tub.

- 11 -
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 0.7 gallons of water, level with the base of the sprayarm
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
sprayarm, which will then rotate.
The water level is monitored by sensing the motor load through the electronics.

- 12 -
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 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 inflates by a solenoid activated diaphragm air pump. This
cycles during the complete cycle at timed intervals to maintain a 3 psi sealing pressure.

- 13 -
3.7 Wash Cycle
3.7.1 Tub
The tub is the main cavity where all the wash activity occurs. The tub is a plastic
recepticle which has a wash pump and sprayarm 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.
3.7.2 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.
3.7.3 Sprayarm
The sprayarm is shaped for most efficient waterflow. The holes are positioned for best
penetration into the washload, with the water jets angled to ensure the sprayarm rotates at
the most efficient speed.
3.8 Heating
3.8.1 The Element
The heater plate is an element consisting of a porcelain enamelled steel plate with a thick
film resistive circuit written onto the dry side. The element is clamped in place by a
lockring nut and supports the motor at the base of the tub.
3.8.2 Heating the Water
The heater plate lies beneath the filter plate. This creates a flow through water heating
system during the wash cycle by allowing water to flow through the filter plate, over the
surface of the element and into the wash pump.
3.8.3 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.

- 14 -
3.8.4 Overheating Control
The heater plate is only activated during the wash cycles. It is not used for drying. The
temperature is maintained by the thermistor. The element circuit is continuously
monitored by the electronic controller and will switch a fail-safe relay if a fault is detected
in the heater circuit. The element is thermally monitored by the thermistor on the element
through the electronic controller.
3.9 Filter Plate
The filter plate is a stainless steel disk, which lies below the dishrack and sprayarm and
completely encompasses the base of the tub.
3.9.1 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 1/16” or smaller soils flow through its micro mesh filter,
eliminating re-depositing of soil during the wash. Only soils up to ¼” pass through the
drain filter during the drain cycle. This requires the drain filter to be regularly emptied and
cleaned.
3.9.2 Removing and Cleaning the Filter Plate
The drain filter can be emptied with the dishrack in place by removing the cutlery basket
and opening the plastic section of the dishrack. The filter plate is removable for cleaning
by removing the dishrack and sprayarm and unlocking the lockring nut anti-clockwise.
3.10 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 made from
acetal pushed into a spline on the end of the rotor shaft. The drain cycle is a 60 second
timed drain period.
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.

- 15 -
3.11 Drying Cycle
Immediately after water from the final hot rinse has been drained from the tub, the drying
system begins operation.
The fan draws air through the tub, where it absorbs water from the dishload. 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 the drawer front.
The fan runs continuously during the drying cycle and will restart if the tub is opened and
closed again. After the drying cycle is complete, the fan continues to run for 30 minutes,
but will not restart if the tub is opened.
The fan is pulsed when needed throughout the entire wash cycle. This draws ambient air
through the electronics heatsink to maintain the electronics components within their
specified operating temperatures.
3.12 Deflating
3.12.1 Lid Seal
The lid seal is a static plastic moulding retained in the lid, which provides a dynamic seal
to the tub during the washing cycles.
3.12.2 When the Lid Seal Deflates
At the end of the dishwasher programme, or a pause in the programme, an exhaust valve
releases the air pressure from the bellows section gasket. This deflates the seal and
unlocks the tub and drawer.
3.13 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.

- 16 -
3.14 Wiring Cover
The wiring cover protects the customer from the 120V mains supply which passes over
the link assembly and under the lockring to the front of the tub. 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.
4.0 DIAGNOSTICS
4.1 Setup & Diagnostics
The DishDrawer comes with comprehensive fault codes and built in diagnostics, to save
the user & service person time and worry, if the dishwasher ever exhibits a fault.
4.2 Fault Modes
The faults are displayed in the LCD as one of 10 F (fatal) faults or one of 10 U (user)
faults. A Fatal fault will usually require the assistance of a qualified service person, while
many User a faults are simply blockages or installation errors, easily fixed by the user. In
the Integrated models, an LCD is not available, and faults are indicated by a Red center
LED, with the fault number indicated on the touch switch panel with Red LED’s. The
indication below for the Touch Switch Panel is from left to right, with ‘_’ meaning the LED
is Off, and ‘#’ meaning the LED is On. A fatal fault is accompanied by a continuous
pulsating beep, while a user fault is accompanied by a more pleasant continuous pulsating
tone pattern. The last two faults are logged into EE memory, with 8 bytes of information
logged to aid location of the fault. These bytes are available for interrogation by a PC if
required. The following faults have been implemented in the DishDrawer.
To clear any fault press the Power button. If the fault is still present then it cannot be
cleared.

- 17 -
4.3 Diagnostic Modes
4.3.1 Temperature Display Mode
During a wash cycle, the current water temperature can be displayed on the LCD instead
of the time remaining. To enter temperature display mode, start a wash cycle as normal.
Initiate a keylock by pushing and holding the Keylock button for 4 seconds.
Once in keylock mode push and hold Start/Pause for 8 seconds to enter temperature
display mode. The temperature is now displayed and the MIN symbol is switched off.
Keylock mode can now be exited.
To cancel temperature display mode, either repeat the above procedure or enter power off
mode by pressing Power. Temperature display mode is automatically cancelled at the
end of a wash program (even in CC mode).
4.3.2 Rinse Aid / Tub-Open Beep Water Pressure Setup Mode
To enter this setup mode, hold the Program and Eco touch switches simultaneously for 5
seconds. Once the setup mode is entered a beep is emitted and the LCD is red with ‘HP’
displayed.
Push Power at any time to exit this setup mode.
4.3.3 Rinse Aid Setup
The current rinse aid setting is shown using orange LED’s 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 is adjusted for 1 - 5 dispenser levels (1 = approx 1ml of rinse
aid, 5 = approx. ounce equivalent of rinse aid).
Push Programme 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.
4.3.4 Tub-Open Beep Setup
The beep sequence that occurs when the tub is opened can be turned on or off using the
Keylock button. If the Smiley Face on the LCD is On then the beep sequence will occur
when the tub is Opened. If the Smiley face is Off then no beeps will occur when the tub is
Opened. Push Power to exit when the desired setting has been selected.
The Integrated Model will sound a single beep when turning this option off, while the
actual beep sequence is sounded when turning this option on. The DishDrawer will
default to 'beeps on' if the mains power is removed.

- 18 -
4.3.5. Water Pressure Set Up
The DishDrawer can be set to either High (Standard) or Low inlet water pressure. The
LCD displays the current water pressure setting.
If “HP” is displayed then the setting is High Pressure.
If “LP” is displayed then the setting is Low Pressure. Low pressure is generally less than
50kPa or 7.25 PSI equivalent to that supplied by a ceiling tank.
Push the Start/Pause button to alternate between HP and LP.
Integrated: A high beep is sounded when changing the HP, and a low beep is sounded
when changing to LP. Push Power to exit when the desired setting has been selected.
4.3.6 Dishwasher Diagnostics
Dishwasher Diagnostics can only be entered in Power Off mode, ie. When there is no
display on the LCD or the badge LED’s are off. Diagnostics is entered by holding the
Keylock and Start/Pause buttons simultaneously for 6 seconds. Ensure that Keylock is
pushed first to prevent the dishwasher from starting a wash, from a Start/Pause keypress.
There are currently four levels of diagnostics. To move to next level push Power. Once a
mode has been entered, pushing Power will exit diagnostics completely (except Display &
Show Off modes). If no mode is entered then the display will cycle through the four levels
and exit after the last. On entering diagnostic mode the first level is Download Mode.
4.3.7 Display / Download Mode
In this mode all LED’s (except Rinse program) and LCD segments (except keylock) are
illuminated.
4.3.8 Optical LED Download / Fault Display
An optical data download is available here to download all EE data to a PC via the Rinse
Program Red LED. Hold the reader pen over the Rinse Program LED and press Start /
Pause to initiate the download. A short beep indicates the start and finish of download.
The last two faults are displayed on the LCD during the optical download, with the Current
Fault code displayed first followed by the Previous Fault Code.

- 19 -
4.3.9 Clearing Fault Logs
To Clear the current Fault press the Keylock button until a beep is sounded. This action
moves the Current Fault into the Previous Fault while clearing the Current Fault. To Clear
the Previous Fault press Keylock once more until the beep is sounded.
Warning: Once a fault has been cleared it is permanently removed from Memory and
cannot be recovered.
Press Power to advance to the next mode.
4.3.10 Show Off Mode
This mode initiates a shop show off display and operation demonstration. The LCD
display is Red backlight ‘Ad’. The touch switch LED’s are - Grn Grn __ Grn Grn.
Press Power to move onto the next mode.
Press Start/Pause to initiate show off mode:
A short series of tones indicates that Show Off mode has been entered. The Show Off
display cycles through every LED, & LCD segment. If any front panel key is pressed the
dishwasher will re-initiate a series of short tones.
Once Show Off mode has been initiated, the mains power must be removed to exit out of
Show Off mode.
4.3.11 Hardware Output Diagnostic Test Mode
This mode tests all the hardware outputs and inputs. The LCD display is Red backlight
and ‘HO’.
Press Power to skip hardware diagnostics and advance to the next mode.
Press Start/Pause to enter hardware diagnostics.
Once hardware diagnostics has been entered the current hardware output being tested is
indicated in green on the touch switch panel, using binary encoding, and also on the LCD
as shown below.
Any combination of outputs can be switched on or off. Load sensing is enabled when the
motor is running.
Press Start/Pause to advance to next hardware output.
Press Keylock to turn the currently displayed output On or Off. If the currently displayed
output has a green backlight then that output has been switched on, and if the backlight is
red then that output is off.
Press Power to Exit at any time (All outputs will be switched off on exit).
The LCD display and touch switch panel green LED’s are illuminated to correspond to a
particular hardware device. The following table details the display order of the test.

- 20 -
LCD Heavy Norm Fast Deli Hardware Output
-------------------------------------------------------------------------------------------
EU Off Off Off On Exhaust Valve
FU Off Off On Off Fill Water Valve
dd Off Off On On Detergent Diverter Valve
LS Off On Off Off Lid Seal Pump
rd Off On Off On Rinse Aid Dispenser (dispenses
current setting)
P1 Off On On Off Motor Wash direction
(2300-2850 rpm)
P2 Off On On On Motor Drain direction
(4200 rpm)
dF On Off Off Off DC drying fan (On
100% duty)
Er On Off Off On Element Relay
‘temp’ On Off On Off Displays current water
temperature.
WARNING: As there is no protection in this mode it is possible to turn the element on with
no water in the tub. It is advisable to avoid turning on the element without water in the tub.
NB: No Fault codes will come up while in diagnostics mode.
Tub Open Microswitch Test: At any time during HO test mode the Rinse red LED
indicates the tub position. On = Open, Off = Closed.
Note: There maybe a short delay (up to 0.5sec) from when the tub has changed state to
the position that is indicated on the LED. This is due the communication delays between
the two micro-controllers.
4.3.12 Continuous Cycle Life Test Mode
In this mode the dishwasher can be run continuously in any wash cycle. Once the cycle
has finished, the dishwasher automatically restarts the same wash cycle.
The LCD is Red backlight and display CC. The touchswitch panel is -
Red Red __ Red Red.
To exit diagnostic mode push Power.
To initiate a continuous cycle press Start/Pause. The dishwasher will enter standby
mode. Choose the required cycle and operate the dishwasher as normal. Continuous
cycling can be canceled at any time by pushing the Power button, or removing the mains
power. Continuous cycling is indicated by the backlight alternating between green and
orange.
In continuous cycle a delay occurs when a cycle has finished before the next cycle starts.
This delay is currently 1 min. During this time the LCD displays a finish cycle display, and
the backlight alternates between RED and OFF.