REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Showing posts with label FISHER. Show all posts
Showing posts with label FISHER. Show all posts

Saturday, 6 April 2019

FISHER AND PAYKEL DEX1 AA WH INTUITIVE DRYER – EXPLODED VIEW - PARTS

Fisher and Paykel DEX1 AA WH INTUITIVE DRYER – Exploded View - Parts

Exploded Views & PARTS LIST - Fisher & Paykel DEX1 AA WH INTUITIVE DRYER
The picture shows the type of product and may not necessarily be an exact image of the models.  The components shown in italics with a part number are those parts in the kit which are available also as separate items. In addition, some parts may be supplied with this kit which are not available as separate items and are therefore either not listed or a part number is not shown against the part description.
TOP DECK AND ELECTRONICS
CABINET, DRUM AND INLET DUCT
OUTLET DUCT
CHASSIS COMPONENTS & MOTOR ASSEMBLY
SUBDECK ASSEMBLY & DRUM DOOR ASSEMBLY
BASE PANEL AND COMPONENTS
CLICK ON THE PICTURES TO MAGNIFY

Thursday, 28 March 2019

FISHER AND PAYKEL PHASE 6 SERIES 11 - WASHING MACHINE – FAULT CODES – LED BLINKING CODES

Fisher and Paykel Phase 6 series 11 - Washing Machine – Fault codes – LED Blinking codes

Models : MW511 - GW511 - GW611 - GW711 - IW511 - IW711 - IW811
 
  The electronics for Series 11 are air-cooled in the same way as the Phase 5 (series 9) machine. This has changed from being water cooled as in earlier models. This has been made possible by changes to the stator winding which allows a lower current through the electronics and the use of the latest low loss, semi-conductor-switching device.
Electronic Modules are not inter-changeable between models. The different modules for the different models can be identified by their colour.
The new Series 11, phase 6 modules MW / GW and Intuitive are coloured brown. GW / MW p/n 420092, IW Eco p/n 420093
It is important not to mix the different coloured modules as they are not compatible and the washing machine will not work.
The latest module is similar to the series 9 module. The difference is that the terminals are pushed on sideways at the top of the module.  An IW display will not work on a GW/MW motor controller and, if tried, will present a 105 fault, which is a comms error.
The Series 11 module now has a 7 position connection for the display and a 4 position connection for the Lid Lock / OOB.
Standby mode
If a Series 11 machine has not received any instructions for 10 to 15 minutes after being switched on at the power point, or after completing the cycle, it will automatically go into a low power “Stand By” mode in the same way as the Series 9 Smart Drive. The screen will be blank as if it was powered off at the wall. Before entering the Diagnostic or Option Adjustment modes, the machine must be taken out of the Stand By mode. To do this, the power button will have to be pressed on and off or the
Water Temperature Sensing
The thermistor for sensing water temperature in the GW & IW models, is now located in the inlet chamber and is available as a separate spare part under part number 479164P.  See specifications for the temperature / resistance readings. Machine turned off and on at the power point.
Water Valves
The Series 11 machines use the same water valves as the Series 9 machines which are 24 volts and are not interchangeable with previous model Smart Drive washing machines. The terminals are the “RAST 2.5” system. Extra care must be taken to ensure these connections are plugged in squarely to avoid damage to the terminals. When removing the harness plug from the valve, the small retaining clip located on the solenoid coil behind the plug must be released.
Stator
The stator resistance of Phase 6 is the same as Phase 5, which was changed to allow for a lower current through the electronics. This stator is not interchangeable with the previous models and can be identified by smaller terminal connections. The resistances of the windings are 16 ohms per phase. The rotor has not changed and can be used for all models of Smart Drive and Intuitive Washer except Phase 1 models.
 Pump
The pump now uses a vortex impeller, which reduces the operating sound levels at the end of the drain cycle. The way the pump is controlled has changed. During the drain cycle the pump is stopped and started quickly every 10 / 15 seconds.  The pulsing on and off of the drain pump only occurs when the inner bowl has floated.
[If the pump has blocked/ jammed and the thermal overload has gone open circuit, just remove the blockage from the pump. The module and the pump should still be okay. If the pump windings are water damaged, the pump will quickly overheat and cut off again.  The pump must be replaced in this case. (If the pump shorted to earth, it is possible that the module could short out on series 9 and 10 machines). Series 11 should not have this problem as the pump is not powered through the motor controller as with the phase 5 products. Series 11 phase 6 machines do not utilize the pump to dump energy. This change also reduces the potential for failure.  It is important to check the pump windings thoroughly for water damage. It is possible for the resistance of a water-damaged pump to be normal, however the inductance of the pump can change causing it to overheat and cut out. There are new fault codes in the system that now relate to the pump circuit and its function.
Lid-Lock
On the Series 11 Smart drive & Intuitive washer there is now a lid lock. During the spin and drain out part of the cycle prior to spray, the lid will lock down until the completion of the spin. Once the spin has completed, the lock will release and the lid can be opened. The Lid Lock LED will illuminate on the GW and MW machines.
A lock will be displayed on the IW model when the lid lock is activated.
If the lid lock fails in the closed position the removal process is as follows:
The locked lid can be lifted on the sides enough to allow the lid buffers to be removed.  This will allow the screws holding down the top deck to be unscrewed. The top deck can then be lifted up, removing the lid lock screw will allow the lid lock housing to be replaced.  Replacement part number is 420036P, this is an assembly and should not be dismantled.  Un-clip the clear cap from the housing and disconnect the Rast connection. Clip the new housing in and re-assemble.
If the harness is damaged, replacing it requires the following method.
Remove the lid from the top deck assembly. The Console will need to be removed to access the wiring connection to the motor controller if the wiring loom is replaced. This harness is also part of the harness to the OOB switch and the motor controller will need to be lifted to remove and replace it. Remember to secure the wire into the retainers under the top deck, or damage may occur during operation.
[If the power supply is cut during the spin cycle, the machine will keep the lid locked until the rotor has ceased to turn (3 to 10 secs). Only then will it release the lock, the motor is acting like a generator and allows the lock to stay energized under the bowls inertia.  In a brown out situation the machine will restart at the start of whatever cycle it was doing and continue the wash. The lid lock would then be reactivated if it happened to be on a spin cycle.]
SIZE SETTING MODE FOR SERIES 11
MW / GW Size setting
The difference between Series 11 and previous machines is the position of the Power button. The sequence for sizing the modules is the same.
It is important to set the size switch setting into the Motor Controller’s memory whenever a replacement Motor Controller and or IW Display Module is fitted to Smartdrive. Failure to do this will result in Smartdrive faulting with fault code 9.  Accessing size setting mode is the best way to check the size for GW & MW. The size setting of Smartdrive may be checked in Diagnostic mode for all phases.  To set the size switch turn the power on at the power point and off at the console. Press and hold the TEMPERATURE UP button then press the POWER button. Smartdrive will give 4 short beeps and the pattern of LEDs will change.
One of the following buttons needs to be pushed to lock the size into memory.
> Press WASH TEMP UP button, the COLD LED is on for 5.5kg (560mm wide).
> Press WATER LEVEL UP button, the LOW WATER LED is on for 6.5kg / 7.0kg (600mm wide).
> Press SPIN SPEED UP button, the SPIN HOLD LED is on for 7.5 / 8.0kg (650mm wide).
> Press POWER to confirm the setting and also exit this mode.
If the size setting is wrong, Smart drive will have the following settings incorrect;
The Auto Water Levels chosen by Smartdrive may be wrong.
The High Water Level may be wrong by as much as 40mm.
The flow rate for inlet water, normally 3 litres per minute, may be set incorrectly.
The wash profile controls the strength of the agitator. This could result in poor wash performance or splash over.
Water saver settings.
IW Size setting
To set the size, turn the power on at the power point and off at the console. Press and hold the FABRIC CARE button, then press the POWER button. This will present a set of options in the LCD screen.  The LCD screen has within it a number of options. Push the Adjust button to highlight the appropriate machine size. Pushing the POWER button will lock the “size” into the module’s memory.  
DIAGNOSTIC MODE
MW (Pride)
Turn the power on at the power point but off at the machine. Press and hold the WASH TEMP DOWN button and then the POWER button until the machine gives 2 short beeps and lights up. Release the buttons when the beeps indicate diagnostic mode has been entered.  [The power button is now located in the centre of the Console or left hand side of the panel, not on the right hand side as with all previous MW / GW Smart Drive machines.  Last fault can be found by pressing the SPIN SPEED UP button three times. The HOLD and SLOW lights should be illuminated. Binary can then be read from the wash progress lights.
For testing the pump, press the Smart Touch button under Regular (Pride) activates the regular light, and turns on the pump. Holding the button down keeps the pump going.
GW (Excellence)
Diagnostics can be entered in the same sequence as MW machines.  Press the Regular button on the GW panel to activate the pump, hold down to keep the pump going. 
IW (Intuitive)
The DIAGNOSTIC MODE in the IW (Intuitive) incorporates both tests for the drain pump and the water valves, and also the data display mode. 
To enter the DIAGNOSTIC MODE, turn the power on at the power point and off at the console. Press and hold the LIFECYCLES button and then the POWER button.  The machine will give 2 short beeps and the LCD screen will go blank. Then press OPTIONS for data retrieval.
[Make sure that the buttons are released after the beeps, or the machine will turn itself out of the diagnostic mode.]
WARNINGS
There are a number of warnings which are generally caused by the user or poor installation. These warnings should be corrected by the user. Smartdrive signals user warnings by flashing LEDs and a rippling set of 5 beeps repeated every 6 seconds. This is the same tone that is heard when Smartdrive is first plugged into the mains power. Some warnings are indicated by the wash progress LEDs flashing and no user warning tone, (Restart or Recycle mode). Most of this information is available to the user in the ‘Use and Care Manual’
Insufficient Hot Water (Hot Water LED flashing)
This warning is indicated by the hot water LED flashing. Smartdrive will also be making a rippling set of 5 beeps repeated every 6 seconds. The hot water is not connected or the water temperature is too low. NB. This warning mode does not cause the product to PAUSE.
 > Check that the hot water is connected and that the tap is turned on. If your product is set for 'controlled cold' hot water may still be required for a cold wash.
> Check that the water temperature is not too low. The water temperature may need to be 60oC for a hot wash.
> Check that the hot water inlet is not connected to the cold water supply.
> Check that the filter on the hot inlet hose is not blocked.
> Motor Controller.(Phase 1 to 4). Thermistor (Phase 5). The temperature sensor has failed. Replace motor controller.(Phase 1 to 4) Check the resistance of the thermistor.  Resistance is 12.5k ohms at 20oC. Replace if faulty. (Phase 5).
> Check the size is set correctly.
 [It is possible to get this warning when washing with cold water if the cold wash temperature is set at 20oC or more. Wash temperatures may be adjusted]
Insufficient Cold Water (Cold Water LED flashing)
This warning is indicated by the cold water LED flashing. Smartdrive will also be making a rippling set of 5 beeps repeated every 6 seconds and the product will be paused. The cold water is not connected or the flow rate is too low. 
> Check that the cold water is connected and that the tap is turned on.
> Check that the flow rate is not too low. The product requires a minimum flow rate of 3 liters per minute. Check that the filter on the cold inlet hose is not blocked. If the installation has a flow rate below 5 liters per minute the flow may be improved by using large bore inlet hoses p.n. 426123.
> Taps may be connected the wrong way round.
> Cold water temperature exceeds 35oC. NB. Phase 2-4. If cold water temperature exceeds 40oC high purge motor controllers are available.  Contact your ASC’s.
> Phase 1-4. Motor Controller. The temperature sensor has failed. Replace motor controller.
> Phase 5. Thermistor. Check the resistance of the thermistor. Resistance is 12.5k ohms at 20oC. Replace if faulty.
> Check the size is set correctly.
No Water (Both Hot and Cold Water LEDs flashing)
This warning is indicated by the cold and hot water LEDs flashing. Smartdrive will also be making a rippling set of 5 beeps repeated every 6 seconds and the product will be paused.
> Check that the taps are turned on.
> Check that the inlet hoses are connected.
> Check that the flow rate is not too low. The product requires a minimum flow rate of 3 liters per minute. Check that the filters on the inlet hose are not blocked. If the flow rate is always low then fit large bore inlet hoses.
> Check that the hot water is connected and that the tap is turned on. If your product is set for 'controlled cold' hot water may still be required for a cold wash.
> Siphoning. Check the drain hose is not installed too low and is siphoning.
> Check the size is set correctly.
Overloaded Product (High Water LED flashing)
This warning is indicated by the high water LED flashing. Smartdrive will also be making a rippling set of 5 beeps repeated every 6 seconds and the product will be paused. The product is overloaded.
> Check that the product is not overloaded. This is more likely on a smaller size product. Also it may be that the user has selected the wrong water level this is more likely to be a LW or MW which only has 3 water levels.
> Check that the rotating bowl assembly is not jammed to the agitator with any foreign object that may be caught under the agitator skirt.
> Check that the clutch teeth are not locked together with dirt, detergent or lint. Check that the teeth are not broken.
Out of Balance (First Rinse or Final Spin and Current Spin Speed LED is flashing)
This warning is indicated by a rinse or spin LED and the current spin speed LED flashing.  Smartdrive will also be making a rippling set of 5 beeps repeated every 6 seconds and the product will be paused.  
Generally this can be caused by a large load. Smartdrive will normally manage to redistribute the load and spin. Under exceptional circumstances the user may need to redistribute the wash load manually once the bowl is stationary.
> Check that Smartdrive is correctly installed, is level and does not wobble.
> Check the bias spring is fitted between the wrapper and the outer bowl.
> Check the OOB lever, switch and bracket.
> Check the switch operates correctly with a multimeter. Resistance should be less than 2 ohms.
> Check the suspension is not catching or bouncy.
> Check both balance rings on the inner bowl contain water.
> The Motor Controller, (Display for Phase 1) should only be replaced if fault code 43.
Suds (First Rinse LED is flashing or Final Spin LED is flashing)
This warning is indicated by a rinse or spin LED flashing. Smartdrive will also be making a 'rippling sound of 5 beeps repeating every 6 seconds' and the product will be paused. Too much Detergent has been used and Smartdrive has a suds build up.
> This is generally caused by too much detergent. Wait for suds to dissolve then rinse clothes using a deep rinse.
> Check that the pump is not partially blocked, or that the drain hose is not kinked.
Restart and Recycle (Wash Progress LEDs flashing)
During normal operation restart is on and recycle is off. If either of these are in the wrong state the wash progress lights will flash when the power button is off, (but not in standby).  It may indicate that the user has inadvertently set the product into the wrong mode. In this mode there are no beeping sounds.  If restart is OFF the 5 leftmost wash progress LEDs are flashing. There should be no noticeable effect of this on Smartdrive, except that it is more likely to fault. Set Restart back to ON.
If recycle is ON the 3 rightmost wash progress LEDs are flashing. In this mode Smartdrive will be continuously doing cycles! Set recycle to OFF.  This can normally be resolved by powering off Smartdrive.
If this does not resolve the problem, RESTART or RECYCLE is set in the EEPROM memory. To reset, a similar key press sequence similar to Diagnostic mode is required as follows:
Phase 4 & 5
> Enter Diagnostic Mode. Turn the power on at the power point and off at the console.  Press and hold the WASH TEMPERATURE DOWN button then press the POWER button. Smartdrive will give 2 short beeps.
> From Diagnostic mode use the WATER LEVEL DOWN button to turn RESTART on.  The LOW WATER LEVEL LED on indicates RESTART ON. Use the WATER LEVEL UP button to turn RECYCLE off. The MEDIUM WATER LEVEL LED off indicates RECYCLE OFF. To set these modes in EEPROM the Advance button must be held while selecting Restart or Recycle. Power off Smartdrive.
Phase 1 to 3
> Turn the power on at the power point. Press the Power button to power up Smartdrive.  Press and hold the REGULAR button then press the ADVANCE button.
> Use the WATER LEVEL DOWN button to turn RESTART on. The LOW WATER LEVEL LED on indicates RESTART ON. Use the WATER LEVEL UP button to turn RECYCLE off. The MEDIUM WATER LEVEL LED off indicates RECYCLE OFF. Power off Smartdrive.
Demonstration Mode (All LEDs flashing in patterns)
This feature is designed for in store demonstration purposes. Smartdrive can draw attention to itself with a selection of flashing LEDs. In this mode Smartdrive cannot be started. To Select DEMONSTRATION MODE press and hold the ADVANCE button, then press the POWER button.  During the DEMONSTRATION display the LEDs will alternate between all on, LEDs flashing, and all LEDs off. To return Smartdrive to normal operation, the mains supply must be switched off. Some Phase 1-3 displays may inadvertently go into this mode if affected by condensation.  
Smartdrive Diagnostic Table
To use this table, firstly enter Diagnostic Mode. The different levels of information can be extracted by using the Spin Speed up and down buttons.
CLICK ON THE PICTURES TO MAGNIFY

FISHER AND PAYKEL DEIX1 AA WW - INTUITIVE DRYER – FAULT DIAGNOSIS AND FAULT CODES DETAILS

Fisher and Paykel DEIX1 AA WW - Intuitive Dryer – Fault Diagnosis and Fault codes details


 Overview If a fault occurs that prevents correct operation of the dryer, and is detected by the controllers, the dryer is stopped, the LCD shows a fault code and the beeper is continuously turned on and off.
Pressing any button once will disable the beeping. The fault code information will remain on the LCD screen until the power supply to the dryer is turned off.
If the Dryer has been either turned off or isolated from the power supply the fault code can be recalled from memory by entering diagnostic mode.
If Start/Pause is pressed while the fault code is displayed the beeping will stop and the optical download is activated.
Warnings
In the case of User Warnings, the LCD screen will display the User Warning and the beep tone will change from a continuous tone to a musical series of beeps, which are repeated every 5 seconds.
Depending on the nature of the User Warning, the operation of the dryer may cease or continue to ‘limp on’ until the cycle finishes or the user intervenes.
Pressing the Power button when a User Warning is displayed will immediately turn the dryer off.  User Warnings are saved to memory as Fault Codes, and the last Fault Code will be permanently stored.

The warning will also be recorded in the Warning Status screen. 
The information on this screen will only be stored for as long as power is supplied to the dryer. When the dryer is isolated from the supply the information in this screen will be erased.
Fault Code Summary
The following are the fault codes that may be displayed. The remedy section of each fault is the suggested sequence of repair or replacement. If the first suggestion does not remedy the fault.
Fault Code 1 Communications Error.
Communications failure between the sensor module and motor control module.
Remedy:
(1) Check the continuity of the module interconnecting harness.
(2) Replace the sensor module.
(3) Replace the motor control module.
Fault Code 2 Drum Gap Cannot be Located.
Remedy:
(1) Ensure the sensor module is correctly located and clipped into place.
(2) Replace the lens on the sensor module.
(3) Replace the sensor module.
(4) Remove the top deck and clean the drum sensing “bumps” on the outside of the drum end.
(5) Replace the drum.
The information on this screen will only be stored for as long as power is supplied to the dryer. When the dryer is isolated from the supply the information in this screen will be erased.
Fault Code 3 Drum Stalled.
Remedy:
If there is mechanical movement of the drum, but this fault code is appearing, follow the procedures for fault code 2.
(2) If there is no mechanical movement of the drum, checks drum movement mechanisms: belt, motor and motor harness.
(3) Replace the motor control module.
(4) Replace the motor.
Fault Code 4 Invalid Option Link Read.
The motor control module heat source option link read is invalid.
Remedy: Replace the motor control module.
Fault Code 6 Door Jammed – (User Warning).
The door is unable to close due to either clothes catching or an excessive closing load.
Remedy:
Remove the obstruction.
(2) Reposition or remove some of the load.
(3) Fix the cause of binding in the door closing mechanism.
(4) Replace the motor.
Fault Code 7 Motor Current Excessive.
Remedy:
(1) Free up the dryer. Remove overload or cause of jamming.
(2) Replace the motor control module.
(3) Replace the motor.
Fault Code 7b Display Module RAM Check Error
On power up, the display has checked its memory against a known reference and found differences.
Remedy: Replace the display module.
Fault Code 8 Exhaust Sensor Over Temperature.
The exhaust sensor measures over temperature (element short circuit or low resistance).
Remedy:
Check the integrity of the sensor circuit checking particularly for short circuits.  Approximate resistances (+ 10%) at various temperatures are; 0oC = 33 kOhms, 22oC = 11 kOhms, 40oC = 5 kOhms. Replace thermistor and harness
if out of range.
(2) Check the element integrity in that it switches off when the dryer is stopped.
(3) Replace the motor control module.
(4) Replace the sensor module.
Fault Code 9 Exhaust Sensor Under Temperature.
The exhaust sensor measures under temperature (open circuit or not plugged in).
Remedy: Refer to steps for over temperature fault (fault code 8) above, but open circuit likely.
Fault Code 10 24 Volt Supply Measurement Error.
The sensor module measures low voltage on actuator power supply.
Remedy: Replace the sensor module.
Fault Code 11 Lid Lock Open Circuit.
Remedy: Check the lid lock harness and coil. If there is continuity through these, replace the sensor module.
Fault Code 12 Lid Lock Switching Device Failure.
Remedy: Check that there are no short circuits in the lid lock circuit which may have caused the failure in the sensor module. The resistance of the lid lock should be between 50 and 100 ohms. If the circuit is correct, replace the sensor module.
Fault Code 14 Sensor Module Fault.
Remedy: Replace the sensor module.
Fault Code 15 Sensor Module Fault.
Remedy: Replace the sensor module.
Fault Code 16 Airflow Restriction – (User Warning).
Airflow restriction.
Remedy: 
(1) Check that the lint bucket is empty and the filter is clear.
(2) Ensure that the exhaust duct is not restricted, blocked or kinked, preventing good airflow.
(3) Ensure that there is nothing inhibiting unrestricted airflow through the heater housing, through the drum, lint filter, lint collector and through the exhaust duct, and that the element has not shorted. If the dryer is located in a closet ensure there is adequate ventilation for air intake.
(4) Check that the voltage is not too high.
(5) Check for element shorts or low resistance.
(6) Replace the automatic thermostat.
(7) Replace the motor control module.
Fault Code 20 Door Actuator Stalled.
Remedy: As per fault code 21.
Fault Code 21 Door Actuator Required Excess Voltage.
Remedy: 
(1) Ensure there is no weight placed on the lid of the product (e.g. clothes basket). If so, remove the weight and retest.
(2) Inspect the installation, making sure that the cabinet sits evenly on the floor. If excess load is placed on the cabinet, it can cause the sub-deck assembly to twist.
(3) Inspect the front inside edge of the top deck for any signs of excessive inwards bowing as this can cause it to catch on the door grabber, resulting in excess current draw on activation. The bowing can be caused by a bowed top deck or by incorrect assembly of the top deck to the cabinet front.
(4) Ensure the user intervention tab is not inhibiting door grabber movement.
(5) Check that the actuator linkage is located correctly. There must be no gap between the linkage and the plastic moulding
(6) Check that the actuator housing is in place, and that the four retaining lugs are correctly located.   Early models may have aluminium tape holding the housing in place. If so, ensure that the tape is replaced when the housing is refitted.
(7) Remove the actuator housing and look for obvious signs of things that are out of position (can the worm drive be rotated freely both backwards and forwards by hand, is the actuator motor in place?)
(8) Replace the faulty door actuator mechanism.
(9) Replace the door grabber, linkage and housings.
(10) Replace the sensor module.
Fault Code 22 Door Actuator Open Circuit.
Remedy: (1) Check that the actuator wiring is plugged into the sensor module and is not open circuit. If faulty, replace.
(2) Replace the sensor module.
Fault Code 23 Door Actuator Movement Interrupted By Low Voltage.
The door actuator movement was interrupted by low voltage (brown out).
Remedy: 
(1) Ensure mains voltage is within +10% and –15% of nominal.
(2) Replace the sensor module, as voltage measurement circuit may be reading incorrectly.
(3) Replace the motor control module, as it may not be supplying sufficient power to the sensor module. When display is off, approximately 24V DC is supplied.
Fault Code 24 Door Actuator Movement Took Too Long.
Remedy: As per fault code 21.
Fault Code 28 Data Retrieval Error Following Loss of Power
Remedy: 
(1) Switch off the mains power supply to the dryer for at least 10 seconds and confirm error.
(2) Replace the motor control module.
Fault Code 29 Brown-Out Data Retrieval Error.
Remedy: 
(1) If the fault occurs every time the dryer is turned on, replace the sensor module.
(2) Replace the motor control module.
Fault Code 30 Lid Lock unable to Lock – (User Warning).
Reason: The lid lock failed to lock. (Not user displayed.)
Remedy:
(1) Ensure the lid is closed and the tongue engaged.
(2) Replace the lid lock harness.
(3) Replace the lid lock.
(4) Replace the sensor module.
Fault Code 45 Display Module ROM Check Error
On power up, the display has checked its memory against a known reference and found differences.
Remedy: Replace display module.
Fault Code 105 Comms Error Time Out
Communications failure between the sensor module and display module.
Remedy:
(1) Visually check the contacts on the RAST (edge) connector at each end on the harness between the sensor module and display module.
(2) Using a multimeter check for continuity of the wires on this harness.
(3) Replace display module.
(4) Replace sensor module.
Note: The green Air Dry LED illuminated without the fault “beeps” indicates the dryer is in a low mains voltage (brown out) state, and may be momentarily displayed when the supply power is turned off.

FISHER & PAYKEL DD603 - DD603H - DD603I - DD603IH - DS603 - DS603H DS603 I - S603IH - DD603M DD603HM - DS603M - DD603H - DISH-DRAWER TROUBLESHOOTING

Fisher and Paykel Dish-Drawer DD603HM - DD603IH - Troubleshooting

Fisher & Paykel DD603 - DD603H - DD603I - DD603IH - DS603 - DS603H DS603 I - S603IH - DD603M DD603HM - DS603M - DD603H - Dish-Drawer Troubleshooting.
 
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-galvanized material called Galvoclean.
Unlike most other dishwashers, the chassis assembly is a load carrying structure designed to impart stiffness to the product and to ensure deflection is minimized.
The feet of the Double cabinet are assembled into the chassis by means of four steel inserts which are clinched in place to form a permanent threaded connection.  The tub extends 520mm (2015/32”) out of the cabinet by travelling along two rigidly attached slides on either side of the tub.
Drawer Fronts
Pre-finished drawer fronts are formed from a painted, brushed or Iridium finish stainless steel blank. The drawer fronts are attached to the tub by means of formed hooks and two pins which are inserted through either side of the tub.
On the integrated model, the front panel supplied on each drawer is the mounting panel for the joinery finished drawer front. The joinery finished drawer front is supplied by the customer.
Electronics
In the DD603/ DS603 (Phase 3) electronic controller the functions of controlling the motor as well as controlling the user interface console have been combined into a single 16-bit Micro Controller on the main printed circuit board.  This Micro controller also controls a transformer less 85w switch mode power supply. This power supply utilizes a large dropping resistor on the heater plate in conjunction with phase control of the mains voltage in order to produce a variable voltage rail. From this the controller can supply voltages from 5V to 85V to the various components in the Dish Drawer.
NOTE:- With power supplies of this nature all components regardless of supply voltage should be treated as live to earth. i.e = supply voltage.
The user interface comprises a printed circuit board for front controls and a touch switch panel for internal controls. The electronics can connect to a computer service tool via an optical light pen for fault finding and product information.  The element is switched by one single pole relay. Overheat protection is effected by a short length of solder in series with the dropper resistor track on the heater plate. In an overheat situation this solder melts causing the power supply to go open circuit.
Tub Home Sensor
A tub home sensor is used to determine when the tub is closed and it is safe to start a cycle. The tub home sensor consists of an inferred LED (sender) and an inferred transistor (receiver) mounted on the circuit board in the controller. Inferred light is  transmitted from the LED through an optical light pipe to the right hand side of the tub. The inferred receiving transistor also has an optical light pipe leading from it out to the side of the tub. When the tub is closed the two light pipes are optically connected via a prism mounted in the trim on the side of the chassis.
Touch Switches
Two touch switches are used on the secondary control panel one to select the required wash cycle and one to turn the Eco option on or off. They are capacitive touch switches and are supplied with an analogue signal from the controller that will change in the presence of an earthed mass (i.e. customer’s finger).
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.
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.
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 through the spray arm when the Dish Drawer is filling with water. The Dish Drawer fill levels are more consistent with the flap valve system.
Wiring Cover
The wiring cover protects the customer from all electrical components in the motor area underneath the tub. All electrical components regardless of voltage should be treated as live with respect to earth. It also serves to protect the motor assembly, drain and fill hoses from damage when opening and closing drawers. The wiring cover acts as a cosmetic part of the product.
Lid System
Lid Operation
The lid is a single piece of polymer plastic with a static seal co-injection moulded into it. Each side of the lid is clipped into a yoke which is in turn connected to a worm drive lid actuator assembly containing a small brushed DC 24V motor.
When Activated
At the beginning of each wash cycle, both motors are powered for approximately 10 seconds, which pulls the lid down onto the tub in approx 5 seconds. The lid remains down for the duration of the cycle and is only lifted when the Dish Drawer beeps to signal the end of the cycle or if the customer pauses it to gain access to the tub.
During a Power Failure
If power to the Dish Drawer fails with the lid down you can still force the tub open manually if access is required. It is very difficult however to close the tub again without lifting the lid. The lid can be wound up manually with the tub fully removed. Failure to raise the lid before closing the Drawer could result in the lid seal being damaged.
Tub.  The tub is the main cavity where all the wash activity occurs. The tub is a polymer plastic receptacle which has a wash pump and spray arm at the base. The tub also has guide vanes around its walls which direct falling water from the wash cycle in a clockwise direction around the filter plate. This clears the filter plate of food particles into the sump where they can be trapped or pumped out during the drain cycle.
Filling
Water Inlet
The tub of the Dish Drawer fills by a single water inlet hose, hot water connection for USA and Japanese products and cold water connection recommended for the Australasian/UK/ Europe products. From the connection to the water supply in the kitchen, the inlet hose enters the cabinet of the dishwasher at the base, onto a dual water valve.  Each tub is supplied water independently via one of the dual valve coils and a fill hose that runs through a customized link assembly at the back of each tub and travels along the base of the tub under the wiring cover to the front. At the front of the tub, the fill hose connects to the detergent dispenser which allows water to enter the tub, firstly through the pre rinse section of the dispenser for the pre rinse cycle and secondly through the main wash section for all other cycles.  In a product fitted with a water softener, water is directed through the softener before entering the dispenser.
Dispensing Detergent and Rinse-aid
The dispenser is mounted in the front wall of the wash tub.  The detergent dispenser consists of two detergent chambers, one for pre wash and the other for the main wash.  The detergent dispenser door is opened manually for detergent loading and then manually closed ready for the detergent to be transported to the wash tub by the inlet water. To enable each detergent chamber to be dispensed separately, an inlet water diverter valve controlled by the electronics is required.  Additionally a positive displacement pump unit and storage tank are incorporated within the dispenser to supply rinse aid. The rinse aid dispensed volume can be adjusted by the customer in option adjustment mode. A glowing red light on the tank filler cap indicates an empty rinse aid tank.
Amount of Water
The tub fills with approximately 2.5 liters / 0.8 US gallons of water, approximately level with the base of the spray arm. Once this level is reached, the wash pump (which has sensed the fill via the electronics) becomes primed and pumps the water through the spray arm which will then rotate. The load on the wash pump is constantly monitored throughout the wash cycle and the water level adjusted if necessary.
Heating
The Element
The heater plate is an element consisting of porcelain enameled steel plate with a thick film resistive circuit printed onto the dry side. As well as the heating circuit a large dropping resistor is also printed onto the heater plate which forms part of the controllers power supply. The element is clamped in place by a locking nut and supports the motor at the base of the tub.
Heating the Water
The heater plate lies beneath the filter plate. A flow through water heating system is created during the wash cycle by allowing water to flow through the filter plate, over the surface of the element and into the wash pump.
Maintaining the Temperature
Attached to the element is a sub printed circuit board with a temperature sensitive thermistor. This connects by means of a RAST 2.5 connector system to the wiring harness of the element. Sensor components are unserviceable and if they fail a new heater plate is required.
Overheat Protection
The heater plate is only activated during the wash cycles. It is not used for drying. The temperature is maintained by the thermistor. If a failure occurs with the electronic control of the heater plate, overheat protection is effected by a thermal fuse on the heater plate itself.  The thermal fuse consists of a short length of solder in series with the dropper resistor track which will melt at a relatively low temperature, 268 – 302oC (514 – 576oF) causing the controllers power supply to go open circuit disconnecting power to the element.
Lockring Nut
The lock-ring 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 locking nut is to support the wiring cover with three clips.
Drain Cycle
The drain pump is a self priming centrifugal pump which only pumps when the motor is rotating in the drain direction (anti-clockwise). It has a five bladed impellor pushed into a spline on the end of the rotor shaft.  The drain pump housing, which incorporates an inlet and outlet pipe, is welded to the motor housing, hence captivating the motor.  The inlet pipe plugs straight into the sump and is sealed there by a small ‘O’ ring.  The outlet pipe has a non return flap valve to prevent soiled water returning to the tub.  The drain hose is an extruded blow mould hose which is routed over the link assembly and exits out of the base of the product and is connected to a domestic drain.  The drain speed during the wash program is approx. 4200 rpm. In hardware output diagnostics test mode it is approx. 5000 rpm. This can account for draining OK in diagnostics but not during normal operation.
Filter Plate
The filter plate is a stainless steel disk which lies below the dish rack and spray arm and completely encompasses the base of the tub.
The Filter System
The tub is designed with vanes which swirl the water around and over the filter plate. At the front of the tub, located as part of the filter plate, is the drain filter. Large soils collect in the drain filter and only smaller soils flow through its micro mesh filter, eliminating re-depositing of soil during the wash. The drain filter should be regularly checked and cleaned.
Removing and Cleaning the Filter Plate
The drain filter can be emptied with the dish rack in place by removing the cutlery basket and opening the plastic section of the dish rack. The filter plate is removable for cleaning by removing the dish rack and spray arm and unlocking the lockring nut anti-clockwise.
Drying Cycle
Immediately after water from the final hot rinse has been drained from the tub, the drying system begins operation. The drying fan draws air through from the vent in the rear of the tub, where it absorbs water from the dish load. The moisture laden air is then mixed with a larger quantity of ambient air (from the kitchen), to minimize the amount of vapor visible when exiting from bottom of the drawer front.  The fan runs continuously during the drying cycle and will restart if the tub is opened and closed again. After the wash program is complete, the lid drives up, and the fan continues to run for 30 minutes, but will not restart if the tub is opened.
Water Softener (where fitted)
The Water Softener uses a softening material (resin) to prevent most of the elements that cause hard water from being present in the wash water. The resin can only treat a limited amount of water before it needs to be regenerated. Regeneration is achieved by pumping salty water (brine) through the resin, and flushing away the hard elements to the drain. The process of delivering softened water and regeneration is controlled by the Electronic Controller.  Delivering Softened Water:- Supply water arrives from the inlet valve. In the water softener it passes through a piper interrupter (air break) and a diverter valve. It is then either directed through the resin to the dispenser, or directly to the dispenser, then into the tub. The electronic controller measures the volume of water treated, and adds an appropriate amount of non-treated water, to deliver a mix which is at the required hardness according to a predetermined schedule. Water is treated according to its supply hardness. The customer is able to select one of 5 settings in option adjustment mode.  Regeneration:- Regeneration is triggered when the amount of water that has been treated since the last regeneration nears the capacity of the Water Softener. The quantities treatable for each of the 5 settings of supply hardness have been predetermined, and are stored in the electronic controller. When triggered, immediately after filling for the main wash, the brine pump is activated and delivers a volume of salty water into the resin, at an amount appropriate to the hardness setting. When the wash cycle finishes, the resin is flushed with supply water, and the by-products of regeneration are delivered into the wash water, and drained with it away to waste. Normal treatment of incoming water then resumes.  Salt:- the customer is required to fill the salt tank with dishwashing salt from time to time. Salt is used in the water softener by mixing it with water to produce the salty water (brine) used in regeneration. When the salt level is low, a salt level detector causes a glowing red light to appear in the salt bung, and a “Salt” symbol appears in the LCD.  When this happens, the customer should remove the salt bung, and using the salt container provided, pour salt into the salt reservoir until salt can be seen at the opening. The “Salt” symbol on the LCD will disappear and the red light will not be visible when the salt tank bung is replaced. In areas where the supply water is moderately hard (21 dH – degrees of hardness, 375ppm – parts per million, Water Softener Setting 3) the salt reservoir will need to be filled about once a month, and in harder areas more frequently. Delivery of treated water from one fill of the salt reservoir:
240 litres at 30 – 100 ppm from 375 ppm supply water
144 litres at 30 – 100 ppm from 625 ppm supply water

DISH DRAWER – FISHER AND PAYKEL DS603 I DS603IH – OPTION ADJUSTMENT – FAULT DIAGNOSTIC AND WIRING DIAGRAM

Dish Drawer – Fisher and Paykel DS603 I DS603IH – Option Adjustment – Fault diagnostic and Wiring Diagram

Fisher&Paykel - DD603 DD603H - DD603I DD603IH - DS603 DS603H - DS603 I DS603IH - DD603M DD603HM - DS603M DD603HM
 
OPTION ADJUSTMENT MODE
How to Change Setup Options
Rinse Aid / Water Supply Hardness / Auto Power / End of Cycle Beeps / Closed Drawer Option / Clean/Dirty Dish Symbol /Dry Enhancement Option
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. By pushing the Start/Pause button you can scroll through and change the following options:-
Rinse Aid Setup (rA)
Water Supply Hardness Setup (hd)
Auto Power Option (AP)
End of Cycle Beeps (EC)
Closed Drawer Option (Ld).
Clean/Dirty Dish Symbol (dS)
Dry Enhancement Option (LH)
Integrated:- On an Integrated DishDrawer, where there is no display, you can still tell which option you 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)
Auto Power Option (orange light above Start/Pause button)
End of Cycle Beeps (green light above Start/Pause and red light above Keylock) button)
Closed Drawer Option (red light above Start/Pause and Keylock buttons)
Clean/Dirty Dish Symbol (not available on Integrated models)
Dry Enhancement Option (orange light above Start/Pause button, Eco light is red)
Push Power at any time to exit this setup mode.
Rinse Aid Setup (rA)
The current rinse aid setting is shown using the red 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 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.
Integrated: On an Integrated DishDrawer when you turn on or turn off one of the following options it is indicated by the red wash cycle LEDs on the secondary control panel. If an option is turned on then all the LEDs turn on and if an option is turned off all the LEDs turn off.
Water Supply Hardness Setup (hd)
The current supply hardness setting is shown using the red LED’s on the touch switch panel. One of 5 settings should be selected according to the known hardness of the supply water. Each setting is appropriate for the following water supply hardness:
No. LED Water Softener turned off, continuous bypass of softener
1 150-250 ppm water supply hardness
2 250-350 ppm water supply hardness
3 350-450 ppm water supply hardness
4 450-550 ppm water supply hardness
5 550-625 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.
Auto Power Option (AP)
The automatic power up sequence that occurs when the tub is opened can be turned on or off using the Keylock button. If the Scrubbing Brush is showing on the LCD then the auto power up sequence will occur when the tub is Opened. If the Scrubbing Brush is not showing then the DishDrawer will not automatically power up when the tub is Opened (the customer will need to push the power button each time they wish to use the DishDrawer). Push Power to exit when the desired setting has been selected.
End of Cycle Beeps (EC)
The six beeps that occur at the end of every cycle can be turned on or off using the Keylock button. If the Scrubbing Brush is showing on the LCD then the end of cycle beeps are activated. If the Scrubbing Brush is not showing then the end of cycle beeps are deactivated. Push Power to exit when the desired setting has been selected.
Closed Drawer Option (Ld)
The Closed Drawer Option can be turned on or off using the Keylock button. If the Scrubbing Brush is showing on the LCD then the Closed Drawer Option is selected and it will keep the DishDrawer locked at all times by bringing the lid down. When this mode is selected the customer needs to push the power button to lift the lid whenever they want to open the drawer. When they close the drawer again the lid comes down automatically after 30 seconds and locks the tub. If the Scrubbing Brush is not showing then the Closed Drawer Option is deactivated.
Clean/dirty Dish Symbol (dS)
(not available on integrated models)
The Clean/dirty dish symbol can be turned on or off using the keylock button. If the Scrubbing Brush is showing on the LCD then the Clean/dirty dish option is selected. This means that the end of cycle clean dishes symbol will remain in the LCD display until the power button is pressed to clear it. If the Scrubbing Brush is not showing then the Clean/dirty dish symbol will disappear when the drawer is first opened at the end of a cycle (factory setting).
Dry Enhancement Option (LH)
Dry Enhancement Option can be turned on or off using the keylock button. If the Scrubbing Brush is showing on the LCD then the Dry Enhancement Option is selected.  This means the lid will stay down and the drying fan will continue running for 4 hrs after the wash program completes.  If the customer wishes to open or stop the DishDrawer during this 4 hr period, they can do so by pushing the POWER or START / PAUSE button. This will reset the feature until the end of the next wash program.
Option Adjustment Quick Reference
Rinse Aid Setting (rA)
(alter the amount of rinse aid dispensed)
Press and hold Eco, then Keylock for 5 seconds.  rA will be displayed (integrated: Red LED above start/pause button showing)
Press keylock
The rinse aid setting will advance on the secondary control panel LEDs with each press
Press Power
Will exit & save selected setting.
Water Softener Supply Hardness Setup(hd) (where fitted)
(alters the Water Softener setting depending on Water Supply hardness)
Press and hold Eco, then Keylock for 5 seconds
RA will be displayed
Press Start / Pause once
Hd will be displayed (integrate: Green LED above Start / Pause Button showing)
Press Keylock
The Water Softener setting will advance on the Secondary Control Panel LED’s with each press.
Press Power.
Will exit and save selected settings.
Auto Power Option (AP)
(powers up automatically when the drawer is opened)
Press and hold Eco, then Keylock for 5 seconds
rA will be displayed
Press Start/Pause Twice
AP will be displayed (integrated: Orange LED above start/pause button showing)
Press Keylock
Turns Auto Power on & off. Scrubbing brush or secondary control panel LEDs showing = AP on, Scrubbing brush or secondary control panel LEDs not showing = AP off
Press Power
Will exit & save selected setting
End of Cycle Beeps (EC)
(six beeps at the end of every cycle)
Press and hold Eco, then Keylock for 5 seconds
rA will be displayed
Press Start/Pause Three Times
EC will be displayed (integrated: Green LED above start/pause button showing)
Press Keylock
Turns end of cycle beeps on & off. Scrubbing brush or secondary control panel LEDs showing = EC on, Scrubbing brush or secondary control panel LEDs not showing = EC off
Press Power
Will exit & save selected setting
Closed Drawer Option (Ld)
(lid closes automatically every time the drawer is closed)
Press and hold Eco, then Keylock for 5 seconds
rA will be displayed
Press Start/Pause Four times
Ld will be displayed (integrated: Red LEDs above start/pause & keylock buttons showing)
Press Keylock
Turns closed drawer option on & off. Scrubbing brush or secondary control panel LEDs showing = Ld on, Scrubbing brush or secondary control panel LEDs not showing = Ld off
Press Power
Will exit & save selected setting
Clean/Dirty Dish Option (dS)
(clean dishes symbol stays on at end of cycle until cleared by pressing power)
Press and hold Eco, then Keylock for 5 seconds
rA will be displayed
Press Start / Pause Five times
dS will be displayed (not available on integrated models)
Press Keylock
Turns clean/dirty dish option on & off. Scrubbing brush showing = dS on, Scrubbing brush not showing = dS off
Press Power
Will exit & save selected setting
Dry Enhancement Option (LH)
(lid down and fan run-on for 4 hrs at the end of the cycle)
Press and hold Eco, then Keylock for 5 seconds
rA will be displayed)
Press Start / Pause Six times
LH will be displayed (orange light above start/pause, ECO light is red)
Press keylock
Turns the Dry Enhancement Option on / off. Scrubbing brush symbol on = LH on.
Press Power
Will exit & save selected setting
DIAGNOSTICS
DishDrawer Diagnostics
DishDrawer 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 5 seconds. Ensure that Keylock is pushed first.  There are currently four levels of diagnostics. To move to the next level push Power. To enter a level push Start/Pause. Once a level has been entered, pushing Power will exit diagnostics completely. If no level is entered then the display will cycle through the four levels and exit after the last. On entering diagnostic mode the first level is the Display/Download Mode.
Display / Download Mode
In this mode all LED’s and LCD segments (except keylock) are illuminated.
Optical LED Download / Fault Display
An optical data download is available here to download all EE data to a PC or Palm PC via the lower tub-home sensor light pipe. Hold the reader pen over the lower tub-home sensor light pipe and press Start/Pause to initiate the download. A short beep indicates the start and finish of download.  In products manufactured before MEM741743, 21/5/03, the last two faults are displayed on the LCD (secondary control panel LEDs for integrated models) during the optical download; the Current Fault code is displayed first followed by the Previous Fault Code. To read the Fault Code on the secondary display for integrated and prefinished products after MEM741743.
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 level.
Hardware Output Diagnostic Test Mode
This level tests all the hardware outputs and inputs. The LCD display shows ‘HO’.
Press Power to skip hardware diagnostics and advance to the next level.
Press Start/Pause to enter hardware diagnostics.
Once hardware diagnostics has been entered letters in the LCD display indicate the current hardware output being tested and for integrated models the LEDs on the touch switch panel, using binary encoding, as shown in the table on the next page.
Different combinations of outputs can be switched on or off together but the controller will prevent higher current drawing components such as the wash pump and the lid motors being turned on together.  Press Start/Pause to advance to the next hardware output.  Press Keylock to turn the currently displayed output On or Off. If the scrubbing brush symbol (green LED above
start/pause button on integrated models) is displayed then that output has been switched on, and if it is not displayed then that output is off.
Press Power to Exit at any time (All outputs will be switched off on exit).  As mentioned above the LCD display and touch switch panel LED’s are illuminated to correspond to a particular hardware device. The following table details the display order of the test.
WARNING : In diagnostic mode there is no component protection. Therefore take care when running individual components not to overload them. It is advisable to avoid turning the element on without filling the tub with water first.
NB : No Fault codes will come up while in diagnostics mode.
Tub Home Sensor Test: At any time during HO test mode the Keylock symbol on the LCD display (Keylock LED n integrated badge) indicates the tub position. On = Closed, Off = Open.
Fast Test Cycle
WARNING : only run this cycle if connected to the water supply
This level runs a 5 minute fast test cycle.
Press Power to skip Fast Test Cycle and advance to the next level.
Press Start/Pause to enter Fast Test cycle.
Once Fast Test Cycle is selected the DishDrawer goes into standby mode and 5 minutes will be showing on the display. The test cycle is started by pushing Start/Pause and the following components are run during the 5 minute cycle that follows:- Lid motors, fill valve, wash motor, element, drain motor.
Press Power to Exit at any time.
Continuous Cycle Test Mode
In this level the DishDrawer can be run continuously in any wash cycle. Once the cycle has finished, the DishDrawer automatically restarts the same wash cycle.
Press Power to skip Continuous Cycle. As this is the last level, doing this will exit diagnostics.
Press Start/Pause to enter Continuous Cycle.
Once selected the LCD backlight flashes on and off to indicate the DishDrawer is in continuous cycle and the cycle starts straight away (for integrated models the LED above the start/pause button will be orange instead of green to indicate the DishDrawer is running in continuous cycle). It will run the last cycle that had been selected prior to going into diagnostics mode.  If you wish to run a different cycle you need to exit diagnostics turn the DishDrawer on as normal and select the cycle you want. Then turn the DishDrawer off again reenter diagnostics and restart the Continuous Cycle as above.
Press Power to Exit at any time.
Cycle Count Retrieval (not available on integrated models)
To display the cycle count on the LCD screen, pause the DishDrawer while running a Continuous Cycle. The two bytes of the cycle count will be displayed alternately, in syncronisation with the changing backlight.
The Low byte is displayed when the backlight is Off.
The High byte is displayed when the backlight is On.
To calculate the Total DishDrawer cycle count use the formula below.....
Cycle_Count = (200 x High_byte) + Low_byte.
Eg. Low_byte = 156
High_byte = 2
Cycle_count = (200 x 2) + 156 = 556.
Temperature & Voltage Display Mode (not available on integrated models)
During a wash cycle, the current water temperature or the power supply rail voltage of the controller can be displayed on the LCD instead of the time remaining. To enter temperature/voltage 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 display now alternates between a C symbol and the water temperature. Pressing the Start/Pause again changes the display to alternate between an E symbol and the power supply rail voltage of the controller.
To cancel temperature/voltage display mode, press the Power button.
Show Off / Showroom Wash Mode
This mode initiates a shop show off display and wash operation demonstration.
With the DishDrawer powered up and turned on the show off mode is entered by holding the Eco and Power buttons simultaneously for 5 seconds. Ensure that Eco is pushed first.
The DishDrawer is now in the Show Off mode and cycles through all of the LED & LCD segments while pulsing the LCD backlight on and off.
Pressing the Power button now puts the DishDrawer into the Showroom Wash mode. Before running this mode the tub should be filled with water until it is just touching the underside of the spray arm. The Showroom Wash is started by pushing the Start/Pause button whereby the following cycle is run:-
The lid is pulled down
The wash motor starts and runs for 4 minutes
The wash motor stops.
The lid is lifted The display counts down to zero throughout this cycle The DishDrawer turns off at the end of this cycle. The DishDrawer is still in the Showroom wash mode however and it can be re-run by pushing Power and then
Start/Pause. Once Show Off/Showroom Wash mode has been initiated, the mains power must be removed to exit out.
WIRING DIAGRAM