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March 2004 Manual 599082
- 20 -
5.0 DIAGNOSTICS
5.1 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.
5.1.1 Display / Download Mode
In this mode all LED’s and LCD segments (except keylock) are illuminated.
5.1.2 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, refer to Section 7.1 on Fault Codes.
5.1.3 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.
5.1.4 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.