WESCO NAVY WMA504EP, Руководство пользователя, Страница: 125 / 186

8.7. PROBLEM CHECK LIST
85
Problem Cause Solving the problem
When the power is switched on :
the display is not illuminated
•
no external power
•
the emergency button is activated
•
the power connector is not connected
on the board
•
the power connector is inverse
connected
•
the fuse on the wash computer has
burned
•
disconnect the input connector A & B
•
The connector between the CPU and
the I/O board of the wash computer is
either absent or incorrectly pushed in.
•
Switch on the external power supply
•
verify the external power to the machine
•
deactivate the emergency button
•
connect the power connector
•
check the wiring and connect the
connector as it must be
•
if the transformer is broken replace the
wash computer
Check the wiring and the voltage at the
power Connector
If the transformer is still OK change the
Fuse
•
if the display is lighting up:
verify if the input signals or the +16Vdc
Supply Signal are touching the cabinet
The display is illuminated, but it’s
difficult to read the text on the display.
•
the brightness is not Ok
•
Change the value for Brightness, Viewing
Angle in the Configuration Menu until you
get a bright display.
The display just shows “Bootloader” but
the application does not run.
•
There is no SW loaded in the application
•
Load the application software from the
USB flash drive
The machine is not responding on
pressing the keyboard buttons
•
no button is functional
•
there is no beep signal when the
buttons are pressed
•
check if the connector „K“ of the keyboard
is well connected
•
check if the connector „K“ of the keyboard
is well connected
The coins have been inserted but the
price does not count down on the display.
•
The contact attached to the slot is not
functioning
•
The optical sensor attached to the
slot is not functioning
•
check the electrical wiring of the slot
•
Make sure that you entered the coin
value in the Payment menu
•
Check correct functioning of the slot
contact. Check that positive impulses are
generated
•
Check correct functioning of the optical
sensor. Check that positive impulses are
generated.
•
If the electrical connection is faulty, repair it.
•
Enter correct coin value in the Payment
menu
The machine is not behaving as
expected
•
if the wrong machine type is selected
the wrong outputs will be activated
•
check if the right machine type is selected
in the Configuration Menu.
A program is started, but the outputs
are not activated
•
check if connector „R“ is connected
•
connect the connector at the correct
position
Wait is displayed and a counter is
counting down
•
this is a wait state caused by a power
interruption or a safety sequence at the
end of the process
•
wait until the counter has reached 0
•
do not switch off/on the power again as
you will restart the counter
Unload is displayed and the Door is
Open
•
Check if the „Door Switch“ is still
closed
•
If the „Door Switch“ is broken, replace the
Door Switch“
Wrong water level
(the water level sensor must not be
calibrated)
•
check if the programmed water levels
are the correct ones
•
check if the right machine type is
selected in the Configuration Menu
•
you have changed the machine type,
but the standard water levels do not
change
•
set the right water levels
•
select the right machine type in the
Configuration Menu
•
the standard water levels can only be
reinitialized by programming new values or
by loading the Standard Wash programs
again.
The drum is not turning
(No error message will be generated)
•
Check if the belt is broken
•
Check the applied motor voltage
•
Check if the motor is still functional
•
Check the Inverter
•
Check the tension of the belt or replace
the belt
•
repair the motor power supply circuit
•
change the motor if needed
•
send a request for more info to the
manufacturer