PAGE 5
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DES
TROY
Unsuccessful Activation
If entry into Service Diagnostic mode is
unsuccessful, refer to the following indications
and actions:
Indication 1
: None of the indicators or display
turn on.
Action:
Select any cycle.
ÿ
If indicators come on, check the functionality
for the three buttons used to activate the
Service Diagnostic mode. Verify that the
button responds and a beep sound is heard
when pressed. If the button is faulty, it will
not be possible to enter the diagnostic mode
using that button. Replace the user interface
and housing assembly. Refer to Component
Removal on page 22.
ÿ
If no indicators come on after selecting the
cycle, go to TEST #1, CCU Power Check,
page 13.
Indication 2
: All console indicators begin
flashing immediately.
Action:
If all console indicators begin flashing
on and off immediately, replace the user
interface.
Activation with Saved Fault Codes
If there is a saved fault code, it will be flashing
in the display. Review the Fault/Error Codes on
pages 8–10 for the recommended procedure.
If there is no saved fault code, “
888
” will be
displayed.
USER INTERFACE TEST (Figures 1 & 2)
NOTE:
The Service Diagnostic mode must be
activated before entering the User Interface Test;
see procedure on page 4.
Active Fault Code Display
in User Interface Test
If the display begins flashing while in User
Interface Test, it is displaying an active fault
code. Active fault codes are codes that are
currently detected. Only one active fault code
can be displayed at a time.
Entry Procedure
Press and release the
1st
button used to
activate Service Diagnostic mode. All console
indicators turn on and “
888
” is displayed.
User Interface Test
Pressing each button will turn off its
corresponding indicator(s) or display segment
and sound a beep as shown in figures 1 & 2.
WHIRLPOOL: Rotating the cycle selector knob
turns off each corresponding cycle indicator.
MAYTAG: The cycle selector LED will turn off
after slowly rotating the cycle selector knob
through ALL of its positions
ÿ
If indicators do not turn off and beep after
pressing buttons and rotating the cycle
selector knob, go to TEST #2: User Interface
on page 14.
Exit Procedure
To exit User Interface Test, press and hold the
1st
button used to activate Service Diagnostic
mode for 5 seconds, or press the
POWER
button once or twice.
SOFTWARE VERSION DISPLAY
NOTE:
The Software Version Display mode will
time out after 5 minutes of user inactivity and
return to standby mode.
Entry Procedure
To enter Software Version Display, press
and hold the
2nd
button used to activate the
Service Diagnostic mode for 5 seconds. Upon
entry, the display will automatically cycle
through the following information:
t
UI software revision code (
u
: major
revision number, minor revision number,
test revision number)
t
UI Hex file revision code (
h
: major revision
number, minor revision number, test
revision number)
t
CCU software revision code (
c
: major
revision number, minor revision number,
test revision number)
t
CCU Hex file revision code (
h
: major
revision number)
t
MCU software revision code (
h
: major
revision number)
Exit Procedure
To exit Software Version Display, press and
hold the
1st
button used to activate Service
Diagnostic mode for 5 seconds, or press the
POWER
button once or twice.
