PAGE 6
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
Unsuccessful Activation
If entry into 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.
If indicators come on, try to change the
function for the three buttons used to activate
the diagnostic test mode. If any button is
unable to change the function, something
is faulty with the button, and it will not be
possible to enter the diagnostic mode using
that button. Replace the user interface and
housing assembly.
If no indicators come on after selecting the
cycle, go to TEST #1, ACU Power Check,
page 12.
Indication 2: Console indicators begin flashing
immediately.
Action: If 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
table on page 10 for the recommended
procedure. If there is no saved fault code,
“888” will be displayed.
KEY ACTIVATION & ENCODER TEST
NOTE: The Service Diagnostic mode must be
activated before entering the Key Activation &
Encoder Test; see procedure on page 5.
Active Fault Code Display
in Key Activation & Encoder Test
If the display begins flashing while in the Key
Activation & Encoder 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.
The following test will be available:
DIAGNOSTIC: Key Activation
& Encoder Test
Pressing each button will turn off its
corresponding indicator(s) or display segment
and sound a beep (see figures 1a, 1b, or 1c,
pages 2–4).
Rotating the cycle selector knob (on some
models) turns off each corresponding cycle
indicator.
NOTE: A second press of the POWER button
while in Key Activation & Encoder Test mode
exits the Service Diagnostic mode and returns
the dryer to standby mode.
If indicators do not turn off and beep
after pressing buttons and rotating the cycle
selector knob (on some models), go to TEST
#6: Buttons and Indicators, page 22.
Exit Procedure
To exit Key Activation & Encoder Test, press
the POWER button once or twice (depending
on diagnostic procedure) or press and hold
the first button used to activate Service
Diagnostic mode.
SERVICE TEST MODE
NOTE: The Service Diagnostic mode must be
activated before entering Service Test Mode;
see procedure on page 5.
NOTE: If, at any point, the user presses the
POWER button or opens the door during
Service Test Mode, the dryer exits to standby
mode.
NOTE: Door must be closed to perform test.
Dryer must be cool before test to run correctly.
Active Fault Code Display
in Service Test Mode
If the display begins flashing while in Service
Test Mode, 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
To enter Service Test Mode, press and release
the 2nd button used to activate the Service
Diagnostic mode. All LEDs (except for POWER)
turn off, “888” is displayed for 2 seconds, and
the START button begins to flash.
PERFORM ALL TESTS: Press and release the
START button to run ALL tests indicated in the
chart on pages 7 and 8.
VOLTAGE AND WATER SYSTEM-ONLY
TESTS: Press and hold the START button for
5 seconds after step 3 to run only the voltage
and water system tests.
Exit Procedure
When the test is complete, press the POWER
button to exit Service Test Mode and return
to standby mode.
