COMPONENT TESTING
Whirlpool & Maytag 9.2 Cu. Ft. Steam Dryer
n
3-23
For Service Technician Use Only
TEST #10: Service LEDs (some models)
The underside of the user interface (see Figure 1) has 3 LEDs
to help diagnose common problems with the UI, including
unresponsive keys and a non-functioning speaker.
The LEDs are accessed by separating the glass top of the lid
from the lid’s white lower frame.
LED name/color/function is as follows:
n
Service Power (Amber) will flash at 1 Hz when power is
supplied to the UI.
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Service Data (Blue) will illuminate (or flash) to indicate a
functioning communication channel between the UI and
the ACU.
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Service Button Sounds/Control Lock (White) will illuminate
when BOTH of the following are true:
• The Control Lock feature is turned off.
• The Audio Level is NOT turned off.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Failure to do so can result in death or
electrical shock.
Replace all parts and panels before operating.
3$*(
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DESTROY
TEST #10: Service LEDs
The underside of the user interface has 3 LEDs
to help diagnose common problems with the
UI, including unresponsive keys and a non-
functioning speaker.
The LEDs are accessed by separating the glass
top of the lid from the lid’s white lower frame.
LED name/color/function is as follows:
•
Service Power (Amber) will flash at 1 Hz
when power is supplied to the UI.
•
Service Data (Blue) will illuminate (or flash)
to indicate a functioning communication
channel between the UI and the ACU.
•
Service Button Sounds/Control Lock
(White) will illuminate when BOTH of the
following are true:
The Control Lock feature is turned off.
The Audio Level is NOT turned off.
If Service Power LED does not flash, the UI
is not powered properly. Check harness and
harness connections.
If Service Data LED does not illuminate,
either press POWER to turn on/off the dryer,
or unplug the dryer and then plug it back in.
If Service Data LED does not illuminate upon
re-application of power, the UI is not powered
properly. Check harness for continuity, harness
connections, and ACU.
Service Data
(Blue)
Service Power
(Amber)
Service Button Sounds/Control Lock (White)
(May need to remove speaker to see this LED)
If Service Button Sounds/Control Lock LED
does not illuminate, either press POWER to
turn on/off the dryer, or unplug the dryer and
then plug it back in. If Service Button Sounds/
Control Lock LED still does not illuminate:
1.
Verify that the Control Lock feature is
turned off. Press & hold STEAM REFRESH
for 3 seconds to toggle the feature.
2.
Verify that the Audio Level setting is
not muted. Press POWER to turn on the
dryer, then press AUDIO LEVEL until the
corresponding LED illuminates. If the Audio
Level LED is on, but sounds are still not heard,
verify that the speaker is connected to J6 on
the UI.
If all three Service LEDs illuminate/flash as
described above, the UI may need to be replaced.
If
Service
Power
LED does not flash, the UI is not powered
properly. Check harness and harness connections.
If
Service
Data
LED does not illuminate, either press POWER to
turn on/off the dryer, or unplug the dryer and then plug it back
in. If Service Data LED does not illuminate upon re-application
of power, the UI is not powered properly. Check harness for
continuity, harness connections, and ACU.
If
Service Button Sounds/Control Lock
LED does not
illuminate, either press POWER to turn on/off the dryer, or
unplug the dryer and then plug it back in. If Service Button
Sounds/Control Lock LED still does not illuminate:
1. Verify that the Control Lock feature is turned off. Press &
hold STEAM REFRESH for 3 seconds to toggle the feature.
2. Verify that the Audio Level setting is not muted. Press
POWER to turn on the dryer, then press AUDIO LEVEL
until the corresponding LED illuminates. If the Audio Level
LED is on, but sounds are still not heard, verify that the
speaker is connected to J6 on the UI.
If all three Service LEDs illuminate/flash as described above,
the UI may need to be replaced.
Service Power
(Amber)
Service Data
(Blue)
Service Buttons Sounds/Control Lock (White)
(May need to remove speaker to see this LED)
Figure 1 - Service LED’s
