PAGE 5
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DES
TROY
INSTALL DIAGNOSTICS
NOTE:
The Service Diagnostic Mode must be
activated before entering Install Diagnostics;
see procedure on page 3.
NOTE:
If, at any point, the user presses the
“power” button or opens the door during Install
Diagnostics, the dryer exits to standby mode.
Active Fault Code Display
in Install Diagnostics
If the display begins flashing while in Install
Diagnostics, 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 Install Diagnostics, press and release
the
2
nd
button used to activate the Service
Diagnostic mode. All LEDs turn off and the
“start/pause” button begins to flash.
WATER-ONLY TEST:
Press and
hold
the “
start/
pause
” button for ~2–5 seconds to run only
the water system test.
PERFORM ALL TESTS:
Press and
release
the
“
start/pause
” button to run the tests indicated
in the chart below.
Exit Procedure
When test is complete, press the “
power
”
button to exit Install Diagnostics and return
to standby mode. Opening and closing the
door will also exit the test mode.
STEP TEST TEST
DRYER FUNCTION
COMPONENT
NOTES
1
Dryer starts L2 detection algorithm. Motor On
Display shows “- - -” until voltage is
available at UI.
2
L2 detection complete.
Motor On
• If Electric: Display L2 level (range 0
to 200).
• If Gas: Display “
9as
” for gas since L2
does not exist.
3
Dryer starts L1 detection algorithm.
Airflow detection starts at this step.
Motor On
Heater On
L2 continues to be displayed.
4
L1 detection complete.
CCU calculates L1 to L2.
Motor On
Heater On/Off
Once L1 is calculated, L1 to L2 is
immediately calculated in the CCU.
5
Press the START button to cycle
through L1, L2, and L1 to L2.
Motor On
Heater On/Off
• L1 voltage should be 120 V AC ± 10%.
• L2 voltage should be 120 V AC ± 10%,
or “
9as
” if gas dryer.
• L1 to L2 voltage should be 240* V AC
± 10%, or “
9as
” if gas dryer.
6
Airflow test near completion.
Motor On
Heater On/Off
The display will count down the final 15
seconds of the AirFlow detection routine.
7
Airflow detection complete.
Motor Off
Heater Off
When the airflow routine is complete,
the seven-segment display will show
airflow result (0=BAD, 1=GOOD,
2=INVALID).
8
Press the START button to begin
water system test.
Water Valve On
Drum Light On
Display shows “
h28
” when running.
9
Steam test running. LED drum light
and water turn on.
Water Valve On
Drum Light On
Water and LED drum light are actuated
for 30 seconds.
INSTALL DIAGNOSTICS
L
1
L
2
&
L
1
t
o
L
2
D
E
T
E
C
T
A
I
R
F
L
O
W
W
A
T
E
R
Heater On/Off
Heater On
* Dryer performance is optimized for 2-phase, 240 V AC service. If complaint is made regarding dryer performance and the L1 to L2 voltage
is ~208 V AC, dryer may be connected to a 3-phase service with reduced wattage that will decrease dryer performance. Also check the
Customer Focused Dryness Level setting (see page 19).
