Diagnostic Test Descriptions
VFD Balance Weight Test (Design 1 models)
This test is only available on machines equipped with a variable
frequency motor drive.
To start test, control must be in the Diagnostic Testing Mode. Re-
fer to How to Enter Diagnostic Testing Feature at the beginning
of this section.
To enter, press the START (enter) keypad. The display will show
bAL and the START (enter) keypad LED will flash. Close the
door. Press the START (enter) keypad. The door will lock. The
motor will turn at distribution speed. The control monitors the
VFD balance switch for frequency and displays a corresponding
message. Refer to Table 12 .
VFD Balance
Switch Fre-
quency Description Display
0 Switch is always
closed
CLoS
1 Hz
1 H
2 Hz
2 H
3 Hz
3 H
Switch is always
open
oPEn
Table 12
Press the START (enter) keypad to stop the test. The door will
not unlock until the basket stops or the coast time has expired.
Drive DC Bus Display Test (Design 2 and 3 mod-
els)
This test is only available on machines equipped with a custom
drive.
To start test, control must be in the Diagnostic Testing Mode. Re-
fer to How to Enter Diagnostic Testing Feature at the beginning
of this section.
To enter, press the START (enter) keypad. The display will show
dCb and the START (enter) keypad LED will flash. Close the
door. Press the START (enter) keypad. The door will lock. The
control will turn on the drive and ramp up the motor to distribu-
tion speed. The drive’s DC Bus Voltage will display.
Water Purge Test
This option empties all water from the machine.
To start test, control must be in the Diagnostic Testing Mode. Re-
fer to How to Enter Diagnostic Testing Feature at the beginning
of this section.
To enter, press the START (enter) keypad. The display will show
PUrg and the START (enter) keypad LED will flash. Close the
door. Press the START (enter) keypad. The door will lock. The
display will show FLSH. The control will energize all water
valves and supply outputs while keeping the drain valves open.
The test will end, return to Water Purge Test start prompt, and
door will unlock if any keypad is pressed, the door is unlocked or
opened, if an end test communication is received or if two (2) mi-
nutes has occurred since the test began. The control will prevent
the door from being unlocked until there is no water in the ma-
chine.
Water Leak Detection Test
This option allows the owner to test for a water leak in the ma-
chine.
To start test, control must be in the Diagnostic Testing Mode. Re-
fer to How to Enter Diagnostic Testing Feature at the beginning
of this section.
To enter, press the START (enter) keypad. The display will show
Ld and the START (enter) keypad LED will flash if the door is
closed. Press the START (enter) keypad. The door will lock. The
control closes the drain valve, turns the pump off and fills the ma-
chine with cold water to low level. The water level is monitored
for two (2) minutes and the display shows an alternating horizon-
tal segment while the control is monitoring the water level. If af-
ter two (2) minutes the water level is the same, control will dis-
play PASS, water will drain, door will unlock and control will re-
turn to Ready Mode. If water level is lower, indicating a leak in
the drain, control will display FAIL, water will drain, door will
unlock and water leak detection error will display as E Ld.
On Design 2 and 3 models, if water level is higher, indicating a
leak in the fill valve, control will display FAIL, water will drain,
door will unlock and water leak detection error will display as E
LF.
Drive Software Version Number Test (Design 2
and 3 models)
This option displays the custom drive software version number.
To start test, control must be in the Diagnostic Testing Mode. Re-
fer to How to Enter Diagnostic Testing Feature at the beginning
of this section.
To enter, press the START (enter) keypad. The display will show
drxx where xx is the custom drive software version number.
To exit the Custom Drive Software Version Number Test, press
the #5 (<) keypad. The control will return to the Diagnostic Test-
ing Mode.
Testing Machine and Electronic Control Functions
©
Copyright, Alliance Laundry Systems LLC -
DO NOT COPY or TRANSMIT
43 Part No. F8237801ENR13
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