Alliance Laundry Systems 70444901R3 - Manual (Page 37)

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Machine Errors
35 70444901
Auto Ignition Retry (Gas Models
Only)
If the Ignition Control Module (ICM) fails to ignite the
gas valve the ICM will send an ICM Lockout Alarm to
the control. When the control receives the ICM
Lockout Alarm it will increment the ICM Lockout
Alarm audit counter. When the error becomes fatal
(user input needed to restart the machine) the control
will increment the Heat Error audit counter and record
the Heat Error in the Last Eight Alarms Menu.
If the ICM needs to be manually reset, when the
control receives the ICM Lockout Alarm it will
display the Cycle Stopped Menu with text prompting
the user to press the Start (
) keypad to reset the
ICM. The user can continue to reset the ICM until
there are no more programmable retry attempts
(factory default is 3) or the gas ignites. On machines
equipped with an ICM that does not need to be
manually reset, when the control receives the ICM
Lockout Alarm it will turn the heat relay off for twenty
(20) seconds and then turn it back on to try and ignite
the gas. The control will continue to try and ignite the
gas until there are no more programmable retry
attempts (factory default is 3) or the gas ignites. If the
ICM fails to ignite the gas on the last attempt the
control will start the Cool Down portion of the cycle,
display the heat error message and sound the audio
signal. When the Cool Down portion of the cycle ends
the control will continue to display the error message
until power is cycled to the machine or a user presses
the Back ( ) keypad.
Air Flow Switch Errors
The control will flag an Airflow Switch Error under
several conditions. Airflow Switch Errors will be
processed differently depending upon what state the
machine was in when the error was detected.
Airflow Switch Sensed Closed While Not
In Run Mode
If an airflow switch is sensed closed 30 seconds after
entering Idle Mode, Pause Mode or End of Cycle
Mode, the control will display an error message until
power is cycled or the error clears. The cycle will not
start and all user inputs will be ignored. If the error
does clear, the control will go back to its previous
mode of operation. When this error occurs the Airflow
Switch 1 error counter will be incremented and the
error will also be saved to the Last Eight Alarms
Menu.
Airflow Switch Does Not Close After Cycle
Started
If the airflow switch does not close within 5 seconds
of the start/re-start of a cycle, the control will go to the
Cool Down portion of the cycle, display an error
message and sound the audio alarm. Once the Cool
Down portion of the cycle ends, the control will
continue to display the error message until the power
is cycled to the machine or the Back ( ) keypad is
pressed. When this error occurs, the Airflow Switch 2
error counter will be incremented and the error will
also be saved to the Last Eight Alarms Menu.
Airflow Switch Bounces During A
Running Cycle
If the airflow switch is open for at least one second,
the heat will be turned off and will remain off until the
switch is observed closed for at least 5 seconds (it is
flagged as an airflow switch bounce). If there are 5
airflow switch bounces within 5 minutes the control
will go to the Cool Down portion of the cycle, display
an error message and sound the audio signal. When the
Cool Down portion of the cycle ends, the control will
continue displaying the error message until power is
cycled or a user presses the Back ( ) keypad. When
this error occurs, the Airflow Switch Bounce Error
will be incremented and the error will also be saved to
the Last Eight Alarms Menu. The Airflow Switch
Bounce counter will be incremented for every instance
of an airflow switch bounce.
Rotation Sensor Error
If the machine is equipped with a rotation sensor, the
control will constantly monitor the input and calculate
the cylinder’s rpm. If the rpm drops to zero while the
cylinder is supposed to be spinning, the control will go
to the Cool Down portion of the cycle. The control
will display an error message and sound the audio
signal. Once the Cool Down portion ends, the control
will continue to display the error message until power
is cycled to the machine. This error will increment the
Rotation Sensor Error counter and will be saved in the
Last Eight Alarms Menu.