Machine Errors
Machine Errors
The control displays and logs errors as they occur. When the con-
trol senses the error condition, the audit counter for that error in-
creases by one. The control saves the time and date of the last
eight (8) errors that have occurred. Following is a list of possible
errors:
PDA Communications Error
These errors may occur during communications. When an error
occurs, the display indicates the error message on the control for
a few seconds. When a PDA communication error occurs, the au-
dit counter Total Bad IR Communications is incremented, the
hour
, date, and year of the event are saved, and the error code is
saved. An active machine cycle is not affected when there is an
error during PDA communications and this error information is
not stored in the Last Eight Alarms Menu.
Network Communications Error
Network errors may occur during communication with a network.
When a network communication error occurs, the audit counter
Total Bad Network Communications is incremented, the hour
,
date, month, and year of the event are saved, and the error code is
saved. This error is not saved in the Last Eight Alarms Menu and
has no affect on an active machine cycle.
Open Thermistor Error
Any time the control senses a temperature less than 0°F [-18°C]
after the first three minutes of an active cycle, the control will go
to Cool Down, display this error message, and then turn on the
audio signal. The control will continue to display the error mes-
sage until any of the keypads are pressed, the Cool Down portion
of the cycle has ended, and the temperature reading is greater
than 0°F. Press any keypad to stop audio signal. Once all three
occur
, the control will return to the Idle Mode. This error will
cause the corresponding Open Thermistor Audit Counter to be in-
cremented and is saved in the Last Eight Alarms Menu.
Shorted Thermistor Error
Any time the control senses a temperature greater than 210°F
[99°C] + 4°F during an active cycle, the control will enter the
Cool Down portion of the cycle, display this error message, and
turn on the audio signal. The control will continue to display the
error message until any of the keypads are pressed, the Cool
Down portion of the cycle has ended, and the temperature read-
ing is less than 210°F [99°C]. Press any keypad to stop audio sig-
nal. Once all three occur, the control will return to the Idle Mode.
This error will cause the corresponding Shorted Thermistor Error
Audit Counter to be incremented and is saved in the Last Eight
Alarms Menu.
Stove and Cabinet Limit Errors
There are up to two Stove Limit thermostats and one Cabinet
Limit thermostat on the machine. While the heat relay is on, if the
stove temperature or cabinet temperature reaches the high tem-
perature for the particular limit thermostat, the heater will turn off
automatically and the control will continue the cycle with no heat
until the limit thermostat resets. Once the control reaches the End
of Cycle the control will display the appropriate error message, if
programmed to do so, and sound the audio signal. The control
will continue displaying the error message until the control re-
turns to Idle mode.
The control will increment the appropriate stove or cabinet error
counter and record the error in the Last Eight Alarms Menu.
NOTE: On some models the stove and cabinet limit
thermostats need to be manually reset. The remainder
of the cycle will be run with no heat. On these models,
the thermostat(s) must be reset prior to cycling power
or the control will return back to Error Mode.
Auto Ignition Retry and Heat Error (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 incre-
ment 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 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) sec-
onds and then turn it back on to try and ignite the gas. The con-
trol will continue to try and ignite the gas until there are no more
programmable retry attempts (factory default is 3) or the gas ig-
nites. If the ICM fails to ignite the gas on the last attempt the con-
trol 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 keypad.
Machine Errors
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