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24.
ERROR HANDLING
a.
KEYBOARD ERROR (E1)
: A keyboard error mode will be generated
under the following conditions: The communication between the Keyboard
microprocessor and the Control microprocessor has failed. A keyboard error will
cause all active elements to shut off and the Downdraft fan to stop. A keyboard
error will sound the beeper for 27 seconds. The “E1” error will remain displayed
until repair is done
b.
TEMPERATURE ERROR (E2):
A temperature error mode is generated
if the controls reach an unacceptable temperature. The temperature error will
cause all active elements to shut off. The cooling Fan will continue to run, up
until the temperature reaches 40C on the way down. A Temperature error will
sound the beeper for 27 seconds. The “E2” error code will be visible until the
temperature lowers to 82 degrees C and the user has touched any key. Then the
unit restarts in Unlock mode.
c.
THERMISTOR FAILURE ERROR (E3):
A thermistor error code will
be generated if the on board thermistor is “short” or “open”. The thermistor error
will cause all active elements to shut off. The cooling fan will run for an
additional ½ hour. A thermistor error will sound the beeper for 27 seconds. The
“E3” error code will remain displayed until the repair is done.
d.
KEY FAILURE ERROR (E4):
A key error mode will be generated if the
keyboard is shorted or opened as reported by the Touch Keyboard
microcontroller. A key error will cause all active elements to shut off and the
Downdraft fan to stop.A keyboard error will sound the beeper for 27 seconds.
The "E4" error code will be visible up until recognition of the failing key is re-
established and the user has touched any key. Then the unit restarts in Unlock
mode.
e.
60Hz FAILURE ERROR (E5):
A 60Hz error mode will be generated if
the pulse generated by the 60Hz circuitry is no longer read by the microcontroller.
A 60Hz error will cause all active elements and the Fan to shut off. A 60Hz
failure will sound the beeper for 27 seconds. The “E5” error code will remain
displayed up until repair is done.
Summary of Contents for SMt364
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