Parts Identification; Eco Failure Codes - DCS WO-227SS Technical Service Manual

Pa rts Identification
EOC FAILURE CODES
All failure modes give a visual and audible alarm. Failure modes can be canceled, but will return after
the appropriate debounce time if the error condition still exists.
—F7— ALARM
A shorted key for 32 seconds in a row will activate a "CANCEL" feature in both ovens.This applies to
all keys, including CANCEL. "-F7-" will be displayed in the time digits and the failure tone will sound
until the CANCEL key is pressed. If CANCEL is the shorted key, pushing another valid function key
will clear the error display and tone.This test will always be active. If other than Stop Time,Timer 1 or
Timer 2 is shorted at power up, the F7 alarm is given immediately.
-FC- ALARM
A breakdown in serial communications between the user interface board and the temperature control
board that is detected by the User Interface board for 4 to 5 seconds will cause an -FC- alarm to be
given.This error alarm is always active.
-F?- Temperature control board Alarms
Additional failure alarms can be generated by the temperature control board.These errors are
transmitted by way of the serial port to be displayed and audibly annunciated.These alarms will be
displayed in the appropriate red temperature display for the oven affected.The appropriate oven will
also be canceled.The possible errors are a follows.
-Fl- Alarm, Element supervisor enabled.
-F2- Over temp Alarm.
-F3- Open oven sensor.
-F4- Shorted oven sensor
-F5- Element supervisor disabled (upper oven).
-F8- Shorted meat probe alarm.
-F9- Error in door lock functions. (upper oven)
-FF- Bad A/D
-F-- Communications error detected by the power relay board. (upper oven)
-Fr- A lower oven error that is equivalent to either an F5, F9 or F- error of the upper oven.
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