CEX-O_CEX-U, Maintenance and User Instructions V1.02 Page 12 March / 2014
“Er”: Diagnostics
The last ten diagnostic messages can be displayed.
Pressing program key 1 displays the current error code. A key explaining the
error codes can be found inside the front cover of the appliance.
The arrow up and arrow down keys can be used to view the last ten
error codes displayed in chronological order from “0” to “9” alongside the
corresponding error code with “0” being the most recent.
“LL”: Lock level
The operating mode of the appliance can be restricted.
Setting options:
“0” No restriction (factory setting).
“1” Disables “Reset to factory setting”. Parameters can be viewed but not
modied in service menu.
“2” As “1”, additionally service menu cannot be displayed.
“3” As “2”, additionally program 1 and 2 set temperature values cannot be
changed
“4” As “3”, additionally set temperature value on appliance cannot be
changed.
Note: when lock level 1, 2, 3 or 4 is selected the system parameters cannot be
modied in the service menu.
In order to modify system parameters it is necessary to remove the jumper from
the main PCB as described under “Deactivation of the Lock level”.
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