Fault Elimination; Fault Indication - Nordmann AT4 Operating Instructions Manual

7

Fault elimination

7.1

Fault indication

Malfunctions during operation are indicated by a corresponding Warning
or Error message in the display of the control unit:
Warning messages
–
Warning
W21 Cyl.Max.Level
Menu Info
The control of the Nordmann AT4 checks whether there is a temporary
problem (e.g. water supply interrupted for a short time) or whether it
can resolve the problem by taking necessary measures. If the cause of
the malfunction disappears of its own accord or if the control can repair
the malfunction, the alarm message will automatically switch off. If the
cause of the malfunction does not disappear even after a longer period
of time, a error message is triggered.
– Error message (additionally to the error message the red LED lights)
Error
E33 Lim Sens broken
Menu Info
Further operation is normally not possible any longer, the unit is blocked.
To eliminate the malfunction see chapter 7.1 and 7.3.
Note: After eliminating the malfunction the error message must be reset
(see chapter 7.4).
By pressing the <Info> key additional information can be displayed for each
warning and/or error message.
Error 33
Lim Sens broken
No sensor signal
humidity sensor def.
Esc
Note: if you want to see further information of an active warning or error
message of a humidifier on the optional remote terminal, select "Excep­
tion" in the diagnostic menu of the appropriate steam humidifier (appears
only on the remote terminal), then press <Set> key:
Main Menu
AT4 130kg/h 400V3
User
Standby
Engineering :Set
Diagnostic
2011-08-31 12.00.00
Menu 1
Diagnostic
:Set Exception
ErrorHistory:Set
:Set Unit Status :Set
Remote Test :Set
Modul-B Test:Set
Esc Set Esc
Error 33
Lim Sens broken
No sensor signal
humidity sensor def.
Esc
:Set
Set
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